Initial release

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

@@ -0,0 +1,154 @@
+// 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 "ccontrol.h"
+#include "../cfont.h"
+#include "../ccolor.h"
+#include "../cdrawdefs.h"
+#include <functional>
+
+namespace VSTGUI {
+
+//-----------------------------------------------------------------------------
+using CParamDisplayValueToStringProc = bool (*) (float value, char utf8String[256], void* userData);
+
+//-----------------------------------------------------------------------------
+// CParamDisplay Declaration
+//! @brief a parameter display
+/// @ingroup views
+//-----------------------------------------------------------------------------
+class CParamDisplay : public CControl
+{
+protected:
+	enum StyleEnum
+	{
+		StyleShadowText = 0,
+		Style3DIn,
+		Style3DOut,
+		StyleNoText,
+		StyleNoDraw,
+		StyleRoundRect,
+		StyleNoFrame,
+		StyleAntialias,
+		LastStyle
+	};
+
+public:
+	CParamDisplay (const CRect& size, CBitmap* background = nullptr, int32_t style = 0);
+	CParamDisplay (const CParamDisplay& paramDisplay);
+	
+	//-----------------------------------------------------------------------------
+	/// @name CParamDisplay Methods
+	//-----------------------------------------------------------------------------
+	//@{
+	virtual void setFont (CFontRef fontID);
+	const CFontRef getFont () const { return fontID; }
+
+	virtual void setFontColor (CColor color);
+	CColor getFontColor () const { return fontColor; }
+
+	virtual void setBackColor (CColor color);
+	CColor getBackColor () const { return backColor; }
+
+	virtual void setFrameColor (CColor color);
+	CColor getFrameColor () const { return frameColor; }
+
+	virtual void setShadowColor (CColor color);
+	CColor getShadowColor () const { return shadowColor; }
+
+	virtual void setShadowTextOffset (const CPoint& offset);
+	CPoint getShadowTextOffset () const { return shadowTextOffset; }
+
+	virtual void setAntialias (bool state) { setBit (style, kAntialias, state); }
+	bool getAntialias () const { return hasBit (style, kAntialias); }
+
+	virtual void setHoriAlign (CHoriTxtAlign hAlign);
+	CHoriTxtAlign getHoriAlign () const { return horiTxtAlign; }
+
+	virtual void setTextInset (const CPoint& p);
+	CPoint getTextInset () const { return textInset; }
+
+	virtual void setTextRotation (double angle);
+	double getTextRotation () const { return textRotation; }
+
+	virtual void setRoundRectRadius (const CCoord& radius);
+	CCoord getRoundRectRadius () const { return roundRectRadius; }
+
+	virtual void setFrameWidth (const CCoord& width);
+	CCoord getFrameWidth () const { return frameWidth; }
+
+	using ValueToStringUserData = CParamDisplay;
+	using ValueToStringFunction = std::function<bool (float value, char utf8String[256], CParamDisplay* display)>;
+	
+	void setValueToStringFunction (const ValueToStringFunction& valueToStringFunc);
+	void setValueToStringFunction (ValueToStringFunction&& valueToStringFunc);
+
+	using ValueToStringFunction2 = std::function<bool (float value, std::string& result, CParamDisplay* display)>;
+
+	void setValueToStringFunction2 (const ValueToStringFunction2& valueToStringFunc);
+	void setValueToStringFunction2 (ValueToStringFunction2&& valueToStringFunc);
+	
+	enum Style
+	{
+		kShadowText		= 1 << StyleShadowText,
+		k3DIn			= 1 << Style3DIn,
+		k3DOut			= 1 << Style3DOut,
+		kNoTextStyle	= 1 << StyleNoText,
+		kNoDrawStyle	= 1 << StyleNoDraw,
+		kRoundRectStyle = 1 << StyleRoundRect,
+		kNoFrame		= 1 << StyleNoFrame,
+	};
+	virtual void setStyle (int32_t val);
+	int32_t getStyle () const;
+
+	virtual void setPrecision (uint8_t precision);
+	uint8_t getPrecision () const { return valuePrecision; }
+
+	virtual void setBackOffset (const CPoint& offset);
+	const CPoint& getBackOffset () const { return backOffset; }
+	void copyBackOffset ();
+
+	//@}
+
+	void draw (CDrawContext* pContext) override;
+	bool getFocusPath (CGraphicsPath& outPath) override;
+	bool removed (CView* parent) override;
+
+	CLASS_METHODS(CParamDisplay, CControl)
+protected:
+	~CParamDisplay () noexcept override;
+	virtual void drawBack (CDrawContext* pContext, CBitmap* newBack = nullptr);
+
+	virtual void drawPlatformText (CDrawContext* pContext, const UTF8String& string);
+	virtual void drawPlatformText (CDrawContext* pContext, const UTF8String& string,
+								   const CRect& size);
+
+	virtual void drawStyleChanged ();
+
+	ValueToStringFunction2 valueToStringFunction;
+
+	enum StylePrivate {
+		kAntialias		= 1 << StyleAntialias,
+	};
+
+	CHoriTxtAlign horiTxtAlign;
+	int32_t		style;
+	uint8_t		valuePrecision;
+
+	CFontRef	fontID;
+	CColor		fontColor;
+	CColor		backColor;
+	CColor		frameColor;
+	CColor		shadowColor;
+	CPoint		textInset;
+	CPoint		shadowTextOffset {1., 1.};
+	CPoint		backOffset;
+	CCoord		roundRectRadius;
+	CCoord		frameWidth;
+	double		textRotation;
+};
+
+} // VSTGUI