Rewrote profile graph drawing code.

[apitrace] / gui / graphing / graphaxiswidget.h

diff --git a/gui/graphing/graphaxiswidget.h b/gui/graphing/graphaxiswidget.h
new file mode 100644 (file)
index 0000000..6ae0080
--- /dev/null
+++ b/gui/graphing/graphaxiswidget.h
@@ -0,0 +1,73 @@
+#ifndef GRAPHAXISWIDGET_H
+#define GRAPHAXISWIDGET_H
+
+#include "graphing.h"
+
+#include <QWidget>
+
+/**
+ * The generic base class of all graph axes.
+ *
+ * Handles orientation, simple selections, and view area.
+ */
+class GraphAxisWidget : public QWidget {
+    Q_OBJECT
+public:
+    enum Orientation {
+        Horizontal,
+        Vertical
+    };
+
+    enum SelectionStyle {
+        None,
+        Single,
+        Range
+    };
+
+public:
+    GraphAxisWidget(QWidget* parent = 0);
+    virtual ~GraphAxisWidget(){}
+
+    /* Is this axis part of the active selection */
+    bool hasSelection();
+
+    void setSelectable(SelectionStyle selectable);
+    void setSelectionState(SelectionState* state);
+
+    void setOrientation(Orientation v);
+
+    virtual void mouseMoveEvent(QMouseEvent *e);
+    virtual void mousePressEvent(QMouseEvent *e);
+    virtual void mouseReleaseEvent(QMouseEvent *e);
+
+public slots:
+    /* The minimum and maximum values of this axis */
+    void setRange(qint64 min, qint64 max);
+
+    /* The currently visible range of values */
+    void setView(qint64 start, qint64 end);
+
+signals:
+    void selectionChanged();
+
+protected:
+    Orientation m_orientation;
+
+    /* The min/max value of this axis */
+    qint64 m_valueMin;
+    qint64 m_valueMax;
+
+    /* The highest and lowest currently visible value */
+    qint64 m_valueBegin;
+    qint64 m_valueEnd;
+
+    /* Selection */
+    SelectionStyle m_selectable;
+    SelectionState* m_selectionState;
+
+    /* Mouse tracking */
+    QPoint m_mousePressPosition;
+    qint64 m_mousePressValue;
+};
+
+#endif