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ui: Switched default mouse drag in code view to code selection, panning when Shift is pressed

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This commit is contained in:
Eberhard Graether
2017-01-27 11:23:49 +01:00
parent 590f4138e1
commit 7ee9624217
2 changed files with 21 additions and 20 deletions
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src/lib_gui/qt/element/QtCodeArea.cpp
+20 -20
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@@ -464,17 +464,18 @@ void QtCodeArea::mousePressEvent(QMouseEvent* event)
if (event->button() == Qt::LeftButton)
{
m_oldMousePosition = event->pos();
m_panningDistance = 0;
if (Qt::KeyboardModifier::ShiftModifier & QApplication::keyboardModifiers())
{
m_isSelecting = true;
QTextCursor cursor = this->cursorForPosition(event->pos());
setTextCursor(cursor);
m_isPanning = true;
}
else
{
m_isPanning = true;
m_oldMousePosition = event->pos();
m_panningDistance = 0;
m_isSelecting = true;
QTextCursor cursor = this->cursorForPosition(event->pos());
setCursor(cursor);
}
}
}
@@ -484,12 +485,7 @@ void QtCodeArea::mouseReleaseEvent(QMouseEvent* event)
const int panningThreshold = 5;
if (event->button() == Qt::LeftButton)
{
if (m_isSelecting)
{
m_isSelecting = false;
return;
}
m_isSelecting = false;
m_isPanning = false;
if (m_panningDistance < panningThreshold) // dont do anything if mouse is release to end some real panning action.
@@ -513,25 +509,24 @@ void QtCodeArea::mouseReleaseEvent(QMouseEvent* event)
void QtCodeArea::mouseMoveEvent(QMouseEvent* event)
{
const QPoint currentMousePosition = event->pos();
const int deltaX = currentMousePosition.x() - m_oldMousePosition.x();
const int deltaY = currentMousePosition.y() - m_oldMousePosition.y();
m_oldMousePosition = currentMousePosition;
m_panningDistance += abs(deltaX + deltaY);
if (m_isSelecting)
{
QTextCursor cursor = textCursor();
cursor.setPosition(this->cursorForPosition(event->pos()).position(), QTextCursor::KeepAnchor);
setTextCursor(cursor);
setCursor(cursor);
}
else if (m_isPanning)
{
const QPoint currentMousePosition = event->pos();
const int deltaX = currentMousePosition.x() - m_oldMousePosition.x();
const int deltaY = currentMousePosition.y() - m_oldMousePosition.y();
m_oldMousePosition = currentMousePosition;
QScrollBar* scrollbar = horizontalScrollBar();
int visibleContentWidth = width() - lineNumberAreaWidth();
float deltaPosRatio = float(deltaX) / (visibleContentWidth);
scrollbar->setValue(scrollbar->value() - utility::roundToInt(deltaPosRatio * scrollbar->pageStep()));
m_panningDistance += abs(deltaX + deltaY);
}
QTextCursor cursor = this->cursorForPosition(event->pos());
@@ -609,6 +604,11 @@ void QtCodeArea::clearSelection()
QTextCursor cursor = textCursor();
cursor.clearSelection();
setCursor(cursor);
}
void QtCodeArea::setCursor(const QTextCursor& cursor)
{
int horizontalValue = horizontalScrollBar()->value();
int verticalValue = verticalScrollBar()->value();