tempo-plotter Changeset - d7b5d4d9c9a2 · protofusion repositories

Changeset - d7b5d4d9c9a2

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Hasan Yavuz ÖZDERYA - 9 years ago 2017-02-25 09:57:21
hy@ozderya.net

show tracker text when picking

2 files changed with 94 insertions and 6 deletions:

src/scalepicker.cpp

src/scalepicker.h

0 comments (0 inline, 0 general)

src/scalepicker.cpp

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@@ @@ -166,10 +166,11 @@ bool ScalePicker::eventFilter(QObject* o @@
+    }
+}
 const int TEXT_MARGIN = 4;
 void ScalePicker::drawPlotOverlay(QPainter* painter)
+{
     const double FILL_ALPHA = 0.2;
     const int TEXT_MARGIN = 4;
     painter->save();
     painter->setPen(_pen);
@@ @@ -181,23 +182,31 @@ void ScalePicker::drawPlotOverlay(QPaint @@
         painter->setBrush(color);
         QRect rect;
         QwtText text(QString("%1").arg(position(currentPosPx)));
         auto tSize = text.textSize(painter->font());
         QPointF tTopLeft;
         if (_scaleWidget->alignment() == QwtScaleDraw::BottomScale ||
             _scaleWidget->alignment() == QwtScaleDraw::TopScale)
+        {
             int height = painter->device()->height();
             rect = QRect(posCanvasPx(firstPosPx), 0, currentPosPx-firstPosPx, height);
             int canvasHeight = painter->device()->height();
             int pickWidth = currentPosPx-firstPosPx;
             rect = QRect(posCanvasPx(firstPosPx), 0, pickWidth, canvasHeight);
+        }
         else // vertical
+        {
             int width = painter->device()->width();
             rect = QRect(0, posCanvasPx(firstPosPx), width, currentPosPx-firstPosPx);
             int canvasWidth = painter->device()->width();
             int pickHeight = currentPosPx-firstPosPx;
             rect = QRect(0, posCanvasPx(firstPosPx), canvasWidth, pickHeight);
+        }
         painter->drawRect(rect);
         text.draw(painter, pickTrackerTextRect(painter, rect, tSize));
+    }
     else if (_scaleWidget->underMouse())
+    {
         // draw tracker text centered on cursor
         int canvasPosPx = posCanvasPx(currentPosPx);
         QwtText text(QString("%1").arg(position(currentPosPx)));
         int canvasPosPx = posCanvasPx(currentPosPx);
         auto tsize = text.textSize(painter->font());
         QPointF topLeft;
@@ @@ -224,6 +233,83 @@ void ScalePicker::drawPlotOverlay(QPaint @@
     painter->restore();
+}
 QRectF ScalePicker::pickTrackerTextRect(QPainter* painter, QRect pickRect, QSizeF textSize)
+{
     qreal left = 0;
     int pickLength = currentPosPx - firstPosPx;
     QPointF topLeft;
     if (_scaleWidget->alignment() == QwtScaleDraw::BottomScale ||
         _scaleWidget->alignment() == QwtScaleDraw::TopScale)
+    {
         int canvasWidth = painter->device()->width();
         if (pickLength > 0)
+        {
             left = pickRect.right() + TEXT_MARGIN;
+        }
         else
+        {
             left = pickRect.right() - (textSize.width() + TEXT_MARGIN);
+        }
         // make sure text is not off the canvas
         if (left < TEXT_MARGIN)
+        {
             left = std::max(0, pickRect.right()) + TEXT_MARGIN;
+        }
         else if (left + textSize.width() + TEXT_MARGIN > canvasWidth)
+        {
             left = std::min(pickRect.right(), canvasWidth) - (textSize.width() + TEXT_MARGIN);
+        }
         if (_scaleWidget->alignment() == QwtScaleDraw::BottomScale)
+        {
             int canvasHeight = painter->device()->height();
             topLeft = QPointF(left, canvasHeight - textSize.height());
+        }
         else                // top scale
+        {
             topLeft = QPointF(left, 0);
+        }
+    }
     else                        // left/right scale
+    {
         int canvasHeight = painter->device()->height();
         int top = 0;
         if (pickLength > 0)
+        {
             top = pickRect.bottom();
+        }
         else
+        {
             top = pickRect.bottom() - textSize.height();
+        }
         // make sure text is not off the canvas
         if (top < 0)
+        {
             top = std::max(0, pickRect.bottom());
+        }
         else if (top + textSize.height() > canvasHeight)
+        {
             top = std::min(canvasHeight, pickRect.bottom()) - textSize.height();
+        }
         if (_scaleWidget->alignment() == QwtScaleDraw::LeftScale)
+        {
             topLeft = QPointF(TEXT_MARGIN, top);
+        }
         else                    // right scale
+        {
             int canvasWidth = painter->device()->width();
             topLeft = QPointF(canvasWidth - textSize.width() - TEXT_MARGIN, top);
+        }
+    }
     return QRectF(topLeft, textSize);
+}
 void ScalePicker::drawScaleOverlay(QPainter* painter)
+{
     painter->save();

src/scalepicker.h

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@@ @@ -65,6 +65,8 @@ private: @@
     void drawTriangle(QPainter* painter, int position);
 private slots:
     /// Returns the text position for tracker text shown during picking
     QRectF pickTrackerTextRect(QPainter* painter, QRect pickRect, QSizeF textSize);
     void updateSnapPoints();
 };

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