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64 lines
2.8 KiB
C++
64 lines
2.8 KiB
C++
//##################################################################################################
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//
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// Custom Visualization Core library
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// Copyright (C) 2011-2012 Ceetron AS
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//
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// This library 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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//
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// This library is distributed in the hope that it will be useful, but WITHOUT ANY
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// WARRANTY; without even the implied warranty of MERCHANTABILITY or
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// FITNESS FOR A PARTICULAR PURPOSE.
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//
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// See the GNU General Public License at <<http://www.gnu.org/licenses/gpl.html>>
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// for more details.
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//
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//##################################################################################################
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#pragma once
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class QMouseEvent;
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class QGraphicsSceneMouseEvent;
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#include <Qt>
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namespace caf {
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//==================================================================================================
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//
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// Helper class for storing mouse positions and button states. Should be reset whenever widget looses focus.
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//
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//==================================================================================================
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class QtMouseState
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{
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public:
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QtMouseState();
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void updateFromMouseEvent(QMouseEvent* event);
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void updateFromMouseEvent(QGraphicsSceneMouseEvent* event);
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void reset();
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Qt::MouseButtons mouseButtonState() const;
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Qt::KeyboardModifiers keyboardModifierFlags() const;
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Qt::MouseButton cleanButtonClickButton() const;
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public:
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static int numMouseButtonsInState(Qt::MouseButtons buttonState);
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private:
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Qt::MouseButtons m_mouseButtonState; // Stores current mouse button state (combination of mouse buttons that are down)
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Qt::KeyboardModifiers m_keyboardModifierFlags; // Stores current keyboard modifier flags (combination of keyboard modifier keys that are down)
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int m_cleanButtonClickTolerance; // The movement tolerance in pixels for considering a mouse button press/release sequence a clean button click
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Qt::MouseButton m_cleanButtonPressButton; // The mouse button that was last pressed 'cleanly', that is without any other mouse buttons down. Used to detect clean button clicks (for showing context menus etc)
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int m_cleanButtonPressPosX; // The position of the mouse cursor in widget coordinates of the last clean button press. Used to check if cursor has moved when button is released
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int m_cleanButtonPressPosY; //
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Qt::MouseButton m_cleanButtonClickButton; // The button (if any) that was last clicked 'cleanly'.
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};
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}
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