#ifndef DRAWING_WINDOW_H
#define DRAWING_WINDOW_H
+#include <QBasicTimer>
+#include <QColor>
+#include <QImage>
+#include <QMutex>
+#include <QPainter>
+#include <QPen>
+#include <QRect>
+#include <QWaitCondition>
#include <QWidget>
#include <Qt>
-class DrawingWindowPrivate;
+class DrawingThread;
class DrawingWindow: public QWidget {
public:
const int width;
const int height;
+ // http://www.w3.org/TR/SVG/types.html#ColorKeywords
+ void setColor(unsigned int color);
+ void setColor(const char *name);
void setColor(float red, float green, float blue);
+
+ void setBgColor(unsigned int color);
+ void setBgColor(const char *name);
void setBgColor(float red, float green, float blue);
void clearGraph();
void drawPoint(int x, int y);
void drawLine(int x1, int y1, int x2, int y2);
void drawRect(int x1, int y1, int x2, int y2);
+ void fillRect(int x1, int y1, int x2, int y2);
+ void drawCircle(int x, int y, int r);
+ void fillCircle(int x, int y, int r);
+
+ void drawText(int x, int y, const char *text, int flags = 0);
+ void drawTextBg(int x, int y, const char *text, int flags = 0);
+
+ unsigned int getPointColor(int x, int y);
bool sync(unsigned long time = ULONG_MAX);
+ void closeGraph();
+
void sleep(unsigned long secs);
void msleep(unsigned long msecs);
void usleep(unsigned long usecs);
void timerEvent(QTimerEvent *ev);
private:
- DrawingWindowPrivate * const d;
+ static const int paintInterval = 33;
+
+ QBasicTimer timer;
+ QMutex imageMutex;
+ QMutex syncMutex;
+ QWaitCondition syncCondition;
+ bool terminateThread;
+ int lockCount;
+
+ QImage *image;
+ QPainter *painter;
+
+ bool dirtyFlag;
+ QRect dirtyRect;
+
+ DrawingThread *thread;
+
+ void initialize(ThreadFunction f);
+
+ void setColor(const QColor& color);
+ void setBgColor(const QColor& color);
+ QColor getColor();
+ QColor getBgColor();
+
+ void safeLock(QMutex &mutex);
+ void safeUnlock(QMutex &mutex);
+
+ void dirty();
+ void dirty(int x, int y);
+ void dirty(int x1, int y1, int x2, int y2);
+ void dirty(const QRect &rect);
- friend class DrawingWindowPrivate;
+ void mayUpdate();
};
#endif // !DRAWING_WINDOW_H