本文整理汇总了Golang中github.com/BurntSushi/wingo/render.Color.ImageColor方法的典型用法代码示例。如果您正苦于以下问题：Golang Color.ImageColor方法的具体用法？Golang Color.ImageColor怎么用？Golang Color.ImageColor使用的例子？那么恭喜您, 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类github.com/BurntSushi/wingo/render.Color的用法示例。
在下文中一共展示了Color.ImageColor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Golang代码示例。
示例1: DrawText
// DrawText is a convenience function that will create a new image, render
// the provided text to it, paint the image to the provided window, and resize
// the window to fit the text snugly.
//
// An error can occur when rendering the text to an image.
func DrawText(win *xwindow.Window, font *truetype.Font, size float64,
fontClr, bgClr render.Color, text string) error {
// Over estimate the extents.
ew, eh := xgraphics.TextMaxExtents(font, size, text)
eh += misc.TextBreathe // <-- this is the bug
// Create an image using the over estimated extents.
img := xgraphics.New(win.X, image.Rect(0, 0, ew, eh))
xgraphics.BlendBgColor(img, bgClr.ImageColor())
// Now draw the text, grab the (x, y) position advanced by the text, and
// check for an error in rendering.
x, y, err := img.Text(0, 0, fontClr.ImageColor(), size, font, text)
if err != nil {
return err
}
// Resize the window to the geometry determined by (x, y).
w, h := x, y+misc.TextBreathe // <-- also part of the bug
win.Resize(w, h)
// Now draw the image to the window and destroy it.
img.XSurfaceSet(win.Id)
subimg := img.SubImage(image.Rect(0, 0, w, h))
subimg.XDraw()
subimg.XPaint(win.Id)
img.Destroy()
return nil
}示例2: DrawText
// DrawText is a convenience function that will create a new image, render
// the provided text to it, paint the image to the provided window, and resize
// the window to fit the text snugly.
//
// An error can occur when rendering the text to an image.
func DrawText(win *xwindow.Window, font *truetype.Font, size float64,
fontClr, bgClr render.Color, text string) error {
// BUG(burntsushi): If `text` is zero-length, very bad things happen.
if len(text) == 0 {
text = " "
}
// Over estimate the extents.
ew, eh := xgraphics.Extents(font, size, text)
// Create an image using the over estimated extents.
img := xgraphics.New(win.X, image.Rect(0, 0, ew, eh))
xgraphics.BlendBgColor(img, bgClr.ImageColor())
// Now draw the text, grab the (x, y) position advanced by the text, and
// check for an error in rendering.
_, _, err := img.Text(0, 0, fontClr.ImageColor(), size, font, text)
if err != nil {
return err
}
// Resize the window to the geometry determined by (x, y).
win.Resize(ew, eh)
// Now draw the image to the window and destroy it.
img.XSurfaceSet(win.Id)
// subimg := img.SubImage(image.Rect(0, 0, ew, eh))
img.XDraw()
img.XPaint(win.Id)
img.Destroy()
return nil
}