Бычков Андрей
ba8bc27298
git-svn-id: svn://db.shs.com.ru/libs@1 a8b55f48-bf90-11e4-a774-851b48703e85
139 lines
3.4 KiB
C++
139 lines
3.4 KiB
C++
#include "historyview.h"
|
|
|
|
|
|
HistoryView::HistoryView(QWidget* parent): QListWidget(parent) {
|
|
setHorizontalScrollMode(QAbstractItemView::ScrollPerPixel);
|
|
setVerticalScrollMode(QAbstractItemView::ScrollPerPixel);
|
|
setSelectionMode(QAbstractItemView::MultiSelection);
|
|
setEditTriggers(NoEditTriggers);
|
|
active_ = true;
|
|
index = 0;
|
|
setLimit(32);
|
|
setHistoryColor(palette().color(QPalette::Highlight));
|
|
connect(this, SIGNAL(itemClicked(QListWidgetItem*)), this, SLOT(itemClicked(QListWidgetItem*)));
|
|
connect(this, SIGNAL(itemSelectionChanged()), this, SLOT(itemSelectionChanged()));
|
|
registerAction(-1, tr("History cleared"), QImage(":/icons/clear-history.png"));
|
|
}
|
|
|
|
|
|
HistoryView::~HistoryView() {
|
|
}
|
|
|
|
|
|
void HistoryView::addEntry(int action, int count_, const QString & suffix) {
|
|
if (!active_) return;
|
|
int cnt = count();
|
|
for (int i = index; i < cnt; ++i)
|
|
if (i >= 0) delete takeItem(index);
|
|
addItem(new QListWidgetItem(actions_.value(action).icon, actionText(action, count_) + suffix));
|
|
index = count();
|
|
history_.resize(index);
|
|
history_.back() = Entry(action);
|
|
checkLimit();
|
|
emit commandRequest(history_.back().command);
|
|
scrollToItem(item(index - 1));
|
|
blockSignals(true);
|
|
for (int i = 0; i < index; ++i)
|
|
item(i)->setSelected(true);
|
|
blockSignals(false);
|
|
emit redoAvailable(false);
|
|
emit undoAvailable((index > 1));
|
|
emit clearAvailable(history_.count() > 1);
|
|
}
|
|
|
|
|
|
void HistoryView::registerAction(int action, const QString & text, const QImage & icon) {
|
|
actions_[action] = HistoryView::Action(action, text, icon);
|
|
}
|
|
|
|
|
|
QString HistoryView::actionText(int action, int count_) {
|
|
return QString(actions_.value(action).text).replace("%count", QString::number(count_));
|
|
}
|
|
|
|
|
|
void HistoryView::checkLimit() {
|
|
if (count() < limit_ + 1) return;
|
|
int c = count() - limit_;
|
|
for (int i = 0; i < c; ++i) {
|
|
if (i >= index - 1) {
|
|
if (count() < 2) break;
|
|
delete takeItem(1);
|
|
history_.remove(1);
|
|
} else {
|
|
if (count() < 1) break;
|
|
delete takeItem(0);
|
|
history_.pop_front();
|
|
index--;
|
|
}
|
|
}
|
|
if (index < 1) index = 1;
|
|
if (index > count()) index = count();
|
|
}
|
|
|
|
|
|
void HistoryView::itemClicked(QListWidgetItem * item) {
|
|
if (!active_) return;
|
|
if (index == row(item) + 1) return;
|
|
index = row(item) + 1;
|
|
//qDebug() << actions[index - 1].command;
|
|
emit commandExecute(history_[index - 1].command);
|
|
itemSelectionChanged();
|
|
}
|
|
|
|
|
|
void HistoryView::itemSelectionChanged() {
|
|
if (!active_) return;
|
|
if (index < 1) index = 1;
|
|
//qDebug() << "changed" << count();
|
|
blockSignals(true);
|
|
for (int i = 0; i < index; ++i)
|
|
item(i)->setSelected(true);
|
|
for (int i = index; i < count(); ++i)
|
|
item(i)->setSelected(false);
|
|
blockSignals(false);
|
|
emit redoAvailable(index < count());
|
|
emit undoAvailable((index > 1));
|
|
}
|
|
|
|
|
|
void HistoryView::setLimit(int l) {
|
|
limit_ = l;
|
|
checkLimit();
|
|
emit redoAvailable(index < count());
|
|
emit undoAvailable((index > 1));
|
|
}
|
|
|
|
|
|
void HistoryView::setHistoryColor(const QColor & c) {
|
|
color_ = c;
|
|
QPalette pal(palette());
|
|
pal.setColor(QPalette::Highlight, color_);
|
|
pal.setColor(QPalette::HighlightedText, pal.color(QPalette::Text));
|
|
setPalette(pal);
|
|
}
|
|
|
|
|
|
void HistoryView::clear(bool silent) {
|
|
history_.clear();
|
|
QListWidget::clear();
|
|
if (!silent) addEntry(-1);
|
|
emit clearAvailable(false);
|
|
}
|
|
|
|
|
|
void HistoryView::undo() {
|
|
if (index <= 1) return;
|
|
index--;
|
|
emit commandExecute(history_[index - 1].command);
|
|
itemSelectionChanged();
|
|
}
|
|
|
|
|
|
void HistoryView::redo() {
|
|
if (index > count()) return;
|
|
index++;
|
|
emit commandExecute(history_[index - 1].command);
|
|
itemSelectionChanged();
|
|
}
|