2016-10-20 19:48:35 +00:00
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/*
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This file is part of Telegram Desktop,
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the official desktop version of Telegram messaging app, see https://telegram.org
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Telegram Desktop is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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It is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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In addition, as a special exception, the copyright holders give permission
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to link the code of portions of this program with the OpenSSL library.
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Full license: https://github.com/telegramdesktop/tdesktop/blob/master/LICENSE
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Copyright (c) 2014-2016 John Preston, https://desktop.telegram.org
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*/
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#pragma once
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#include "styles/style_widgets.h"
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namespace Ui {
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2016-11-15 11:56:49 +00:00
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class InputField;
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class CrossButton;
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class ScrollArea;
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2016-10-20 19:48:35 +00:00
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class MultiSelect : public TWidget {
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public:
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MultiSelect(QWidget *parent, const style::MultiSelect &st, const QString &placeholder = QString());
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QString getQuery() const;
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void setInnerFocus();
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void clearQuery();
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2016-10-20 19:48:35 +00:00
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2016-11-20 12:54:07 +00:00
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void setQueryChangedCallback(base::lambda<void(const QString &query)> &&callback);
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void setSubmittedCallback(base::lambda<void(bool ctrlShiftEnter)> &&callback);
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void setResizedCallback(base::lambda<void()> &&callback);
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2016-10-22 13:03:20 +00:00
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enum class AddItemWay {
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Default,
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SkipAnimation,
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};
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using PaintRoundImage = base::lambda<void(Painter &p, int x, int y, int outerWidth, int size)>;
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void addItem(uint64 itemId, const QString &text, const style::color &color, PaintRoundImage &&paintRoundImage, AddItemWay way = AddItemWay::Default);
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void setItemText(uint64 itemId, const QString &text);
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void setItemRemovedCallback(base::lambda<void(uint64 itemId)> &&callback);
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void removeItem(uint64 itemId);
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protected:
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int resizeGetHeight(int newWidth) override;
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bool eventFilter(QObject *o, QEvent *e) override;
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private:
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void scrollTo(int activeTop, int activeBottom);
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const style::MultiSelect &_st;
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2016-11-16 10:44:06 +00:00
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ChildWidget<Ui::ScrollArea> _scroll;
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class Inner;
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ChildWidget<Inner> _inner;
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base::lambda<void()> _resizedCallback;
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base::lambda<void(const QString &query)> _queryChangedCallback;
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};
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// This class is hold in header because it requires Qt preprocessing.
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class MultiSelect::Inner : public TWidget {
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Q_OBJECT
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public:
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using ScrollCallback = base::lambda<void(int activeTop, int activeBottom)>;
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Inner(QWidget *parent, const style::MultiSelect &st, const QString &placeholder, ScrollCallback &&callback);
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QString getQuery() const;
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bool setInnerFocus();
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void clearQuery();
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2016-11-20 12:54:07 +00:00
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void setQueryChangedCallback(base::lambda<void(const QString &query)> &&callback);
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void setSubmittedCallback(base::lambda<void(bool ctrlShiftEnter)> &&callback);
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class Item;
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void addItem(std_::unique_ptr<Item> item, AddItemWay way);
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void setItemText(uint64 itemId, const QString &text);
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2016-11-20 12:54:07 +00:00
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void setItemRemovedCallback(base::lambda<void(uint64 itemId)> &&callback);
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void removeItem(uint64 itemId);
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void setResizedCallback(base::lambda<void(int heightDelta)> &&callback);
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~Inner();
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protected:
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int resizeGetHeight(int newWidth) override;
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void paintEvent(QPaintEvent *e) override;
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void leaveEvent(QEvent *e) override;
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void mouseMoveEvent(QMouseEvent *e) override;
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void mousePressEvent(QMouseEvent *e) override;
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void keyPressEvent(QKeyEvent *e) override;
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private slots:
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void onQueryChanged();
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void onSubmitted(bool ctrlShiftEnter) {
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if (_submittedCallback) {
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_submittedCallback(ctrlShiftEnter);
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}
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}
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void onFieldFocused();
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private:
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void computeItemsGeometry(int newWidth);
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void updateItemsGeometry();
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void updateFieldGeometry();
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void updateHasAnyItems(bool hasAnyItems);
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void updateSelection(QPoint mousePosition);
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void clearSelection() {
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updateSelection(QPoint(-1, -1));
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}
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void updateCursor();
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void updateHeightStep();
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void finishHeightAnimation();
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enum class ChangeActiveWay {
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Default,
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SkipSetFocus,
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};
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void setActiveItem(int active, ChangeActiveWay skipSetFocus = ChangeActiveWay::Default);
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void setActiveItemPrevious();
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void setActiveItemNext();
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QMargins itemPaintMargins() const;
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const style::MultiSelect &_st;
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FloatAnimation _iconOpacity;
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ScrollCallback _scrollCallback;
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using Items = QList<Item*>;
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Items _items;
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using RemovingItems = OrderedSet<Item*>;
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RemovingItems _removingItems;
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int _selected = -1;
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int _active = -1;
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bool _overDelete = false;
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int _fieldLeft = 0;
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int _fieldTop = 0;
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int _fieldWidth = 0;
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ChildWidget<Ui::InputField> _field;
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ChildWidget<Ui::CrossButton> _cancel;
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int _newHeight = 0;
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IntAnimation _height;
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2016-11-20 12:54:07 +00:00
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base::lambda<void(const QString &query)> _queryChangedCallback;
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base::lambda<void(bool ctrlShiftEnter)> _submittedCallback;
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base::lambda<void(uint64 itemId)> _itemRemovedCallback;
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base::lambda<void(int heightDelta)> _resizedCallback;
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2016-10-20 19:48:35 +00:00
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};
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} // namespace Ui
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