tdesktop/Telegram/SourceFiles/layerwidget.cpp

152 lines
3.6 KiB
C++

/*
This file is part of Telegram Desktop,
the official desktop version of Telegram messaging app, see https://telegram.org
Telegram Desktop is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
It is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
Full license: https://github.com/telegramdesktop/tdesktop/blob/master/LICENSE
Copyright (c) 2014 John Preston, https://desktop.telegram.org
*/
#include "stdafx.h"
#include "lang.h"
#include "layerwidget.h"
#include "application.h"
#include "window.h"
#include "mainwidget.h"
#include "gui/filedialog.h"
BackgroundWidget::BackgroundWidget(QWidget *parent, LayeredWidget *w) : QWidget(parent), w(w), _hidden(0),
aBackground(0), aBackgroundFunc(anim::easeOutCirc), hiding(false), shadow(st::boxShadow) {
w->setParent(this);
setGeometry(0, 0, App::wnd()->width(), App::wnd()->height());
aBackground.start(1);
anim::start(this);
show();
connect(w, SIGNAL(closed()), this, SLOT(onInnerClose()));
connect(w, SIGNAL(resized()), this, SLOT(update()));
connect(w, SIGNAL(destroyed(QObject*)), this, SLOT(boxDestroyed(QObject*)));
w->setFocus();
}
void BackgroundWidget::showFast() {
animStep(st::layerSlideDuration + 1);
update();
}
void BackgroundWidget::paintEvent(QPaintEvent *e) {
if (!w) return;
bool trivial = (rect() == e->rect());
QPainter p(this);
if (!trivial) {
p.setClipRect(e->rect());
}
p.setOpacity(st::layerAlpha * aBackground.current());
p.fillRect(rect(), st::layerBG->b);
p.setOpacity(aBackground.current());
shadow.paint(p, w->boxRect(), st::boxShadowShift);
}
void BackgroundWidget::keyPressEvent(QKeyEvent *e) {
if (e->key() == Qt::Key_Escape) {
startHide();
}
}
void BackgroundWidget::mousePressEvent(QMouseEvent *e) {
onClose();
}
void BackgroundWidget::onClose() {
startHide();
}
bool BackgroundWidget::onInnerClose() {
if (!_hidden) {
onClose();
return true;
}
w->deleteLater();
w = _hidden;
_hidden = 0;
w->show();
resizeEvent(0);
w->animStep(1);
update();
return false;
}
void BackgroundWidget::startHide() {
if (App::main()) App::main()->setInnerFocus();
hiding = true;
aBackground.start(0);
anim::start(this);
w->startHide();
}
void BackgroundWidget::resizeEvent(QResizeEvent *e) {
w->parentResized();
}
void BackgroundWidget::updateWideMode() {
}
void BackgroundWidget::replaceInner(LayeredWidget *n) {
if (_hidden) _hidden->deleteLater();
_hidden = w;
_hidden->hide();
w = n;
w->setParent(this);
connect(w, SIGNAL(closed()), this, SLOT(onInnerClose()));
connect(w, SIGNAL(resized()), this, SLOT(update()));
connect(w, SIGNAL(destroyed(QObject*)), this, SLOT(boxDestroyed(QObject*)));
w->show();
resizeEvent(0);
w->animStep(1);
update();
}
bool BackgroundWidget::animStep(float64 ms) {
float64 dt = ms / (hiding ? st::layerHideDuration : st::layerSlideDuration);
w->animStep(dt);
bool res = true;
if (dt >= 1) {
aBackground.finish();
if (hiding) {
App::wnd()->layerFinishedHide(this);
}
anim::stop(this);
res = false;
} else {
aBackground.update(dt, aBackgroundFunc);
}
update();
return res;
}
void BackgroundWidget::boxDestroyed(QObject *obj) {
if (obj == w) {
if (App::wnd()) App::wnd()->layerFinishedHide(this);
w = 0;
} else if (_hidden == obj) {
_hidden = 0;
}
}
BackgroundWidget::~BackgroundWidget() {
if (App::wnd()) App::wnd()->noBox(this);
w->deleteLater();
if (_hidden) _hidden->deleteLater();
}