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Added mouse wheel event logic to Qt TAS piano roll.

This commit is contained in:
mjbudd77 2021-11-28 20:45:54 -05:00
parent 9360f7e1a8
commit b8c2ea09cf
2 changed files with 54 additions and 0 deletions
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52
src/drivers/Qt/TasEditor/TasEditorWindow.cpp
View File

@ -3166,6 +3166,7 @@ QPianoRoll::QPianoRoll(QWidget *parent)
markerDragFrameNumber = 0;
markerDragCountdown = 0;
drawingStartTimestamp = 0;
wheelPixelCounter = 0;
headerItemUnderMouse = 0;
nextHeaderUpdateTime = 0;
mouse_x = mouse_y = -1;
@ -3836,6 +3837,57 @@ void QPianoRoll::mouseMoveEvent(QMouseEvent * event)
updateDrag();
}
//----------------------------------------------------------------------------
void QPianoRoll::wheelEvent(QWheelEvent *event)
{
int ofs;
QPoint numPixels = event->pixelDelta();
QPoint numDegrees = event->angleDelta();
ofs = vbar->value();
if (!numPixels.isNull())
{
wheelPixelCounter -= numPixels.y();
//printf("numPixels: (%i,%i) \n", numPixels.x(), numPixels.y() );
}
else if (!numDegrees.isNull())
{
//QPoint numSteps = numDegrees / 15;
//printf("numSteps: (%i,%i) \n", numSteps.x(), numSteps.y() );
//printf("numDegrees: (%i,%i) %i\n", numDegrees.x(), numDegrees.y(), pxLineSpacing );
wheelPixelCounter -= (pxLineSpacing * numDegrees.y()) / (15 * 8);
}
//printf("Wheel Event: %i\n", wheelPixelCounter);
if (wheelPixelCounter >= pxLineSpacing)
{
ofs += (wheelPixelCounter / pxLineSpacing);
if (ofs > maxLineOffset)
{
ofs = maxLineOffset;
}
vbar->setValue(ofs);
wheelPixelCounter = wheelPixelCounter % pxLineSpacing;
}
else if (wheelPixelCounter <= -pxLineSpacing)
{
ofs += (wheelPixelCounter / pxLineSpacing);
if (ofs < 0)
{
ofs = 0;
}
vbar->setValue(ofs);
wheelPixelCounter = wheelPixelCounter % pxLineSpacing;
}
event->accept();
}
//----------------------------------------------------------------------------
void QPianoRoll::keyPressEvent(QKeyEvent *event)
{
//printf("Key Press: 0x%x \n", event->key() );

2
src/drivers/Qt/TasEditor/TasEditorWindow.h
View File

@ -165,6 +165,7 @@ class QPianoRoll : public QWidget
void mouseReleaseEvent(QMouseEvent * event);
void mouseMoveEvent(QMouseEvent * event);
void mouseDoubleClickEvent(QMouseEvent * event);
void wheelEvent(QWheelEvent *event);
void keyPressEvent(QKeyEvent *event);
void keyReleaseEvent(QKeyEvent *event);
void focusInEvent(QFocusEvent *event);
@ -224,6 +225,7 @@ class QPianoRoll : public QWidget
int markerDragFrameNumber;
int markerDragCountdown;
int drawingStartTimestamp;
int wheelPixelCounter;
int headerItemUnderMouse;
int nextHeaderUpdateTime;
int mouse_x;