/*
==============================================================================
This file is part of the JUCE library.
Copyright (c) 2017 - ROLI Ltd.
JUCE is an open source library subject to commercial or open-source
licensing.
By using JUCE, you agree to the terms of both the JUCE 5 End-User License
Agreement and JUCE 5 Privacy Policy (both updated and effective as of the
27th April 2017).
End User License Agreement: www.juce.com/juce-5-licence
Privacy Policy: www.juce.com/juce-5-privacy-policy
Or: You may also use this code under the terms of the GPL v3 (see
www.gnu.org/licenses).
JUCE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL WARRANTIES, WHETHER
EXPRESSED OR IMPLIED, INCLUDING MERCHANTABILITY AND FITNESS FOR PURPOSE, ARE
DISCLAIMED.
==============================================================================
*/
namespace juce
{
#if JUCE_DEBUG && ! defined (JUCE_DEBUG_XERRORS)
#define JUCE_DEBUG_XERRORS 1
#endif
#if JUCE_MODULE_AVAILABLE_juce_gui_extra
#define JUCE_X11_SUPPORTS_XEMBED 1
#else
#define JUCE_X11_SUPPORTS_XEMBED 0
#endif
#if JUCE_X11_SUPPORTS_XEMBED
bool juce_handleXEmbedEvent (ComponentPeer*, void*);
unsigned long juce_getCurrentFocusWindow (ComponentPeer*);
#endif
extern WindowMessageReceiveCallback dispatchWindowMessage;
extern XContext windowHandleXContext;
//=============================== X11 - Keys ===================================
namespace Keys
{
enum MouseButtons
{
NoButton = 0,
LeftButton = 1,
MiddleButton = 2,
RightButton = 3,
WheelUp = 4,
WheelDown = 5
};
static int AltMask = 0;
static int NumLockMask = 0;
static bool numLock = false;
static bool capsLock = false;
static char keyStates [32];
static const int extendedKeyModifier = 0x10000000;
}
bool KeyPress::isKeyCurrentlyDown (int keyCode)
{
ScopedXDisplay xDisplay;
if (auto display = xDisplay.display)
{
int keysym;
if (keyCode & Keys::extendedKeyModifier)
{
keysym = 0xff00 | (keyCode & 0xff);
}
else
{
keysym = keyCode;
if (keysym == (XK_Tab & 0xff)
|| keysym == (XK_Return & 0xff)
|| keysym == (XK_Escape & 0xff)
|| keysym == (XK_BackSpace & 0xff))
{
keysym |= 0xff00;
}
}
ScopedXLock xlock (display);
const int keycode = XKeysymToKeycode (display, (KeySym) keysym);
const int keybyte = keycode >> 3;
const int keybit = (1 << (keycode & 7));
return (Keys::keyStates [keybyte] & keybit) != 0;
}
return false;
}
//==============================================================================
const int KeyPress::spaceKey = XK_space & 0xff;
const int KeyPress::returnKey = XK_Return & 0xff;
const int KeyPress::escapeKey = XK_Escape & 0xff;
const int KeyPress::backspaceKey = XK_BackSpace & 0xff;
const int KeyPress::leftKey = (XK_Left & 0xff) | Keys::extendedKeyModifier;
const int KeyPress::rightKey = (XK_Right & 0xff) | Keys::extendedKeyModifier;
const int KeyPress::upKey = (XK_Up & 0xff) | Keys::extendedKeyModifier;
const int KeyPress::downKey = (XK_Down & 0xff) | Keys::extendedKeyModifier;
const int KeyPress::pageUpKey = (XK_Page_Up & 0xff) | Keys::extendedKeyModifier;
const int KeyPress::pageDownKey = (XK_Page_Down & 0xff) | Keys::extendedKeyModifier;
const int KeyPress::endKey = (XK_End & 0xff) | Keys::extendedKeyModifier;
const int KeyPress::homeKey = (XK_Home & 0xff) | Keys::extendedKeyModifier;
const int KeyPress::insertKey = (XK_Insert & 0xff) | Keys::extendedKeyModifier;
const int KeyPress::deleteKey = (XK_Delete & 0xff) | Keys::extendedKeyModifier;
const int KeyPress::tabKey = XK_Tab & 0xff;
const int KeyPress::F1Key = (XK_F1 & 0xff) | Keys::extendedKeyModifier;
const int KeyPress::F2Key = (XK_F2 & 0xff) | Keys::extendedKeyModifier;
const int KeyPress::F3Key = (XK_F3 & 0xff) | Keys::extendedKeyModifier;
const int KeyPress::F4Key = (XK_F4 & 0xff) | Keys::extendedKeyModifier;
const int KeyPress::F5Key = (XK_F5 & 0xff) | Keys::extendedKeyModifier;
const int KeyPress::F6Key = (XK_F6 & 0xff) | Keys::extendedKeyModifier;
const int KeyPress::F7Key = (XK_F7 & 0xff) | Keys::extendedKeyModifier;
const int KeyPress::F8Key = (XK_F8 & 0xff) | Keys::extendedKeyModifier;
const int KeyPress::F9Key = (XK_F9 & 0xff) | Keys::extendedKeyModifier;
const int KeyPress::F10Key = (XK_F10 & 0xff) | Keys::extendedKeyModifier;
const int KeyPress::F11Key = (XK_F11 & 0xff) | Keys::extendedKeyModifier;
const int KeyPress::F12Key = (XK_F12 & 0xff) | Keys::extendedKeyModifier;
const int KeyPress::F13Key = (XK_F13 & 0xff) | Keys::extendedKeyModifier;
const int KeyPress::F14Key = (XK_F14 & 0xff) | Keys::extendedKeyModifier;
const int KeyPress::F15Key = (XK_F15 & 0xff) | Keys::extendedKeyModifier;
const int KeyPress::F16Key = (XK_F16 & 0xff) | Keys::extendedKeyModifier;
const int KeyPress::F17Key = (XK_F17 & 0xff) | Keys::extendedKeyModifier;
const int KeyPress::F18Key = (XK_F18 & 0xff) | Keys::extendedKeyModifier;
const int KeyPress::F19Key = (XK_F19 & 0xff) | Keys::extendedKeyModifier;
const int KeyPress::F20Key = (XK_F20 & 0xff) | Keys::extendedKeyModifier;
const int KeyPress::F21Key = (XK_F21 & 0xff) | Keys::extendedKeyModifier;
const int KeyPress::F22Key = (XK_F22 & 0xff) | Keys::extendedKeyModifier;
const int KeyPress::F23Key = (XK_F23 & 0xff) | Keys::extendedKeyModifier;
const int KeyPress::F24Key = (XK_F24 & 0xff) | Keys::extendedKeyModifier;
const int KeyPress::F25Key = (XK_F25 & 0xff) | Keys::extendedKeyModifier;
const int KeyPress::F26Key = (XK_F26 & 0xff) | Keys::extendedKeyModifier;
const int KeyPress::F27Key = (XK_F27 & 0xff) | Keys::extendedKeyModifier;
const int KeyPress::F28Key = (XK_F28 & 0xff) | Keys::extendedKeyModifier;
const int KeyPress::F29Key = (XK_F29 & 0xff) | Keys::extendedKeyModifier;
const int KeyPress::F30Key = (XK_F30 & 0xff) | Keys::extendedKeyModifier;
const int KeyPress::F31Key = (XK_F31 & 0xff) | Keys::extendedKeyModifier;
const int KeyPress::F32Key = (XK_F32 & 0xff) | Keys::extendedKeyModifier;
const int KeyPress::F33Key = (XK_F33 & 0xff) | Keys::extendedKeyModifier;
const int KeyPress::F34Key = (XK_F34 & 0xff) | Keys::extendedKeyModifier;
const int KeyPress::F35Key = (XK_F35 & 0xff) | Keys::extendedKeyModifier;
const int KeyPress::numberPad0 = (XK_KP_0 & 0xff) | Keys::extendedKeyModifier;
const int KeyPress::numberPad1 = (XK_KP_1 & 0xff) | Keys::extendedKeyModifier;
const int KeyPress::numberPad2 = (XK_KP_2 & 0xff) | Keys::extendedKeyModifier;
const int KeyPress::numberPad3 = (XK_KP_3 & 0xff) | Keys::extendedKeyModifier;
const int KeyPress::numberPad4 = (XK_KP_4 & 0xff) | Keys::extendedKeyModifier;
const int KeyPress::numberPad5 = (XK_KP_5 & 0xff) | Keys::extendedKeyModifier;
const int KeyPress::numberPad6 = (XK_KP_6 & 0xff) | Keys::extendedKeyModifier;
const int KeyPress::numberPad7 = (XK_KP_7 & 0xff)| Keys::extendedKeyModifier;
const int KeyPress::numberPad8 = (XK_KP_8 & 0xff)| Keys::extendedKeyModifier;
const int KeyPress::numberPad9 = (XK_KP_9 & 0xff)| Keys::extendedKeyModifier;
const int KeyPress::numberPadAdd = (XK_KP_Add & 0xff)| Keys::extendedKeyModifier;
const int KeyPress::numberPadSubtract = (XK_KP_Subtract & 0xff)| Keys::extendedKeyModifier;
const int KeyPress::numberPadMultiply = (XK_KP_Multiply & 0xff)| Keys::extendedKeyModifier;
const int KeyPress::numberPadDivide = (XK_KP_Divide & 0xff)| Keys::extendedKeyModifier;
const int KeyPress::numberPadSeparator = (XK_KP_Separator & 0xff)| Keys::extendedKeyModifier;
const int KeyPress::numberPadDecimalPoint = (XK_KP_Decimal & 0xff)| Keys::extendedKeyModifier;
const int KeyPress::numberPadEquals = (XK_KP_Equal & 0xff)| Keys::extendedKeyModifier;
const int KeyPress::numberPadDelete = (XK_KP_Delete & 0xff)| Keys::extendedKeyModifier;
const int KeyPress::playKey = ((int) 0xffeeff00) | Keys::extendedKeyModifier;
const int KeyPress::stopKey = ((int) 0xffeeff01) | Keys::extendedKeyModifier;
const int KeyPress::fastForwardKey = ((int) 0xffeeff02) | Keys::extendedKeyModifier;
const int KeyPress::rewindKey = ((int) 0xffeeff03) | Keys::extendedKeyModifier;
//================================== X11 - Shm =================================
#if JUCE_USE_XSHM
namespace XSHMHelpers
{
static int trappedErrorCode = 0;
extern "C" int errorTrapHandler (Display*, XErrorEvent* err)
{
trappedErrorCode = err->error_code;
return 0;
}
static bool isShmAvailable (::Display* display) noexcept
{
static bool isChecked = false;
static bool isAvailable = false;
if (! isChecked)
{
isChecked = true;
if (display != nullptr)
{
int major, minor;
Bool pixmaps;
ScopedXLock xlock (display);
if (XShmQueryVersion (display, &major, &minor, &pixmaps))
{
trappedErrorCode = 0;
XErrorHandler oldHandler = XSetErrorHandler (errorTrapHandler);
XShmSegmentInfo segmentInfo;
zerostruct (segmentInfo);
if (auto* xImage = XShmCreateImage (display, DefaultVisual (display, DefaultScreen (display)),
24, ZPixmap, 0, &segmentInfo, 50, 50))
{
if ((segmentInfo.shmid = shmget (IPC_PRIVATE,
(size_t) (xImage->bytes_per_line * xImage->height),
IPC_CREAT | 0777)) >= 0)
{
segmentInfo.shmaddr = (char*) shmat (segmentInfo.shmid, 0, 0);
if (segmentInfo.shmaddr != (void*) -1)
{
segmentInfo.readOnly = False;
xImage->data = segmentInfo.shmaddr;
XSync (display, False);
if (XShmAttach (display, &segmentInfo) != 0)
{
XSync (display, False);
XShmDetach (display, &segmentInfo);
isAvailable = true;
}
}
XFlush (display);
XDestroyImage (xImage);
shmdt (segmentInfo.shmaddr);
}
shmctl (segmentInfo.shmid, IPC_RMID, 0);
XSetErrorHandler (oldHandler);
if (trappedErrorCode != 0)
isAvailable = false;
}
}
}
}
return isAvailable;
}
}
#endif
//=============================== X11 - Render =================================
#if JUCE_USE_XRENDER
namespace XRender
{
typedef Status (*tXRenderQueryVersion) (Display*, int*, int*);
typedef XRenderPictFormat* (*tXRenderFindStandardFormat) (Display*, int);
typedef XRenderPictFormat* (*tXRenderFindFormat) (Display*, unsigned long, XRenderPictFormat*, int);
typedef XRenderPictFormat* (*tXRenderFindVisualFormat) (Display*, Visual*);
static tXRenderQueryVersion xRenderQueryVersion = nullptr;
static tXRenderFindStandardFormat xRenderFindStandardFormat = nullptr;
static tXRenderFindFormat xRenderFindFormat = nullptr;
static tXRenderFindVisualFormat xRenderFindVisualFormat = nullptr;
static bool isAvailable (::Display* display)
{
static bool hasLoaded = false;
if (! hasLoaded)
{
if (display != nullptr)
{
hasLoaded = true;
ScopedXLock xlock (display);
if (void* h = dlopen ("libXrender.so.1", RTLD_GLOBAL | RTLD_NOW))
{
xRenderQueryVersion = (tXRenderQueryVersion) dlsym (h, "XRenderQueryVersion");
xRenderFindStandardFormat = (tXRenderFindStandardFormat) dlsym (h, "XRenderFindStandardFormat");
xRenderFindFormat = (tXRenderFindFormat) dlsym (h, "XRenderFindFormat");
xRenderFindVisualFormat = (tXRenderFindVisualFormat) dlsym (h, "XRenderFindVisualFormat");
}
if (xRenderQueryVersion != nullptr
&& xRenderFindStandardFormat != nullptr
&& xRenderFindFormat != nullptr
&& xRenderFindVisualFormat != nullptr)
{
int major, minor;
if (xRenderQueryVersion (display, &major, &minor))
return true;
}
}
xRenderQueryVersion = nullptr;
}
return xRenderQueryVersion != nullptr;
}
static bool hasCompositingWindowManager (::Display* display) noexcept
{
return display != nullptr
&& XGetSelectionOwner (display, Atoms::getCreating (display, "_NET_WM_CM_S0")) != 0;
}
static XRenderPictFormat* findPictureFormat (::Display* display)
{
ScopedXLock xlock (display);
XRenderPictFormat* pictFormat = nullptr;
if (isAvailable (display))
{
pictFormat = xRenderFindStandardFormat (display, PictStandardARGB32);
if (pictFormat == nullptr)
{
XRenderPictFormat desiredFormat;
desiredFormat.type = PictTypeDirect;
desiredFormat.depth = 32;
desiredFormat.direct.alphaMask = 0xff;
desiredFormat.direct.redMask = 0xff;
desiredFormat.direct.greenMask = 0xff;
desiredFormat.direct.blueMask = 0xff;
desiredFormat.direct.alpha = 24;
desiredFormat.direct.red = 16;
desiredFormat.direct.green = 8;
desiredFormat.direct.blue = 0;
pictFormat = xRenderFindFormat (display,
PictFormatType | PictFormatDepth
| PictFormatRedMask | PictFormatRed
| PictFormatGreenMask | PictFormatGreen
| PictFormatBlueMask | PictFormatBlue
| PictFormatAlphaMask | PictFormatAlpha,
&desiredFormat,
0);
}
}
return pictFormat;
}
}
#endif
//================================ X11 - Visuals ===============================
namespace Visuals
{
static Visual* findVisualWithDepth (::Display* display, int desiredDepth) noexcept
{
ScopedXLock xlock (display);
Visual* visual = nullptr;
int numVisuals = 0;
long desiredMask = VisualNoMask;
XVisualInfo desiredVisual;
desiredVisual.screen = DefaultScreen (display);
desiredVisual.depth = desiredDepth;
desiredMask = VisualScreenMask | VisualDepthMask;
if (desiredDepth == 32)
{
desiredVisual.c_class = TrueColor;
desiredVisual.red_mask = 0x00FF0000;
desiredVisual.green_mask = 0x0000FF00;
desiredVisual.blue_mask = 0x000000FF;
desiredVisual.bits_per_rgb = 8;
desiredMask |= VisualClassMask;
desiredMask |= VisualRedMaskMask;
desiredMask |= VisualGreenMaskMask;
desiredMask |= VisualBlueMaskMask;
desiredMask |= VisualBitsPerRGBMask;
}
if (auto* xvinfos = XGetVisualInfo (display, desiredMask, &desiredVisual, &numVisuals))
{
for (int i = 0; i < numVisuals; i++)
{
if (xvinfos[i].depth == desiredDepth)
{
visual = xvinfos[i].visual;
break;
}
}
XFree (xvinfos);
}
return visual;
}
static Visual* findVisualFormat (::Display* display, int desiredDepth, int& matchedDepth) noexcept
{
Visual* visual = nullptr;
if (desiredDepth == 32)
{
#if JUCE_USE_XSHM
if (XSHMHelpers::isShmAvailable (display))
{
#if JUCE_USE_XRENDER
if (XRender::isAvailable (display))
{
if (auto pictFormat = XRender::findPictureFormat (display))
{
int numVisuals = 0;
XVisualInfo desiredVisual;
desiredVisual.screen = DefaultScreen (display);
desiredVisual.depth = 32;
desiredVisual.bits_per_rgb = 8;
if (auto xvinfos = XGetVisualInfo (display,
VisualScreenMask | VisualDepthMask | VisualBitsPerRGBMask,
&desiredVisual, &numVisuals))
{
for (int i = 0; i < numVisuals; ++i)
{
auto pictVisualFormat = XRender::xRenderFindVisualFormat (display, xvinfos[i].visual);
if (pictVisualFormat != nullptr
&& pictVisualFormat->type == PictTypeDirect
&& pictVisualFormat->direct.alphaMask)
{
visual = xvinfos[i].visual;
matchedDepth = 32;
break;
}
}
XFree (xvinfos);
}
}
}
#endif
if (visual == nullptr)
{
visual = findVisualWithDepth (display, 32);
if (visual != nullptr)
matchedDepth = 32;
}
}
#endif
}
if (visual == nullptr && desiredDepth >= 24)
{
visual = findVisualWithDepth (display, 24);
if (visual != nullptr)
matchedDepth = 24;
}
if (visual == nullptr && desiredDepth >= 16)
{
visual = findVisualWithDepth (display, 16);
if (visual != nullptr)
matchedDepth = 16;
}
return visual;
}
}
//================================= X11 - Bitmap ===============================
class XBitmapImage : public ImagePixelData
{
public:
XBitmapImage (::Display* d, Image::PixelFormat format, int w, int h,
bool clearImage, unsigned int imageDepth_, Visual* visual)
: ImagePixelData (format, w, h),
imageDepth (imageDepth_),
display (d)
{
jassert (format == Image::RGB || format == Image::ARGB);
pixelStride = (format == Image::RGB) ? 3 : 4;
lineStride = ((w * pixelStride + 3) & ~3);
ScopedXLock xlock (display);
#if JUCE_USE_XSHM
usingXShm = false;
if ((imageDepth > 16) && XSHMHelpers::isShmAvailable (display))
{
zerostruct (segmentInfo);
segmentInfo.shmid = -1;
segmentInfo.shmaddr = (char *) -1;
segmentInfo.readOnly = False;
xImage = XShmCreateImage (display, visual, imageDepth, ZPixmap, 0,
&segmentInfo, (unsigned int) w, (unsigned int) h);
if (xImage != nullptr)
{
if ((segmentInfo.shmid = shmget (IPC_PRIVATE,
(size_t) (xImage->bytes_per_line * xImage->height),
IPC_CREAT | 0777)) >= 0)
{
if (segmentInfo.shmid != -1)
{
segmentInfo.shmaddr = (char*) shmat (segmentInfo.shmid, 0, 0);
if (segmentInfo.shmaddr != (void*) -1)
{
segmentInfo.readOnly = False;
xImage->data = segmentInfo.shmaddr;
imageData = (uint8*) segmentInfo.shmaddr;
if (XShmAttach (display, &segmentInfo) != 0)
usingXShm = true;
else
jassertfalse;
}
else
{
shmctl (segmentInfo.shmid, IPC_RMID, 0);
}
}
}
}
}
if (! isUsingXShm())
#endif
{
imageDataAllocated.allocate ((size_t) (lineStride * h), format == Image::ARGB && clearImage);
imageData = imageDataAllocated;
xImage = (XImage*) ::calloc (1, sizeof (XImage));
xImage->width = w;
xImage->height = h;
xImage->xoffset = 0;
xImage->format = ZPixmap;
xImage->data = (char*) imageData;
xImage->byte_order = ImageByteOrder (display);
xImage->bitmap_unit = BitmapUnit (display);
xImage->bitmap_bit_order = BitmapBitOrder (display);
xImage->bitmap_pad = 32;
xImage->depth = pixelStride * 8;
xImage->bytes_per_line = lineStride;
xImage->bits_per_pixel = pixelStride * 8;
xImage->red_mask = 0x00FF0000;
xImage->green_mask = 0x0000FF00;
xImage->blue_mask = 0x000000FF;
if (imageDepth == 16)
{
const int pixStride = 2;
const int stride = ((w * pixStride + 3) & ~3);
imageData16Bit.malloc (stride * h);
xImage->data = imageData16Bit;
xImage->bitmap_pad = 16;
xImage->depth = pixStride * 8;
xImage->bytes_per_line = stride;
xImage->bits_per_pixel = pixStride * 8;
xImage->red_mask = visual->red_mask;
xImage->green_mask = visual->green_mask;
xImage->blue_mask = visual->blue_mask;
}
if (! XInitImage (xImage))
jassertfalse;
}
}
~XBitmapImage()
{
ScopedXLock xlock (display);
if (gc != None)
XFreeGC (display, gc);
#if JUCE_USE_XSHM
if (isUsingXShm())
{
XShmDetach (display, &segmentInfo);
XFlush (display);
XDestroyImage (xImage);
shmdt (segmentInfo.shmaddr);
shmctl (segmentInfo.shmid, IPC_RMID, 0);
}
else
#endif
{
xImage->data = nullptr;
XDestroyImage (xImage);
}
}
LowLevelGraphicsContext* createLowLevelContext() override
{
sendDataChangeMessage();
return new LowLevelGraphicsSoftwareRenderer (Image (this));
}
void initialiseBitmapData (Image::BitmapData& bitmap, int x, int y,
Image::BitmapData::ReadWriteMode mode) override
{
bitmap.data = imageData + x * pixelStride + y * lineStride;
bitmap.pixelFormat = pixelFormat;
bitmap.lineStride = lineStride;
bitmap.pixelStride = pixelStride;
if (mode != Image::BitmapData::readOnly)
sendDataChangeMessage();
}
ImagePixelData::Ptr clone() override
{
jassertfalse;
return nullptr;
}
ImageType* createType() const override { return new NativeImageType(); }
void blitToWindow (Window window, int dx, int dy,
unsigned int dw, unsigned int dh, int sx, int sy)
{
ScopedXLock xlock (display);
if (gc == None)
{
XGCValues gcvalues;
gcvalues.foreground = None;
gcvalues.background = None;
gcvalues.function = GXcopy;
gcvalues.plane_mask = AllPlanes;
gcvalues.clip_mask = None;
gcvalues.graphics_exposures = False;
gc = XCreateGC (display, window,
GCBackground | GCForeground | GCFunction | GCPlaneMask | GCClipMask | GCGraphicsExposures,
&gcvalues);
}
if (imageDepth == 16)
{
auto rMask = (uint32) xImage->red_mask;
auto gMask = (uint32) xImage->green_mask;
auto bMask = (uint32) xImage->blue_mask;
auto rShiftL = (uint32) jmax (0, getShiftNeeded (rMask));
auto rShiftR = (uint32) jmax (0, -getShiftNeeded (rMask));
auto gShiftL = (uint32) jmax (0, getShiftNeeded (gMask));
auto gShiftR = (uint32) jmax (0, -getShiftNeeded (gMask));
auto bShiftL = (uint32) jmax (0, getShiftNeeded (bMask));
auto bShiftR = (uint32) jmax (0, -getShiftNeeded (bMask));
const Image::BitmapData srcData (Image (this), Image::BitmapData::readOnly);
for (int y = sy; y < sy + (int)dh; ++y)
{
const uint8* p = srcData.getPixelPointer (sx, y);
for (int x = sx; x < sx + (int)dw; ++x)
{
auto* pixel = (const PixelRGB*) p;
p += srcData.pixelStride;
XPutPixel (xImage, x, y,
(((((uint32) pixel->getRed()) << rShiftL) >> rShiftR) & rMask)
| (((((uint32) pixel->getGreen()) << gShiftL) >> gShiftR) & gMask)
| (((((uint32) pixel->getBlue()) << bShiftL) >> bShiftR) & bMask));
}
}
}
// blit results to screen.
#if JUCE_USE_XSHM
if (isUsingXShm())
XShmPutImage (display, (::Drawable) window, gc, xImage, sx, sy, dx, dy, dw, dh, True);
else
#endif
XPutImage (display, (::Drawable) window, gc, xImage, sx, sy, dx, dy, dw, dh);
}
#if JUCE_USE_XSHM
bool isUsingXShm() const noexcept { return usingXShm; }
#endif
private:
//==============================================================================
XImage* xImage = {};
const unsigned int imageDepth;
HeapBlock<uint8> imageDataAllocated;
HeapBlock<char> imageData16Bit;
int pixelStride, lineStride;
uint8* imageData = {};
GC gc = None;
::Display* display = {};
#if JUCE_USE_XSHM
XShmSegmentInfo segmentInfo;
bool usingXShm;
#endif
static int getShiftNeeded (const uint32 mask) noexcept
{
for (int i = 32; --i >= 0;)
if (((mask >> i) & 1) != 0)
return i - 7;
jassertfalse;
return 0;
}
JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (XBitmapImage)
};
//==============================================================================
#if JUCE_USE_XINERAMA
static Array<XineramaScreenInfo> XineramaQueryDisplays (::Display* display)
{
typedef Bool (*tXineramaIsActive) (::Display*);
typedef XineramaScreenInfo* (*tXineramaQueryScreens) (::Display*, int*);
int major_opcode, first_event, first_error;
if (XQueryExtension (display, "XINERAMA", &major_opcode, &first_event, &first_error))
{
static void* libXinerama = nullptr;
static tXineramaIsActive isActiveFuncPtr = nullptr;
static tXineramaQueryScreens xineramaQueryScreens = nullptr;
if (libXinerama == nullptr)
{
libXinerama = dlopen ("libXinerama.so", RTLD_GLOBAL | RTLD_NOW);
if (libXinerama == nullptr)
libXinerama = dlopen ("libXinerama.so.1", RTLD_GLOBAL | RTLD_NOW);
if (libXinerama != nullptr)
{
isActiveFuncPtr = (tXineramaIsActive) dlsym (libXinerama, "XineramaIsActive");
xineramaQueryScreens = (tXineramaQueryScreens) dlsym (libXinerama, "XineramaQueryScreens");
}
}
if (isActiveFuncPtr != nullptr && xineramaQueryScreens != nullptr && isActiveFuncPtr (display) != 0)
{
int numScreens;
if (auto* xinfo = xineramaQueryScreens (display, &numScreens))
{
Array<XineramaScreenInfo> infos (xinfo, numScreens);
XFree (xinfo);
return infos;
}
}
}
return {};
}
#endif
//==============================================================================
#if JUCE_USE_XRANDR
class XRandrWrapper
{
private:
XRandrWrapper()
{
if (libXrandr == nullptr)
{
libXrandr = dlopen ("libXrandr.so", RTLD_GLOBAL | RTLD_NOW);
if (libXrandr == nullptr)
libXrandr = dlopen ("libXrandr.so.2", RTLD_GLOBAL | RTLD_NOW);
if (libXrandr != nullptr)
{
getScreenResourcesPtr = (tXRRGetScreenResources) dlsym (libXrandr, "XRRGetScreenResources");
freeScreenResourcesPtr = (tXRRFreeScreenResources) dlsym (libXrandr, "XRRFreeScreenResources");
getOutputInfoPtr = (tXRRGetOutputInfo) dlsym (libXrandr, "XRRGetOutputInfo");
freeOutputInfoPtr = (tXRRFreeOutputInfo) dlsym (libXrandr, "XRRFreeOutputInfo");
getCrtcInfoPtr = (tXRRGetCrtcInfo) dlsym (libXrandr, "XRRGetCrtcInfo");
freeCrtcInfoPtr = (tXRRFreeCrtcInfo) dlsym (libXrandr, "XRRFreeCrtcInfo");
getOutputPrimaryPtr = (tXRRGetOutputPrimary) dlsym (libXrandr, "XRRGetOutputPrimary");
}
}
}
public:
//==============================================================================
static XRandrWrapper& getInstance()
{
static XRandrWrapper xrandr;
return xrandr;
}
//==============================================================================
XRRScreenResources* getScreenResources (::Display* display, ::Window window)
{
if (getScreenResourcesPtr != nullptr)
return getScreenResourcesPtr (display, window);
return nullptr;
}
XRROutputInfo* getOutputInfo (::Display* display, XRRScreenResources* resources, RROutput output)
{
if (getOutputInfoPtr != nullptr)
return getOutputInfoPtr (display, resources, output);
return nullptr;
}
XRRCrtcInfo* getCrtcInfo (::Display* display, XRRScreenResources* resources, RRCrtc crtc)
{
if (getCrtcInfoPtr != nullptr)
return getCrtcInfoPtr (display, resources, crtc);
return nullptr;
}
RROutput getOutputPrimary (::Display* display, ::Window window)
{
if (getOutputPrimaryPtr != nullptr)
return getOutputPrimaryPtr (display, window);
return 0;
}
//==============================================================================
void freeScreenResources (XRRScreenResources* ptr)
{
if (freeScreenResourcesPtr != nullptr)
freeScreenResourcesPtr (ptr);
}
void freeOutputInfo (XRROutputInfo* ptr)
{
if (freeOutputInfoPtr != nullptr)
freeOutputInfoPtr (ptr);
}
void freeCrtcInfo (XRRCrtcInfo* ptr)
{
if (freeCrtcInfoPtr != nullptr)
freeCrtcInfoPtr (ptr);
}
private:
using tXRRGetScreenResources = XRRScreenResources* (*) (::Display*, ::Window);
using tXRRFreeScreenResources = void (*) (XRRScreenResources*);
using tXRRGetOutputInfo = XRROutputInfo* (*) (::Display*, XRRScreenResources*, RROutput);
using tXRRFreeOutputInfo = void (*) (XRROutputInfo*);
using tXRRGetCrtcInfo = XRRCrtcInfo* (*) (::Display*, XRRScreenResources*, RRCrtc);
using tXRRFreeCrtcInfo = void (*) (XRRCrtcInfo*);
using tXRRGetOutputPrimary = RROutput (*) (::Display*, ::Window);
void* libXrandr = nullptr;
tXRRGetScreenResources getScreenResourcesPtr = nullptr;
tXRRFreeScreenResources freeScreenResourcesPtr = nullptr;
tXRRGetOutputInfo getOutputInfoPtr = nullptr;
tXRRFreeOutputInfo freeOutputInfoPtr = nullptr;
tXRRGetCrtcInfo getCrtcInfoPtr = nullptr;
tXRRFreeCrtcInfo freeCrtcInfoPtr = nullptr;
tXRRGetOutputPrimary getOutputPrimaryPtr = nullptr;
};
#endif
static double getDisplayDPI (::Display* display, int index)
{
double dpiX = (DisplayWidth (display, index) * 25.4) / DisplayWidthMM (display, index);
double dpiY = (DisplayHeight (display, index) * 25.4) / DisplayHeightMM (display, index);
return (dpiX + dpiY) / 2.0;
}
static double getScaleForDisplay (const String& name, double dpi)
{
if (name.isNotEmpty())
{
// Ubuntu and derived distributions now save a per-display scale factor as a configuration
// variable. This can be changed in the Monitor system settings panel.
ChildProcess dconf;
if (File ("/usr/bin/dconf").existsAsFile()
&& dconf.start ("/usr/bin/dconf read /com/ubuntu/user-interface/scale-factor", ChildProcess::wantStdOut))
{
if (dconf.waitForProcessToFinish (200))
{
auto jsonOutput = dconf.readAllProcessOutput().replaceCharacter ('\'', '"');
if (dconf.getExitCode() == 0 && jsonOutput.isNotEmpty())
{
auto jsonVar = JSON::parse (jsonOutput);
if (auto* object = jsonVar.getDynamicObject())
{
auto scaleFactorVar = object->getProperty (name);
if (! scaleFactorVar.isVoid())
{
auto scaleFactor = ((double) scaleFactorVar) / 8.0;
if (scaleFactor > 0.0)
return scaleFactor;
}
}
}
}
}
}
{
// Other gnome based distros now use gsettings for a global scale factor
ChildProcess gsettings;
if (File ("/usr/bin/gsettings").existsAsFile()
&& gsettings.start ("/usr/bin/gsettings get org.gnome.desktop.interface scaling-factor", ChildProcess::wantStdOut))
{
if (gsettings.waitForProcessToFinish (200))
{
auto gsettingsOutput = StringArray::fromTokens (gsettings.readAllProcessOutput(), true);
if (gsettingsOutput.size() >= 2 && gsettingsOutput[1].length() > 0)
{
auto scaleFactor = gsettingsOutput[1].getDoubleValue();
if (scaleFactor > 0.0)
return scaleFactor;
}
}
}
}
// If no scale factor is set by GNOME or Ubuntu then calculate from monitor dpi
// We use the same approach as chromium which simply divides the dpi by 96
// and then rounds the result
return round (dpi / 150.0);
}
//=============================== X11 - Pixmap =================================
namespace PixmapHelpers
{
Pixmap createColourPixmapFromImage (::Display* display, const Image& image)
{
ScopedXLock xlock (display);
auto width = (unsigned int) image.getWidth();
auto height = (unsigned int) image.getHeight();
HeapBlock<uint32> colour (width * height);
int index = 0;
for (int y = 0; y < (int) height; ++y)
for (int x = 0; x < (int) width; ++x)
colour[index++] = image.getPixelAt (x, y).getARGB();
XImage* ximage = XCreateImage (display, CopyFromParent, 24, ZPixmap,
0, reinterpret_cast<char*> (colour.getData()),
width, height, 32, 0);
Pixmap pixmap = XCreatePixmap (display, DefaultRootWindow (display),
width, height, 24);
GC gc = XCreateGC (display, pixmap, 0, 0);
XPutImage (display, pixmap, gc, ximage, 0, 0, 0, 0, width, height);
XFreeGC (display, gc);
return pixmap;
}
Pixmap createMaskPixmapFromImage (::Display* display, const Image& image)
{
ScopedXLock xlock (display);
auto width = (unsigned int) image.getWidth();
auto height = (unsigned int) image.getHeight();
auto stride = (width + 7) >> 3;
HeapBlock<char> mask;
mask.calloc (stride * height);
const bool msbfirst = (BitmapBitOrder (display) == MSBFirst);
for (unsigned int y = 0; y < height; ++y)
{
for (unsigned int x = 0; x < width; ++x)
{
auto bit = (char) (1 << (msbfirst ? (7 - (x & 7)) : (x & 7)));
const unsigned int offset = y * stride + (x >> 3);
if (image.getPixelAt ((int) x, (int) y).getAlpha() >= 128)
mask[offset] |= bit;
}
}
return XCreatePixmapFromBitmapData (display, DefaultRootWindow (display),
mask.getData(), width, height, 1, 0, 1);
}
}
static void* createDraggingHandCursor()
{
static unsigned char dragHandData[] = { 71,73,70,56,57,97,16,0,16,0,145,2,0,0,0,0,255,255,255,0,
0,0,0,0,0,33,249,4,1,0,0,2,0,44,0,0,0,0,16,0, 16,0,0,2,52,148,47,0,200,185,16,130,90,12,74,139,107,84,123,39,
132,117,151,116,132,146,248,60,209,138,98,22,203,114,34,236,37,52,77,217, 247,154,191,119,110,240,193,128,193,95,163,56,60,234,98,135,2,0,59 };
const int dragHandDataSize = 99;
return CustomMouseCursorInfo (ImageFileFormat::loadFrom (dragHandData, dragHandDataSize), { 8, 7 }).create();
}
//==============================================================================
static int numAlwaysOnTopPeers = 0;
bool juce_areThereAnyAlwaysOnTopWindows()
{
return numAlwaysOnTopPeers > 0;
}
//==============================================================================
class LinuxComponentPeer : public ComponentPeer
{
public:
LinuxComponentPeer (Component& comp, int windowStyleFlags, Window parentToAddTo)
: ComponentPeer (comp, windowStyleFlags),
isAlwaysOnTop (comp.isAlwaysOnTop())
{
// it's dangerous to create a window on a thread other than the message thread..
JUCE_ASSERT_MESSAGE_MANAGER_IS_LOCKED
display = XWindowSystem::getInstance()->displayRef();
atoms.reset (new Atoms (display));
dragState.reset (new DragState (display));
repainter.reset (new LinuxRepaintManager (*this, display));
if (isAlwaysOnTop)
++numAlwaysOnTopPeers;
createWindow (parentToAddTo);
setTitle (component.getName());
getNativeRealtimeModifiers = []
{
ScopedXDisplay xDisplay;
if (auto display = xDisplay.display)
{
Window root, child;
int x, y, winx, winy;
unsigned int mask;
int mouseMods = 0;
ScopedXLock xlock (display);
if (XQueryPointer (display, RootWindow (display, DefaultScreen (display)),
&root, &child, &x, &y, &winx, &winy, &mask) != False)
{
if ((mask & Button1Mask) != 0) mouseMods |= ModifierKeys::leftButtonModifier;
if ((mask & Button2Mask) != 0) mouseMods |= ModifierKeys::middleButtonModifier;
if ((mask & Button3Mask) != 0) mouseMods |= ModifierKeys::rightButtonModifier;
}
ModifierKeys::currentModifiers = ModifierKeys::currentModifiers.withoutMouseButtons().withFlags (mouseMods);
}
return ModifierKeys::currentModifiers;
};
}
~LinuxComponentPeer()
{
// it's dangerous to delete a window on a thread other than the message thread..
JUCE_ASSERT_MESSAGE_MANAGER_IS_LOCKED
#if JUCE_X11_SUPPORTS_XEMBED
juce_handleXEmbedEvent (this, nullptr);
#endif
deleteIconPixmaps();
destroyWindow();
windowH = 0;
if (isAlwaysOnTop)
--numAlwaysOnTopPeers;
// delete before display
repainter = nullptr;
display = XWindowSystem::getInstance()->displayUnref();
}
//==============================================================================
void* getNativeHandle() const override
{
return (void*) windowH;
}
static LinuxComponentPeer* getPeerFor (Window windowHandle) noexcept
{
XPointer peer = nullptr;
if (display != nullptr)
{
ScopedXLock xlock (display);
if (! XFindContext (display, (XID) windowHandle, windowHandleXContext, &peer))
if (peer != nullptr && ! ComponentPeer::isValidPeer (reinterpret_cast<LinuxComponentPeer*> (peer)))
peer = nullptr;
}
return reinterpret_cast<LinuxComponentPeer*> (peer);
}
void setVisible (bool shouldBeVisible) override
{
ScopedXLock xlock (display);
if (shouldBeVisible)
XMapWindow (display, windowH);
else
XUnmapWindow (display, windowH);
}
void setTitle (const String& title) override
{
XTextProperty nameProperty;
char* strings[] = { const_cast<char*> (title.toRawUTF8()) };
ScopedXLock xlock (display);
if (XStringListToTextProperty (strings, 1, &nameProperty))
{
XSetWMName (display, windowH, &nameProperty);
XSetWMIconName (display, windowH, &nameProperty);
XFree (nameProperty.value);
}
}
void setBounds (const Rectangle<int>& newBounds, bool isNowFullScreen) override
{
if (fullScreen && ! isNowFullScreen)
{
// When transitioning back from fullscreen, we might need to remove
// the FULLSCREEN window property
Atom fs = Atoms::getIfExists (display, "_NET_WM_STATE_FULLSCREEN");
if (fs != None)
{
Window root = RootWindow (display, DefaultScreen (display));
XClientMessageEvent clientMsg;
clientMsg.display = display;
clientMsg.window = windowH;
clientMsg.type = ClientMessage;
clientMsg.format = 32;
clientMsg.message_type = atoms->windowState;
clientMsg.data.l[0] = 0; // Remove
clientMsg.data.l[1] = (long) fs;
clientMsg.data.l[2] = 0;
clientMsg.data.l[3] = 1; // Normal Source
ScopedXLock xlock (display);
XSendEvent (display, root, false,
SubstructureRedirectMask | SubstructureNotifyMask,
(XEvent*) &clientMsg);
}
}
fullScreen = isNowFullScreen;
if (windowH != 0)
{
bounds = newBounds.withSize (jmax (1, newBounds.getWidth()),
jmax (1, newBounds.getHeight()));
auto& displays = Desktop::getInstance().getDisplays();
auto newScaleFactor = displays.findDisplayForRect (bounds, true).scale;
if (! approximatelyEqual (newScaleFactor, currentScaleFactor))
{
currentScaleFactor = newScaleFactor;
scaleFactorListeners.call ([&] (ScaleFactorListener& l) { l.nativeScaleFactorChanged (currentScaleFactor); });
}
auto physicalBounds = displays.logicalToPhysical (bounds);
WeakReference<Component> deletionChecker (&component);
ScopedXLock xlock (display);
auto* hints = XAllocSizeHints();
hints->flags = USSize | USPosition;
hints->x = physicalBounds.getX();
hints->y = physicalBounds.getY();
hints->width = physicalBounds.getWidth();
hints->height = physicalBounds.getHeight();
if ((getStyleFlags() & windowIsResizable) == 0)
{
hints->min_width = hints->max_width = hints->width;
hints->min_height = hints->max_height = hints->height;
hints->flags |= PMinSize | PMaxSize;
}
XSetWMNormalHints (display, windowH, hints);
XFree (hints);
XMoveResizeWindow (display, windowH,
physicalBounds.getX() - windowBorder.getLeft(),
physicalBounds.getY() - windowBorder.getTop(),
(unsigned int) physicalBounds.getWidth(),
(unsigned int) physicalBounds.getHeight());
if (deletionChecker != nullptr)
{
updateBorderSize();
handleMovedOrResized();
}
}
}
Rectangle<int> getBounds() const override { return bounds; }
Point<float> localToGlobal (Point<float> relativePosition) override
{
return relativePosition + bounds.getPosition().toFloat();
}
Point<float> globalToLocal (Point<float> screenPosition) override
{
return screenPosition - bounds.getPosition().toFloat();
}
void setAlpha (float /* newAlpha */) override
{
//xxx todo!
}
StringArray getAvailableRenderingEngines() override
{
return StringArray ("Software Renderer");
}
void setMinimised (bool shouldBeMinimised) override
{
if (shouldBeMinimised)
{
Window root = RootWindow (display, DefaultScreen (display));
XClientMessageEvent clientMsg;
clientMsg.display = display;
clientMsg.window = windowH;
clientMsg.type = ClientMessage;
clientMsg.format = 32;
clientMsg.message_type = atoms->changeState;
clientMsg.data.l[0] = IconicState;
ScopedXLock xlock (display);
XSendEvent (display, root, false, SubstructureRedirectMask | SubstructureNotifyMask, (XEvent*) &clientMsg);
}
else
{
setVisible (true);
}
}
bool isMinimised() const override
{
ScopedXLock xlock (display);
GetXProperty prop (display, windowH, atoms->state, 0, 64, false, atoms->state);
return prop.success
&& prop.actualType == atoms->state
&& prop.actualFormat == 32
&& prop.numItems > 0
&& ((unsigned long*) prop.data)[0] == IconicState;
}
void setFullScreen (bool shouldBeFullScreen) override
{
auto r = lastNonFullscreenBounds; // (get a copy of this before de-minimising)
setMinimised (false);
if (fullScreen != shouldBeFullScreen)
{
if (shouldBeFullScreen)
r = Desktop::getInstance().getDisplays().getMainDisplay().userArea;
if (! r.isEmpty())
setBounds (ScalingHelpers::scaledScreenPosToUnscaled (component, r), shouldBeFullScreen);
component.repaint();
}
}
bool isFullScreen() const override
{
return fullScreen;
}
bool isChildWindowOf (Window possibleParent) const
{
Window* windowList = nullptr;
uint32 windowListSize = 0;
Window parent, root;
ScopedXLock xlock (display);
if (XQueryTree (display, windowH, &root, &parent, &windowList, &windowListSize) != 0)
{
if (windowList != nullptr)
XFree (windowList);
return parent == possibleParent;
}
return false;
}
bool isParentWindowOf (Window possibleChild) const
{
if (windowH != 0 && possibleChild != 0)
{
if (possibleChild == windowH)
return true;
Window* windowList = nullptr;
uint32 windowListSize = 0;
Window parent, root;
ScopedXLock xlock (display);
if (XQueryTree (display, possibleChild, &root, &parent, &windowList, &windowListSize) != 0)
{
if (windowList != nullptr)
XFree (windowList);
if (parent == root)
return false;
return isParentWindowOf (parent);
}
}
return false;
}
bool isFrontWindow() const
{
Window* windowList = nullptr;
uint32 windowListSize = 0;
bool result = false;
ScopedXLock xlock (display);
Window parent, root = RootWindow (display, DefaultScreen (display));
if (XQueryTree (display, root, &root, &parent, &windowList, &windowListSize) != 0)
{
for (int i = (int) windowListSize; --i >= 0;)
{
if (auto* peer = LinuxComponentPeer::getPeerFor (windowList[i]))
{
result = (peer == this);
break;
}
}
}
if (windowList != nullptr)
XFree (windowList);
return result;
}
bool contains (Point<int> localPos, bool trueIfInAChildWindow) const override
{
if (! bounds.withZeroOrigin().contains (localPos))
return false;
for (int i = Desktop::getInstance().getNumComponents(); --i >= 0;)
{
auto* c = Desktop::getInstance().getComponent (i);
if (c == &component)
break;
if (! c->isVisible())
continue;
if (auto* peer = c->getPeer())
if (peer->contains (localPos + bounds.getPosition() - peer->getBounds().getPosition(), true))
return false;
}
if (trueIfInAChildWindow)
return true;
::Window root, child;
int wx, wy;
unsigned int ww, wh, bw, bitDepth;
ScopedXLock xlock (display);
localPos *= currentScaleFactor;
return XGetGeometry (display, (::Drawable) windowH, &root, &wx, &wy, &ww, &wh, &bw, &bitDepth)
&& XTranslateCoordinates (display, windowH, windowH, localPos.getX(), localPos.getY(), &wx, &wy, &child)
&& child == None;
}
BorderSize<int> getFrameSize() const override
{
return {};
}
bool setAlwaysOnTop (bool /* alwaysOnTop */) override
{
return false;
}
void toFront (bool makeActive) override
{
if (makeActive)
{
setVisible (true);
grabFocus();
}
{
ScopedXLock xlock (display);
XEvent ev;
ev.xclient.type = ClientMessage;
ev.xclient.serial = 0;
ev.xclient.send_event = True;
ev.xclient.message_type = atoms->activeWin;
ev.xclient.window = windowH;
ev.xclient.format = 32;
ev.xclient.data.l[0] = 2;
ev.xclient.data.l[1] = getUserTime();
ev.xclient.data.l[2] = 0;
ev.xclient.data.l[3] = 0;
ev.xclient.data.l[4] = 0;
XSendEvent (display, RootWindow (display, DefaultScreen (display)),
False, SubstructureRedirectMask | SubstructureNotifyMask, &ev);
XSync (display, False);
}
handleBroughtToFront();
}
void toBehind (ComponentPeer* other) override
{
if (auto* otherPeer = dynamic_cast<LinuxComponentPeer*> (other))
{
if (otherPeer->styleFlags & windowIsTemporary)
return;
setMinimised (false);
Window newStack[] = { otherPeer->windowH, windowH };
ScopedXLock xlock (display);
XRestackWindows (display, newStack, 2);
}
else
jassertfalse; // wrong type of window?
}
bool isFocused() const override
{
int revert = 0;
Window focusedWindow = 0;
ScopedXLock xlock (display);
XGetInputFocus (display, &focusedWindow, &revert);
return isParentWindowOf (focusedWindow);
}
Window getFocusWindow()
{
#if JUCE_X11_SUPPORTS_XEMBED
if (Window w = (Window) juce_getCurrentFocusWindow (this))
return w;
#endif
return windowH;
}
void grabFocus() override
{
XWindowAttributes atts;
ScopedXLock xlock (display);
if (windowH != 0
&& XGetWindowAttributes (display, windowH, &atts)
&& atts.map_state == IsViewable
&& ! isFocused())
{
XSetInputFocus (display, getFocusWindow(), RevertToParent, (::Time) getUserTime());
isActiveApplication = true;
}
}
void textInputRequired (Point<int>, TextInputTarget&) override {}
void repaint (const Rectangle<int>& area) override
{
repainter->repaint (area.getIntersection (bounds.withZeroOrigin()));
}
void performAnyPendingRepaintsNow() override
{
repainter->performAnyPendingRepaintsNow();
}
void setIcon (const Image& newIcon) override
{
const int dataSize = newIcon.getWidth() * newIcon.getHeight() + 2;
HeapBlock<unsigned long> data (dataSize);
int index = 0;
data[index++] = (unsigned long) newIcon.getWidth();
data[index++] = (unsigned long) newIcon.getHeight();
for (int y = 0; y < newIcon.getHeight(); ++y)
for (int x = 0; x < newIcon.getWidth(); ++x)
data[index++] = (unsigned long) newIcon.getPixelAt (x, y).getARGB();
ScopedXLock xlock (display);
xchangeProperty (windowH, Atoms::getCreating (display, "_NET_WM_ICON"), XA_CARDINAL, 32, data.getData(), dataSize);
deleteIconPixmaps();
XWMHints* wmHints = XGetWMHints (display, windowH);
if (wmHints == nullptr)
wmHints = XAllocWMHints();
wmHints->flags |= IconPixmapHint | IconMaskHint;
wmHints->icon_pixmap = PixmapHelpers::createColourPixmapFromImage (display, newIcon);
wmHints->icon_mask = PixmapHelpers::createMaskPixmapFromImage (display, newIcon);
XSetWMHints (display, windowH, wmHints);
XFree (wmHints);
XSync (display, False);
}
void deleteIconPixmaps()
{
ScopedXLock xlock (display);
if (auto* wmHints = XGetWMHints (display, windowH))
{
if ((wmHints->flags & IconPixmapHint) != 0)
{
wmHints->flags &= ~IconPixmapHint;
XFreePixmap (display, wmHints->icon_pixmap);
}
if ((wmHints->flags & IconMaskHint) != 0)
{
wmHints->flags &= ~IconMaskHint;
XFreePixmap (display, wmHints->icon_mask);
}
XSetWMHints (display, windowH, wmHints);
XFree (wmHints);
}
}
//==============================================================================
void handleWindowMessage (XEvent& event)
{
switch (event.xany.type)
{
case KeyPressEventType: handleKeyPressEvent (event.xkey); break;
case KeyRelease: handleKeyReleaseEvent (event.xkey); break;
case ButtonPress: handleButtonPressEvent (event.xbutton); break;
case ButtonRelease: handleButtonReleaseEvent (event.xbutton); break;
case MotionNotify: handleMotionNotifyEvent (event.xmotion); break;
case EnterNotify: handleEnterNotifyEvent (event.xcrossing); break;
case LeaveNotify: handleLeaveNotifyEvent (event.xcrossing); break;
case FocusIn: handleFocusInEvent(); break;
case FocusOut: handleFocusOutEvent(); break;
case Expose: handleExposeEvent (event.xexpose); break;
case MappingNotify: handleMappingNotify (event.xmapping); break;
case ClientMessage: handleClientMessageEvent (event.xclient, event); break;
case SelectionNotify: handleDragAndDropSelection (event); break;
case ConfigureNotify: handleConfigureNotifyEvent (event.xconfigure); break;
case ReparentNotify: handleReparentNotifyEvent(); break;
case GravityNotify: handleGravityNotify(); break;
case SelectionClear: handleExternalSelectionClear(); break;
case SelectionRequest: handleExternalSelectionRequest (event); break;
case CirculateNotify:
case CreateNotify:
case DestroyNotify:
// Think we can ignore these
break;
case MapNotify:
mapped = true;
handleBroughtToFront();
break;
case UnmapNotify:
mapped = false;
break;
default:
#if JUCE_USE_XSHM
if (XSHMHelpers::isShmAvailable (display))
{
ScopedXLock xlock (display);
if (event.xany.type == XShmGetEventBase (display))
repainter->notifyPaintCompleted();
}
#endif
break;
}
}
void handleKeyPressEvent (XKeyEvent& keyEvent)
{
auto oldMods = ModifierKeys::currentModifiers;
char utf8 [64] = { 0 };
juce_wchar unicodeChar = 0;
int keyCode = 0;
bool keyDownChange = false;
KeySym sym;
{
ScopedXLock xlock (display);
updateKeyStates ((int) keyEvent.keycode, true);
String oldLocale (::setlocale (LC_ALL, 0));
::setlocale (LC_ALL, "");
XLookupString (&keyEvent, utf8, sizeof (utf8), &sym, 0);
if (oldLocale.isNotEmpty())
::setlocale (LC_ALL, oldLocale.toRawUTF8());
unicodeChar = *CharPointer_UTF8 (utf8);
keyCode = (int) unicodeChar;
if (keyCode < 0x20)
keyCode = (int) XkbKeycodeToKeysym (display, (::KeyCode) keyEvent.keycode, 0, ModifierKeys::currentModifiers.isShiftDown() ? 1 : 0);
keyDownChange = (sym != NoSymbol) && ! updateKeyModifiersFromSym (sym, true);
}
bool keyPressed = false;
if ((sym & 0xff00) == 0xff00 || keyCode == XK_ISO_Left_Tab)
{
switch (sym) // Translate keypad
{
case XK_KP_Add: keyCode = XK_plus; break;
case XK_KP_Subtract: keyCode = XK_hyphen; break;
case XK_KP_Divide: keyCode = XK_slash; break;
case XK_KP_Multiply: keyCode = XK_asterisk; break;
case XK_KP_Enter: keyCode = XK_Return; break;
case XK_KP_Insert: keyCode = XK_Insert; break;
case XK_Delete:
case XK_KP_Delete: keyCode = XK_Delete; break;
case XK_KP_Left: keyCode = XK_Left; break;
case XK_KP_Right: keyCode = XK_Right; break;
case XK_KP_Up: keyCode = XK_Up; break;
case XK_KP_Down: keyCode = XK_Down; break;
case XK_KP_Home: keyCode = XK_Home; break;
case XK_KP_End: keyCode = XK_End; break;
case XK_KP_Page_Down: keyCode = XK_Page_Down; break;
case XK_KP_Page_Up: keyCode = XK_Page_Up; break;
case XK_KP_0: keyCode = XK_0; break;
case XK_KP_1: keyCode = XK_1; break;
case XK_KP_2: keyCode = XK_2; break;
case XK_KP_3: keyCode = XK_3; break;
case XK_KP_4: keyCode = XK_4; break;
case XK_KP_5: keyCode = XK_5; break;
case XK_KP_6: keyCode = XK_6; break;
case XK_KP_7: keyCode = XK_7; break;
case XK_KP_8: keyCode = XK_8; break;
case XK_KP_9: keyCode = XK_9; break;
default: break;
}
switch (keyCode)
{
case XK_Left:
case XK_Right:
case XK_Up:
case XK_Down:
case XK_Page_Up:
case XK_Page_Down:
case XK_End:
case XK_Home:
case XK_Delete:
case XK_Insert:
keyPressed = true;
keyCode = (keyCode & 0xff) | Keys::extendedKeyModifier;
break;
case XK_Tab:
case XK_Return:
case XK_Escape:
case XK_BackSpace:
keyPressed = true;
keyCode &= 0xff;
break;
case XK_ISO_Left_Tab:
keyPressed = true;
keyCode = XK_Tab & 0xff;
break;
default:
if (sym >= XK_F1 && sym <= XK_F35)
{
keyPressed = true;
keyCode = (sym & 0xff) | Keys::extendedKeyModifier;
}
break;
}
}
if (utf8[0] != 0 || ((sym & 0xff00) == 0 && sym >= 8))
keyPressed = true;
if (oldMods != ModifierKeys::currentModifiers)
handleModifierKeysChange();
if (keyDownChange)
handleKeyUpOrDown (true);
if (keyPressed)
handleKeyPress (keyCode, unicodeChar);
}
static bool isKeyReleasePartOfAutoRepeat (const XKeyEvent& keyReleaseEvent)
{
if (XPending (display))
{
XEvent e;
XPeekEvent (display, &e);
// Look for a subsequent key-down event with the same timestamp and keycode
return e.type == KeyPressEventType
&& e.xkey.keycode == keyReleaseEvent.keycode
&& e.xkey.time == keyReleaseEvent.time;
}
return false;
}
void handleKeyReleaseEvent (const XKeyEvent& keyEvent)
{
if (! isKeyReleasePartOfAutoRepeat (keyEvent))
{
updateKeyStates ((int) keyEvent.keycode, false);
KeySym sym;
{
ScopedXLock xlock (display);
sym = XkbKeycodeToKeysym (display, (::KeyCode) keyEvent.keycode, 0, 0);
}
auto oldMods = ModifierKeys::currentModifiers;
const bool keyDownChange = (sym != NoSymbol) && ! updateKeyModifiersFromSym (sym, false);
if (oldMods != ModifierKeys::currentModifiers)
handleModifierKeysChange();
if (keyDownChange)
handleKeyUpOrDown (false);
}
}
template <typename EventType>
Point<float> getMousePos (const EventType& e) noexcept
{
return Point<float> ((float) e.x, (float) e.y) / currentScaleFactor;
}
void handleWheelEvent (const XButtonPressedEvent& buttonPressEvent, float amount)
{
MouseWheelDetails wheel;
wheel.deltaX = 0.0f;
wheel.deltaY = amount;
wheel.isReversed = false;
wheel.isSmooth = false;
wheel.isInertial = false;
handleMouseWheel (MouseInputSource::InputSourceType::mouse, getMousePos (buttonPressEvent),
getEventTime (buttonPressEvent), wheel);
}
void handleButtonPressEvent (const XButtonPressedEvent& buttonPressEvent, int buttonModifierFlag)
{
ModifierKeys::currentModifiers = ModifierKeys::currentModifiers.withFlags (buttonModifierFlag);
toFront (true);
handleMouseEvent (MouseInputSource::InputSourceType::mouse, getMousePos (buttonPressEvent), ModifierKeys::currentModifiers,
MouseInputSource::invalidPressure, MouseInputSource::invalidOrientation, getEventTime (buttonPressEvent), {});
}
void handleButtonPressEvent (const XButtonPressedEvent& buttonPressEvent)
{
updateKeyModifiers ((int) buttonPressEvent.state);
auto mapIndex = (uint32) (buttonPressEvent.button - Button1);
if (mapIndex < (uint32) numElementsInArray (pointerMap))
{
switch (pointerMap[mapIndex])
{
case Keys::WheelUp: handleWheelEvent (buttonPressEvent, 50.0f / 256.0f); break;
case Keys::WheelDown: handleWheelEvent (buttonPressEvent, -50.0f / 256.0f); break;
case Keys::LeftButton: handleButtonPressEvent (buttonPressEvent, ModifierKeys::leftButtonModifier); break;
case Keys::RightButton: handleButtonPressEvent (buttonPressEvent, ModifierKeys::rightButtonModifier); break;
case Keys::MiddleButton: handleButtonPressEvent (buttonPressEvent, ModifierKeys::middleButtonModifier); break;
default: break;
}
}
clearLastMousePos();
}
void handleButtonReleaseEvent (const XButtonReleasedEvent& buttonRelEvent)
{
updateKeyModifiers ((int) buttonRelEvent.state);
if (parentWindow != 0)
updateWindowBounds();
auto mapIndex = (uint32) (buttonRelEvent.button - Button1);
if (mapIndex < (uint32) numElementsInArray (pointerMap))
{
switch (pointerMap[mapIndex])
{
case Keys::LeftButton: ModifierKeys::currentModifiers = ModifierKeys::currentModifiers.withoutFlags (ModifierKeys::leftButtonModifier); break;
case Keys::RightButton: ModifierKeys::currentModifiers = ModifierKeys::currentModifiers.withoutFlags (ModifierKeys::rightButtonModifier); break;
case Keys::MiddleButton: ModifierKeys::currentModifiers = ModifierKeys::currentModifiers.withoutFlags (ModifierKeys::middleButtonModifier); break;
default: break;
}
}
if (dragState->dragging)
handleExternalDragButtonReleaseEvent();
handleMouseEvent (MouseInputSource::InputSourceType::mouse, getMousePos (buttonRelEvent), ModifierKeys::currentModifiers,
MouseInputSource::invalidPressure, MouseInputSource::invalidOrientation, getEventTime (buttonRelEvent));
clearLastMousePos();
}
void handleMotionNotifyEvent (const XPointerMovedEvent& movedEvent)
{
updateKeyModifiers ((int) movedEvent.state);
lastMousePos = Point<int> (movedEvent.x_root, movedEvent.y_root);
if (dragState->dragging)
handleExternalDragMotionNotify();
handleMouseEvent (MouseInputSource::InputSourceType::mouse, getMousePos (movedEvent), ModifierKeys::currentModifiers,
MouseInputSource::invalidPressure, MouseInputSource::invalidOrientation, getEventTime (movedEvent));
}
void handleEnterNotifyEvent (const XEnterWindowEvent& enterEvent)
{
if (parentWindow != 0)
updateWindowBounds();
clearLastMousePos();
if (! ModifierKeys::currentModifiers.isAnyMouseButtonDown())
{
updateKeyModifiers ((int) enterEvent.state);
handleMouseEvent (MouseInputSource::InputSourceType::mouse, getMousePos (enterEvent), ModifierKeys::currentModifiers,
MouseInputSource::invalidPressure, MouseInputSource::invalidOrientation, getEventTime (enterEvent));
}
}
void handleLeaveNotifyEvent (const XLeaveWindowEvent& leaveEvent)
{
// Suppress the normal leave if we've got a pointer grab, or if
// it's a bogus one caused by clicking a mouse button when running
// in a Window manager
if (((! ModifierKeys::currentModifiers.isAnyMouseButtonDown()) && leaveEvent.mode == NotifyNormal)
|| leaveEvent.mode == NotifyUngrab)
{
updateKeyModifiers ((int) leaveEvent.state);
handleMouseEvent (MouseInputSource::InputSourceType::mouse, getMousePos (leaveEvent), ModifierKeys::currentModifiers,
MouseInputSource::invalidPressure, MouseInputSource::invalidOrientation, getEventTime (leaveEvent));
}
}
void handleFocusInEvent()
{
isActiveApplication = true;
if (isFocused() && ! focused)
{
focused = true;
handleFocusGain();
}
}
void handleFocusOutEvent()
{
if (! isFocused() && focused)
{
focused = false;
isActiveApplication = false;
handleFocusLoss();
}
}
void handleExposeEvent (XExposeEvent& exposeEvent)
{
// Batch together all pending expose events
XEvent nextEvent;
ScopedXLock xlock (display);
// if we have opengl contexts then just repaint them all
// regardless if this is really necessary
repaintOpenGLContexts();
if (exposeEvent.window != windowH)
{
Window child;
XTranslateCoordinates (display, exposeEvent.window, windowH,
exposeEvent.x, exposeEvent.y, &exposeEvent.x, &exposeEvent.y,
&child);
}
// exposeEvent is in local window local coordinates so do not convert with
// physicalToScaled, but rather use currentScaleFactor
repaint (Rectangle<int> (exposeEvent.x, exposeEvent.y,
exposeEvent.width, exposeEvent.height) / currentScaleFactor);
while (XEventsQueued (display, QueuedAfterFlush) > 0)
{
XPeekEvent (display, &nextEvent);
if (nextEvent.type != Expose || nextEvent.xany.window != exposeEvent.window)
break;
XNextEvent (display, &nextEvent);
auto& nextExposeEvent = (const XExposeEvent&) nextEvent.xexpose;
repaint (Rectangle<int> (nextExposeEvent.x, nextExposeEvent.y,
nextExposeEvent.width, nextExposeEvent.height) / currentScaleFactor);
}
}
void handleConfigureNotifyEvent (XConfigureEvent& confEvent)
{
updateWindowBounds();
updateBorderSize();
handleMovedOrResized();
// if the native title bar is dragged, need to tell any active menus, etc.
if ((styleFlags & windowHasTitleBar) != 0
&& component.isCurrentlyBlockedByAnotherModalComponent())
{
if (auto* currentModalComp = Component::getCurrentlyModalComponent())
currentModalComp->inputAttemptWhenModal();
}
if (confEvent.window == windowH && confEvent.above != 0 && isFrontWindow())
handleBroughtToFront();
}
void handleReparentNotifyEvent()
{
parentWindow = 0;
Window wRoot = 0;
Window* wChild = nullptr;
unsigned int numChildren;
{
ScopedXLock xlock (display);
XQueryTree (display, windowH, &wRoot, &parentWindow, &wChild, &numChildren);
}
if (parentWindow == windowH || parentWindow == wRoot)
parentWindow = 0;
handleGravityNotify();
}
void handleGravityNotify()
{
updateWindowBounds();
updateBorderSize();
handleMovedOrResized();
}
void handleMappingNotify (XMappingEvent& mappingEvent)
{
if (mappingEvent.request != MappingPointer)
{
// Deal with modifier/keyboard mapping
ScopedXLock xlock (display);
XRefreshKeyboardMapping (&mappingEvent);
updateModifierMappings();
}
}
void handleClientMessageEvent (XClientMessageEvent& clientMsg, XEvent& event)
{
if (clientMsg.message_type == atoms->protocols && clientMsg.format == 32)
{
auto atom = (Atom) clientMsg.data.l[0];
if (atom == atoms->protocolList [Atoms::PING])
{
Window root = RootWindow (display, DefaultScreen (display));
clientMsg.window = root;
XSendEvent (display, root, False, NoEventMask, &event);
XFlush (display);
}
else if (atom == atoms->protocolList [Atoms::TAKE_FOCUS])
{
if ((getStyleFlags() & juce::ComponentPeer::windowIgnoresKeyPresses) == 0)
{
XWindowAttributes atts;
ScopedXLock xlock (display);
if (clientMsg.window != 0
&& XGetWindowAttributes (display, clientMsg.window, &atts))
{
if (atts.map_state == IsViewable)
XSetInputFocus (display,
(clientMsg.window == windowH ? getFocusWindow()
: clientMsg.window),
RevertToParent,
(::Time) clientMsg.data.l[1]);
}
}
}
else if (atom == atoms->protocolList [Atoms::DELETE_WINDOW])
{
handleUserClosingWindow();
}
}
else if (clientMsg.message_type == atoms->XdndEnter)
{
handleDragAndDropEnter (clientMsg);
}
else if (clientMsg.message_type == atoms->XdndLeave)
{
handleDragExit (dragInfo);
resetDragAndDrop();
}
else if (clientMsg.message_type == atoms->XdndPosition)
{
handleDragAndDropPosition (clientMsg);
}
else if (clientMsg.message_type == atoms->XdndDrop)
{
handleDragAndDropDrop (clientMsg);
}
else if (clientMsg.message_type == atoms->XdndStatus)
{
handleExternalDragAndDropStatus (clientMsg);
}
else if (clientMsg.message_type == atoms->XdndFinished)
{
externalResetDragAndDrop();
}
}
bool externalDragTextInit (const String& text, std::function<void()> cb)
{
if (dragState->dragging)
return false;
return externalDragInit (true, text, cb);
}
bool externalDragFileInit (const StringArray& files, bool /*canMoveFiles*/, std::function<void()> cb)
{
if (dragState->dragging)
return false;
StringArray uriList;
for (auto& f : files)
{
if (f.matchesWildcard ("?*://*", false))
uriList.add (f);
else
uriList.add ("file://" + f);
}
return externalDragInit (false, uriList.joinIntoString ("\r\n"), cb);
}
//==============================================================================
void showMouseCursor (Cursor cursor) noexcept
{
ScopedXLock xlock (display);
XDefineCursor (display, windowH, cursor);
}
//==============================================================================
double getPlatformScaleFactor() const noexcept override
{
return currentScaleFactor;
}
//==============================================================================
void addOpenGLRepaintListener (Component* dummy)
{
if (dummy != nullptr)
glRepaintListeners.addIfNotAlreadyThere (dummy);
}
void removeOpenGLRepaintListener (Component* dummy)
{
if (dummy != nullptr)
glRepaintListeners.removeAllInstancesOf (dummy);
}
void repaintOpenGLContexts()
{
for (int i = 0; i < glRepaintListeners.size(); ++i)
if (auto* c = glRepaintListeners [i])
c->handleCommandMessage (0);
}
//==============================================================================
unsigned long createKeyProxy()
{
jassert (keyProxy == 0 && windowH != 0);
if (keyProxy == 0 && windowH != 0)
{
XSetWindowAttributes swa;
swa.event_mask = KeyPressMask | KeyReleaseMask | FocusChangeMask;
keyProxy = XCreateWindow (display, windowH,
-1, -1, 1, 1, 0, 0,
InputOnly, CopyFromParent,
CWEventMask,
&swa);
XMapWindow (display, keyProxy);
XSaveContext (display, (XID) keyProxy, windowHandleXContext, (XPointer) this);
}
return keyProxy;
}
void deleteKeyProxy()
{
jassert (keyProxy != 0);
if (keyProxy != 0)
{
XPointer handlePointer;
if (! XFindContext (display, (XID) keyProxy, windowHandleXContext, &handlePointer))
XDeleteContext (display, (XID) keyProxy, windowHandleXContext);
XDestroyWindow (display, keyProxy);
XSync (display, false);
XEvent event;
while (XCheckWindowEvent (display, keyProxy, getAllEventsMask(), &event) == True)
{}
keyProxy = 0;
}
}
//==============================================================================
bool dontRepaint;
static bool isActiveApplication;
private:
//==============================================================================
class LinuxRepaintManager : public Timer
{
public:
LinuxRepaintManager (LinuxComponentPeer& p, ::Display* d)
: peer (p), display (d)
{
#if JUCE_USE_XSHM
useARGBImagesForRendering = XSHMHelpers::isShmAvailable (display);
if (useARGBImagesForRendering)
{
ScopedXLock xlock (display);
XShmSegmentInfo segmentinfo;
auto testImage = XShmCreateImage (display, DefaultVisual (display, DefaultScreen (display)),
24, ZPixmap, 0, &segmentinfo, 64, 64);
useARGBImagesForRendering = (testImage->bits_per_pixel == 32);
XDestroyImage (testImage);
}
#endif
}
void timerCallback() override
{
#if JUCE_USE_XSHM
if (shmPaintsPending != 0)
return;
#endif
if (! regionsNeedingRepaint.isEmpty())
{
stopTimer();
performAnyPendingRepaintsNow();
}
else if (Time::getApproximateMillisecondCounter() > lastTimeImageUsed + 3000)
{
stopTimer();
image = Image();
}
}
void repaint (Rectangle<int> area)
{
if (! isTimerRunning())
startTimer (repaintTimerPeriod);
regionsNeedingRepaint.add (area * peer.currentScaleFactor);
}
void performAnyPendingRepaintsNow()
{
#if JUCE_USE_XSHM
if (shmPaintsPending != 0)
{
startTimer (repaintTimerPeriod);
return;
}
#endif
auto originalRepaintRegion = regionsNeedingRepaint;
regionsNeedingRepaint.clear();
auto totalArea = originalRepaintRegion.getBounds();
if (! totalArea.isEmpty())
{
if (image.isNull() || image.getWidth() < totalArea.getWidth()
|| image.getHeight() < totalArea.getHeight())
{
#if JUCE_USE_XSHM
image = Image (new XBitmapImage (display, useARGBImagesForRendering ? Image::ARGB
: Image::RGB,
#else
image = Image (new XBitmapImage (display, Image::RGB,
#endif
(totalArea.getWidth() + 31) & ~31,
(totalArea.getHeight() + 31) & ~31,
false, (unsigned int) peer.depth, peer.visual));
}
startTimer (repaintTimerPeriod);
RectangleList<int> adjustedList (originalRepaintRegion);
adjustedList.offsetAll (-totalArea.getX(), -totalArea.getY());
if (peer.depth == 32)
for (auto& i : originalRepaintRegion)
image.clear (i - totalArea.getPosition());
{
std::unique_ptr<LowLevelGraphicsContext> context (peer.getComponent().getLookAndFeel()
.createGraphicsContext (image, -totalArea.getPosition(), adjustedList));
context->addTransform (AffineTransform::scale ((float) peer.currentScaleFactor));
peer.handlePaint (*context);
}
for (auto& i : originalRepaintRegion)
{
auto* xbitmap = static_cast<XBitmapImage*> (image.getPixelData());
#if JUCE_USE_XSHM
if (xbitmap->isUsingXShm())
++shmPaintsPending;
#endif
xbitmap->blitToWindow (peer.windowH,
i.getX(), i.getY(),
(unsigned int) i.getWidth(),
(unsigned int) i.getHeight(),
i.getX() - totalArea.getX(), i.getY() - totalArea.getY());
}
}
lastTimeImageUsed = Time::getApproximateMillisecondCounter();
startTimer (repaintTimerPeriod);
}
#if JUCE_USE_XSHM
void notifyPaintCompleted() noexcept { --shmPaintsPending; }
#endif
private:
enum { repaintTimerPeriod = 1000 / 100 };
LinuxComponentPeer& peer;
Image image;
uint32 lastTimeImageUsed = 0;
RectangleList<int> regionsNeedingRepaint;
::Display* display;
#if JUCE_USE_XSHM
bool useARGBImagesForRendering;
int shmPaintsPending = 0;
#endif
JUCE_DECLARE_NON_COPYABLE (LinuxRepaintManager)
};
std::unique_ptr<Atoms> atoms;
std::unique_ptr<LinuxRepaintManager> repainter;
friend class LinuxRepaintManager;
Window windowH = {}, parentWindow = {}, keyProxy = {};
Rectangle<int> bounds;
Image taskbarImage;
bool fullScreen = false, mapped = false, focused = false;
Visual* visual = {};
int depth = 0;
BorderSize<int> windowBorder;
bool isAlwaysOnTop;
double currentScaleFactor = 1.0;
Array<Component*> glRepaintListeners;
enum { KeyPressEventType = 2 };
static ::Display* display;
struct MotifWmHints
{
unsigned long flags;
unsigned long functions;
unsigned long decorations;
long input_mode;
unsigned long status;
};
static void updateKeyStates (int keycode, bool press) noexcept
{
const int keybyte = keycode >> 3;
const int keybit = (1 << (keycode & 7));
if (press)
Keys::keyStates [keybyte] |= keybit;
else
Keys::keyStates [keybyte] &= ~keybit;
}
static void updateKeyModifiers (int status) noexcept
{
int keyMods = 0;
if ((status & ShiftMask) != 0) keyMods |= ModifierKeys::shiftModifier;
if ((status & ControlMask) != 0) keyMods |= ModifierKeys::ctrlModifier;
if ((status & Keys::AltMask) != 0) keyMods |= ModifierKeys::altModifier;
ModifierKeys::currentModifiers = ModifierKeys::currentModifiers.withOnlyMouseButtons().withFlags (keyMods);
Keys::numLock = ((status & Keys::NumLockMask) != 0);
Keys::capsLock = ((status & LockMask) != 0);
}
static bool updateKeyModifiersFromSym (KeySym sym, bool press) noexcept
{
int modifier = 0;
bool isModifier = true;
switch (sym)
{
case XK_Shift_L:
case XK_Shift_R: modifier = ModifierKeys::shiftModifier; break;
case XK_Control_L:
case XK_Control_R: modifier = ModifierKeys::ctrlModifier; break;
case XK_Alt_L:
case XK_Alt_R: modifier = ModifierKeys::altModifier; break;
case XK_Num_Lock:
if (press)
Keys::numLock = ! Keys::numLock;
break;
case XK_Caps_Lock:
if (press)
Keys::capsLock = ! Keys::capsLock;
break;
case XK_Scroll_Lock:
break;
default:
isModifier = false;
break;
}
ModifierKeys::currentModifiers = press ? ModifierKeys::currentModifiers.withFlags (modifier)
: ModifierKeys::currentModifiers.withoutFlags (modifier);
return isModifier;
}
// Alt and Num lock are not defined by standard X
// modifier constants: check what they're mapped to
static void updateModifierMappings() noexcept
{
ScopedXLock xlock (display);
int altLeftCode = XKeysymToKeycode (display, XK_Alt_L);
int numLockCode = XKeysymToKeycode (display, XK_Num_Lock);
Keys::AltMask = 0;
Keys::NumLockMask = 0;
if (auto* mapping = XGetModifierMapping (display))
{
for (int modifierIdx = 0; modifierIdx < 8; ++modifierIdx)
{
for (int keyIndex = 0; keyIndex < mapping->max_keypermod; ++keyIndex)
{
auto key = mapping->modifiermap[(modifierIdx * mapping->max_keypermod) + keyIndex];
if (key == altLeftCode)
Keys::AltMask = 1 << modifierIdx;
else if (key == numLockCode)
Keys::NumLockMask = 1 << modifierIdx;
}
}
XFreeModifiermap (mapping);
}
}
//==============================================================================
static void xchangeProperty (Window wndH, Atom property, Atom type, int format, const void* data, int numElements)
{
XChangeProperty (display, wndH, property, type, format, PropModeReplace, (const unsigned char*) data, numElements);
}
void removeWindowDecorations (Window wndH)
{
Atom hints = Atoms::getIfExists (display, "_MOTIF_WM_HINTS");
if (hints != None)
{
MotifWmHints motifHints;
zerostruct (motifHints);
motifHints.flags = 2; /* MWM_HINTS_DECORATIONS */
motifHints.decorations = 0;
ScopedXLock xlock (display);
xchangeProperty (wndH, hints, hints, 32, &motifHints, 4);
}
hints = Atoms::getIfExists (display, "_WIN_HINTS");
if (hints != None)
{
long gnomeHints = 0;
ScopedXLock xlock (display);
xchangeProperty (wndH, hints, hints, 32, &gnomeHints, 1);
}
hints = Atoms::getIfExists (display, "KWM_WIN_DECORATION");
if (hints != None)
{
long kwmHints = 2; /*KDE_tinyDecoration*/
ScopedXLock xlock (display);
xchangeProperty (wndH, hints, hints, 32, &kwmHints, 1);
}
hints = Atoms::getIfExists (display, "_KDE_NET_WM_WINDOW_TYPE_OVERRIDE");
if (hints != None)
{
ScopedXLock xlock (display);
xchangeProperty (wndH, atoms->windowType, XA_ATOM, 32, &hints, 1);
}
}
void addWindowButtons (Window wndH)
{
ScopedXLock xlock (display);
Atom hints = Atoms::getIfExists (display, "_MOTIF_WM_HINTS");
if (hints != None)
{
MotifWmHints motifHints;
zerostruct (motifHints);
motifHints.flags = 1 | 2; /* MWM_HINTS_FUNCTIONS | MWM_HINTS_DECORATIONS */
motifHints.decorations = 2 /* MWM_DECOR_BORDER */ | 8 /* MWM_DECOR_TITLE */ | 16; /* MWM_DECOR_MENU */
motifHints.functions = 4 /* MWM_FUNC_MOVE */;
if ((styleFlags & windowHasCloseButton) != 0)
motifHints.functions |= 32; /* MWM_FUNC_CLOSE */
if ((styleFlags & windowHasMinimiseButton) != 0)
{
motifHints.functions |= 8; /* MWM_FUNC_MINIMIZE */
motifHints.decorations |= 0x20; /* MWM_DECOR_MINIMIZE */
}
if ((styleFlags & windowHasMaximiseButton) != 0)
{
motifHints.functions |= 0x10; /* MWM_FUNC_MAXIMIZE */
motifHints.decorations |= 0x40; /* MWM_DECOR_MAXIMIZE */
}
if ((styleFlags & windowIsResizable) != 0)
{
motifHints.functions |= 2; /* MWM_FUNC_RESIZE */
motifHints.decorations |= 0x4; /* MWM_DECOR_RESIZEH */
}
xchangeProperty (wndH, hints, hints, 32, &motifHints, 5);
}
hints = Atoms::getIfExists (display, "_NET_WM_ALLOWED_ACTIONS");
if (hints != None)
{
Atom netHints [6];
int num = 0;
if ((styleFlags & windowIsResizable) != 0)
netHints [num++] = Atoms::getIfExists (display, "_NET_WM_ACTION_RESIZE");
if ((styleFlags & windowHasMaximiseButton) != 0)
netHints [num++] = Atoms::getIfExists (display, "_NET_WM_ACTION_FULLSCREEN");
if ((styleFlags & windowHasMinimiseButton) != 0)
netHints [num++] = Atoms::getIfExists (display, "_NET_WM_ACTION_MINIMIZE");
if ((styleFlags & windowHasCloseButton) != 0)
netHints [num++] = Atoms::getIfExists (display, "_NET_WM_ACTION_CLOSE");
xchangeProperty (wndH, hints, XA_ATOM, 32, &netHints, num);
}
}
void setWindowType()
{
Atom netHints [2];
if ((styleFlags & windowIsTemporary) != 0
|| ((styleFlags & windowHasDropShadow) == 0 && Desktop::canUseSemiTransparentWindows()))
netHints [0] = Atoms::getIfExists (display, "_NET_WM_WINDOW_TYPE_COMBO");
else
netHints [0] = Atoms::getIfExists (display, "_NET_WM_WINDOW_TYPE_NORMAL");
xchangeProperty (windowH, atoms->windowType, XA_ATOM, 32, &netHints, 1);
int numHints = 0;
if ((styleFlags & windowAppearsOnTaskbar) == 0)
netHints [numHints++] = Atoms::getIfExists (display, "_NET_WM_STATE_SKIP_TASKBAR");
if (component.isAlwaysOnTop())
netHints [numHints++] = Atoms::getIfExists (display, "_NET_WM_STATE_ABOVE");
if (numHints > 0)
xchangeProperty (windowH, atoms->windowState, XA_ATOM, 32, &netHints, numHints);
}
void createWindow (Window parentToAddTo)
{
ScopedXLock xlock (display);
resetDragAndDrop();
// Get defaults for various properties
const int screen = DefaultScreen (display);
Window root = RootWindow (display, screen);
parentWindow = parentToAddTo;
// Try to obtain a 32-bit visual or fallback to 24 or 16
visual = Visuals::findVisualFormat (display, (styleFlags & windowIsSemiTransparent) ? 32 : 24, depth);
if (visual == nullptr)
{
Logger::outputDebugString ("ERROR: System doesn't support 32, 24 or 16 bit RGB display.\n");
Process::terminate();
}
// Create and install a colormap suitable fr our visual
Colormap colormap = XCreateColormap (display, root, visual, AllocNone);
XInstallColormap (display, colormap);
// Set up the window attributes
XSetWindowAttributes swa;
swa.border_pixel = 0;
swa.background_pixmap = None;
swa.colormap = colormap;
swa.override_redirect = ((styleFlags & windowIsTemporary) != 0) ? True : False;
swa.event_mask = getAllEventsMask();
windowH = XCreateWindow (display, parentToAddTo != 0 ? parentToAddTo : root,
0, 0, 1, 1,
0, depth, InputOutput, visual,
CWBorderPixel | CWColormap | CWBackPixmap | CWEventMask | CWOverrideRedirect,
&swa);
// Set the window context to identify the window handle object
if (XSaveContext (display, (XID) windowH, windowHandleXContext, (XPointer) this))
{
// Failed
jassertfalse;
Logger::outputDebugString ("Failed to create context information for window.\n");
XDestroyWindow (display, windowH);
windowH = 0;
return;
}
// Set window manager hints
XWMHints* wmHints = XAllocWMHints();
wmHints->flags = InputHint | StateHint;
wmHints->input = True; // Locally active input model
wmHints->initial_state = NormalState;
XSetWMHints (display, windowH, wmHints);
XFree (wmHints);
// Set the window type
setWindowType();
// Define decoration
if ((styleFlags & windowHasTitleBar) == 0)
removeWindowDecorations (windowH);
else
addWindowButtons (windowH);
setTitle (component.getName());
// Associate the PID, allowing to be shut down when something goes wrong
unsigned long pid = (unsigned long) getpid();
xchangeProperty (windowH, atoms->pid, XA_CARDINAL, 32, &pid, 1);
// Set window manager protocols
xchangeProperty (windowH, atoms->protocols, XA_ATOM, 32, atoms->protocolList, 2);
// Set drag and drop flags
xchangeProperty (windowH, atoms->XdndTypeList, XA_ATOM, 32, atoms->allowedMimeTypes, numElementsInArray (atoms->allowedMimeTypes));
xchangeProperty (windowH, atoms->XdndActionList, XA_ATOM, 32, atoms->allowedActions, numElementsInArray (atoms->allowedActions));
xchangeProperty (windowH, atoms->XdndActionDescription, XA_STRING, 8, "", 0);
xchangeProperty (windowH, atoms->XdndAware, XA_ATOM, 32, &atoms->DndVersion, 1);
initialisePointerMap();
updateModifierMappings();
}
void destroyWindow()
{
ScopedXLock xlock (display);
XPointer handlePointer;
if (keyProxy != 0)
deleteKeyProxy();
if (! XFindContext (display, (XID) windowH, windowHandleXContext, &handlePointer))
XDeleteContext (display, (XID) windowH, windowHandleXContext);
XDestroyWindow (display, windowH);
// Wait for it to complete and then remove any events for this
// window from the event queue.
XSync (display, false);
XEvent event;
while (XCheckWindowEvent (display, windowH, getAllEventsMask(), &event) == True)
{}
}
int getAllEventsMask() const noexcept
{
return NoEventMask | KeyPressMask | KeyReleaseMask
| EnterWindowMask | LeaveWindowMask | PointerMotionMask | KeymapStateMask
| ExposureMask | StructureNotifyMask | FocusChangeMask
| ((styleFlags & windowIgnoresMouseClicks) != 0 ? 0 : (ButtonPressMask | ButtonReleaseMask));
}
template <typename EventType>
static int64 getEventTime (const EventType& t)
{
return getEventTime (t.time);
}
static int64 getEventTime (::Time t)
{
static int64 eventTimeOffset = 0x12345678;
auto thisMessageTime = (int64) t;
if (eventTimeOffset == 0x12345678)
eventTimeOffset = Time::currentTimeMillis() - thisMessageTime;
return eventTimeOffset + thisMessageTime;
}
long getUserTime() const
{
GetXProperty prop (display, windowH, atoms->userTime, 0, 65536, false, XA_CARDINAL);
return prop.success ? *(long*) prop.data : 0;
}
void updateBorderSize()
{
if ((styleFlags & windowHasTitleBar) == 0)
{
windowBorder = BorderSize<int> (0);
}
else if (windowBorder.getTopAndBottom() == 0 && windowBorder.getLeftAndRight() == 0)
{
ScopedXLock xlock (display);
Atom hints = Atoms::getIfExists (display, "_NET_FRAME_EXTENTS");
if (hints != None)
{
GetXProperty prop (display, windowH, hints, 0, 4, false, XA_CARDINAL);
if (prop.success && prop.actualFormat == 32)
{
auto* sizes = (const unsigned long*) prop.data;
windowBorder = BorderSize<int> ((int) sizes[2], (int) sizes[0],
(int) sizes[3], (int) sizes[1]);
}
}
}
}
void updateWindowBounds()
{
jassert (windowH != 0);
if (windowH != 0)
{
Window root, child;
int wx = 0, wy = 0;
unsigned int ww = 0, wh = 0, bw, bitDepth;
ScopedXLock xlock (display);
if (XGetGeometry (display, (::Drawable) windowH, &root, &wx, &wy, &ww, &wh, &bw, &bitDepth))
if (! XTranslateCoordinates (display, windowH, root, 0, 0, &wx, &wy, &child))
wx = wy = 0;
Rectangle<int> physicalBounds (wx, wy, (int) ww, (int) wh);
auto& displays = Desktop::getInstance().getDisplays();
auto newScaleFactor = displays.findDisplayForRect (physicalBounds, true).scale;
if (! approximatelyEqual (newScaleFactor, currentScaleFactor))
{
currentScaleFactor = newScaleFactor;
scaleFactorListeners.call ([&] (ScaleFactorListener& l) { l.nativeScaleFactorChanged (currentScaleFactor); });
}
bounds = displays.physicalToLogical (physicalBounds);
}
}
//==============================================================================
struct DragState
{
DragState (::Display* d)
{
if (isText)
allowedTypes.add (Atoms::getCreating (d, "text/plain"));
else
allowedTypes.add (Atoms::getCreating (d, "text/uri-list"));
}
bool isText = false;
bool dragging = false; // currently performing outgoing external dnd as Xdnd source, have grabbed mouse
bool expectingStatus = false; // XdndPosition sent, waiting for XdndStatus
bool canDrop = false; // target window signals it will accept the drop
Window targetWindow = None; // potential drop target
int xdndVersion = -1; // negotiated version with target
Rectangle<int> silentRect;
String textOrFiles;
Array<Atom> allowedTypes;
std::function<void()> completionCallback;
};
//==============================================================================
void resetDragAndDrop()
{
dragInfo.clear();
dragInfo.position = Point<int> (-1, -1);
dragAndDropCurrentMimeType = 0;
dragAndDropSourceWindow = 0;
srcMimeTypeAtomList.clear();
finishAfterDropDataReceived = false;
}
void resetExternalDragState()
{
dragState.reset (new DragState (display));
}
void sendDragAndDropMessage (XClientMessageEvent& msg)
{
msg.type = ClientMessage;
msg.display = display;
msg.window = dragAndDropSourceWindow;
msg.format = 32;
msg.data.l[0] = (long) windowH;
ScopedXLock xlock (display);
XSendEvent (display, dragAndDropSourceWindow, False, 0, (XEvent*) &msg);
}
bool sendExternalDragAndDropMessage (XClientMessageEvent& msg, Window targetWindow)
{
msg.type = ClientMessage;
msg.display = display;
msg.window = targetWindow;
msg.format = 32;
msg.data.l[0] = (long) windowH;
ScopedXLock xlock (display);
return XSendEvent (display, targetWindow, False, 0, (XEvent*) &msg) != 0;
}
void sendExternalDragAndDropDrop (Window targetWindow)
{
XClientMessageEvent msg;
zerostruct (msg);
msg.message_type = atoms->XdndDrop;
msg.data.l[2] = CurrentTime;
sendExternalDragAndDropMessage (msg, targetWindow);
}
void sendExternalDragAndDropEnter (Window targetWindow)
{
XClientMessageEvent msg;
zerostruct (msg);
msg.message_type = atoms->XdndEnter;
msg.data.l[1] = (dragState->xdndVersion << 24);
for (int i = 0; i < 3; ++i)
msg.data.l[i + 2] = (long) dragState->allowedTypes[i];
sendExternalDragAndDropMessage (msg, targetWindow);
}
void sendExternalDragAndDropPosition (Window targetWindow)
{
XClientMessageEvent msg;
zerostruct (msg);
msg.message_type = atoms->XdndPosition;
Point<int> mousePos (Desktop::getInstance().getMousePosition());
if (dragState->silentRect.contains (mousePos)) // we've been asked to keep silent
return;
auto& displays = Desktop::getInstance().getDisplays();
mousePos = displays.logicalToPhysical (mousePos);
msg.data.l[1] = 0;
msg.data.l[2] = (mousePos.x << 16) | mousePos.y;
msg.data.l[3] = CurrentTime;
msg.data.l[4] = (long) atoms->XdndActionCopy; // this is all JUCE currently supports
dragState->expectingStatus = sendExternalDragAndDropMessage (msg, targetWindow);
}
void sendDragAndDropStatus (bool acceptDrop, Atom dropAction)
{
XClientMessageEvent msg;
zerostruct (msg);
msg.message_type = atoms->XdndStatus;
msg.data.l[1] = (acceptDrop ? 1 : 0) | 2; // 2 indicates that we want to receive position messages
msg.data.l[4] = (long) dropAction;
sendDragAndDropMessage (msg);
}
void sendExternalDragAndDropLeave (Window targetWindow)
{
XClientMessageEvent msg;
zerostruct (msg);
msg.message_type = atoms->XdndLeave;
sendExternalDragAndDropMessage (msg, targetWindow);
}
void sendDragAndDropFinish()
{
XClientMessageEvent msg;
zerostruct (msg);
msg.message_type = atoms->XdndFinished;
sendDragAndDropMessage (msg);
}
void handleExternalSelectionClear()
{
if (dragState->dragging)
externalResetDragAndDrop();
}
void handleExternalSelectionRequest (const XEvent& evt)
{
Atom targetType = evt.xselectionrequest.target;
XEvent s;
s.xselection.type = SelectionNotify;
s.xselection.requestor = evt.xselectionrequest.requestor;
s.xselection.selection = evt.xselectionrequest.selection;
s.xselection.target = targetType;
s.xselection.property = None;
s.xselection.time = evt.xselectionrequest.time;
if (dragState->allowedTypes.contains (targetType))
{
s.xselection.property = evt.xselectionrequest.property;
xchangeProperty (evt.xselectionrequest.requestor,
evt.xselectionrequest.property,
targetType, 8,
dragState->textOrFiles.toRawUTF8(),
(int) dragState->textOrFiles.getNumBytesAsUTF8());
}
XSendEvent (display, evt.xselectionrequest.requestor, True, 0, &s);
}
void handleExternalDragAndDropStatus (const XClientMessageEvent& clientMsg)
{
if (dragState->expectingStatus)
{
dragState->expectingStatus = false;
dragState->canDrop = false;
dragState->silentRect = Rectangle<int>();
if ((clientMsg.data.l[1] & 1) != 0
&& ((Atom) clientMsg.data.l[4] == atoms->XdndActionCopy
|| (Atom) clientMsg.data.l[4] == atoms->XdndActionPrivate))
{
if ((clientMsg.data.l[1] & 2) == 0) // target requests silent rectangle
dragState->silentRect.setBounds ((int) clientMsg.data.l[2] >> 16,
(int) clientMsg.data.l[2] & 0xffff,
(int) clientMsg.data.l[3] >> 16,
(int) clientMsg.data.l[3] & 0xffff);
dragState->canDrop = true;
}
}
}
void handleExternalDragButtonReleaseEvent()
{
if (dragState->dragging)
XUngrabPointer (display, CurrentTime);
if (dragState->canDrop)
{
sendExternalDragAndDropDrop (dragState->targetWindow);
}
else
{
sendExternalDragAndDropLeave (dragState->targetWindow);
externalResetDragAndDrop();
}
}
void handleExternalDragMotionNotify()
{
Window targetWindow = externalFindDragTargetWindow (RootWindow (display, DefaultScreen (display)));
if (dragState->targetWindow != targetWindow)
{
if (dragState->targetWindow != None)
sendExternalDragAndDropLeave (dragState->targetWindow);
dragState->canDrop = false;
dragState->silentRect = Rectangle<int>();
if (targetWindow == None)
return;
GetXProperty prop (display, targetWindow, atoms->XdndAware,
0, 2, false, AnyPropertyType);
if (prop.success
&& prop.data != None
&& prop.actualFormat == 32
&& prop.numItems == 1)
{
dragState->xdndVersion = jmin ((int) prop.data[0], (int) atoms->DndVersion);
}
else
{
dragState->xdndVersion = -1;
return;
}
sendExternalDragAndDropEnter (targetWindow);
dragState->targetWindow = targetWindow;
}
if (! dragState->expectingStatus)
sendExternalDragAndDropPosition (targetWindow);
}
void handleDragAndDropPosition (const XClientMessageEvent& clientMsg)
{
if (dragAndDropSourceWindow == 0)
return;
dragAndDropSourceWindow = (::Window) clientMsg.data.l[0];
Point<int> dropPos ((int) clientMsg.data.l[2] >> 16,
(int) clientMsg.data.l[2] & 0xffff);
dropPos -= bounds.getPosition();
Atom targetAction = atoms->XdndActionCopy;
for (int i = numElementsInArray (atoms->allowedActions); --i >= 0;)
{
if ((Atom) clientMsg.data.l[4] == atoms->allowedActions[i])
{
targetAction = atoms->allowedActions[i];
break;
}
}
sendDragAndDropStatus (true, targetAction);
if (dragInfo.position != dropPos)
{
dragInfo.position = dropPos;
if (dragInfo.isEmpty())
updateDraggedFileList (clientMsg);
if (! dragInfo.isEmpty())
handleDragMove (dragInfo);
}
}
void handleDragAndDropDrop (const XClientMessageEvent& clientMsg)
{
if (dragInfo.isEmpty())
{
// no data, transaction finished in handleDragAndDropSelection()
finishAfterDropDataReceived = true;
updateDraggedFileList (clientMsg);
}
else
{
handleDragAndDropDataReceived(); // data was already received
}
}
void handleDragAndDropDataReceived()
{
DragInfo dragInfoCopy (dragInfo);
sendDragAndDropFinish();
resetDragAndDrop();
if (! dragInfoCopy.isEmpty())
handleDragDrop (dragInfoCopy);
}
void handleDragAndDropEnter (const XClientMessageEvent& clientMsg)
{
dragInfo.clear();
srcMimeTypeAtomList.clear();
dragAndDropCurrentMimeType = 0;
auto dndCurrentVersion = static_cast<unsigned long> (clientMsg.data.l[1] & 0xff000000) >> 24;
if (dndCurrentVersion < 3 || dndCurrentVersion > Atoms::DndVersion)
{
dragAndDropSourceWindow = 0;
return;
}
dragAndDropSourceWindow = (::Window) clientMsg.data.l[0];
if ((clientMsg.data.l[1] & 1) != 0)
{
ScopedXLock xlock (display);
GetXProperty prop (display, dragAndDropSourceWindow, atoms->XdndTypeList, 0, 0x8000000L, false, XA_ATOM);
if (prop.success
&& prop.actualType == XA_ATOM
&& prop.actualFormat == 32
&& prop.numItems != 0)
{
auto* types = (const unsigned long*) prop.data;
for (unsigned long i = 0; i < prop.numItems; ++i)
if (types[i] != None)
srcMimeTypeAtomList.add (types[i]);
}
}
if (srcMimeTypeAtomList.isEmpty())
{
for (int i = 2; i < 5; ++i)
if (clientMsg.data.l[i] != None)
srcMimeTypeAtomList.add ((unsigned long) clientMsg.data.l[i]);
if (srcMimeTypeAtomList.isEmpty())
{
dragAndDropSourceWindow = 0;
return;
}
}
for (int i = 0; i < srcMimeTypeAtomList.size() && dragAndDropCurrentMimeType == 0; ++i)
for (int j = 0; j < numElementsInArray (atoms->allowedMimeTypes); ++j)
if (srcMimeTypeAtomList[i] == atoms->allowedMimeTypes[j])
dragAndDropCurrentMimeType = atoms->allowedMimeTypes[j];
handleDragAndDropPosition (clientMsg);
}
void handleDragAndDropSelection (const XEvent& evt)
{
dragInfo.clear();
if (evt.xselection.property != None)
{
StringArray lines;
{
MemoryBlock dropData;
for (;;)
{
GetXProperty prop (display, evt.xany.window, evt.xselection.property,
dropData.getSize() / 4, 65536, false, AnyPropertyType);
if (! prop.success)
break;
dropData.append (prop.data, prop.numItems * (size_t) prop.actualFormat / 8);
if (prop.bytesLeft <= 0)
break;
}
lines.addLines (dropData.toString());
}
if (Atoms::isMimeTypeFile (display, dragAndDropCurrentMimeType))
{
for (int i = 0; i < lines.size(); ++i)
dragInfo.files.add (URL::removeEscapeChars (lines[i].replace ("file://", String(), true)));
dragInfo.files.trim();
dragInfo.files.removeEmptyStrings();
}
else
{
dragInfo.text = lines.joinIntoString ("\n");
}
if (finishAfterDropDataReceived)
handleDragAndDropDataReceived();
}
}
void updateDraggedFileList (const XClientMessageEvent& clientMsg)
{
jassert (dragInfo.isEmpty());
if (dragAndDropSourceWindow != None
&& dragAndDropCurrentMimeType != None)
{
ScopedXLock xlock (display);
XConvertSelection (display,
atoms->XdndSelection,
dragAndDropCurrentMimeType,
Atoms::getCreating (display, "JXSelectionWindowProperty"),
windowH,
(::Time) clientMsg.data.l[2]);
}
}
bool isWindowDnDAware (Window w) const
{
int numProperties = 0;
auto* properties = XListProperties (display, w, &numProperties);
bool dndAwarePropFound = false;
for (int i = 0; i < numProperties; ++i)
if (properties[i] == atoms->XdndAware)
dndAwarePropFound = true;
if (properties != nullptr)
XFree (properties);
return dndAwarePropFound;
}
Window externalFindDragTargetWindow (Window targetWindow)
{
if (targetWindow == None)
return None;
if (isWindowDnDAware (targetWindow))
return targetWindow;
Window child, phonyWin;
int phony;
unsigned int uphony;
XQueryPointer (display, targetWindow, &phonyWin, &child,
&phony, &phony, &phony, &phony, &uphony);
return externalFindDragTargetWindow (child);
}
bool externalDragInit (bool isText, const String& textOrFiles, std::function<void()> cb)
{
ScopedXLock xlock (display);
resetExternalDragState();
dragState->isText = isText;
dragState->textOrFiles = textOrFiles;
dragState->targetWindow = windowH;
dragState->completionCallback = cb;
const int pointerGrabMask = Button1MotionMask | ButtonReleaseMask;
if (XGrabPointer (display, windowH, True, pointerGrabMask,
GrabModeAsync, GrabModeAsync, None, None, CurrentTime) == GrabSuccess)
{
// No other method of changing the pointer seems to work, this call is needed from this very context
XChangeActivePointerGrab (display, pointerGrabMask, (Cursor) createDraggingHandCursor(), CurrentTime);
XSetSelectionOwner (display, atoms->XdndSelection, windowH, CurrentTime);
// save the available types to XdndTypeList
xchangeProperty (windowH, atoms->XdndTypeList, XA_ATOM, 32,
dragState->allowedTypes.getRawDataPointer(),
dragState->allowedTypes.size());
dragState->dragging = true;
handleExternalDragMotionNotify();
return true;
}
return false;
}
void externalResetDragAndDrop()
{
if (dragState->dragging)
{
ScopedXLock xlock (display);
XUngrabPointer (display, CurrentTime);
}
if (dragState->completionCallback != nullptr)
dragState->completionCallback();
resetExternalDragState();
}
std::unique_ptr<DragState> dragState;
DragInfo dragInfo;
Atom dragAndDropCurrentMimeType;
Window dragAndDropSourceWindow;
bool finishAfterDropDataReceived;
Array<Atom> srcMimeTypeAtomList;
int pointerMap[5] = {};
void initialisePointerMap()
{
const int numButtons = XGetPointerMapping (display, 0, 0);
pointerMap[2] = pointerMap[3] = pointerMap[4] = Keys::NoButton;
if (numButtons == 2)
{
pointerMap[0] = Keys::LeftButton;
pointerMap[1] = Keys::RightButton;
}
else if (numButtons >= 3)
{
pointerMap[0] = Keys::LeftButton;
pointerMap[1] = Keys::MiddleButton;
pointerMap[2] = Keys::RightButton;
if (numButtons >= 5)
{
pointerMap[3] = Keys::WheelUp;
pointerMap[4] = Keys::WheelDown;
}
}
}
static Point<int> lastMousePos;
static void clearLastMousePos() noexcept
{
lastMousePos = Point<int> (0x100000, 0x100000);
}
JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (LinuxComponentPeer)
};
bool LinuxComponentPeer::isActiveApplication = false;
Point<int> LinuxComponentPeer::lastMousePos;
::Display* LinuxComponentPeer::display = nullptr;
//==============================================================================
namespace WindowingHelpers
{
static void windowMessageReceive (XEvent& event)
{
if (event.xany.window != None)
{
#if JUCE_X11_SUPPORTS_XEMBED
if (! juce_handleXEmbedEvent (nullptr, &event))
#endif
{
if (auto* peer = LinuxComponentPeer::getPeerFor (event.xany.window))
peer->handleWindowMessage (event);
}
}
else if (event.xany.type == KeymapNotify)
{
auto& keymapEvent = (const XKeymapEvent&) event.xkeymap;
memcpy (Keys::keyStates, keymapEvent.key_vector, 32);
}
}
}
struct WindowingCallbackInitialiser
{
WindowingCallbackInitialiser()
{
dispatchWindowMessage = WindowingHelpers::windowMessageReceive;
}
};
static WindowingCallbackInitialiser windowingInitialiser;
//==============================================================================
JUCE_API bool JUCE_CALLTYPE Process::isForegroundProcess()
{
return LinuxComponentPeer::isActiveApplication;
}
// N/A on Linux as far as I know.
JUCE_API void JUCE_CALLTYPE Process::makeForegroundProcess() {}
JUCE_API void JUCE_CALLTYPE Process::hide() {}
//==============================================================================
void Desktop::setKioskComponent (Component* comp, bool enableOrDisable, bool /* allowMenusAndBars */)
{
if (enableOrDisable)
comp->setBounds (getDisplays().getMainDisplay().totalArea);
}
void Desktop::allowedOrientationsChanged() {}
//==============================================================================
ComponentPeer* Component::createNewPeer (int styleFlags, void* nativeWindowToAttachTo)
{
return new LinuxComponentPeer (*this, styleFlags, (Window) nativeWindowToAttachTo);
}
//==============================================================================
void Displays::findDisplays (float masterScale)
{
ScopedXDisplay xDisplay;
if (auto display = xDisplay.display)
{
#if JUCE_USE_XRANDR
{
int major_opcode, first_event, first_error;
if (XQueryExtension (display, "RANDR", &major_opcode, &first_event, &first_error))
{
auto& xrandr = XRandrWrapper::getInstance();
auto numMonitors = ScreenCount (display);
auto mainDisplay = xrandr.getOutputPrimary (display, RootWindow (display, 0));
for (int i = 0; i < numMonitors; ++i)
{
if (auto* screens = xrandr.getScreenResources (display, RootWindow (display, i)))
{
for (int j = 0; j < screens->noutput; ++j)
{
if (screens->outputs[j])
{
// Xrandr on the raspberry pi fails to determine the main display (mainDisplay == 0)!
// Detect this edge case and make the first found display the main display
if (! mainDisplay)
mainDisplay = screens->outputs[j];
if (auto* output = xrandr.getOutputInfo (display, screens, screens->outputs[j]))
{
if (output->crtc)
{
if (auto* crtc = xrandr.getCrtcInfo (display, screens, output->crtc))
{
Display d;
d.totalArea = Rectangle<int> (crtc->x, crtc->y,
(int) crtc->width, (int) crtc->height);
d.isMain = (mainDisplay == screens->outputs[j]) && (i == 0);
d.dpi = getDisplayDPI (display, 0);
// The raspberry pi returns a zero sized display, so we need to guard for divide-by-zero
if (output->mm_width > 0 && output->mm_height > 0)
d.dpi = ((static_cast<double> (crtc->width) * 25.4 * 0.5) / static_cast<double> (output->mm_width))
+ ((static_cast<double> (crtc->height) * 25.4 * 0.5) / static_cast<double> (output->mm_height));
double scale = getScaleForDisplay (output->name, d.dpi);
scale = (scale <= 0.1 ? 1.0 : scale);
d.scale = masterScale * scale;
if (d.isMain)
displays.insert (0, d);
else
displays.add (d);
xrandr.freeCrtcInfo (crtc);
}
}
xrandr.freeOutputInfo (output);
}
}
}
xrandr.freeScreenResources (screens);
}
}
}
}
if (displays.isEmpty())
#endif
#if JUCE_USE_XINERAMA
{
auto screens = XineramaQueryDisplays (display);
int numMonitors = screens.size();
for (int index = 0; index < numMonitors; ++index)
{
for (int j = numMonitors; --j >= 0;)
{
if (screens[j].screen_number == index)
{
Display d;
d.totalArea = Rectangle<int> (screens[j].x_org,
screens[j].y_org,
screens[j].width,
screens[j].height);
d.isMain = (index == 0);
d.scale = masterScale;
d.dpi = getDisplayDPI (display, 0); // (all screens share the same DPI)
displays.add (d);
}
}
}
}
if (displays.isEmpty())
#endif
{
Atom hints = Atoms::getIfExists (display, "_NET_WORKAREA");
if (hints != None)
{
auto numMonitors = ScreenCount (display);
for (int i = 0; i < numMonitors; ++i)
{
GetXProperty prop (display, RootWindow (display, i), hints, 0, 4, false, XA_CARDINAL);
if (prop.success && prop.actualType == XA_CARDINAL && prop.actualFormat == 32 && prop.numItems == 4)
{
auto position = (const long*) prop.data;
Display d;
d.totalArea = Rectangle<int> ((int) position[0], (int) position[1],
(int) position[2], (int) position[3]);
d.isMain = displays.isEmpty();
d.scale = masterScale;
d.dpi = getDisplayDPI (display, i);
displays.add (d);
}
}
}
if (displays.isEmpty())
{
Display d;
d.totalArea = Rectangle<int> (DisplayWidth (display, DefaultScreen (display)),
DisplayHeight (display, DefaultScreen (display)));
d.isMain = true;
d.scale = masterScale;
d.dpi = getDisplayDPI (display, 0);
displays.add (d);
}
}
for (auto& d : displays)
d.userArea = d.totalArea; // JUCE currently does not support requesting the user area on Linux
updateToLogical();
}
}
//==============================================================================
bool MouseInputSource::SourceList::addSource()
{
if (sources.isEmpty())
{
addSource (0, MouseInputSource::InputSourceType::mouse);
return true;
}
return false;
}
bool MouseInputSource::SourceList::canUseTouch()
{
return false;
}
bool Desktop::canUseSemiTransparentWindows() noexcept
{
#if JUCE_USE_XRENDER
auto display = XWindowSystem::getInstance()->displayRef();
if (XRender::hasCompositingWindowManager (display))
{
int matchedDepth = 0, desiredDepth = 32;
return Visuals::findVisualFormat (display, desiredDepth, matchedDepth) != 0
&& matchedDepth == desiredDepth;
}
#endif
return false;
}
Point<float> MouseInputSource::getCurrentRawMousePosition()
{
ScopedXDisplay xDisplay;
auto display = xDisplay.display;
if (display == nullptr)
return {};
Window root, child;
int x, y, winx, winy;
unsigned int mask;
ScopedXLock xlock (display);
if (XQueryPointer (display,
RootWindow (display, DefaultScreen (display)),
&root, &child,
&x, &y, &winx, &winy, &mask) == False)
{
// Pointer not on the default screen
x = y = -1;
}
return Desktop::getInstance().getDisplays().physicalToLogical (Point<float> ((float) x, (float) y));
}
void MouseInputSource::setRawMousePosition (Point<float> newPosition)
{
ScopedXDisplay xDisplay;
if (auto display = xDisplay.display)
{
ScopedXLock xlock (display);
Window root = RootWindow (display, DefaultScreen (display));
newPosition = Desktop::getInstance().getDisplays().logicalToPhysical (newPosition);
XWarpPointer (display, None, root, 0, 0, 0, 0, roundToInt (newPosition.getX()), roundToInt (newPosition.getY()));
}
}
double Desktop::getDefaultMasterScale()
{
return 1.0;
}
Desktop::DisplayOrientation Desktop::getCurrentOrientation() const
{
return upright;
}
//==============================================================================
static bool screenSaverAllowed = true;
void Desktop::setScreenSaverEnabled (bool isEnabled)
{
if (screenSaverAllowed != isEnabled)
{
screenSaverAllowed = isEnabled;
ScopedXDisplay xDisplay;
if (auto display = xDisplay.display)
{
typedef void (*tXScreenSaverSuspend) (Display*, Bool);
static tXScreenSaverSuspend xScreenSaverSuspend = nullptr;
if (xScreenSaverSuspend == nullptr)
if (void* h = dlopen ("libXss.so.1", RTLD_GLOBAL | RTLD_NOW))
xScreenSaverSuspend = (tXScreenSaverSuspend) dlsym (h, "XScreenSaverSuspend");
ScopedXLock xlock (display);
if (xScreenSaverSuspend != nullptr)
xScreenSaverSuspend (display, ! isEnabled);
}
}
}
bool Desktop::isScreenSaverEnabled()
{
return screenSaverAllowed;
}
//==============================================================================
Image juce_createIconForFile (const File& /* file */)
{
return {};
}
//==============================================================================
void LookAndFeel::playAlertSound()
{
std::cout << "\a" << std::flush;
}
//==============================================================================
Rectangle<int> juce_LinuxScaledToPhysicalBounds (ComponentPeer* peer, Rectangle<int> bounds)
{
if (auto* linuxPeer = dynamic_cast<LinuxComponentPeer*> (peer))
bounds *= linuxPeer->getPlatformScaleFactor();
return bounds;
}
void juce_LinuxAddRepaintListener (ComponentPeer* peer, Component* dummy)
{
if (auto* linuxPeer = dynamic_cast<LinuxComponentPeer*> (peer))
linuxPeer->addOpenGLRepaintListener (dummy);
}
void juce_LinuxRemoveRepaintListener (ComponentPeer* peer, Component* dummy)
{
if (auto* linuxPeer = dynamic_cast<LinuxComponentPeer*> (peer))
linuxPeer->removeOpenGLRepaintListener (dummy);
}
unsigned long juce_createKeyProxyWindow (ComponentPeer* peer)
{
if (auto* linuxPeer = dynamic_cast<LinuxComponentPeer*> (peer))
return linuxPeer->createKeyProxy();
return 0;
}
void juce_deleteKeyProxyWindow (ComponentPeer* peer)
{
if (auto* linuxPeer = dynamic_cast<LinuxComponentPeer*> (peer))
linuxPeer->deleteKeyProxy();
}
//==============================================================================
#if JUCE_MODAL_LOOPS_PERMITTED
void JUCE_CALLTYPE NativeMessageBox::showMessageBox (AlertWindow::AlertIconType iconType,
const String& title, const String& message,
Component* /* associatedComponent */)
{
AlertWindow::showMessageBox (iconType, title, message);
}
#endif
void JUCE_CALLTYPE NativeMessageBox::showMessageBoxAsync (AlertWindow::AlertIconType iconType,
const String& title, const String& message,
Component* associatedComponent,
ModalComponentManager::Callback* callback)
{
AlertWindow::showMessageBoxAsync (iconType, title, message, String(), associatedComponent, callback);
}
bool JUCE_CALLTYPE NativeMessageBox::showOkCancelBox (AlertWindow::AlertIconType iconType,
const String& title, const String& message,
Component* associatedComponent,
ModalComponentManager::Callback* callback)
{
return AlertWindow::showOkCancelBox (iconType, title, message, String(), String(),
associatedComponent, callback);
}
int JUCE_CALLTYPE NativeMessageBox::showYesNoCancelBox (AlertWindow::AlertIconType iconType,
const String& title, const String& message,
Component* associatedComponent,
ModalComponentManager::Callback* callback)
{
return AlertWindow::showYesNoCancelBox (iconType, title, message,
String(), String(), String(),
associatedComponent, callback);
}
int JUCE_CALLTYPE NativeMessageBox::showYesNoBox (AlertWindow::AlertIconType iconType,
const String& title, const String& message,
Component* associatedComponent,
ModalComponentManager::Callback* callback)
{
return AlertWindow::showOkCancelBox (iconType, title, message, TRANS ("Yes"), TRANS ("No"),
associatedComponent, callback);
}
//============================== X11 - MouseCursor =============================
void* CustomMouseCursorInfo::create() const
{
ScopedXDisplay xDisplay;
auto display = xDisplay.display;
if (display == nullptr)
return nullptr;
ScopedXLock xlock (display);
auto imageW = (unsigned int) image.getWidth();
auto imageH = (unsigned int) image.getHeight();
int hotspotX = hotspot.x;
int hotspotY = hotspot.y;
#if JUCE_USE_XCURSOR
{
using tXcursorSupportsARGB = XcursorBool (*) (Display*);
using tXcursorImageCreate = XcursorImage* (*) (int, int);
using tXcursorImageDestroy = void (*) (XcursorImage*);
using tXcursorImageLoadCursor = Cursor (*) (Display*, const XcursorImage*);
static tXcursorSupportsARGB xcursorSupportsARGB = nullptr;
static tXcursorImageCreate xcursorImageCreate = nullptr;
static tXcursorImageDestroy xcursorImageDestroy = nullptr;
static tXcursorImageLoadCursor xcursorImageLoadCursor = nullptr;
static bool hasBeenLoaded = false;
if (! hasBeenLoaded)
{
hasBeenLoaded = true;
if (void* h = dlopen ("libXcursor.so.1", RTLD_GLOBAL | RTLD_NOW))
{
xcursorSupportsARGB = (tXcursorSupportsARGB) dlsym (h, "XcursorSupportsARGB");
xcursorImageCreate = (tXcursorImageCreate) dlsym (h, "XcursorImageCreate");
xcursorImageLoadCursor = (tXcursorImageLoadCursor) dlsym (h, "XcursorImageLoadCursor");
xcursorImageDestroy = (tXcursorImageDestroy) dlsym (h, "XcursorImageDestroy");
if (xcursorSupportsARGB == nullptr || xcursorImageCreate == nullptr
|| xcursorImageLoadCursor == nullptr || xcursorImageDestroy == nullptr
|| ! xcursorSupportsARGB (display))
xcursorSupportsARGB = nullptr;
}
}
if (xcursorSupportsARGB != nullptr)
{
if (XcursorImage* xcImage = xcursorImageCreate ((int) imageW, (int) imageH))
{
xcImage->xhot = (XcursorDim) hotspotX;
xcImage->yhot = (XcursorDim) hotspotY;
XcursorPixel* dest = xcImage->pixels;
for (int y = 0; y < (int) imageH; ++y)
for (int x = 0; x < (int) imageW; ++x)
*dest++ = image.getPixelAt (x, y).getARGB();
void* result = (void*) xcursorImageLoadCursor (display, xcImage);
xcursorImageDestroy (xcImage);
if (result != nullptr)
return result;
}
}
}
#endif
Window root = RootWindow (display, DefaultScreen (display));
unsigned int cursorW, cursorH;
if (! XQueryBestCursor (display, root, imageW, imageH, &cursorW, &cursorH))
return nullptr;
Image im (Image::ARGB, (int) cursorW, (int) cursorH, true);
{
Graphics g (im);
if (imageW > cursorW || imageH > cursorH)
{
hotspotX = (hotspotX * (int) cursorW) / (int) imageW;
hotspotY = (hotspotY * (int) cursorH) / (int) imageH;
g.drawImage (image, Rectangle<float> ((float) imageW, (float) imageH),
RectanglePlacement::xLeft | RectanglePlacement::yTop | RectanglePlacement::onlyReduceInSize);
}
else
{
g.drawImageAt (image, 0, 0);
}
}
const unsigned int stride = (cursorW + 7) >> 3;
HeapBlock<char> maskPlane, sourcePlane;
maskPlane.calloc (stride * cursorH);
sourcePlane.calloc (stride * cursorH);
const bool msbfirst = (BitmapBitOrder (display) == MSBFirst);
for (int y = (int) cursorH; --y >= 0;)
{
for (int x = (int) cursorW; --x >= 0;)
{
auto mask = (char) (1 << (msbfirst ? (7 - (x & 7)) : (x & 7)));
auto offset = (unsigned int) y * stride + ((unsigned int) x >> 3);
auto c = im.getPixelAt (x, y);
if (c.getAlpha() >= 128) maskPlane[offset] |= mask;
if (c.getBrightness() >= 0.5f) sourcePlane[offset] |= mask;
}
}
Pixmap sourcePixmap = XCreatePixmapFromBitmapData (display, root, sourcePlane.getData(), cursorW, cursorH, 0xffff, 0, 1);
Pixmap maskPixmap = XCreatePixmapFromBitmapData (display, root, maskPlane.getData(), cursorW, cursorH, 0xffff, 0, 1);
XColor white, black;
black.red = black.green = black.blue = 0;
white.red = white.green = white.blue = 0xffff;
void* result = (void*) XCreatePixmapCursor (display, sourcePixmap, maskPixmap, &white, &black,
(unsigned int) hotspotX, (unsigned int) hotspotY);
XFreePixmap (display, sourcePixmap);
XFreePixmap (display, maskPixmap);
return result;
}
void MouseCursor::deleteMouseCursor (void* cursorHandle, bool)
{
if (cursorHandle != nullptr)
{
ScopedXDisplay xDisplay;
if (auto display = xDisplay.display)
{
ScopedXLock xlock (display);
XFreeCursor (display, (Cursor) cursorHandle);
}
}
}
void* MouseCursor::createStandardMouseCursor (MouseCursor::StandardCursorType type)
{
ScopedXDisplay xDisplay;
auto display = xDisplay.display;
if (display == nullptr)
return None;
unsigned int shape;
switch (type)
{
case NormalCursor:
case ParentCursor: return None; // Use parent cursor
case NoCursor: return CustomMouseCursorInfo (Image (Image::ARGB, 16, 16, true), {}).create();
case WaitCursor: shape = XC_watch; break;
case IBeamCursor: shape = XC_xterm; break;
case PointingHandCursor: shape = XC_hand2; break;
case LeftRightResizeCursor: shape = XC_sb_h_double_arrow; break;
case UpDownResizeCursor: shape = XC_sb_v_double_arrow; break;
case UpDownLeftRightResizeCursor: shape = XC_fleur; break;
case TopEdgeResizeCursor: shape = XC_top_side; break;
case BottomEdgeResizeCursor: shape = XC_bottom_side; break;
case LeftEdgeResizeCursor: shape = XC_left_side; break;
case RightEdgeResizeCursor: shape = XC_right_side; break;
case TopLeftCornerResizeCursor: shape = XC_top_left_corner; break;
case TopRightCornerResizeCursor: shape = XC_top_right_corner; break;
case BottomLeftCornerResizeCursor: shape = XC_bottom_left_corner; break;
case BottomRightCornerResizeCursor: shape = XC_bottom_right_corner; break;
case CrosshairCursor: shape = XC_crosshair; break;
case DraggingHandCursor: return createDraggingHandCursor();
case CopyingCursor:
{
static unsigned char copyCursorData[] = { 71,73,70,56,57,97,21,0,21,0,145,0,0,0,0,0,255,255,255,0,
128,128,255,255,255,33,249,4,1,0,0,3,0,44,0,0,0,0,21,0, 21,0,0,2,72,4,134,169,171,16,199,98,11,79,90,71,161,93,56,111,
78,133,218,215,137,31,82,154,100,200,86,91,202,142,12,108,212,87,235,174, 15,54,214,126,237,226,37,96,59,141,16,37,18,201,142,157,230,204,51,112,
252,114,147,74,83,5,50,68,147,208,217,16,71,149,252,124,5,0,59,0,0 };
const int copyCursorSize = 119;
return CustomMouseCursorInfo (ImageFileFormat::loadFrom (copyCursorData, copyCursorSize), { 1, 3 }).create();
}
default:
jassertfalse;
return None;
}
ScopedXLock xlock (display);
return (void*) XCreateFontCursor (display, shape);
}
void MouseCursor::showInWindow (ComponentPeer* peer) const
{
if (auto* lp = dynamic_cast<LinuxComponentPeer*> (peer))
lp->showMouseCursor ((Cursor) getHandle());
}
//=================================== X11 - DND ================================
static LinuxComponentPeer* getPeerForDragEvent (Component* sourceComp)
{
if (sourceComp == nullptr)
if (auto* draggingSource = Desktop::getInstance().getDraggingMouseSource(0))
sourceComp = draggingSource->getComponentUnderMouse();
if (sourceComp != nullptr)
if (auto* lp = dynamic_cast<LinuxComponentPeer*> (sourceComp->getPeer()))
return lp;
jassertfalse; // This method must be called in response to a component's mouseDown or mouseDrag event!
return nullptr;
}
bool DragAndDropContainer::performExternalDragDropOfFiles (const StringArray& files, bool canMoveFiles,
Component* sourceComp, std::function<void()> callback)
{
if (files.isEmpty())
return false;
if (auto* lp = getPeerForDragEvent (sourceComp))
return lp->externalDragFileInit (files, canMoveFiles, callback);
// This method must be called in response to a component's mouseDown or mouseDrag event!
jassertfalse;
return false;
}
bool DragAndDropContainer::performExternalDragDropOfText (const String& text, Component* sourceComp,
std::function<void()> callback)
{
if (text.isEmpty())
return false;
if (auto* lp = getPeerForDragEvent (sourceComp))
return lp->externalDragTextInit (text, callback);
// This method must be called in response to a component's mouseDown or mouseDrag event!
jassertfalse;
return false;
}
} // namespace juce