Clementine-audio-player-Mac.../src/playlistheader.cpp

98 lines
2.4 KiB
C++

#include "playlistheader.h"
#include <QtDebug>
#include <QContextMenuEvent>
#include <QMenu>
#include <QSignalMapper>
PlaylistHeader::PlaylistHeader(Qt::Orientation orientation, QWidget* parent)
: QHeaderView(orientation, parent),
menu_(new QMenu(this)),
show_menu_(new QMenu(this)),
show_mapper_(new QSignalMapper(this))
{
hide_action_ = menu_->addAction("Hide...", this, SLOT(HideCurrent()));
QAction* show_action = menu_->addAction("Show section");
show_action->setMenu(show_menu_);
connect(show_mapper_, SIGNAL(mapped(int)), SLOT(ToggleVisible(int)));
connect(this, SIGNAL(sectionMoved(int,int,int)), SLOT(SectionMoved()));
}
void PlaylistHeader::contextMenuEvent(QContextMenuEvent* e) {
menu_section_ = logicalIndexAt(e->pos());
if (menu_section_ == -1 || (
menu_section_ == logicalIndex(0) && logicalIndex(1) == -1))
hide_action_->setVisible(false);
else {
hide_action_->setVisible(true);
QString title(model()->headerData(menu_section_, Qt::Horizontal).toString());
hide_action_->setText("Hide " + title);
}
show_menu_->clear();
for (int i=0 ; i<count() ; ++i) {
AddColumnAction(i);
}
menu_->popup(e->globalPos());
}
void PlaylistHeader::AddColumnAction(int index) {
QString title(model()->headerData(index, Qt::Horizontal).toString());
QAction* action = show_menu_->addAction(title, show_mapper_, SLOT(map()));
action->setCheckable(true);
action->setChecked(!isSectionHidden(index));
show_mapper_->setMapping(action, index);
}
void PlaylistHeader::HideCurrent() {
if (menu_section_ == -1)
return;
setSectionHidden(menu_section_, true);
}
void PlaylistHeader::ToggleVisible(int section) {
setSectionHidden(section, !isSectionHidden(section));
}
void PlaylistHeader::resizeEvent(QResizeEvent *event) {
if (!event->oldSize().isValid())
return;
const float scale = float(event->size().width()) / event->oldSize().width();
for (int i=0 ; i<count() ; ++i) {
resizeSection(i, sectionSize(i) * scale);
}
}
void PlaylistHeader::SectionMoved() {
for (int i=0 ; i<count() ; ++i) {
setResizeMode(i, Interactive);
if (sectionSize(i) < 20)
resizeSection(i, 50);
}
setResizeMode(logicalIndex(LastVisualIndex()), Stretch);
}
int PlaylistHeader::LastVisualIndex() const {
int ret = -1;
for (int i=0 ; i<count() ; ++i) {
if (isSectionHidden(i))
continue;
ret = qMax(visualIndex(i), ret);
}
return ret;
}