tdesktop/Telegram/SourceFiles/layerwidget.cpp

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/*
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.
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In addition, as a special exception, the copyright holders give permission
to link the code of portions of this program with the OpenSSL library.
Full license: https://github.com/telegramdesktop/tdesktop/blob/master/LICENSE
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Copyright (c) 2014-2015 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"
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BackgroundWidget::BackgroundWidget(QWidget *parent, LayeredWidget *w) : TWidget(parent)
, w(w)
, aBackground(0)
, aBackgroundFunc(anim::easeOutCirc)
, hiding(false)
, shadow(st::boxShadow) {
w->setParent(this);
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if (App::app()) App::app()->mtpPause();
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());
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p.fillRect(rect(), st::layerBg->b);
p.setOpacity(aBackground.current());
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shadow.paint(p, w->geometry(), st::boxShadowShift);
}
void BackgroundWidget::keyPressEvent(QKeyEvent *e) {
if (e->key() == Qt::Key_Escape) {
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onClose();
}
}
void BackgroundWidget::mousePressEvent(QMouseEvent *e) {
onClose();
}
void BackgroundWidget::onClose() {
startHide();
}
bool BackgroundWidget::onInnerClose() {
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if (_hidden.isEmpty()) {
onClose();
return true;
}
w->hide();
w->deleteLater();
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w = _hidden.back();
_hidden.pop_back();
w->show();
resizeEvent(0);
w->animStep(1);
update();
return false;
}
void BackgroundWidget::startHide() {
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if (hiding) return;
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if (App::app()) App::app()->mtpPause();
hiding = true;
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if (App::wnd()) App::wnd()->setInnerFocus();
aBackground.start(0);
anim::start(this);
w->startHide();
}
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bool BackgroundWidget::canSetFocus() const {
return w && !hiding;
}
void BackgroundWidget::setInnerFocus() {
if (w) {
w->setInnerFocus();
}
}
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bool BackgroundWidget::contentOverlapped(const QRect &globalRect) {
if (isHidden()) return false;
return w && w->overlaps(globalRect);
}
void BackgroundWidget::resizeEvent(QResizeEvent *e) {
w->parentResized();
}
void BackgroundWidget::updateWideMode() {
}
void BackgroundWidget::replaceInner(LayeredWidget *n) {
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_hidden.push_back(w);
w->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();
}
void BackgroundWidget::showLayerLast(LayeredWidget *n) {
_hidden.push_front(n);
n->setParent(this);
connect(n, SIGNAL(closed()), this, SLOT(onInnerClose()));
connect(n, SIGNAL(resized()), this, SLOT(update()));
connect(n, SIGNAL(destroyed(QObject*)), this, SLOT(boxDestroyed(QObject*)));
n->parentResized();
n->animStep(1);
n->hide();
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;
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if (App::app()) App::app()->mtpUnpause();
} 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;
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} else {
int32 index = _hidden.indexOf(static_cast<LayeredWidget*>(obj));
if (index >= 0) {
_hidden.removeAt(index);
}
}
}
BackgroundWidget::~BackgroundWidget() {
if (App::wnd()) App::wnd()->noBox(this);
w->deleteLater();
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for (HiddenLayers::const_iterator i = _hidden.cbegin(), e = _hidden.cend(); i != e; ++i) {
(*i)->deleteLater();
}
}
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StickerPreviewWidget::StickerPreviewWidget(QWidget *parent) : TWidget(parent)
, a_shown(0, 0)
, _a_shown(animFunc(this, &StickerPreviewWidget::animStep_shown))
, _doc(0)
, _cacheStatus(CacheNotLoaded) {
setAttribute(Qt::WA_TransparentForMouseEvents);
}
void StickerPreviewWidget::paintEvent(QPaintEvent *e) {
Painter p(this);
QRect r(e->rect());
const QPixmap &draw(currentImage());
uint32 w = draw.width() / cIntRetinaFactor(), h = draw.height() / cIntRetinaFactor();
if (_a_shown.animating()) {
float64 shown = a_shown.current();
p.setOpacity(shown);
// w = qMax(qRound(w * (st::stickerPreviewMin + ((1. - st::stickerPreviewMin) * shown)) / 2.) * 2 + int(w % 2), 1);
// h = qMax(qRound(h * (st::stickerPreviewMin + ((1. - st::stickerPreviewMin) * shown)) / 2.) * 2 + int(h % 2), 1);
}
p.fillRect(r, st::stickerPreviewBg);
p.drawPixmap((width() - w) / 2, (height() - h) / 2, draw);
}
void StickerPreviewWidget::resizeEvent(QResizeEvent *e) {
update();
}
bool StickerPreviewWidget::animStep_shown(float64 ms) {
float64 dt = ms / st::stickerPreviewDuration;
if (dt >= 1) {
a_shown.finish();
_a_shown.stop();
if (a_shown.current() < 0.5) hide();
} else {
a_shown.update(dt, anim::linear);
}
update();
return true;
}
void StickerPreviewWidget::showPreview(DocumentData *sticker) {
if (sticker && !sticker->sticker()) sticker = 0;
if (sticker) {
_cache = QPixmap();
if (isHidden() || _a_shown.animating()) {
if (isHidden()) show();
a_shown.start(1);
_a_shown.start();
} else {
update();
}
} else if (isHidden()) {
return;
} else {
a_shown.start(0);
_a_shown.start();
}
_doc = sticker;
_cacheStatus = CacheNotLoaded;
}
void StickerPreviewWidget::hidePreview() {
showPreview(0);
}
QSize StickerPreviewWidget::currentDimensions() const {
if (!_doc) return QSize(_cache.width() / cIntRetinaFactor(), _cache.height() / cIntRetinaFactor());
QSize result(qMax(_doc->dimensions.width(), 1), qMax(_doc->dimensions.height(), 1));
if (result.width() > st::maxStickerSize) {
result.setHeight(qMax(qRound((st::maxStickerSize * result.height()) / result.width()), 1));
result.setWidth(st::maxStickerSize);
}
if (result.height() > st::maxStickerSize) {
result.setWidth(qMax(qRound((st::maxStickerSize * result.width()) / result.height()), 1));
result.setHeight(st::maxStickerSize);
}
return result;
}
QPixmap StickerPreviewWidget::currentImage() const {
if (_doc && _cacheStatus != CacheLoaded) {
bool already = !_doc->already().isEmpty(), hasdata = !_doc->data.isEmpty();
if (!_doc->loader && _doc->status != FileFailed && !already && !hasdata) {
_doc->save(QString());
}
if (_doc->sticker()->img->isNull() && (already || hasdata)) {
if (already) {
_doc->sticker()->img = ImagePtr(_doc->already());
} else {
_doc->sticker()->img = ImagePtr(_doc->data);
}
}
if (_doc->sticker()->img->isNull()) {
if (_cacheStatus != CacheThumbLoaded) {
QSize s = currentDimensions();
_cache = _doc->thumb->pixBlurred(s.width(), s.height());
_cacheStatus = CacheThumbLoaded;
}
} else {
QSize s = currentDimensions();
_cache = _doc->sticker()->img->pix(s.width(), s.height());
_cacheStatus = CacheLoaded;
}
}
return _cache;
}
StickerPreviewWidget::~StickerPreviewWidget() {
}