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C# Canvas.drawColor方法代码示例

本文整理汇总了C#中Canvas.drawColor方法的典型用法代码示例。如果您正苦于以下问题:C# Canvas.drawColor方法的具体用法?C# Canvas.drawColor怎么用?C# Canvas.drawColor使用的例子?那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在Canvas的用法示例。


在下文中一共展示了Canvas.drawColor方法的2个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的C#代码示例。

示例1: onDraw

		protected internal override void onDraw(Canvas canvas)
		{
			canvas.drawColor(Color.DKGRAY);
			canvas.drawRect(0, 0, mBitmap.Width, mBitmap.Height, paintFromColor(Color.WHITE, Paint.Style.FILL_AND_STROKE));

			canvas.drawBitmap(mBitmap, 0, 0, mBitmapPaint);

			canvas.drawPath(mPath, mPaint);
		}
开发者ID:moljac,项目名称:Samples.Data.Porting,代码行数:9,代码来源:DrawingView.cs

示例2: saveBitmapPNGWithBackgroundColor

		/// <summary>
		/// Save PNG image with background color
		/// </summary>
		/// <param name="strFileName">
		///            Save file path </param>
		/// <param name="bitmap">
		///            Input bitmap </param>
		/// <param name="nQuality">
		///            Jpeg quality for saving </param>
		/// <param name="nBackgroundColor">
		///            background color </param>
		/// <returns> whether success or not </returns>
		public static bool saveBitmapPNGWithBackgroundColor(string strFileName, Bitmap bitmap, int nBackgroundColor)
		{
			bool bSuccess1 = false;
			bool bSuccess2 = false;
			bool bSuccess3;
			File saveFile = new File(strFileName);

			if (saveFile.exists())
			{
				if (!saveFile.delete())
				{
					return false;
				}
			}

			int nA = (nBackgroundColor >> 24) & 0xff;

			// If Background color alpha is 0, Background color substitutes as white
			if (nA == 0)
			{
				nBackgroundColor = unchecked((int)0xFFFFFFFF);
			}

			Rect rect = new Rect(0, 0, bitmap.Width, bitmap.Height);
			Bitmap newBitmap = Bitmap.createBitmap(bitmap.Width, bitmap.Height, Bitmap.Config.ARGB_8888);
			Canvas canvas = new Canvas(newBitmap);
			canvas.drawColor(nBackgroundColor);
			canvas.drawBitmap(bitmap, rect, rect, new Paint());

			System.IO.Stream @out = null;

			try
			{
				bSuccess1 = saveFile.createNewFile();
			}
			catch (IOException e1)
			{
				// TODO Auto-generated catch block
				Console.WriteLine(e1.ToString());
				Console.Write(e1.StackTrace);
			}

			try
			{
				@out = new System.IO.FileStream(saveFile, System.IO.FileMode.Create, System.IO.FileAccess.Write);
				bSuccess2 = newBitmap.compress(Bitmap.CompressFormat.PNG, 100, @out);
			}
			catch (Exception e)
			{
				Console.WriteLine(e.ToString());
				Console.Write(e.StackTrace);
			}

			try
			{
				if (@out != null)
				{
					@out.Flush();
					@out.Close();
					bSuccess3 = true;
				}
				else
				{
					bSuccess3 = false;
				}

			}
			catch (IOException e)
			{
				Console.WriteLine(e.ToString());
				Console.Write(e.StackTrace);
				bSuccess3 = false;
			}
			finally
			{
				if (@out != null)
				{
					try
					{
						@out.Close();
					}
					catch (IOException e)
					{
						// TODO Auto-generated catch block
						Console.WriteLine(e.ToString());
						Console.Write(e.StackTrace);
					}
				}
//.........这里部分代码省略.........
开发者ID:moljac,项目名称:Samples.Data.Porting,代码行数:101,代码来源:AnimationUtils.cs


注:本文中的Canvas.drawColor方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目,源码版权归原作者所有,传播和使用请参考对应项目的License;未经允许,请勿转载。