Initial release

engine/vendor/vst3sdk/vstgui4/vstgui/lib/controls/cspecialdigit.cpp

@@ -0,0 +1,130 @@
+// 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
+
+#include "cspecialdigit.h"
+#include "../cdrawcontext.h"
+#include "../cbitmap.h"
+#include <cmath>
+
+namespace VSTGUI {
+
+//------------------------------------------------------------------------
+// CSpecialDigit
+//------------------------------------------------------------------------
+/*! @class CSpecialDigit
+Can be used to display a counter with maximum 7 digits.
+All digit have the same size and are stacked in height in the bitmap.
+*/
+//------------------------------------------------------------------------
+/**
+ * CSpecialDigit constructor.
+ * @param size the size of this view
+ * @param listener the listener
+ * @param tag the control tag
+ * @param dwPos actual value
+ * @param iNumbers amount of numbers (max 7)
+ * @param xpos array of all X positions, can be NULL
+ * @param ypos array of all Y positions, can be NULL
+ * @param width width of one number in the bitmap
+ * @param height height of one number in the bitmap
+ * @param background bitmap
+ */
+//------------------------------------------------------------------------
+CSpecialDigit::CSpecialDigit (const CRect& size, IControlListener* listener, int32_t tag, int32_t dwPos, int32_t inNumbers, int32_t* xpos, int32_t* ypos, int32_t width, int32_t height, CBitmap* background)
+: CControl (size, listener, tag, background)
+, iNumbers (inNumbers)
+, width (width)
+, height (height)
+{
+	setValue ((float)dwPos);          // actual value
+
+	if (iNumbers > 7)
+		iNumbers = 7;
+
+	if (xpos == nullptr)
+	{
+		// automatically init xpos/ypos if not provided by caller
+		const int32_t numw = (const int32_t)background->getWidth();
+		int32_t x = (int32_t)size.left;
+		for (int32_t i = 0; i < inNumbers; i++)
+		{
+			this->xpos[i] = x; 
+			this->ypos[i] = (int32_t)size.top;
+			x += numw;
+		}
+	} 
+	else if (xpos && ypos)
+	{
+		// store coordinates of x/y pos of each digit
+		for (int32_t i = 0; i < inNumbers; i++)
+		{
+			this->xpos[i] = xpos[i];
+			this->ypos[i] = ypos[i];
+		}
+	}
+
+	setMax ((float)pow (10.f, (float)inNumbers) - 1.0f);
+	setMin (0.0f);
+}
+
+//------------------------------------------------------------------------
+CSpecialDigit::CSpecialDigit (const CSpecialDigit& v)
+: CControl (v)
+, iNumbers (v.iNumbers)
+, width (v.width)
+, height (v.height)
+{
+	for (int32_t i = 0; i < 7; i++)
+	{
+		xpos[i] = v.xpos[i];
+		ypos[i] = v.ypos[i];
+	}
+}
+
+//------------------------------------------------------------------------
+void CSpecialDigit::draw (CDrawContext *pContext)
+{
+	CPoint where;
+	CRect rectDest;
+	int32_t i, j;
+	int32_t one_digit[16] = {};
+
+	int32_t dwValue = static_cast<int32_t> (getValue ());
+	int32_t intMax = static_cast<int32_t> (getMax ());
+	if (dwValue > intMax)
+		dwValue = intMax;
+	else if (dwValue < static_cast<int32_t> (getMin ()))
+		dwValue = static_cast<int32_t> (getMin ());
+	
+	for (i = 0, j = (intMax + 1) / 10; i < iNumbers; i++, j /= 10)
+	{
+		one_digit[i] = dwValue / j;
+		dwValue -= (one_digit[i] * j);
+	}
+	
+	where.x = 0;
+	for (i = 0; i < iNumbers; i++)
+	{	
+		j = one_digit[i];
+		if (j > 9)
+			j = 9;
+		
+		rectDest.left   = (CCoord)xpos[i];
+		rectDest.top    = (CCoord)ypos[i];
+		
+		rectDest.right  = rectDest.left + width;
+		rectDest.bottom = rectDest.top  + height;		
+		
+		// where = src from bitmap
+		where.y = (CCoord)j * height;
+		if (getDrawBackground ())
+		{
+			getDrawBackground ()->draw (pContext, rectDest, where);
+		}
+	}
+		
+	setDirty (false);
+}
+
+} // VSTGUI