Win2D中如何计算一段文字的大小
How to calculate the size of a piece of text in Win2D
我正在使用 Win2D 为 Windows 10 编写一个应用程序,我正在尝试绘制一个可以动态缩放以适应其中恰好包含的任何文本的形状。
我想做的是使用给定的 CanvasTextFormat 计算出特定字符串的大小,然后使用它来设置形状的大小。
我的问题是我似乎找不到计算字符串大小的方法?
请参阅下面的代码来计算所需的大小(查找 "theRectYouAreLookingFor")
private void CanvasControl_Draw(CanvasControl sender, CanvasDrawEventArgs args)
{
CanvasDrawingSession drawingSession = args.DrawingSession;
float xLoc = 100.0f;
float yLoc = 100.0f;
CanvasTextFormat format = new CanvasTextFormat {FontSize = 30.0f, WordWrapping = CanvasWordWrapping.NoWrap};
CanvasTextLayout textLayout = new CanvasTextLayout(drawingSession, "Hello World!", format, 0.0f, 0.0f);
Rect theRectYouAreLookingFor = new Rect(xLoc + textLayout.DrawBounds.X, yLoc + textLayout.DrawBounds.Y, textLayout.DrawBounds.Width, textLayout.DrawBounds.Height);
drawingSession.DrawRectangle(theRectYouAreLookingFor, Colors.Green, 1.0f);
drawingSession.DrawTextLayout(textLayout, xLoc, yLoc, Colors.Yellow);
}
如果您创建一个 CanvasTextLayout
并且 requestedWidth
为 0
,就像在 Michael Vach
的示例中一样,您可能需要在 Win2D 1.23 中禁用自动换行。喜欢:
var textLayout = new CanvasTextLayout(drawingSession, "Hello World!", fontFormat, 0.0f, 0.0f) {
WordWrapping = CanvasWordWrapping.NoWrap
};
var completeOuterSize = textLayout.LayoutBounds
(不允许我发表评论)
我正在使用 Win2D 为 Windows 10 编写一个应用程序,我正在尝试绘制一个可以动态缩放以适应其中恰好包含的任何文本的形状。
我想做的是使用给定的 CanvasTextFormat 计算出特定字符串的大小,然后使用它来设置形状的大小。
我的问题是我似乎找不到计算字符串大小的方法?
请参阅下面的代码来计算所需的大小(查找 "theRectYouAreLookingFor")
private void CanvasControl_Draw(CanvasControl sender, CanvasDrawEventArgs args)
{
CanvasDrawingSession drawingSession = args.DrawingSession;
float xLoc = 100.0f;
float yLoc = 100.0f;
CanvasTextFormat format = new CanvasTextFormat {FontSize = 30.0f, WordWrapping = CanvasWordWrapping.NoWrap};
CanvasTextLayout textLayout = new CanvasTextLayout(drawingSession, "Hello World!", format, 0.0f, 0.0f);
Rect theRectYouAreLookingFor = new Rect(xLoc + textLayout.DrawBounds.X, yLoc + textLayout.DrawBounds.Y, textLayout.DrawBounds.Width, textLayout.DrawBounds.Height);
drawingSession.DrawRectangle(theRectYouAreLookingFor, Colors.Green, 1.0f);
drawingSession.DrawTextLayout(textLayout, xLoc, yLoc, Colors.Yellow);
}
如果您创建一个 CanvasTextLayout
并且 requestedWidth
为 0
,就像在 Michael Vach
的示例中一样,您可能需要在 Win2D 1.23 中禁用自动换行。喜欢:
var textLayout = new CanvasTextLayout(drawingSession, "Hello World!", fontFormat, 0.0f, 0.0f) {
WordWrapping = CanvasWordWrapping.NoWrap
};
var completeOuterSize = textLayout.LayoutBounds
(不允许我发表评论)