Initial release

engine/vendor/vst3sdk/vstgui4/vstgui/lib/cbuttonstate.h

@@ -0,0 +1,95 @@
+// This file is part of VSTGUI. It is subject to the license terms 
+// in the LICENSE file found in the top-level directory of this
+// distribution and at http://github.com/steinbergmedia/vstgui/LICENSE
+
+#pragma once
+
+#include "vstguibase.h"
+
+namespace VSTGUI {
+
+//----------------------------
+// @brief Button Types (+modifiers)
+//----------------------------
+enum CButton
+{
+	/** left mouse button */
+	kLButton = 1 << 1,
+	/** middle mouse button */
+	kMButton = 1 << 2,
+	/** right mouse button */
+	kRButton = 1 << 3,
+	/** shift modifier */
+	kShift = 1 << 4,
+	/** control modifier (Command Key on Mac OS X and Control Key on Windows) */
+	kControl = 1 << 5,
+	/** alt modifier */
+	kAlt = 1 << 6,
+	/** apple modifier (Mac OS X only. Is the Control key) */
+	kApple = 1 << 7,
+	/** 4th mouse button */
+	kButton4 = 1 << 8,
+	/** 5th mouse button */
+	kButton5 = 1 << 9,
+	/** mouse button is double click */
+	kDoubleClick = 1 << 10,
+	/** system mouse wheel setting is inverted (Only valid for onMouseWheel methods). The distance
+	   value is already transformed back to non inverted. But for scroll views we need to know if we
+	   need to invert it back. */
+	kMouseWheelInverted = 1 << 11
+};
+
+//-----------------------------------------------------------------------------
+// CButtonState Declaration
+//! @brief Button and Modifier state
+//-----------------------------------------------------------------------------
+struct CButtonState
+{
+public:
+	CButtonState (int32_t state = 0) : state (state) {}
+	CButtonState (const CButtonState& bs) : state (bs.state) {}
+	
+	int32_t getButtonState () const { return state & (kLButton | kRButton | kMButton | kButton4 | kButton5); }
+	int32_t getModifierState () const { return state & (kShift | kAlt | kControl | kApple); }
+
+	/** returns true if only the left button is set. Ignores modifier state */
+	bool isLeftButton () const { return getButtonState () == kLButton; }
+	/** returns true if only the middle button is set. Ignores modifier state */
+	bool isMiddleButton () const { return getButtonState () == kMButton; }
+	/** returns true if only the right button is set. Ignores modifier state */
+	bool isRightButton () const { return getButtonState () == kRButton; }
+	/** returns true if only the 4th button is set. Ignores modifier state */
+	bool isButton4 () const { return getButtonState () == kButton4; }
+	/** returns true if only the 5th button is set. Ignores modifier state */
+	bool isButton5 () const { return getButtonState () == kButton5; }
+
+	/** returns true if the double click flag is set. */
+	bool isDoubleClick () const { return hasBit<int32_t> (state, kDoubleClick); }
+
+	/** returns true if the shift modifier is set. */
+	bool isShiftSet () const { return hasBit<int32_t> (state, kShift); }
+	/** returns true if the alt modifier is set. */
+	bool isAltSet () const { return hasBit<int32_t> (state, kAlt); }
+	/** returns true if the control modifier is set. */
+	bool isControlSet () const { return hasBit<int32_t> (state, kControl); }
+	/** returns true if the apple modifier is set. */
+	bool isAppleSet () const { return hasBit<int32_t> (state, kApple); }
+
+	bool isMouseWheelInverted () const { return hasBit<int32_t> (state, kMouseWheelInverted); }
+
+	int32_t operator() () const { return state; }
+	CButtonState& operator= (int32_t s) { state = s; return *this; }
+	CButtonState& operator&= (int32_t s) { state &= s; return *this; }
+	CButtonState& operator|= (int32_t s) { state |= s; return *this; }
+
+	int32_t operator& (const CButtonState& s) const { return state & s.state; }
+	int32_t operator| (const CButtonState& s) const { return state | s.state; }
+	int32_t operator~ () const { return ~state; }
+
+	bool operator== (const CButtonState& s) const { return state == s.state; }
+	bool operator!= (const CButtonState& s) const { return state != s.state; }
+protected:
+	int32_t state;
+};
+
+} // VSTGUI