110 lines
2.4 KiB
C++
110 lines
2.4 KiB
C++
#include "trackviewsplitter.h"
|
|
|
|
#include <QDebug>
|
|
#include <QPainter>
|
|
|
|
#include "trackviewitem.h"
|
|
|
|
TrackViewSplitter::TrackViewSplitter(Qt::Alignment vertical_alignment, QWidget* parent) :
|
|
QSplitter(Qt::Vertical, parent),
|
|
alignment_(vertical_alignment)
|
|
{
|
|
setHandleWidth(1);
|
|
|
|
int initial_height = 0;
|
|
|
|
if (alignment_ == Qt::AlignBottom) {
|
|
// Add empty spacer so we get a splitter handle after the last element
|
|
addWidget(new QWidget());
|
|
}
|
|
|
|
for (int i=0;i<3;i++) {
|
|
TrackViewItem* w = new TrackViewItem();
|
|
addWidget(w);
|
|
|
|
initial_height += w->sizeHint().height() + handleWidth();
|
|
}
|
|
|
|
if (alignment_ == Qt::AlignTop) {
|
|
// Add empty spacer so we get a splitter handle after the last element
|
|
addWidget(new QWidget());
|
|
}
|
|
|
|
setFixedHeight(initial_height);
|
|
}
|
|
|
|
void TrackViewSplitter::HandleReceiver(TrackViewSplitterHandle *h, int diff)
|
|
{
|
|
int ele_id = -1;
|
|
|
|
for (int i=0;i<count();i++) {
|
|
if (handle(i) == h) {
|
|
ele_id = i;
|
|
break;
|
|
}
|
|
}
|
|
|
|
// The handle index is actually always one above the element index
|
|
if (alignment_ == Qt::AlignTop) {
|
|
ele_id--;
|
|
} else if (alignment_ == Qt::AlignBottom) {
|
|
diff = -diff;
|
|
}
|
|
|
|
QList<int> element_sizes = sizes();
|
|
|
|
int old_ele_sz = element_sizes.at(ele_id);
|
|
|
|
// Transform element size by diff
|
|
int new_ele_sz = old_ele_sz + diff;
|
|
|
|
// Validate it with the widget's minimum size
|
|
new_ele_sz = qMax(new_ele_sz, widget(ele_id)->minimumHeight());
|
|
|
|
// Correct diff
|
|
diff = new_ele_sz - old_ele_sz;
|
|
|
|
// Set new size on element
|
|
element_sizes.replace(ele_id, new_ele_sz);
|
|
setSizes(element_sizes);
|
|
|
|
// Increase height by the difference
|
|
setFixedHeight(height() + diff);
|
|
}
|
|
|
|
QSplitterHandle *TrackViewSplitter::createHandle()
|
|
{
|
|
return new TrackViewSplitterHandle(orientation(), this);
|
|
}
|
|
|
|
TrackViewSplitterHandle::TrackViewSplitterHandle(Qt::Orientation orientation, QSplitter *parent) :
|
|
QSplitterHandle(orientation, parent),
|
|
dragging_(false)
|
|
{
|
|
}
|
|
|
|
void TrackViewSplitterHandle::mousePressEvent(QMouseEvent *)
|
|
{
|
|
}
|
|
|
|
void TrackViewSplitterHandle::mouseMoveEvent(QMouseEvent *)
|
|
{
|
|
if (dragging_) {
|
|
static_cast<TrackViewSplitter*>(parent())->HandleReceiver(this, QCursor::pos().y() - drag_y_);
|
|
}
|
|
|
|
drag_y_ = QCursor::pos().y();
|
|
dragging_ = true;
|
|
}
|
|
|
|
void TrackViewSplitterHandle::mouseReleaseEvent(QMouseEvent *)
|
|
{
|
|
dragging_ = false;
|
|
}
|
|
|
|
void TrackViewSplitterHandle::paintEvent(QPaintEvent *)
|
|
{
|
|
QPainter p(this);
|
|
p.fillRect(rect(), palette().base());
|
|
}
|