143 lines
3.4 KiB
C++
143 lines
3.4 KiB
C++
// This file is part of Desktop App Toolkit,
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// a set of libraries for developing nice desktop applications.
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//
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// For license and copyright information please follow this link:
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// https://github.com/desktop-app/legal/blob/master/LEGAL
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//
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#pragma once
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#include "styles/style_widgets.h"
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#include "ui/rp_widget.h"
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#include "ui/round_rect.h"
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#include "ui/effects/animations.h"
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#include "ui/effects/panel_animation.h"
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#include "base/object_ptr.h"
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#include "base/timer.h"
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namespace Ui {
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class ScrollArea;
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class InnerDropdown : public RpWidget {
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public:
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InnerDropdown(QWidget *parent, const style::InnerDropdown &st = st::defaultInnerDropdown);
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template <typename Widget>
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QPointer<Widget> setOwnedWidget(object_ptr<Widget> widget) {
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auto result = doSetOwnedWidget(std::move(widget));
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return QPointer<Widget>(static_cast<Widget*>(result.data()));
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}
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bool overlaps(const QRect &globalRect) {
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if (isHidden() || _a_show.animating() || _a_opacity.animating()) return false;
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return rect().marginsRemoved(_st.padding).contains(QRect(mapFromGlobal(globalRect.topLeft()), globalRect.size()));
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}
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void setAutoHiding(bool autoHiding) {
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_autoHiding = autoHiding;
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}
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void setMaxHeight(int newMaxHeight);
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void resizeToContent();
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void otherEnter();
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void otherLeave();
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void setShowStartCallback(Fn<void()> callback) {
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_showStartCallback = std::move(callback);
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}
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void setHideStartCallback(Fn<void()> callback) {
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_hideStartCallback = std::move(callback);
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}
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void setHiddenCallback(Fn<void()> callback) {
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_hiddenCallback = std::move(callback);
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}
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bool isHiding() const {
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return _hiding && _a_opacity.animating();
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}
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enum class HideOption {
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Default,
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IgnoreShow,
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};
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void showAnimated();
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void setOrigin(PanelAnimation::Origin origin);
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void showAnimated(PanelAnimation::Origin origin);
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void hideAnimated(HideOption option = HideOption::Default);
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void finishAnimating();
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void showFast();
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void hideFast();
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protected:
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void resizeEvent(QResizeEvent *e) override;
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void paintEvent(QPaintEvent *e) override;
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void enterEventHook(QEnterEvent *e) override;
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void leaveEventHook(QEvent *e) override;
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bool eventFilter(QObject *obj, QEvent *e) override;
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int resizeGetHeight(int newWidth) override;
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private:
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QPointer<RpWidget> doSetOwnedWidget(object_ptr<RpWidget> widget);
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QImage grabForPanelAnimation();
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void startShowAnimation();
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void startOpacityAnimation(bool hiding);
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void prepareCache();
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class Container;
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void showAnimationCallback();
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void opacityAnimationCallback();
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void hideFinished();
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void showStarted();
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void updateHeight();
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void scrolled();
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const style::InnerDropdown &_st;
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RoundRect _roundRect;
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PanelAnimation::Origin _origin = PanelAnimation::Origin::TopLeft;
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std::unique_ptr<PanelAnimation> _showAnimation;
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Animations::Simple _a_show;
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bool _autoHiding = true;
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bool _hiding = false;
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QPixmap _cache;
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Animations::Simple _a_opacity;
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base::Timer _hideTimer;
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bool _ignoreShowEvents = false;
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Fn<void()> _showStartCallback;
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Fn<void()> _hideStartCallback;
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Fn<void()> _hiddenCallback;
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object_ptr<ScrollArea> _scroll;
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int _maxHeight = 0;
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};
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class InnerDropdown::Container : public TWidget {
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public:
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Container(QWidget *parent, object_ptr<TWidget> child, const style::InnerDropdown &st);
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void resizeToContent();
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protected:
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int resizeGetHeight(int newWidth) override;
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void visibleTopBottomUpdated(
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int visibleTop,
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int visibleBottom) override;
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private:
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object_ptr<TWidget> _child;
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const style::InnerDropdown &_st;
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};
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} // namespace Ui
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