338 lines
13 KiB
C++
338 lines
13 KiB
C++
// Scintilla source code edit control
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// ScintillaGTK.h - GTK+ specific subclass of ScintillaBase
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// Copyright 1998-2004 by Neil Hodgson <neilh@scintilla.org>
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// The License.txt file describes the conditions under which this software may be distributed.
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#ifndef SCINTILLAGTK_H
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#define SCINTILLAGTK_H
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namespace Scintilla::Internal {
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class ScintillaGTKAccessible;
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#define OBJECT_CLASS GObjectClass
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struct FontOptions {
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cairo_antialias_t antialias {};
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cairo_subpixel_order_t order {};
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cairo_hint_style_t hint {};
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FontOptions() noexcept = default;
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explicit FontOptions(GtkWidget *widget) noexcept;
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bool operator==(const FontOptions &other) const noexcept;
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};
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class ScintillaGTK : public ScintillaBase {
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friend class ScintillaGTKAccessible;
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_ScintillaObject *sci;
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Window wText;
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Window scrollbarv;
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Window scrollbarh;
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GtkAdjustment *adjustmentv;
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GtkAdjustment *adjustmenth;
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int verticalScrollBarWidth;
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int horizontalScrollBarHeight;
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PRectangle rectangleClient;
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SelectionText primary;
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SelectionPosition posPrimary;
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UniqueGdkEvent evbtn;
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guint buttonMouse;
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bool capturedMouse;
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bool dragWasDropped;
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int lastKey;
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int rectangularSelectionModifier;
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GtkWidgetClass *parentClass;
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static inline GdkAtom atomUTF8 {};
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static inline GdkAtom atomUTF8Mime {};
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static inline GdkAtom atomString {};
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static inline GdkAtom atomUriList {};
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static inline GdkAtom atomDROPFILES_DND {};
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GdkAtom atomSought;
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size_t inClearSelection = 0;
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#if PLAT_GTK_WIN32
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CLIPFORMAT cfColumnSelect;
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#endif
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bool preeditInitialized;
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Window wPreedit;
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Window wPreeditDraw;
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UniqueIMContext im_context;
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GUnicodeScript lastNonCommonScript;
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GtkSettings *settings;
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gulong settingsHandlerId;
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// Wheel mouse support
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unsigned int linesPerScroll;
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gint64 lastWheelMouseTime;
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gint lastWheelMouseDirection;
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gint wheelMouseIntensity;
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gdouble smoothScrollY;
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gdouble smoothScrollX;
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#if GTK_CHECK_VERSION(3,0,0)
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cairo_rectangle_list_t *rgnUpdate;
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#else
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GdkRegion *rgnUpdate;
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#endif
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bool repaintFullWindow;
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guint styleIdleID;
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guint scrollBarIdleID = 0;
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FontOptions fontOptionsPrevious;
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int accessibilityEnabled;
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AtkObject *accessible;
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public:
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explicit ScintillaGTK(_ScintillaObject *sci_);
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// Deleted so ScintillaGTK objects can not be copied.
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ScintillaGTK(const ScintillaGTK &) = delete;
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ScintillaGTK(ScintillaGTK &&) = delete;
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ScintillaGTK &operator=(const ScintillaGTK &) = delete;
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ScintillaGTK &operator=(ScintillaGTK &&) = delete;
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~ScintillaGTK() override;
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static ScintillaGTK *FromWidget(GtkWidget *widget) noexcept;
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static void ClassInit(OBJECT_CLASS *object_class, GtkWidgetClass *widget_class, GtkContainerClass *container_class);
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private:
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void Init();
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void Finalise() override;
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bool AbandonPaint() override;
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void DisplayCursor(Window::Cursor c) override;
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bool DragThreshold(Point ptStart, Point ptNow) override;
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void StartDrag() override;
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Sci::Position TargetAsUTF8(char *text) const;
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Sci::Position EncodedFromUTF8(const char *utf8, char *encoded) const;
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bool ValidCodePage(int codePage) const override;
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std::string UTF8FromEncoded(std::string_view encoded) const override;
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std::string EncodedFromUTF8(std::string_view utf8) const override;
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public: // Public for scintilla_send_message
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sptr_t WndProc(Scintilla::Message iMessage, Scintilla::uptr_t wParam, Scintilla::sptr_t lParam) override;
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private:
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sptr_t DefWndProc(Scintilla::Message iMessage, Scintilla::uptr_t wParam, Scintilla::sptr_t lParam) override;
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struct TimeThunk {
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TickReason reason;
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ScintillaGTK *scintilla;
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guint timer;
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TimeThunk() noexcept : reason(TickReason::caret), scintilla(nullptr), timer(0) {}
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};
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TimeThunk timers[static_cast<size_t>(TickReason::dwell)+1];
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bool FineTickerRunning(TickReason reason) override;
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void FineTickerStart(TickReason reason, int millis, int tolerance) override;
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void FineTickerCancel(TickReason reason) override;
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bool SetIdle(bool on) override;
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void SetMouseCapture(bool on) override;
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bool HaveMouseCapture() override;
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bool PaintContains(PRectangle rc) override;
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void FullPaint();
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void SetClientRectangle();
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PRectangle GetClientRectangle() const override;
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void ScrollText(Sci::Line linesToMove) override;
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void SetVerticalScrollPos() override;
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void SetHorizontalScrollPos() override;
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bool ModifyScrollBars(Sci::Line nMax, Sci::Line nPage) override;
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void ReconfigureScrollBars() override;
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void SetScrollBars() override;
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void NotifyChange() override;
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void NotifyFocus(bool focus) override;
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void NotifyParent(Scintilla::NotificationData scn) override;
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void NotifyKey(Scintilla::Keys key, Scintilla::KeyMod modifiers);
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void NotifyURIDropped(const char *list);
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const char *CharacterSetID() const;
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std::unique_ptr<CaseFolder> CaseFolderForEncoding() override;
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std::string CaseMapString(const std::string &s, CaseMapping caseMapping) override;
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int KeyDefault(Scintilla::Keys key, Scintilla::KeyMod modifiers) override;
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void CopyToClipboard(const SelectionText &selectedText) override;
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void Copy() override;
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void RequestSelection(GdkAtom atomSelection);
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void Paste() override;
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void CreateCallTipWindow(PRectangle rc) override;
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void AddToPopUp(const char *label, int cmd = 0, bool enabled = true) override;
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bool OwnPrimarySelection();
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void ClaimSelection() override;
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static bool IsStringAtom(GdkAtom type);
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void GetGtkSelectionText(GtkSelectionData *selectionData, SelectionText &selText);
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void InsertSelection(GtkClipboard *clipBoard, GtkSelectionData *selectionData);
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public: // Public for SelectionReceiver
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GObject *MainObject() const noexcept;
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void ReceivedClipboard(GtkClipboard *clipBoard, GtkSelectionData *selection_data) noexcept;
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private:
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void ReceivedSelection(GtkSelectionData *selection_data);
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void ReceivedDrop(GtkSelectionData *selection_data);
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static void GetSelection(GtkSelectionData *selection_data, guint info, SelectionText *text);
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void StoreOnClipboard(SelectionText *clipText);
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static void ClipboardGetSelection(GtkClipboard *clip, GtkSelectionData *selection_data, guint info, void *data);
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static void ClipboardClearSelection(GtkClipboard *clip, void *data);
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void ClearPrimarySelection();
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void PrimaryGetSelectionThis(GtkClipboard *clip, GtkSelectionData *selection_data, guint info);
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static void PrimaryGetSelection(GtkClipboard *clip, GtkSelectionData *selection_data, guint info, gpointer pSci);
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void PrimaryClearSelectionThis(GtkClipboard *clip);
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static void PrimaryClearSelection(GtkClipboard *clip, gpointer pSci);
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void UnclaimSelection(GdkEventSelection *selection_event);
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void Resize(int width, int height);
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// Callback functions
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void RealizeThis(GtkWidget *widget);
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static void Realize(GtkWidget *widget);
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void UnRealizeThis(GtkWidget *widget);
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static void UnRealize(GtkWidget *widget);
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void MapThis();
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static void Map(GtkWidget *widget);
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void UnMapThis();
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static void UnMap(GtkWidget *widget);
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gint FocusInThis(GtkWidget *widget);
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static gint FocusIn(GtkWidget *widget, GdkEventFocus *event);
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gint FocusOutThis(GtkWidget *widget);
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static gint FocusOut(GtkWidget *widget, GdkEventFocus *event);
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static void SizeRequest(GtkWidget *widget, GtkRequisition *requisition);
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#if GTK_CHECK_VERSION(3,0,0)
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static void GetPreferredWidth(GtkWidget *widget, gint *minimalWidth, gint *naturalWidth);
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static void GetPreferredHeight(GtkWidget *widget, gint *minimalHeight, gint *naturalHeight);
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#endif
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static void SizeAllocate(GtkWidget *widget, GtkAllocation *allocation);
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void CheckForFontOptionChange();
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#if GTK_CHECK_VERSION(3,0,0)
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gboolean DrawTextThis(cairo_t *cr);
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static gboolean DrawText(GtkWidget *widget, cairo_t *cr, ScintillaGTK *sciThis);
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gboolean DrawThis(cairo_t *cr);
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static gboolean DrawMain(GtkWidget *widget, cairo_t *cr);
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#else
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gboolean ExposeTextThis(GtkWidget *widget, GdkEventExpose *ose);
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static gboolean ExposeText(GtkWidget *widget, GdkEventExpose *ose, ScintillaGTK *sciThis);
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gboolean Expose(GtkWidget *widget, GdkEventExpose *ose);
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static gboolean ExposeMain(GtkWidget *widget, GdkEventExpose *ose);
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#endif
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void ForAll(GtkCallback callback, gpointer callback_data);
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static void MainForAll(GtkContainer *container, gboolean include_internals, GtkCallback callback, gpointer callback_data);
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static void ScrollSignal(GtkAdjustment *adj, ScintillaGTK *sciThis);
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static void ScrollHSignal(GtkAdjustment *adj, ScintillaGTK *sciThis);
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gint PressThis(GdkEventButton *event);
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static gint Press(GtkWidget *widget, GdkEventButton *event);
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static gint MouseRelease(GtkWidget *widget, GdkEventButton *event);
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static gint ScrollEvent(GtkWidget *widget, GdkEventScroll *event);
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static gint Motion(GtkWidget *widget, GdkEventMotion *event);
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gboolean KeyThis(GdkEventKey *event);
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static gboolean KeyPress(GtkWidget *widget, GdkEventKey *event);
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static gboolean KeyRelease(GtkWidget *widget, GdkEventKey *event);
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#if GTK_CHECK_VERSION(3,0,0)
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gboolean DrawPreeditThis(GtkWidget *widget, cairo_t *cr);
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static gboolean DrawPreedit(GtkWidget *widget, cairo_t *cr, ScintillaGTK *sciThis);
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#else
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gboolean ExposePreeditThis(GtkWidget *widget, GdkEventExpose *ose);
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static gboolean ExposePreedit(GtkWidget *widget, GdkEventExpose *ose, ScintillaGTK *sciThis);
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#endif
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AtkObject *GetAccessibleThis(GtkWidget *widget);
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static AtkObject *GetAccessible(GtkWidget *widget);
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bool KoreanIME();
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void CommitThis(char *commitStr);
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static void Commit(GtkIMContext *context, char *str, ScintillaGTK *sciThis);
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void PreeditChangedInlineThis();
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void PreeditChangedWindowedThis();
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static void PreeditChanged(GtkIMContext *context, ScintillaGTK *sciThis);
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bool RetrieveSurroundingThis(GtkIMContext *context);
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static gboolean RetrieveSurrounding(GtkIMContext *context, ScintillaGTK *sciThis);
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bool DeleteSurroundingThis(GtkIMContext *context, gint characterOffset, gint characterCount);
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static gboolean DeleteSurrounding(GtkIMContext *context, gint characterOffset, gint characterCount,
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ScintillaGTK *sciThis);
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void MoveImeCarets(Sci::Position pos);
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void DrawImeIndicator(int indicator, Sci::Position len);
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void SetCandidateWindowPos();
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static void StyleSetText(GtkWidget *widget, GtkStyle *previous, void *);
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static void RealizeText(GtkWidget *widget, void *);
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static void Dispose(GObject *object);
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static void Destroy(GObject *object);
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static void SelectionReceived(GtkWidget *widget, GtkSelectionData *selection_data,
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guint time);
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static void SelectionGet(GtkWidget *widget, GtkSelectionData *selection_data,
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guint info, guint time);
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static gint SelectionClear(GtkWidget *widget, GdkEventSelection *selection_event);
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gboolean DragMotionThis(GdkDragContext *context, gint x, gint y, guint dragtime);
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static gboolean DragMotion(GtkWidget *widget, GdkDragContext *context,
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gint x, gint y, guint dragtime);
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static void DragLeave(GtkWidget *widget, GdkDragContext *context,
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guint time);
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static void DragEnd(GtkWidget *widget, GdkDragContext *context);
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static gboolean Drop(GtkWidget *widget, GdkDragContext *context,
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gint x, gint y, guint time);
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static void DragDataReceived(GtkWidget *widget, GdkDragContext *context,
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gint x, gint y, GtkSelectionData *selection_data, guint info, guint time);
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static void DragDataGet(GtkWidget *widget, GdkDragContext *context,
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GtkSelectionData *selection_data, guint info, guint time);
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static gboolean TimeOut(gpointer ptt);
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static gboolean IdleCallback(gpointer pSci);
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static gboolean StyleIdle(gpointer pSci);
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void IdleWork() override;
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void QueueIdleWork(WorkItems items, Sci::Position upTo) override;
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void SetDocPointer(Document *document) override;
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static void PopUpCB(GtkMenuItem *menuItem, ScintillaGTK *sciThis);
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#if GTK_CHECK_VERSION(3,0,0)
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static gboolean DrawCT(GtkWidget *widget, cairo_t *cr, CallTip *ctip);
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#else
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static gboolean ExposeCT(GtkWidget *widget, GdkEventExpose *ose, CallTip *ctip);
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#endif
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static gboolean PressCT(GtkWidget *widget, GdkEventButton *event, ScintillaGTK *sciThis);
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static sptr_t DirectFunction(sptr_t ptr,
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unsigned int iMessage, uptr_t wParam, sptr_t lParam);
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static sptr_t DirectStatusFunction(sptr_t ptr,
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unsigned int iMessage, uptr_t wParam, sptr_t lParam, int *pStatus);
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};
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// helper class to watch a GObject lifetime and get notified when it dies
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class GObjectWatcher {
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GObject *weakRef;
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void WeakNotifyThis([[maybe_unused]] GObject *obj) {
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PLATFORM_ASSERT(obj == weakRef);
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Destroyed();
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weakRef = nullptr;
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}
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static void WeakNotify(gpointer data, GObject *obj) {
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static_cast<GObjectWatcher *>(data)->WeakNotifyThis(obj);
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}
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public:
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GObjectWatcher(GObject *obj) :
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weakRef(obj) {
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g_object_weak_ref(weakRef, WeakNotify, this);
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}
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// Deleted so GObjectWatcher objects can not be copied.
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GObjectWatcher(const GObjectWatcher&) = delete;
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GObjectWatcher(GObjectWatcher&&) = delete;
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GObjectWatcher&operator=(const GObjectWatcher&) = delete;
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GObjectWatcher&operator=(GObjectWatcher&&) = delete;
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virtual ~GObjectWatcher() {
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if (weakRef) {
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g_object_weak_unref(weakRef, WeakNotify, this);
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}
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}
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virtual void Destroyed() {}
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bool IsDestroyed() const {
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return weakRef != nullptr;
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}
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};
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std::string ConvertText(const char *s, size_t len, const char *charSetDest,
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const char *charSetSource, bool transliterations, bool silent=false);
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}
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#endif
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