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Python goocanvas.Bounds方法代码示例

本文整理汇总了Python中goocanvas.Bounds方法的典型用法代码示例。如果您正苦于以下问题:Python goocanvas.Bounds方法的具体用法?Python goocanvas.Bounds怎么用?Python goocanvas.Bounds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goocanvas的用法示例。


在下文中一共展示了goocanvas.Bounds方法的1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Python代码示例。

示例1: _take_screenshot

# 需要导入模块: import goocanvas [as 别名]
# 或者: from goocanvas import Bounds [as 别名]
def _take_screenshot(self, dummy_button):
        #print "Cheese!"
        file_name = self._get_export_file_name()
        if file_name is None:
            return

        # figure out the correct bounding box for what is visible on screen
        x1 = self._scrolled_window.get_hadjustment().value
        y1 = self._scrolled_window.get_vadjustment().value
        x2 = x1 + self._scrolled_window.get_hadjustment().page_size
        y2 = y1 + self._scrolled_window.get_vadjustment().page_size
        bounds = goocanvas.Bounds()
        bounds.x1, bounds.y1 = self.canvas.convert_from_pixels(x1, y1)
        bounds.x2, bounds.y2 = self.canvas.convert_from_pixels(x2, y2)
        dest_width = bounds.x2 - bounds.x1
        dest_height = bounds.y2 - bounds.y1
        #print bounds.x1, bounds.y1, " -> ", bounds.x2, bounds.y2

        dummy, extension = os.path.splitext(file_name)
        extension = extension.lower()
        if extension == '.eps':
            surface = cairo.PSSurface(file_name, dest_width, dest_height)
        elif extension == '.pdf':
            surface = cairo.PDFSurface(file_name, dest_width, dest_height)
        elif extension == '.svg':
            surface = cairo.SVGSurface(file_name, dest_width, dest_height)
        else:
            dialog = gtk.MessageDialog(parent  = self.canvas.get_toplevel(),
                		       flags   = gtk.DIALOG_DESTROY_WITH_PARENT,
                		       type    = gtk.MESSAGE_ERROR,
                		       buttons = gtk.BUTTONS_OK,
                		       message_format = "Unknown extension '%s' (valid extensions are '.eps', '.svg', and '.pdf')"
                                                          % (extension,))
            dialog.run()
            dialog.destroy()
            return

        # draw the canvas to a printing context
        cr = cairo.Context(surface)
        cr.translate(-bounds.x1, -bounds.y1)
        self.canvas.render(cr, bounds, self.zoom.value)
        cr.show_page()
        surface.finish() 
开发者ID:ntu-dsi-dcn,项目名称:ntu-dsi-dcn,代码行数:45,代码来源:core.py


注:本文中的goocanvas.Bounds方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目,源码版权归原作者所有,传播和使用请参考对应项目的License;未经允许,请勿转载。