Rewrote profile graph drawing code.

[apitrace] / gui / graphing / heatmapverticalaxiswidget.cpp

diff --git a/gui/graphing/heatmapverticalaxiswidget.cpp b/gui/graphing/heatmapverticalaxiswidget.cpp
new file mode 100644 (file)
index 0000000..ae127c0
--- /dev/null
+++ b/gui/graphing/heatmapverticalaxiswidget.cpp
@@ -0,0 +1,82 @@
+#include "heatmapverticalaxiswidget.h"
+
+#include <qmath.h>
+#include <QPainter>
+#include <QMouseEvent>
+
+HeatmapVerticalAxisWidget::HeatmapVerticalAxisWidget(QWidget* parent) :
+    GraphAxisWidget(parent),
+    m_data(NULL)
+{
+    m_rowHeight = 20;
+}
+
+void HeatmapVerticalAxisWidget::setDataProvider(HeatmapDataProvider* data)
+{
+    delete m_data;
+    m_data = data;
+
+    m_valueMin = 0;
+    m_valueMax = (data->dataRows() + data->headerRows()) * m_rowHeight;
+
+    m_valueBegin = m_valueMin;
+    m_valueEnd = m_valueMax;
+
+    update();
+}
+
+void HeatmapVerticalAxisWidget::mouseDoubleClickEvent(QMouseEvent *e)
+{
+    if (e->pos().y() < m_data->headerRows() * m_rowHeight) {
+        m_selectionState->type = SelectionState::None;
+        emit selectionChanged();
+    } else {
+        int row = e->pos().y();
+        row -= m_data->headerRows() * m_rowHeight;
+        row += m_valueBegin;
+        row /= m_rowHeight;
+
+        if (row >= m_data->dataRows()) {
+            m_selectionState->type = SelectionState::None;
+            emit selectionChanged();
+        } else {
+            m_selectionState->type = SelectionState::Vertical;
+            m_selectionState->start = m_data->dataRowAt(row);
+            m_selectionState->end = m_selectionState->start;
+            emit selectionChanged();
+        }
+    }
+}
+
+void HeatmapVerticalAxisWidget::paintEvent(QPaintEvent *)
+{
+    if (!m_data) {
+        return;
+    }
+
+    QPainter painter(this);
+    painter.setPen(Qt::black);
+    painter.setBrush(Qt::lightGray);
+    painter.drawRect(0, 0, width() - 1, height() - 1);
+
+    /* Draw scrollable rows */
+    painter.translate(0, m_data->headerRows() * m_rowHeight - m_valueBegin % m_rowHeight);
+    int rowStart = m_valueBegin / m_rowHeight;
+    int rowEnd = qMin<int>(qCeil(m_valueEnd / (double)m_rowHeight), m_data->dataRows());
+
+    for (unsigned i = rowStart; i < rowEnd; ++i) {
+        painter.drawText(0, 0, width(), m_rowHeight, Qt::AlignHCenter | Qt::AlignVCenter, m_data->dataLabel(i));
+        painter.drawLine(0, m_rowHeight, width(), m_rowHeight);
+        painter.translate(0, m_rowHeight);
+    }
+
+    /* Draw fixed position headers */
+    painter.resetTransform();
+    painter.drawRect(0, 0, width() - 1, m_data->headerRows() * m_rowHeight);
+
+    for (unsigned i = 0; i < m_data->headerRows(); ++i) {
+        painter.drawText(0, 0, width(), m_rowHeight, Qt::AlignHCenter | Qt::AlignVCenter, m_data->headerLabel(i));
+        painter.drawLine(0, m_rowHeight, width(), m_rowHeight);
+        painter.translate(0, m_rowHeight);
+    }
+}