add bottom buttons

PineapplePictures.pro

@@ -27,11 +27,13 @@ CONFIG += c++11
 SOURCES += \
         main.cpp \
         mainwindow.cpp \
-    graphicsview.cpp
+    graphicsview.cpp \
+    bottombuttongroup.cpp
 
 HEADERS += \
         mainwindow.h \
-    graphicsview.h
+    graphicsview.h \
+    bottombuttongroup.h
 
 FORMS +=
 

bottombuttongroup.cpp

@@ -0,0 +1,42 @@
+#include "bottombuttongroup.h"
+
+#include <QPushButton>
+#include <QVBoxLayout>
+#include <QDebug>
+
+BottomButtonGroup::BottomButtonGroup(QWidget *parent)
+    : QGroupBox (parent)
+{
+    QHBoxLayout * mainLayout = new QHBoxLayout(this);
+    mainLayout->setSizeConstraint(QLayout::SetFixedSize);
+    this->setLayout(mainLayout);
+    this->setSizePolicy(QSizePolicy::Minimum, QSizePolicy::Minimum);
+    this->setStyleSheet("BottomButtonGroup {"
+                        "border: 1px solid gray;"
+                        "border-top-left-radius: 10px;"
+                        "border-top-right-radius: 10px;"
+                        "border-bottom: none;"
+                        "background-color:rgba(0,0,0,180)"
+                        "}"
+                        "QPushButton {"
+                        "background-color:rgba(225,255,255,0);"
+                        "color: white;"
+                        "}");
+
+    auto newBtn = [](QString text) -> QPushButton * {
+        QPushButton * btn = new QPushButton(text);
+        btn->setFixedSize(40, 40);
+        return btn;
+    };
+    addButton(newBtn("1:1"));
+    addButton(newBtn("Full"));
+    addButton(newBtn("Zoom+"));
+    addButton(newBtn("Zoom-"));
+    addButton(newBtn("Rorate"));
+}
+
+void BottomButtonGroup::addButton(QAbstractButton *button)
+{
+    layout()->addWidget(button);
+    updateGeometry();
+}

bottombuttongroup.h

@@ -0,0 +1,16 @@
+#ifndef BOTTOMBUTTONGROUP_H
+#define BOTTOMBUTTONGROUP_H
+
+#include <QAbstractButton>
+#include <QGroupBox>
+
+class BottomButtonGroup : public QGroupBox
+{
+    Q_OBJECT
+public:
+    explicit BottomButtonGroup(QWidget *parent = nullptr);
+
+    void addButton(QAbstractButton *button);
+};
+
+#endif // BOTTOMBUTTONGROUP_H

mainwindow.cpp

@@ -1,11 +1,17 @@
 #include "mainwindow.h"
 
+#include "bottombuttongroup.h"
 #include "graphicsview.h"
 
 #include <QMouseEvent>
 #include <QMovie>
 #include <QDebug>
 #include <QGraphicsTextItem>
+#include <QApplication>
+
+#ifdef _WIN32
+#include <windows.h>
+#endif // _WIN32
 
 MainWindow::MainWindow(QWidget *parent) :
     QMainWindow(parent)
@@ -31,11 +37,11 @@ MainWindow::MainWindow(QWidget *parent) :
     QGraphicsTextItem * textItem = scene->addText("Hello, world!");
     textItem->setDefaultTextColor(QColor("White"));
 
-    GraphicsView * test = new GraphicsView(this);
-    test->setScene(scene);
-    this->setCentralWidget(test);
+    GraphicsView * pictureView = new GraphicsView(this);
+    pictureView->setScene(scene);
+    this->setCentralWidget(pictureView);
 
-    m_closeButton = new QPushButton(test);
+    m_closeButton = new QPushButton(pictureView);
     m_closeButton->setFlat(true);
     m_closeButton->setFixedSize(50, 50);
     m_closeButton->setStyleSheet("QPushButton {"
@@ -47,6 +53,8 @@ MainWindow::MainWindow(QWidget *parent) :
 
     connect(m_closeButton, &QAbstractButton::clicked,
             this, &MainWindow::closeWindow);
+
+    m_bottomButtonGroup = new BottomButtonGroup(this);
 }
 
 MainWindow::~MainWindow()
@@ -54,6 +62,13 @@ MainWindow::~MainWindow()
 
 }
 
+void MainWindow::showEvent(QShowEvent *event)
+{
+    updateWidgetsPosition();
+
+    return QMainWindow::showEvent(event);
+}
+
 void MainWindow::mousePressEvent(QMouseEvent *event)
 {
     if (event->buttons() & Qt::LeftButton) {
@@ -92,11 +107,98 @@ void MainWindow::mouseDoubleClickEvent(QMouseEvent *event)
 
 void MainWindow::resizeEvent(QResizeEvent *event)
 {
-    m_closeButton->move(width() - m_closeButton->width(), 0);
+    updateWidgetsPosition();
 
     return QMainWindow::resizeEvent(event);
 }
 
+bool MainWindow::nativeEvent(const QByteArray &eventType, void *message, long *result)
+{
+#ifdef _WIN32
+    // https://stackoverflow.com/questions/6649936/c-compiling-on-windows-and-linux-ifdef-switch
+    // Too lazy to do this now.. just stackoverflow it and did a copy and paste..
+    Q_UNUSED(eventType);
+    MSG* msg = static_cast<MSG*>(message);
+
+    if (msg->message == WM_NCHITTEST) {
+        if (isMaximized()) {
+            return false;
+        }
+
+        *result = 0;
+        const LONG borderWidth = 8;
+        RECT winrect;
+        GetWindowRect(reinterpret_cast<HWND>(winId()), &winrect);
+
+        // must be short to correctly work with multiple monitors (negative coordinates)
+        short x = msg->lParam & 0x0000FFFF;
+        short y = (msg->lParam & 0xFFFF0000) >> 16;
+
+        bool resizeWidth = minimumWidth() != maximumWidth();
+        bool resizeHeight = minimumHeight() != maximumHeight();
+        if (resizeWidth) {
+            //left border
+            if (x >= winrect.left && x < winrect.left + borderWidth) {
+                *result = HTLEFT;
+            }
+            //right border
+            if (x < winrect.right && x >= winrect.right - borderWidth) {
+                *result = HTRIGHT;
+            }
+        }
+        if (resizeHeight) {
+            //bottom border
+            if (y < winrect.bottom && y >= winrect.bottom - borderWidth) {
+                *result = HTBOTTOM;
+            }
+            //top border
+            if (y >= winrect.top && y < winrect.top + borderWidth) {
+                *result = HTTOP;
+            }
+        }
+        if (resizeWidth && resizeHeight) {
+            //bottom left corner
+            if (x >= winrect.left && x < winrect.left + borderWidth &&
+                    y < winrect.bottom && y >= winrect.bottom - borderWidth)
+            {
+                *result = HTBOTTOMLEFT;
+            }
+            //bottom right corner
+            if (x < winrect.right && x >= winrect.right - borderWidth &&
+                    y < winrect.bottom && y >= winrect.bottom - borderWidth)
+            {
+                *result = HTBOTTOMRIGHT;
+            }
+            //top left corner
+            if (x >= winrect.left && x < winrect.left + borderWidth &&
+                    y >= winrect.top && y < winrect.top + borderWidth)
+            {
+                *result = HTTOPLEFT;
+            }
+            //top right corner
+            if (x < winrect.right && x >= winrect.right - borderWidth &&
+                    y >= winrect.top && y < winrect.top + borderWidth)
+            {
+                *result = HTTOPRIGHT;
+            }
+        }
+
+        if (*result != 0)
+            return true;
+
+        QWidget *action = QApplication::widgetAt(QCursor::pos());
+        if (action == this) {
+            *result = HTCAPTION;
+            return true;
+        }
+    }
+
+    return false;
+#else
+    return QMainWindow::nativeEvent(eventType, *message, *result);
+#endif // _WIN32
+}
+
 void MainWindow::closeWindow()
 {
     QRect windowRect(this->geometry());
@@ -106,3 +208,10 @@ void MainWindow::closeWindow()
     m_floatUpAnimation->setEndValue(QRect(this->geometry().x(), this->geometry().y()-80, this->geometry().width(), this->geometry().height()));
     m_exitAnimationGroup->start();
 }
+
+void MainWindow::updateWidgetsPosition()
+{
+    m_closeButton->move(width() - m_closeButton->width(), 0);
+    m_bottomButtonGroup->move((width() - m_bottomButtonGroup->width()) / 2,
+                              height() - m_bottomButtonGroup->height());
+}

mainwindow.h

@@ -6,6 +6,7 @@
 #include <QPropertyAnimation>
 #include <QPushButton>
 
+class BottomButtonGroup;
 class MainWindow : public QMainWindow
 {
     Q_OBJECT
@@ -15,13 +16,17 @@ public:
     ~MainWindow() override;
 
 protected slots:
+    void showEvent(QShowEvent *event) override;
     void mousePressEvent(QMouseEvent *event) override;
     void mouseMoveEvent(QMouseEvent *event) override;
     void mouseReleaseEvent(QMouseEvent *event) override;
     void mouseDoubleClickEvent(QMouseEvent *event) override;
     void resizeEvent(QResizeEvent *event) override;
 
+    bool nativeEvent(const QByteArray& eventType, void* message, long* result) override;
+
     void closeWindow();
+    void updateWidgetsPosition();
 
 private:
     QPoint m_oldMousePos;
@@ -29,6 +34,7 @@ private:
     QPropertyAnimation *m_floatUpAnimation;
     QParallelAnimationGroup *m_exitAnimationGroup;
     QPushButton *m_closeButton;
+    BottomButtonGroup *m_bottomButtonGroup;
     bool m_clickedOnWindow = false;
 };