tdesktop/Telegram/SourceFiles/boxes/photocropbox.cpp

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/*
This file is part of Telegram Desktop,
2014-11-25 20:15:18 +00:00
an official desktop 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://tdesktop.com
*/
#include "stdafx.h"
#include "style.h"
#include "lang.h"
#include "app.h"
#include "application.h"
#include "mainwidget.h"
#include "photocropbox.h"
#include "fileuploader.h"
PhotoCropBox::PhotoCropBox(const QImage &img, const PeerId &peer) : _downState(0),
_sendButton(this, lang(lng_settings_save), st::btnSelectDone),
_cancelButton(this, lang(lng_cancel), st::btnSelectCancel),
_img(img), _peerId(peer), a_opacity(0, 1) {
connect(&_sendButton, SIGNAL(clicked()), this, SLOT(onSend()));
connect(&_cancelButton, SIGNAL(clicked()), this, SLOT(onCancel()));
if (_peerId) {
connect(this, SIGNAL(ready(const QImage &)), this, SLOT(onReady(const QImage &)));
}
int32 s = st::cropBoxWidth - st::boxPadding.left() - st::boxPadding.right();
_thumb = QPixmap::fromImage(img.scaled(s, s, Qt::KeepAspectRatio, Qt::SmoothTransformation));
_thumbw = _thumb.width();
_thumbh = _thumb.height();
if (_thumbw > _thumbh) {
_cropw = _thumbh - 20;
} else {
_cropw = _thumbw - 20;
}
_cropx = (_thumbw - _cropw) / 2;
_cropy = (_thumbh - _cropw) / 2;
_width = st::cropBoxWidth;
_height = _thumbh + st::boxPadding.top() + st::boxFont->height + st::boxPadding.top() + st::boxPadding.bottom() + _sendButton.height();
_thumbx = (_width - _thumbw) / 2;
_thumby = st::boxPadding.top() * 2 + st::boxFont->height;
setMouseTracking(true);
resize(_width, _height);
}
void PhotoCropBox::mousePressEvent(QMouseEvent *e) {
if (e->button() != Qt::LeftButton) return;
_downState = mouseState(e->pos());
_fromposx = e->pos().x();
_fromposy = e->pos().y();
_fromcropx = _cropx;
_fromcropy = _cropy;
_fromcropw = _cropw;
}
int32 PhotoCropBox::mouseState(QPoint p) {
p -= QPoint(_thumbx, _thumby);
int32 delta = st::cropPointSize, mdelta(-delta / 2);
if (QRect(_cropx + mdelta, _cropy + mdelta, delta, delta).contains(p)) {
return 1;
} else if (QRect(_cropx + _cropw + mdelta, _cropy + mdelta, delta, delta).contains(p)) {
return 2;
} else if (QRect(_cropx + _cropw + mdelta, _cropy + _cropw + mdelta, delta, delta).contains(p)) {
return 3;
} else if (QRect(_cropx + mdelta, _cropy + _cropw + mdelta, delta, delta).contains(p)) {
return 4;
} else if (QRect(_cropx, _cropy, _cropw, _cropw).contains(p)) {
return 5;
}
return 0;
}
void PhotoCropBox::mouseReleaseEvent(QMouseEvent *e) {
if (_downState) {
_downState = 0;
mouseMoveEvent(e);
}
}
void PhotoCropBox::mouseMoveEvent(QMouseEvent *e) {
if (_downState && !(e->buttons() & Qt::LeftButton)) {
mouseReleaseEvent(e);
}
if (_downState) {
if (_downState == 1) {
int32 dx = e->pos().x() - _fromposx, dy = e->pos().y() - _fromposy, d = (dx < dy) ? dx : dy;
if (_fromcropx + d < 0) {
d = -_fromcropx;
}
if (_fromcropy + d < 0) {
d = -_fromcropy;
}
if (_fromcropw - d < st::cropMinSize) {
d = _fromcropw - st::cropMinSize;
}
if (_cropx != _fromcropx + d || _cropy != _fromcropy + d || _cropw != _fromcropw - d) {
_cropx = _fromcropx + d;
_cropy = _fromcropy + d;
_cropw = _fromcropw - d;
update();
}
} else if (_downState == 2) {
int32 dx = _fromposx - e->pos().x(), dy = e->pos().y() - _fromposy, d = (dx < dy) ? dx : dy;
if (_fromcropx + _fromcropw - d > _thumbw) {
d = _fromcropx + _fromcropw - _thumbw;
}
if (_fromcropy + d < 0) {
d = -_fromcropy;
}
if (_fromcropw - d < st::cropMinSize) {
d = _fromcropw - st::cropMinSize;
}
if (_cropy != _fromcropy + d || _cropw != _fromcropw - d) {
_cropy = _fromcropy + d;
_cropw = _fromcropw - d;
update();
}
} else if (_downState == 3) {
int32 dx = _fromposx - e->pos().x(), dy = _fromposy - e->pos().y(), d = (dx < dy) ? dx : dy;
if (_fromcropx + _fromcropw - d > _thumbw) {
d = _fromcropx + _fromcropw - _thumbw;
}
if (_fromcropy + _fromcropw - d > _thumbh) {
d = _fromcropy + _fromcropw - _thumbh;
}
if (_fromcropw - d < st::cropMinSize) {
d = _fromcropw - st::cropMinSize;
}
if (_cropw != _fromcropw - d) {
_cropw = _fromcropw - d;
update();
}
} else if (_downState == 4) {
int32 dx = e->pos().x() - _fromposx, dy = _fromposy - e->pos().y(), d = (dx < dy) ? dx : dy;
if (_fromcropx + d < 0) {
d = -_fromcropx;
}
if (_fromcropy + _fromcropw - d > _thumbh) {
d = _fromcropy + _fromcropw - _thumbh;
}
if (_fromcropw - d < st::cropMinSize) {
d = _fromcropw - st::cropMinSize;
}
if (_cropx != _fromcropx + d || _cropw != _fromcropw - d) {
_cropx = _fromcropx + d;
_cropw = _fromcropw - d;
update();
}
} else if (_downState == 5) {
int32 dx = e->pos().x() - _fromposx, dy = e->pos().y() - _fromposy;
if (_fromcropx + dx < 0) {
dx = -_fromcropx;
} else if (_fromcropx + _fromcropw + dx > _thumbw) {
dx = _thumbw - _fromcropx - _fromcropw;
}
if (_fromcropy + dy < 0) {
dy = -_fromcropy;
} else if (_fromcropy + _fromcropw + dy > _thumbh) {
dy = _thumbh - _fromcropy - _fromcropw;
}
if (_cropx != _fromcropx + dx || _cropy != _fromcropy + dy) {
_cropx = _fromcropx + dx;
_cropy = _fromcropy + dy;
update();
}
}
}
int32 cursorState = _downState ? _downState : mouseState(e->pos());
QCursor cur(style::cur_default);
if (cursorState == 1 || cursorState == 3) {
cur = style::cur_sizefdiag;
} else if (cursorState == 2 || cursorState == 4) {
cur = style::cur_sizebdiag;
} else if (cursorState == 5) {
cur = style::cur_sizeall;
}
setCursor(cur);
}
void PhotoCropBox::keyPressEvent(QKeyEvent *e) {
if (e->key() == Qt::Key_Enter || e->key() == Qt::Key_Return) {
onSend();
} else if (e->key() == Qt::Key_Escape) {
onCancel();
}
}
void PhotoCropBox::parentResized() {
QSize s = parentWidget()->size();
setGeometry((s.width() - _width) / 2, (s.height() - _height) / 2, _width, _height);
_sendButton.move(_width - _sendButton.width(), _height - _sendButton.height());
_cancelButton.move(0, _height - _cancelButton.height());
update();
}
void PhotoCropBox::paintEvent(QPaintEvent *e) {
QPainter p(this);
p.setOpacity(a_opacity.current());
// fill bg
p.fillRect(QRect(QPoint(0, 0), size()), st::boxBG->b);
// paint shadows
p.fillRect(0, _height - st::btnSelectCancel.height - st::scrollDef.bottomsh, _width, st::scrollDef.bottomsh, st::scrollDef.shColor->b);
// paint button sep
p.fillRect(st::btnSelectCancel.width, _height - st::btnSelectCancel.height, st::lineWidth, st::btnSelectCancel.height, st::btnSelectSep->b);
p.setFont(st::boxFont->f);
p.setPen(st::boxGrayTitle->p);
p.drawText(QRect(st::boxPadding.left(), st::boxPadding.top(), _width - st::boxPadding.left() - st::boxPadding.right(), st::boxFont->height), lang(lng_settings_crop_profile), style::al_center);
p.translate(_thumbx, _thumby);
p.drawPixmap(0, 0, _thumb);
p.setOpacity(a_opacity.current() * 0.5);
if (_cropy > 0) {
p.fillRect(QRect(0, 0, _cropx + _cropw, _cropy), st::black->b);
}
if (_cropx + _cropw < _thumbw) {
p.fillRect(QRect(_cropx + _cropw, 0, _thumbw - _cropx - _cropw, _cropy + _cropw), st::black->b);
}
if (_cropy + _cropw < _thumbh) {
p.fillRect(QRect(_cropx, _cropy + _cropw, _thumbw - _cropx, _thumbh - _cropy - _cropw), st::black->b);
}
if (_cropx > 0) {
p.fillRect(QRect(0, _cropy, _cropx, _thumbh - _cropy), st::black->b);
}
int32 delta = st::cropPointSize, mdelta(-delta / 2);
p.fillRect(QRect(_cropx + mdelta, _cropy + mdelta, delta, delta), st::white->b);
p.fillRect(QRect(_cropx + _cropw + mdelta, _cropy + mdelta, delta, delta), st::white->b);
p.fillRect(QRect(_cropx + _cropw + mdelta, _cropy + _cropw + mdelta, delta, delta), st::white->b);
p.fillRect(QRect(_cropx + mdelta, _cropy + _cropw + mdelta, delta, delta), st::white->b);
}
void PhotoCropBox::animStep(float64 ms) {
if (ms >= 1) {
a_opacity.finish();
} else {
a_opacity.update(ms, anim::linear);
}
_sendButton.setOpacity(a_opacity.current());
_cancelButton.setOpacity(a_opacity.current());
update();
}
void PhotoCropBox::onSend() {
QImage from(_img);
if (_img.width() < _thumb.width()) {
from = _thumb.toImage();
}
float64 x = float64(_cropx) / _thumbw, y = float64(_cropy) / _thumbh, w = float64(_cropw) / _thumbw;
int32 ix = int32(x * from.width()), iy = int32(y * from.height()), iw = int32(w * from.width());
if (ix < 0) {
ix = 0;
}
if (ix + iw > from.width()) {
iw = from.width() - ix;
}
if (iy < 0) {
iy = 0;
}
if (iy + iw > from.height()) {
iw = from.height() - iy;
}
int32 offset = ix * from.depth() / 8 + iy * from.bytesPerLine();
QImage cropped(from.bits() + offset, iw, iw, from.bytesPerLine(), from.format()), tosend;
if (cropped.width() > 1280) {
tosend = cropped.scaled(1280, 1280, Qt::KeepAspectRatio, Qt::SmoothTransformation);
} else if (cropped.width() < 320) {
tosend = cropped.scaled(320, 320, Qt::KeepAspectRatio, Qt::SmoothTransformation);
} else {
tosend = cropped.copy();
}
emit ready(tosend);
}
void PhotoCropBox::onReady(const QImage &tosend) {
App::app()->uploadProfilePhoto(tosend, _peerId);
emit closed();
}
void PhotoCropBox::onCancel() {
emit closed();
}
void PhotoCropBox::startHide() {
_hiding = true;
a_opacity.start(0);
}
PhotoCropBox::~PhotoCropBox() {
}