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fix: Page Up scroll error

This commit is contained in:
Roy Qu 2024-03-22 23:17:20 +08:00
parent bf9e56367e
commit 8a5102172e
1 changed files with 19 additions and 7 deletions
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26
libs/qsynedit/qsynedit/qsynedit.cpp
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@ -3053,7 +3053,7 @@ void QSynEdit::ensureCursorPosVisibleEx(bool ForceToMiddle)
setTopPos( (vCaretRow - (mLinesInWindow - 1) / 2-1) * mTextHeight);
} else {
if (vCaretRow < yposToRow(0))
setTopPos(vCaretRow);
setTopPos( (vCaretRow - 1) * mTextHeight);
else if (vCaretRow > yposToRow(0) + (mLinesInWindow - 2) && mLinesInWindow > 2) {
setTopPos( (vCaretRow - (mLinesInWindow - 2) -1) * mTextHeight);
} else
@ -6241,40 +6241,52 @@ void QSynEdit::wheelEvent(QWheelEvent *event)
|| (mWheelAccumulatedDeltaX<0 &&event->angleDelta().y()>0))
mWheelAccumulatedDeltaX=0;
mWheelAccumulatedDeltaX+=event->angleDelta().y();
int value = horizontalScrollBar()->value();
int oldValue = value;
while (mWheelAccumulatedDeltaX>=120) {
mWheelAccumulatedDeltaX-=120;
horizontalScrollBar()->setValue(horizontalScrollBar()->value()+sign*mMouseWheelScrollSpeed*mCharWidth);
value += sign*mMouseWheelScrollSpeed*mCharWidth;
}
while (mWheelAccumulatedDeltaX<=-120) {
mWheelAccumulatedDeltaX+=120;
horizontalScrollBar()->setValue(horizontalScrollBar()->value()-sign*mMouseWheelScrollSpeed*mCharWidth);
value -= sign*mMouseWheelScrollSpeed*mCharWidth;
}
if (value != oldValue)
horizontalScrollBar()->setValue(value);
} else {
if ( (mWheelAccumulatedDeltaY>0 &&event->angleDelta().y()<0)
|| (mWheelAccumulatedDeltaY<0 &&event->angleDelta().y()>0))
mWheelAccumulatedDeltaY=0;
mWheelAccumulatedDeltaY+=event->angleDelta().y();
int value = verticalScrollBar()->value();
int oldValue = value;
while (mWheelAccumulatedDeltaY>=120) {
mWheelAccumulatedDeltaY-=120;
verticalScrollBar()->setValue(verticalScrollBar()->value()+sign*mMouseWheelScrollSpeed*mTextHeight);
value += sign*mMouseWheelScrollSpeed*mTextHeight;
}
while (mWheelAccumulatedDeltaY<=-120) {
mWheelAccumulatedDeltaY+=120;
verticalScrollBar()->setValue(verticalScrollBar()->value()-sign*mMouseWheelScrollSpeed*mTextHeight);
value -= sign*mMouseWheelScrollSpeed*mTextHeight;
}
if (value != oldValue)
verticalScrollBar()->setValue(value);
if ( (mWheelAccumulatedDeltaX>0 &&event->angleDelta().x()<0)
|| (mWheelAccumulatedDeltaX<0 &&event->angleDelta().x()>0))
mWheelAccumulatedDeltaX=0;
mWheelAccumulatedDeltaX+=event->angleDelta().x();
value = horizontalScrollBar()->value();
oldValue = value;
while (mWheelAccumulatedDeltaX>=120) {
mWheelAccumulatedDeltaX-=120;
horizontalScrollBar()->setValue(horizontalScrollBar()->value()+sign*mMouseWheelScrollSpeed*mCharWidth);
value += sign*mMouseWheelScrollSpeed*mCharWidth;
}
while (mWheelAccumulatedDeltaX<=-120) {
mWheelAccumulatedDeltaX+=120;
horizontalScrollBar()->setValue(horizontalScrollBar()->value()-sign*mMouseWheelScrollSpeed*mCharWidth);
value -= sign*mMouseWheelScrollSpeed*mCharWidth;
}
if (value != oldValue)
horizontalScrollBar()->setValue(value);
}
event->accept();
}