Rewrote profile graph drawing code.

[apitrace] / gui / graphing / graphaxiswidget.cpp

diff --git a/gui/graphing/graphaxiswidget.cpp b/gui/graphing/graphaxiswidget.cpp
new file mode 100644 (file)
index 0000000..0adeadd
--- /dev/null
+++ b/gui/graphing/graphaxiswidget.cpp
@@ -0,0 +1,141 @@
+#include "graphaxiswidget.h"
+
+#include <QMouseEvent>
+
+GraphAxisWidget::GraphAxisWidget(QWidget* parent) :
+    QWidget(parent),
+    m_selectable(None),
+    m_selectionState(NULL)
+{
+}
+
+
+bool GraphAxisWidget::hasSelection()
+{
+    if (!m_selectionState) {
+        return false;
+    }
+
+    if (m_selectionState->type == SelectionState::Horizontal && m_orientation == GraphAxisWidget::Horizontal) {
+        return true;
+    }
+
+    if (m_selectionState->type == SelectionState::Vertical && m_orientation == GraphAxisWidget::Vertical) {
+        return true;
+    }
+
+    return false;
+}
+
+
+void GraphAxisWidget::setSelectable(SelectionStyle selectable)
+{
+    m_selectable = selectable;
+}
+
+
+void GraphAxisWidget::setSelectionState(SelectionState* state)
+{
+    m_selectionState = state;
+}
+
+
+void GraphAxisWidget::setOrientation(Orientation v)
+{
+    m_orientation = v;
+
+    if (m_orientation == Horizontal) {
+        setMinimumWidth(60);
+    } else {
+        setMinimumHeight(60);
+    }
+}
+
+
+void GraphAxisWidget::mouseMoveEvent(QMouseEvent *e)
+{
+    if (m_selectable == None) {
+        return;
+    }
+
+    int pos, max;
+
+    if (m_orientation == Horizontal) {
+        pos = e->x();
+        max = width();
+    } else {
+        pos = e->y();
+        max = height();
+    }
+
+    double value = m_valueEnd - m_valueBegin;
+    value *= pos / (double)max;
+    value += m_valueBegin;
+
+    if (e->buttons().testFlag(Qt::LeftButton)) {
+        m_selectionState->start = qMin<qint64>(m_mousePressValue, value);
+        m_selectionState->end = qMax<qint64>(m_mousePressValue, value);
+        m_selectionState->type = m_orientation == Horizontal ? SelectionState::Horizontal : SelectionState::Vertical;
+        emit selectionChanged();
+        update();
+    }
+}
+
+
+void GraphAxisWidget::mousePressEvent(QMouseEvent *e)
+{
+    if (m_selectable == None) {
+        return;
+    }
+
+    int pos, max;
+
+    if (m_orientation == Horizontal) {
+        pos = e->x();
+        max = width();
+    } else {
+        pos = e->y();
+        max = height();
+    }
+
+    double value = m_valueEnd - m_valueBegin;
+    value *= pos / (double)max;
+    value += m_valueBegin;
+
+    m_mousePressPosition = e->pos();
+    m_mousePressValue = value;
+}
+
+
+void GraphAxisWidget::mouseReleaseEvent(QMouseEvent *e)
+{
+    if (m_selectable == None) {
+        return;
+    }
+
+    int dx = qAbs(m_mousePressPosition.x() - e->x());
+    int dy = qAbs(m_mousePressPosition.y() - e->y());
+
+    if (dx + dy < 2) {
+        m_selectionState->type = SelectionState::None;
+        emit selectionChanged();
+    }
+}
+
+
+void GraphAxisWidget::setRange(qint64 min, qint64 max)
+{
+    m_valueMin = min;
+    m_valueMax = max;
+    update();
+}
+
+
+void GraphAxisWidget::setView(qint64 start, qint64 end)
+{
+    m_valueBegin = start;
+    m_valueEnd = end;
+    update();
+}
+
+#include "graphaxiswidget.moc"