#ifndef DRAWING_WINDOW_H
#define DRAWING_WINDOW_H
-#include "DrawingArea.h"
-#include <QPixmap>
-#include <QTimer>
+#define USE_PIXMAP_CACHE
+
+#include <QBasicTimer>
+#include <QColor>
+#include <QImage>
+#include <QMutex>
+#include <QPainter>
+#ifdef USE_PIXMAP_CACHE
+# include <QPixmap>
+#endif
+#include <QRect>
#include <QWidget>
+#include <Qt>
class DrawingWindow: public QWidget {
/* Q_OBJECT */
public:
- DrawingWindow(DrawingArea &a);
- DrawingWindow(QWidget *parent, DrawingArea &a);
- DrawingWindow(QWidget *parent, Qt::WindowFlags flags, DrawingArea &a);
+ typedef int (*ThreadFunction)(DrawingWindow &);
+
+ static const int DEFAULT_WIDTH = 640;
+ static const int DEFAULT_HEIGHT = 480;
+
+ DrawingWindow(ThreadFunction fun,
+ int width = DEFAULT_WIDTH, int height = DEFAULT_HEIGHT);
+ DrawingWindow(QWidget *parent,
+ ThreadFunction fun,
+ int width = DEFAULT_WIDTH, int height = DEFAULT_HEIGHT);
+ DrawingWindow(QWidget *parent, Qt::WindowFlags flags,
+ ThreadFunction fun,
+ int width = DEFAULT_WIDTH, int height = DEFAULT_HEIGHT);
+
+ ~DrawingWindow();
+
+ int width() const;
+ int height() const;
+
+ void setColor(float red, float green, float blue);
+ void setColor(const QColor &color);
+
+ void drawPoint(int x, int y);
+ void drawLine(int x1, int y1, int x2, int y2);
protected:
void paintEvent(QPaintEvent *ev);
+ void showEvent(QShowEvent *ev);
void timerEvent(QTimerEvent *ev);
private:
- DrawingArea &drawingArea;
- QPixmap pixmap;
+ class DrawingThread;
+
+ static const int paintInterval = 33;
+
QBasicTimer timer;
- void initialize();
+ QImage *image;
+ QPainter *painter;
+#ifdef USE_PIXMAP_CACHE
+ QPixmap *pixmap;
+#endif
+
+ DrawingThread *thread;
+ bool thread_started;
+
+ bool dirtyFlag;
+ QRect dirtyRect;
+
+ QMutex mutex;
+
+ void initialize(ThreadFunction fun, int width, int height);
+
+ void lock();
+ void unlock();
+
+ void setDirtyRect();
+ void setDirtyRect(int x, int y);
+ void setDirtyRect(int x1, int y1, int x2, int y2);
+ void setDirtyRect(const QRect &rect);
};
+inline
+int DrawingWindow::width() const
+{
+ return image->width();
+}
+
+inline
+int DrawingWindow::height() const
+{
+ return image->height();
+}
+
+inline
+void DrawingWindow::lock()
+{
+ mutex.lock();
+}
+
+inline
+void DrawingWindow::unlock()
+{
+ mutex.unlock();
+}
+
#endif // !DRAWING_WINDOW_H
