func createBitmap() (*walk.Bitmap, error) {
bounds := walk.Rectangle{Width: 200, Height: 200}
bmp, err := walk.NewBitmap(bounds.Size())
if err != nil {
return nil, err
}
succeeded := false
defer func() {
if !succeeded {
bmp.Dispose()
}
}()
canvas, err := walk.NewCanvasFromImage(bmp)
if err != nil {
return nil, err
}
defer canvas.Dispose()
brushBmp, err := walk.NewBitmapFromFile("../img/plus.png")
if err != nil {
return nil, err
}
defer brushBmp.Dispose()
brush, err := walk.NewBitmapBrush(brushBmp)
if err != nil {
return nil, err
}
defer brush.Dispose()
if err := canvas.FillRectangle(brush, bounds); err != nil {
return nil, err
}
font, err := walk.NewFont("Times New Roman", 40, walk.FontBold|walk.FontItalic)
if err != nil {
return nil, err
}
defer font.Dispose()
if err := canvas.DrawText("Walk Drawing Example", font, walk.RGB(0, 0, 0), bounds, walk.TextWordbreak); err != nil {
return nil, err
}
succeeded = true
return bmp, nil
}
func (f Font) Create() (*walk.Font, error) {
if f.Family == "" && f.PointSize == 0 {
return nil, nil
}
var fs walk.FontStyle
if f.Bold {
fs |= walk.FontBold
}
if f.Italic {
fs |= walk.FontItalic
}
if f.Underline {
fs |= walk.FontUnderline
}
if f.StrikeOut {
fs |= walk.FontStrikeOut
}
return walk.NewFont(f.Family, f.PointSize, fs)
}