[DEV] new button shader system ==> must be reworked

share/theme/default/widgetButton.frag

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+#ifdef GL_ES
+precision mediump float;
+precision mediump int;
+#endif
+
+uniform float  EW_sizeBorder;
+uniform float  EW_sizePadding;
+uniform vec2   EW_size;
+uniform vec4   EW_posText;
+uniform int    EW_state;
+/*
+struct displayProperty {
+	vec4  colorBackGround;
+	vec4  colorForeGround;
+	vec4  colorBorder;
+	float sizeBorder;
+	vec2  sizePaddingOut;
+	vec2  sizePaddingIn;
+	
+};
+uniform displayProperty EW_buttonProperty;
+*/
+// transmit from the vertex shader
+varying vec2  v_position; // interpolated position ...
+// internal static define
+vec4  S_colorBg = vec4(0.0);
+vec4  S_colorFg = vec4(0.5,0.5,0.5,0.8);
+vec4  S_colorBorder = vec4(0.0,0.0,0.0,1.0);
+
+
+void main(void) {
+	float specialBorder = EW_sizeBorder+EW_sizePadding;
+	vec2  endStart = EW_size - vec2(EW_sizePadding) - vec2(EW_sizeBorder);
+	vec2  endStop  = EW_size - vec2(EW_sizePadding);
+	if(    v_position.x>  EW_sizePadding
+	    && v_position.y>  EW_sizePadding
+	    && v_position.x<= endStop.x
+	    && v_position.y<= endStop.y
+	  ) {
+		if(    v_position.x<= specialBorder
+		    || v_position.y<= specialBorder
+		    || v_position.x>  endStart.x
+		    || v_position.y>  endStart.y
+		  ) {
+			gl_FragColor = S_colorBorder;
+		} else {
+			gl_FragColor = S_colorFg;
+		}
+	} else {
+		gl_FragColor = S_colorBg;
+	}
+}
+

share/theme/default/widgetButton.prog

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+widgetButton.vert
+widgetButton.frag

share/theme/default/widgetButton.vert

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+#ifdef GL_ES
+precision mediump float;
+precision mediump int;
+#endif
+
+// Input :
+attribute vec2 EW_coord2d;
+uniform mat4   EW_MatrixTransformation;
+
+// output :
+varying vec2  v_position;       // This will be passed into the fragment shader.
+
+void main(void) {
+	gl_Position = EW_MatrixTransformation * vec4(EW_coord2d, 0.0, 1.0);
+	// transmit position of the curent element (intermolated ...)
+	v_position = EW_coord2d;
+}