268 lines
8.2 KiB
C++
268 lines
8.2 KiB
C++
/*
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This file is part of Telegram Desktop,
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the official desktop application for the Telegram messaging service.
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For license and copyright information please follow this link:
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https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
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*/
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#include "boxes/photo_crop_box.h"
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#include "lang/lang_keys.h"
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#include "ui/widgets/buttons.h"
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#include "styles/style_boxes.h"
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PhotoCropBox::PhotoCropBox(
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QWidget*,
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const QImage &img,
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const QString &title)
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: _title(title)
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, _img(img) {
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}
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void PhotoCropBox::prepare() {
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addButton(langFactory(lng_settings_save), [this] { sendPhoto(); });
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addButton(langFactory(lng_cancel), [this] { closeBox(); });
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int32 s = st::boxWideWidth - st::boxPhotoPadding.left() - st::boxPhotoPadding.right();
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_thumb = App::pixmapFromImageInPlace(_img.scaled(s * cIntRetinaFactor(), s * cIntRetinaFactor(), Qt::KeepAspectRatio, Qt::SmoothTransformation));
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_thumb.setDevicePixelRatio(cRetinaFactor());
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_mask = QImage(_thumb.size(), QImage::Format_ARGB32_Premultiplied);
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_mask.setDevicePixelRatio(cRetinaFactor());
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_fade = QImage(_thumb.size(), QImage::Format_ARGB32_Premultiplied);
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_fade.setDevicePixelRatio(cRetinaFactor());
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_thumbw = _thumb.width() / cIntRetinaFactor();
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_thumbh = _thumb.height() / cIntRetinaFactor();
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if (_thumbw > _thumbh) {
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_cropw = _thumbh - 20;
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} else {
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_cropw = _thumbw - 20;
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}
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_cropx = (_thumbw - _cropw) / 2;
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_cropy = (_thumbh - _cropw) / 2;
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_thumbx = (st::boxWideWidth - _thumbw) / 2;
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_thumby = st::boxPhotoPadding.top();
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setMouseTracking(true);
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setDimensions(st::boxWideWidth, st::boxPhotoPadding.top() + _thumbh + st::boxPhotoPadding.bottom() + st::boxTextFont->height + st::cropSkip);
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}
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void PhotoCropBox::mousePressEvent(QMouseEvent *e) {
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if (e->button() == Qt::LeftButton) {
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_downState = mouseState(e->pos());
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_fromposx = e->pos().x();
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_fromposy = e->pos().y();
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_fromcropx = _cropx;
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_fromcropy = _cropy;
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_fromcropw = _cropw;
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}
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return BoxContent::mousePressEvent(e);
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}
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int PhotoCropBox::mouseState(QPoint p) {
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p -= QPoint(_thumbx, _thumby);
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int32 delta = st::cropPointSize, mdelta(-delta / 2);
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if (QRect(_cropx + mdelta, _cropy + mdelta, delta, delta).contains(p)) {
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return 1;
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} else if (QRect(_cropx + _cropw + mdelta, _cropy + mdelta, delta, delta).contains(p)) {
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return 2;
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} else if (QRect(_cropx + _cropw + mdelta, _cropy + _cropw + mdelta, delta, delta).contains(p)) {
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return 3;
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} else if (QRect(_cropx + mdelta, _cropy + _cropw + mdelta, delta, delta).contains(p)) {
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return 4;
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} else if (QRect(_cropx, _cropy, _cropw, _cropw).contains(p)) {
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return 5;
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}
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return 0;
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}
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rpl::producer<QImage> PhotoCropBox::ready() const {
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return _readyImages.events();
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}
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void PhotoCropBox::mouseReleaseEvent(QMouseEvent *e) {
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if (_downState) {
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_downState = 0;
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mouseMoveEvent(e);
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}
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}
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void PhotoCropBox::mouseMoveEvent(QMouseEvent *e) {
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if (_downState && !(e->buttons() & Qt::LeftButton)) {
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mouseReleaseEvent(e);
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}
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if (_downState) {
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if (_downState == 1) {
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int32 dx = e->pos().x() - _fromposx, dy = e->pos().y() - _fromposy, d = (dx < dy) ? dx : dy;
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if (_fromcropx + d < 0) {
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d = -_fromcropx;
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}
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if (_fromcropy + d < 0) {
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d = -_fromcropy;
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}
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if (_fromcropw - d < st::cropMinSize) {
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d = _fromcropw - st::cropMinSize;
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}
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if (_cropx != _fromcropx + d || _cropy != _fromcropy + d || _cropw != _fromcropw - d) {
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_cropx = _fromcropx + d;
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_cropy = _fromcropy + d;
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_cropw = _fromcropw - d;
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update();
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}
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} else if (_downState == 2) {
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int32 dx = _fromposx - e->pos().x(), dy = e->pos().y() - _fromposy, d = (dx < dy) ? dx : dy;
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if (_fromcropx + _fromcropw - d > _thumbw) {
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d = _fromcropx + _fromcropw - _thumbw;
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}
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if (_fromcropy + d < 0) {
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d = -_fromcropy;
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}
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if (_fromcropw - d < st::cropMinSize) {
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d = _fromcropw - st::cropMinSize;
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}
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if (_cropy != _fromcropy + d || _cropw != _fromcropw - d) {
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_cropy = _fromcropy + d;
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_cropw = _fromcropw - d;
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update();
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}
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} else if (_downState == 3) {
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int32 dx = _fromposx - e->pos().x(), dy = _fromposy - e->pos().y(), d = (dx < dy) ? dx : dy;
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if (_fromcropx + _fromcropw - d > _thumbw) {
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d = _fromcropx + _fromcropw - _thumbw;
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}
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if (_fromcropy + _fromcropw - d > _thumbh) {
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d = _fromcropy + _fromcropw - _thumbh;
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}
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if (_fromcropw - d < st::cropMinSize) {
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d = _fromcropw - st::cropMinSize;
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}
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if (_cropw != _fromcropw - d) {
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_cropw = _fromcropw - d;
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update();
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}
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} else if (_downState == 4) {
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int32 dx = e->pos().x() - _fromposx, dy = _fromposy - e->pos().y(), d = (dx < dy) ? dx : dy;
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if (_fromcropx + d < 0) {
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d = -_fromcropx;
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}
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if (_fromcropy + _fromcropw - d > _thumbh) {
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d = _fromcropy + _fromcropw - _thumbh;
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}
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if (_fromcropw - d < st::cropMinSize) {
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d = _fromcropw - st::cropMinSize;
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}
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if (_cropx != _fromcropx + d || _cropw != _fromcropw - d) {
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_cropx = _fromcropx + d;
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_cropw = _fromcropw - d;
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update();
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}
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} else if (_downState == 5) {
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int32 dx = e->pos().x() - _fromposx, dy = e->pos().y() - _fromposy;
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if (_fromcropx + dx < 0) {
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dx = -_fromcropx;
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} else if (_fromcropx + _fromcropw + dx > _thumbw) {
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dx = _thumbw - _fromcropx - _fromcropw;
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}
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if (_fromcropy + dy < 0) {
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dy = -_fromcropy;
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} else if (_fromcropy + _fromcropw + dy > _thumbh) {
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dy = _thumbh - _fromcropy - _fromcropw;
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}
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if (_cropx != _fromcropx + dx || _cropy != _fromcropy + dy) {
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_cropx = _fromcropx + dx;
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_cropy = _fromcropy + dy;
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update();
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}
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}
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}
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int32 cursorState = _downState ? _downState : mouseState(e->pos());
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QCursor cur(style::cur_default);
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if (cursorState == 1 || cursorState == 3) {
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cur = style::cur_sizefdiag;
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} else if (cursorState == 2 || cursorState == 4) {
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cur = style::cur_sizebdiag;
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} else if (cursorState == 5) {
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cur = style::cur_sizeall;
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}
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setCursor(cur);
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}
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void PhotoCropBox::keyPressEvent(QKeyEvent *e) {
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if (e->key() == Qt::Key_Enter || e->key() == Qt::Key_Return) {
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sendPhoto();
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} else {
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BoxContent::keyPressEvent(e);
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}
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}
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void PhotoCropBox::paintEvent(QPaintEvent *e) {
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BoxContent::paintEvent(e);
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Painter p(this);
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p.setFont(st::boxTextFont);
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p.setPen(st::boxPhotoTextFg);
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p.drawText(QRect(st::boxPhotoPadding.left(), st::boxPhotoPadding.top() + _thumbh + st::boxPhotoPadding.bottom(), width() - st::boxPhotoPadding.left() - st::boxPhotoPadding.right(), st::boxTextFont->height), _title, style::al_top);
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p.translate(_thumbx, _thumby);
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p.drawPixmap(0, 0, _thumb);
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_mask.fill(Qt::white);
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{
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Painter p(&_mask);
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PainterHighQualityEnabler hq(p);
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p.setPen(Qt::NoPen);
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p.setBrush(Qt::black);
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p.drawEllipse(_cropx, _cropy, _cropw, _cropw);
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}
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style::colorizeImage(_mask, st::photoCropFadeBg->c, &_fade);
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p.drawImage(0, 0, _fade);
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int delta = st::cropPointSize;
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int mdelta = -delta / 2;
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p.fillRect(QRect(_cropx + mdelta, _cropy + mdelta, delta, delta), st::photoCropPointFg);
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p.fillRect(QRect(_cropx + _cropw + mdelta, _cropy + mdelta, delta, delta), st::photoCropPointFg);
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p.fillRect(QRect(_cropx + _cropw + mdelta, _cropy + _cropw + mdelta, delta, delta), st::photoCropPointFg);
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p.fillRect(QRect(_cropx + mdelta, _cropy + _cropw + mdelta, delta, delta), st::photoCropPointFg);
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}
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void PhotoCropBox::sendPhoto() {
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auto from = _img;
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if (_img.width() < _thumb.width()) {
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from = _thumb.toImage();
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}
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float64 x = float64(_cropx) / _thumbw, y = float64(_cropy) / _thumbh, w = float64(_cropw) / _thumbw;
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int32 ix = int32(x * from.width()), iy = int32(y * from.height()), iw = int32(w * from.width());
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if (ix < 0) {
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ix = 0;
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}
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if (ix + iw > from.width()) {
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iw = from.width() - ix;
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}
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if (iy < 0) {
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iy = 0;
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}
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if (iy + iw > from.height()) {
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iw = from.height() - iy;
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}
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int32 offset = ix * from.depth() / 8 + iy * from.bytesPerLine();
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QImage cropped(from.constBits() + offset, iw, iw, from.bytesPerLine(), from.format()), tosend;
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if (from.format() == QImage::Format_Indexed8) {
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cropped.setColorCount(from.colorCount());
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cropped.setColorTable(from.colorTable());
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}
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if (cropped.width() > 1280) {
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tosend = cropped.scaled(1280, 1280, Qt::KeepAspectRatio, Qt::SmoothTransformation);
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} else if (cropped.width() < 320) {
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tosend = cropped.scaled(320, 320, Qt::KeepAspectRatio, Qt::SmoothTransformation);
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} else {
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tosend = cropped.copy();
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}
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auto weak = make_weak(this);
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_readyImages.fire(std::move(tosend));
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if (weak) {
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closeBox();
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}
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}
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