79 lines
1.7 KiB
C++
79 lines
1.7 KiB
C++
/***
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Olive - Non-Linear Video Editor
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Copyright (C) 2022 Olive Team
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This program 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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This program 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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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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***/
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#ifndef RESIZABLESCROLLBAR_H
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#define RESIZABLESCROLLBAR_H
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#include <QScrollBar>
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#include "common/define.h"
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namespace olive {
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class ResizableScrollBar : public QScrollBar
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{
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Q_OBJECT
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public:
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ResizableScrollBar(QWidget* parent = nullptr);
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ResizableScrollBar(Qt::Orientation orientation, QWidget* parent = nullptr);
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signals:
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void ResizeBegan(int old_bar_width, bool top_handle);
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void ResizeMoved(int movement);
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void ResizeEnded();
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protected:
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virtual void mousePressEvent(QMouseEvent* event) override;
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virtual void mouseMoveEvent(QMouseEvent* event) override;
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virtual void mouseReleaseEvent(QMouseEvent* event) override;
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private:
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QRect GetScrollBarRect();
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static const int kHandleWidth;
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enum MouseHandleState {
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kNotInHandle,
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kInTopHandle,
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kInBottomHandle
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};
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void Init();
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int GetActiveMousePos(QMouseEvent* event);
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int GetActiveBarSize();
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MouseHandleState mouse_handle_state_;
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bool dragging_;
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int drag_start_point_;
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};
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}
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#endif // RESIZABLESCROLLBAR_H
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