Example #1
0
File: pen.go Project: wangch/walk
func newNullPen() *nullPen {
	lb := &win.LOGBRUSH{LbStyle: win.BS_NULL}

	hPen := win.ExtCreatePen(win.PS_COSMETIC|win.PS_NULL, 1, lb, 0, nil)
	if hPen == 0 {
		panic("failed to create null brush")
	}

	return &nullPen{hPen: hPen}
}
Example #2
0
File: pen.go Project: wangch/walk
func NewCosmeticPen(style PenStyle, color Color) (*CosmeticPen, error) {
	lb := &win.LOGBRUSH{LbStyle: win.BS_SOLID, LbColor: win.COLORREF(color)}

	style |= win.PS_COSMETIC

	hPen := win.ExtCreatePen(uint32(style), 1, lb, 0, nil)
	if hPen == 0 {
		return nil, newError("ExtCreatePen failed")
	}

	return &CosmeticPen{hPen: hPen, style: style, color: color}, nil
}
Example #3
0
File: pen.go Project: wangch/walk
func NewGeometricPen(style PenStyle, width int, brush Brush) (*GeometricPen, error) {
	if brush == nil {
		return nil, newError("brush cannot be nil")
	}

	style |= win.PS_GEOMETRIC

	hPen := win.ExtCreatePen(uint32(style), uint32(width), brush.logbrush(), 0, nil)
	if hPen == 0 {
		return nil, newError("ExtCreatePen failed")
	}

	return &GeometricPen{
		hPen:  hPen,
		style: style,
		width: width,
		brush: brush,
	}, nil
}