Initial release

engine/vendor/vst3sdk/vstgui4/vstgui/lib/controls/cxypad.h

@@ -0,0 +1,68 @@
+// 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 "cparamdisplay.h"
+#include "../cbitmap.h"
+#include <cmath>
+
+namespace VSTGUI {
+
+//------------------------------------------------------------------------
+class CXYPad : public CParamDisplay, protected CMouseWheelEditingSupport
+{
+public:
+	explicit CXYPad (const CRect& size = CRect (0, 0, 0, 0));
+
+	void setStopTrackingOnMouseExit (bool state) { stopTrackingOnMouseExit = state; }
+	bool getStopTrackingOnMouseExit () const { return stopTrackingOnMouseExit; }
+
+	void setHandleBitmap (CBitmap* bitmap);
+	CBitmap* getHandleBitmap () const;
+
+	void draw (CDrawContext* context) override;
+	void drawBack (CDrawContext* pContext, CBitmap* newBack = nullptr) override;
+
+	void onMouseDownEvent (MouseDownEvent& event) override;
+	void onMouseUpEvent (MouseUpEvent& event) override;
+	void onMouseMoveEvent (MouseMoveEvent& event) override;
+	void onMouseCancelEvent (MouseCancelEvent& event) override;
+	void onMouseWheelEvent (MouseWheelEvent& event) override;
+	void onKeyboardEvent (KeyboardEvent& event) override;
+
+	/** set default value so that x and y default to val */
+	void setDefaultValue (float val) override;
+	/** set default value for x and y */
+	void setDefaultValues (float x, float y);
+
+	static float calculateValue (float x, float y)
+	{
+		x = std::floor (x * 1000.f + 0.5f) * 0.001f;
+		y = std::floor (y * 1000.f + 0.5f) * 0.0000001f;
+		return x + y;
+	}
+	
+	static void calculateXY (float value, float& x, float& y)
+	{
+		x = std::floor (value * 1000.f + 0.5f) * 0.001f;
+		y = std::floor ((value - x)  * 10000000.f + 0.5f) * 0.001f;
+	}
+	
+protected:
+	void onMouseMove (MouseDownUpMoveEvent& event);
+
+	void setMin (float val) override { }
+	void setMax (float val) override { }
+
+	void boundValues (float& x, float& y);
+	
+	float mouseStartValue;
+	CPoint mouseChangeStartPoint;
+	CPoint lastMouseChangePoint;
+	bool stopTrackingOnMouseExit;
+	SharedPointer<CBitmap> handle;
+};
+
+} // VSTGUI