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Diya-API/Diya/DiyaRectangle.class.st
Dany LE f61e17de9c
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rendering improvement
2022-08-16 00:59:35 +02:00

65 lines
1.2 KiB
Smalltalk

Class {
#name : #DiyaRectangle,
#superclass : #Diya2DPrimShape,
#category : #'Diya-Graphics'
}
{ #category : #'instance creation' }
DiyaRectangle class >> size: size [
^(self new) extent: size; yourself
]
{ #category : #'instance creation' }
DiyaRectangle class >> size: size shader:s [
^(self with:s) extent: size; yourself
]
{ #category : #initialization }
DiyaRectangle >> drawLines [
OpenGL drawArrays: GL_LINE_LOOP first:0 count: (vbuffer size >> 2).
]
{ #category : #accessing }
DiyaRectangle >> extent: v [
bbox := Rectangle origin:0@0 corner: v.
self setDirty
]
{ #category : #accessing }
DiyaRectangle >> initialize [
super initialize.
self extent:10@10.
translation := nil.
vbuffer := FFIExternalArray externalNewType: GLfloat size:16.
vbuffer autoRelease.
type := GL_QUADS.
]
{ #category : #accessing }
DiyaRectangle >> process [
|extent|
extent := self extent.
vbuffer
at: 1 put: 0.0;
at: 2 put: 0.0;
at: 3 put: 0.0;
at: 4 put: 0.0;
at: 5 put: 0.0;
at: 6 put: extent y asFloat;
at: 7 put: 0.0;
at: 8 put: 1.0;
at: 9 put: extent x asFloat;
at: 10 put: extent y asFloat;
at: 11 put: 1.0;
at: 12 put: 1.0;
at: 13 put: extent x asFloat;
at: 14 put: 0.0;
at: 15 put: 1.0;
at: 16 put: 0.0.
^true
]