Python invert_text_bitmap примеры использования

Пример #1

Файл: fontctrl.py Проект: Scrik/sk1-wx

def generate_fontsamples(fonts):
	bitmaps = []
	w = config.font_preview_width
	fontsize = config.font_preview_size
	color = cms.val_255(config.font_preview_color)
	text = config.font_preview_text
	for item in fonts:
		h = libpango.get_sample_size(text, item, fontsize)[1]
		surface = cairo.ImageSurface(cairo.FORMAT_RGB24, w, h)
		ctx = cairo.Context(surface)
		ctx.set_source_rgb(0.0, 0.0, 0.0)
		ctx.paint()
		matrix = cairo.Matrix(1.0, 0.0, 0.0, 1.0, 0.0, 0.0)
		ctx.set_matrix(matrix)
		ctx.set_source_rgb(1.0, 1.0, 1.0)
		ctx.set_antialias(cairo.ANTIALIAS_DEFAULT)
		libpango.render_sample(ctx, text, item, fontsize)
		ctx.fill()
		bmp = wal.copy_surface_to_bitmap(surface)
		bitmaps.append(wal.invert_text_bitmap(bmp, color))
	return bitmaps

Пример #2

Файл: fontctrl.py Проект: afidegnum/sk1-wx

def generate_fontsample_cache(fonts):
    w = config.font_preview_width
    fontsize = config.font_preview_size
    color = cms.val_255(config.font_preview_color)
    text = config.font_preview_text.decode('utf-8')
    for item in fonts:
        h = libpango.get_sample_size(text, item, fontsize)[1]
        if not h:
            h = 10
            LOG.warn('Incorrect font <%s>: zero font height', item)
        surface = cairo.ImageSurface(cairo.FORMAT_RGB24, w, h)
        ctx = cairo.Context(surface)
        ctx.set_source_rgb(0.0, 0.0, 0.0)
        ctx.paint()
        matrix = cairo.Matrix(1.0, 0.0, 0.0, 1.0, 0.0, 0.0)
        ctx.set_matrix(matrix)
        ctx.set_source_rgb(1.0, 1.0, 1.0)
        ctx.set_antialias(cairo.ANTIALIAS_DEFAULT)
        libpango.render_sample(ctx, text, item, fontsize)
        ctx.fill()
        bmp = wal.copy_surface_to_bitmap(surface)
        FONTSAMPLE_CACHE.append(wal.invert_text_bitmap(bmp, color))

Пример #3

Файл: fontctrl.py Проект: sk1project/sk1-wx

def generate_fontsample_cache(fonts):
	w = config.font_preview_width
	fontsize = config.font_preview_size
	color = cms.val_255(config.font_preview_color)
	text = config.font_preview_text
	for item in fonts:
		h = libpango.get_sample_size(text, item, fontsize)[1]
		if not h:
			h = 10
			warn(_('incorrect font') + ' - %s' % item)
		surface = cairo.ImageSurface(cairo.FORMAT_RGB24, w, h)
		ctx = cairo.Context(surface)
		ctx.set_source_rgb(0.0, 0.0, 0.0)
		ctx.paint()
		matrix = cairo.Matrix(1.0, 0.0, 0.0, 1.0, 0.0, 0.0)
		ctx.set_matrix(matrix)
		ctx.set_source_rgb(1.0, 1.0, 1.0)
		ctx.set_antialias(cairo.ANTIALIAS_DEFAULT)
		libpango.render_sample(ctx, text, item, fontsize)
		ctx.fill()
		bmp = wal.copy_surface_to_bitmap(surface)
		FONTSAMPLE_CACHE.append(wal.invert_text_bitmap(bmp, color))