tdesktop/Telegram/SourceFiles/editor/photo_editor_controls.cpp

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/*
This file is part of Telegram Desktop,
the official desktop application for the Telegram messaging service.
For license and copyright information please follow this link:
https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
*/
#include "editor/photo_editor_controls.h"
#include "editor/controllers/controllers.h"
#include "lang/lang_keys.h"
#include "ui/image/image_prepare.h"
#include "ui/widgets/buttons.h"
#include "styles/style_editor.h"
namespace Editor {
class EdgeButton final : public Ui::RippleButton {
public:
EdgeButton(
not_null<Ui::RpWidget*> parent,
const QString &text,
int height,
bool left,
const style::color &bg,
const style::color &fg,
const style::RippleAnimation &st);
protected:
QImage prepareRippleMask() const override;
QPoint prepareRippleStartPosition() const override;
private:
void init();
const style::color &_fg;
Ui::Text::String _text;
const int _width;
const QRect _rippleRect;
const QColor _bg;
const bool _left;
QImage rounded(std::optional<QColor> color) const;
};
EdgeButton::EdgeButton(
not_null<Ui::RpWidget*> parent,
const QString &text,
int height,
bool left,
const style::color &bg,
const style::color &fg,
const style::RippleAnimation &st)
: Ui::RippleButton(parent, st)
, _fg(fg)
, _text(st::semiboldTextStyle, text.toUpper())
, _width(_text.maxWidth()
+ st::photoEditorTextButtonPadding.left()
+ st::photoEditorTextButtonPadding.right())
, _rippleRect(QRect(0, 0, _width, height))
, _bg(bg->c)
, _left(left) {
resize(_width, height);
init();
}
void EdgeButton::init() {
const auto bg = rounded(_bg);
paintRequest(
) | rpl::start_with_next([=] {
Painter p(this);
p.drawImage(QPoint(), bg);
paintRipple(p, _rippleRect.x(), _rippleRect.y());
p.setPen(_fg);
const auto textTop = (height() - _text.minHeight()) / 2;
_text.draw(p, 0, textTop, width(), style::al_center);
}, lifetime());
}
QImage EdgeButton::rounded(std::optional<QColor> color) const {
auto result = QImage(
_rippleRect.size() * cIntRetinaFactor(),
QImage::Format_ARGB32_Premultiplied);
result.setDevicePixelRatio(cIntRetinaFactor());
result.fill(color.value_or(Qt::white));
using Option = Images::Option;
const auto options = Option::Smooth
| Option::RoundedLarge
| (_left ? Option::RoundedTopLeft : Option::RoundedTopRight)
| (_left ? Option::RoundedBottomLeft : Option::RoundedBottomRight);
return Images::prepare(std::move(result), 0, 0, options, 0, 0);
}
QImage EdgeButton::prepareRippleMask() const {
return rounded(std::nullopt);
}
QPoint EdgeButton::prepareRippleStartPosition() const {
return mapFromGlobal(QCursor::pos()) - _rippleRect.topLeft();
}
class HorizontalContainer final : public Ui::RpWidget {
public:
HorizontalContainer(not_null<Ui::RpWidget*> parent);
void updateChildrenPosition();
};
HorizontalContainer::HorizontalContainer(not_null<Ui::RpWidget*> parent)
: RpWidget(parent) {
}
void HorizontalContainer::updateChildrenPosition() {
auto left = 0;
auto height = 0;
for (auto child : RpWidget::children()) {
if (child->isWidgetType()) {
const auto widget = static_cast<QWidget*>(child);
widget->move(left, 0);
left += widget->width();
height = std::max(height, widget->height());
}
}
resize(left, height);
}
PhotoEditorControls::PhotoEditorControls(
not_null<Ui::RpWidget*> parent,
std::shared_ptr<Controllers> controllers,
const PhotoModifications modifications,
bool doneControls)
: RpWidget(parent)
, _bg(st::mediaviewSaveMsgBg)
, _transformButtons(base::make_unique_q<HorizontalContainer>(this))
, _paintButtons(base::make_unique_q<HorizontalContainer>(this))
, _rotateButton(base::make_unique_q<Ui::IconButton>(
_transformButtons,
st::photoEditorRotateButton))
, _flipButton(base::make_unique_q<Ui::IconButton>(
_transformButtons,
st::photoEditorFlipButton))
, _paintModeButton(base::make_unique_q<Ui::IconButton>(
_transformButtons,
st::photoEditorPaintModeButton))
, _undoButton(base::make_unique_q<Ui::IconButton>(
_paintButtons,
st::photoEditorUndoButton))
, _redoButton(base::make_unique_q<Ui::IconButton>(
_paintButtons,
st::photoEditorRedoButton))
, _paintModeButtonActive(base::make_unique_q<Ui::IconButton>(
_paintButtons,
st::photoEditorPaintModeButton))
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, _stickersButton(controllers->stickersPanelController
? base::make_unique_q<Ui::IconButton>(
_paintButtons,
st::photoEditorStickersButton)
: nullptr)
, _cancel(base::make_unique_q<EdgeButton>(
this,
tr::lng_cancel(tr::now),
_flipButton->height(),
true,
_bg,
st::activeButtonFg,
st::photoEditorRotateButton.ripple))
, _done(base::make_unique_q<EdgeButton>(
this,
tr::lng_box_done(tr::now),
_flipButton->height(),
false,
_bg,
st::lightButtonFg,
st::photoEditorRotateButton.ripple))
, _flipped(modifications.flipped) {
_transformButtons->updateChildrenPosition();
_paintButtons->updateChildrenPosition();
_paintModeButtonActive->setIconOverride(
&st::photoEditorPaintModeButton.iconOver);
_paintModeButtonActive->setAttribute(Qt::WA_TransparentForMouseEvents);
paintRequest(
) | rpl::start_with_next([=](const QRect &clip) {
Painter p(this);
const auto &current = _transformButtons->isHidden()
? _paintButtons
: _transformButtons;
p.setPen(Qt::NoPen);
p.setBrush(_bg);
p.drawRect(current->geometry());
}, lifetime());
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const auto &buttonsTop = st::photoEditorControlsTopSkip;
rpl::combine(
sizeValue(),
_mode.value()
) | rpl::start_with_next([=](
const QSize &size,
const PhotoEditorMode &mode) {
if (size.isEmpty()) {
return;
}
const auto &current = _transformButtons->isHidden()
? _paintButtons
: _transformButtons;
current->moveToLeft(
(size.width() - current->width()) / 2,
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buttonsTop);
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_cancel->moveToLeft(current->x() - _cancel->width(), buttonsTop);
_done->moveToLeft(current->x() + current->width(), buttonsTop);
}, lifetime());
controllers->undoController->setPerformRequestChanges(rpl::merge(
_undoButton->clicks() | rpl::map_to(Undo::Undo),
_redoButton->clicks() | rpl::map_to(Undo::Redo)));
controllers->undoController->canPerformChanges(
) | rpl::start_with_next([=](const UndoController::EnableRequest &r) {
const auto isUndo = (r.command == Undo::Undo);
const auto &button = isUndo ? _undoButton : _redoButton;
button->setAttribute(Qt::WA_TransparentForMouseEvents, !r.enable);
if (!r.enable) {
button->clearState();
}
button->setIconOverride(r.enable
? nullptr
: isUndo
? &st::photoEditorUndoButtonInactive
: &st::photoEditorRedoButtonInactive);
}, lifetime());
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if (_stickersButton) {
controllers->stickersPanelController->setShowRequestChanges(
_stickersButton->clicks(
) | rpl::map_to(std::optional<bool>(std::nullopt)));
controllers->stickersPanelController->setMoveRequestChanges(
_paintButtons->positionValue(
) | rpl::map([=](const QPoint &containerPos) {
return QPoint(
(x() + width()) / 2,
y() + containerPos.y() + _stickersButton->y());
}));
controllers->stickersPanelController->panelShown(
) | rpl::start_with_next([=](bool shown) {
_stickersButton->setIconOverride(shown
? &st::photoEditorStickersButton.iconOver
: nullptr);
}, _stickersButton->lifetime());
}
_flipButton->clicks(
) | rpl::start_with_next([=] {
_flipped = !_flipped;
_flipButton->setIconOverride(_flipped
? &st::photoEditorFlipButton.iconOver
: nullptr);
}, _flipButton->lifetime());
}
rpl::producer<int> PhotoEditorControls::rotateRequests() const {
return _rotateButton->clicks() | rpl::map_to(90);
}
rpl::producer<> PhotoEditorControls::flipRequests() const {
return _flipButton->clicks() | rpl::to_empty;
}
rpl::producer<> PhotoEditorControls::paintModeRequests() const {
return _paintModeButton->clicks() | rpl::to_empty;
}
rpl::producer<> PhotoEditorControls::doneRequests() const {
return _done->clicks() | rpl::to_empty;
}
rpl::producer<> PhotoEditorControls::cancelRequests() const {
return _cancel->clicks() | rpl::to_empty;
}
void PhotoEditorControls::applyMode(const PhotoEditorMode &mode) {
using Mode = PhotoEditorMode::Mode;
_transformButtons->setVisible(mode.mode == Mode::Transform);
_paintButtons->setVisible(mode.mode == Mode::Paint);
_mode = mode;
}
} // namespace Editor