97d82b502b5549baf14956839462f22a8cb944cd
1 # This file is part of NIT (http://www.nitlanguage.org).
3 # Licensed under the Apache License, Version 2.0 (the "License");
4 # you may not use this file except in compliance with the License.
5 # You may obtain a copy of the License at
7 # http://www.apache.org/licenses/LICENSE-2.0
9 # Unless required by applicable law or agreed to in writing, software
10 # distributed under the License is distributed on an "AS IS" BASIS,
11 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 # See the License for the specific language governing permissions and
13 # limitations under the License.
15 # Abstract display services
20 import display_linux
is conditional
(linux
)
21 import display_android
is conditional
(android
)
23 # Should Gamnit be more verbose?
24 fun debug_gamnit
: Bool do return false
26 # General display class, is sized and drawable
29 # Width of the display, in pixels
30 fun width
: Int is abstract
32 # Height of the display, in pixels
33 fun height
: Int is abstract
35 # Aspect ratio of the screen, `width / height`
36 var aspect_ratio
: Float is lazy
do return width
.to_f
/ height
.to_f
38 # Prepare this display
40 # The implementation varies per platform.
43 # Close this display and free underlying resources
45 # The implementation varies per platform.
48 # Flip the display buffers
50 # The implementation varies per platform.