The Birdfont Source Code


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Screen.vala in libbirdfont

This file is a part of the Birdfont project.

Contributing

Send patches or pull requests to johan.mattsson.m@gmail.com.
Clone this repository: git clone https://github.com/johanmattssonm/birdfont.git

Revisions

View the latest version of libbirdfont/Screen.vala.
Merge ../birdfont-2.x
1 /* 2 Copyright (C) 2015 Johan Mattsson 3 4 This library is free software; you can redistribute it and/or modify 5 it under the terms of the GNU Lesser General Public License as 6 published by the Free Software Foundation; either version 3 of the 7 License, or (at your option) any later version. 8 9 This library is distributed in the hope that it will be useful, but 10 WITHOUT ANY WARRANTY; without even the implied warranty of 11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 12 Lesser General Public License for more details. 13 */ 14 15 using Cairo; 16 17 namespace BirdFont { 18 19 public class Screen { 20 public static double get_scale () { 21 return MainWindow.native_window.get_screen_scale (); 22 } 23 24 public static ImageSurface create_background_surface (int w, int h) { 25 int width = (int) (get_scale () * w); 26 int height = (int) (get_scale () * h); 27 return new ImageSurface(Cairo.Format.ARGB32, width, height); 28 } 29 30 public static void paint_background_surface(Context cr, Surface s, int x, int y) { 31 cr.save (); 32 cr.set_antialias (Cairo.Antialias.NONE); 33 cr.scale (1 / get_scale (), 1 / get_scale ()); 34 cr.set_source_surface (s, (int) (x * Screen.get_scale ()), (int) (y * Screen.get_scale ())); 35 cr.paint (); 36 cr.restore (); 37 } 38 39 } 40 41 } 42