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[graphlib.git] / DrawingWindow.h

diff --git a/DrawingWindow.h b/DrawingWindow.h
index d2ee6de..17253ba 100644 (file)
--- a/DrawingWindow.h
+++ b/DrawingWindow.h
@@ -1,25 +1,20 @@
 #ifndef DRAWING_WINDOW_H
 #define DRAWING_WINDOW_H
 
-#define USE_PIXMAP_CACHE
-
 #include <QBasicTimer>
 #include <QColor>
 #include <QImage>
 #include <QMutex>
-#include <QPainter>
-#ifdef USE_PIXMAP_CACHE
-#  include <QPixmap>
-#endif
 #include <QRect>
+#include <QWaitCondition>
 #include <QWidget>
 #include <Qt>
 
-class DrawingWindow: public QWidget {
-/*     Q_OBJECT */
+class DrawingThread;
 
+class DrawingWindow: public QWidget {
 public:
-    typedef int (*ThreadFunction)(DrawingWindow &);
+    typedef void (*ThreadFunction)(DrawingWindow &);
 
     static const int DEFAULT_WIDTH = 640;
     static const int DEFAULT_HEIGHT = 480;
@@ -35,74 +30,76 @@ public:
 
     ~DrawingWindow();
 
-    int width() const;
-    int height() const;
+    const int width;
+    const int height;
 
+    // http://www.w3.org/TR/SVG/types.html#ColorKeywords
     void setColor(float red, float green, float blue);
-    void setColor(const QColor &color);
+    void setColor(const char *name);
+    void setBgColor(float red, float green, float blue);
+    void setBgColor(const char *name);
+
+    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);
+
+    bool sync(unsigned long time = ULONG_MAX);
+
+    void closeGraph();
+
+    void sleep(unsigned long secs);
+    void msleep(unsigned long msecs);
+    void usleep(unsigned long usecs);
 
 protected:
+    void closeEvent(QCloseEvent *ev);
+    void customEvent(QEvent *ev);
+    void keyPressEvent(QKeyEvent *ev);
     void paintEvent(QPaintEvent *ev);
     void showEvent(QShowEvent *ev);
     void timerEvent(QTimerEvent *ev);
 
 private:
-    class DrawingThread;
-
     static const int paintInterval = 33;
 
     QBasicTimer timer;
+    QMutex imageMutex;
+    QMutex syncMutex;
+    QWaitCondition syncCondition;
+    bool terminateThread;
+    int lockCount;
 
     QImage *image;
     QPainter *painter;
-#ifdef USE_PIXMAP_CACHE
-    QPixmap *pixmap;
-#endif
 
-    DrawingThread *thread;
-    bool thread_started;
+    QColor fgColor;
+    QColor bgColor;
 
     bool dirtyFlag;
     QRect dirtyRect;
 
-    QMutex mutex;
+    DrawingThread *thread;
 
-    void initialize(ThreadFunction fun, int width, int height);
+    void initialize(ThreadFunction f);
 
-    void lock();
-    void unlock();
+    void applyColor();
 
-    void setDirtyRect();
-    void setDirtyRect(int x, int y);
-    void setDirtyRect(int x1, int y1, int x2, int y2);
-    void setDirtyRect(const QRect &rect);
-};
+    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);
 
-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();
-}
+    void mayUpdate();
+};
 
 #endif // !DRAWING_WINDOW_H