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Overview
Comment:Test case for text widget
Timelines: family | ancestors | descendants | both | trunk
Files: files | file ages | folders
SHA1: 2afe3e3af74db7949e1dab28559ad8fe3a4f731d
User & Date: bernd 2013-11-27 22:22:10.743
Context
2013-11-27
22:31
Freetype-gl*.fs properly linked check-in: 7cd8045508 user: bernd tags: trunk
22:22
Test case for text widget check-in: 2afe3e3af7 user: bernd tags: trunk
00:21
Uniform program for text and normal textures check-in: 2e267bcf9f user: bernd tags: trunk
Changes
Unified Diff Ignore Whitespace Patch
Changes to freetype-gl/Makefile.am.
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## flags are passed to the compiler for both C and C++, in addition to the
## language-specific options.
AM_CPPFLAGS = $(EXAMPLE_CFLAGS) -I/usr/include/freetype2 -I/usr/include/glib-2.0 -I/usr/lib64/glib-2.0/include/ -I/home/bernd/proj/freetype2-android/include

lib_LTLIBRARIES = libfreetype-gl.la
libfreetype_gl_la_SOURCES = texture-atlas.c texture-font.c vector.c
include_HEADERS = freetype-gl.h
libfreetype_gl_la_LIBADD = -lm -l@LIBGL@ -L. -lfreetype -lz -lglib-2.0 @LIBOBJS@








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## flags are passed to the compiler for both C and C++, in addition to the
## language-specific options.
AM_CPPFLAGS = $(EXAMPLE_CFLAGS) -I/usr/include/freetype2 -I/usr/include/glib-2.0 -I/usr/lib64/glib-2.0/include/ -I/home/bernd/proj/freetype2-android/include

lib_LTLIBRARIES = libfreetype-gl.la
libfreetype_gl_la_SOURCES = texture-atlas.c texture-font.c vector.c
include_HEADERS = freetype-gl.h
libfreetype_gl_la_LIBADD = -lm -l@LIBGL@ -L. -lfreetype -lz -lglib-2.0 @LIBADD@
Changes to freetype-gl/configure.ac.
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AC_CONFIG_HEADERS([config.h])
AC_PROG_CC
AM_PROG_AR
LT_INIT

case $CC in
     *android*)
	LIBOBJS="-llog -lglib-android-1.0"
	LIBGL=GLESv2
	;;
     *)
	LIBGL=GL
	;;
esac
AC_SUBST(LIBOBJS)
AC_SUBST(LIBGL)

AC_CONFIG_FILES([Makefile])
AC_OUTPUT








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AC_CONFIG_HEADERS([config.h])
AC_PROG_CC
AM_PROG_AR
LT_INIT

case $CC in
     *android*)
	LIBADD="-llog -lglib-android-1.0"
	LIBGL=GLESv2
	;;
     *)
	LIBGL=GL
	;;
esac
AC_SUBST(LIBADD)
AC_SUBST(LIBGL)

AC_CONFIG_FILES([Makefile])
AC_OUTPUT
Changes to gles2/ftgl-helper.fs.
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." Textur in Atlas: " atlas texture_atlas_t-id l@ . cr
: atlas-tex  atlas texture_atlas_t-id l@ dup to current-tex
    GL_TEXTURE_2D swap glBindTexture ;

\ render font into vertex buffers

2 sfloats buffer: penxy
Variable color $FFC0A000 color !

: xy, { glyph -- }
    penxy sf@ penxy sfloat+ sf@ { f: xp f: yp }
    glyph texture_glyph_t-offset_x l@ s>f
    glyph texture_glyph_t-offset_y l@ s>f { f: xo f: yo }
    glyph texture_glyph_t-width  l@ s>f
    glyph texture_glyph_t-height l@ s>f { f: w f: h }    








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." Textur in Atlas: " atlas texture_atlas_t-id l@ . cr
: atlas-tex  atlas texture_atlas_t-id l@ dup to current-tex
    GL_TEXTURE_2D swap glBindTexture ;

\ render font into vertex buffers

2 sfloats buffer: penxy
Variable color $FFC0A0FF color !

: xy, { glyph -- }
    penxy sf@ penxy sfloat+ sf@ { f: xp f: yp }
    glyph texture_glyph_t-offset_x l@ s>f
    glyph texture_glyph_t-offset_y l@ s>f { f: xo f: yo }
    glyph texture_glyph_t-width  l@ s>f
    glyph texture_glyph_t-height l@ s>f { f: w f: h }
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	I xc@+ swap >r xchar@xy r>
    I - +LOOP  drop ;

: load-glyphs ( -- )
    font
    "#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_`abcdefghijklmnopqrstuvwxyz{|}~\0" >wide$ drop texture_font_load_glyphs drop ;

GL_FRAGMENT_SHADER shader: textFragmentShader
#precision
uniform vec3 u_LightPos;        // The position of the light in eye space.
uniform sampler2D u_Texture;    // The input texture.
uniform float u_Ambient;        // ambient lighting level
 
varying vec3 v_Position;        // Interpolated position for this fragment.
varying vec4 v_Color;           // This is the color from the vertex shader interpolated across the
                                // triangle per fragment.
varying vec3 v_Normal;          // Interpolated normal for this fragment.
varying vec2 v_TexCoordinate;   // Interpolated texture coordinate per fragment.
 
// The entry point for our fragment shader.
void main()
{
    gl_FragColor = texture2D(u_Texture, v_TexCoordinate);
//    gl_FragColor.rgb = v_Color.rgb;
}

' VertexShader ' textFragmentShader create-program Value textprogram
textprogram init

: <render ( -- )
    textprogram glUseProgram

    .01e 100e 100e >ap
    atlas-tex v0 i0 ;

: render> ( -- )  GL_TRIANGLES draw-elements ;


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	I xc@+ swap >r xchar@xy r>
    I - +LOOP  drop ;

: load-glyphs ( -- )
    font
    "#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_`abcdefghijklmnopqrstuvwxyz{|}~\0" >wide$ drop texture_font_load_glyphs drop ;





















program init

: <render ( -- )
    program glUseProgram
    1-bias set-color+
    .01e 100e 100e >ap
    atlas-tex v0 i0 ;

: render> ( -- )  GL_TRIANGLES draw-elements
    ( Coloradd 0e fdup fdup fdup glUniform4f ) ;

previous previous
Changes to gles2/ftgl-sample.fs. 
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\ freetype GL example

require gl-helper.fs
[IFUNDEF] android window-init [THEN]

require ftgl-helper.fs

\ Demo Toplevel

also freetype-gl
also opengl




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\ freetype GL example

require gl-helper.fs
[IFUNDEF] android helper-init [THEN]

require ftgl-helper.fs

\ Demo Toplevel

also freetype-gl
also opengl
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Changes to gles2/gl-helper.fs.
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}

GL_FRAGMENT_SHADER shader: FragmentShader
#precision
uniform vec3 u_LightPos;        // The position of the light in eye space.
uniform sampler2D u_Texture;    // The input texture.
uniform float u_Ambient;        // ambient lighting level

 
varying vec3 v_Position;        // Interpolated position for this fragment.
varying vec4 v_Color;           // This is the color from the vertex shader interpolated across the
                                // triangle per fragment.
varying vec3 v_Normal;          // Interpolated normal for this fragment.
varying vec2 v_TexCoordinate;   // Interpolated texture coordinate per fragment.
 








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}

GL_FRAGMENT_SHADER shader: FragmentShader
#precision
uniform vec3 u_LightPos;        // The position of the light in eye space.
uniform sampler2D u_Texture;    // The input texture.
uniform float u_Ambient;        // ambient lighting level
uniform vec4 u_Coloradd;        // color bias for texture
 
varying vec3 v_Position;        // Interpolated position for this fragment.
varying vec4 v_Color;           // This is the color from the vertex shader interpolated across the
                                // triangle per fragment.
varying vec3 v_Normal;          // Interpolated normal for this fragment.
varying vec2 v_TexCoordinate;   // Interpolated texture coordinate per fragment.
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    // Add attenuation.
    diffuse = diffuse * (1.0 / (1.0 + (0.10 * distance)));
 
    // Add ambient lighting
    diffuse = (diffuse * ( 1.0 - u_Ambient )) + u_Ambient;
 
    // Multiply the color by the diffuse illumination level and texture value to get final output color.

    gl_FragColor = vec4(diffuse, diffuse, diffuse, 1.0) * v_Color * texture2D(u_Texture, v_TexCoordinate);
    // vec4 pixel = (v_Color * texture2D(u_Texture, v_TexCoordinate));
    // gl_FragColor = vec4(pixel.rgb, pixel.a);
    // gl_FragColor = texture2D(u_Texture, v_TexCoordinate);
    // gl_FragColor = (v_Color * diffuse);
    // gl_FragColor = v_Color;
}


0 Value MVPMatrix
0 Value MVMatrix
0 Value LightPos
0 Value Texture
0 Value ambient

0 Value program

: create-program { vs-xt fs-xt -- program }
    glCreateProgram dup >r IF
	r@ vs-xt execute glAttachShader
	r@ fs-xt execute glAttachShader
	vs-xt r@ >bindattrib
	r@ glLinkProgram THEN
    r> ;

[IFDEF] GL_TEXTURE_EXTERNAL_OES
GL_FRAGMENT_SHADER shader: oesShader
#extension GL_OES_EGL_image_external : require
#precision
uniform vec3 u_LightPos;        // The position of the light in eye space.
uniform samplerExternalOES u_Texture;
uniform float u_Ambient;        // ambient lighting level

 
varying vec3 v_Position;        // Interpolated position for this fragment.
varying vec4 v_Color;           // This is the color from the vertex shader interpolated across the
                                // triangle per fragment.
varying vec3 v_Normal;          // Interpolated normal for this fragment.
varying vec2 v_TexCoordinate;   // Interpolated texture coordinate per fragment.
void main() {








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    // Add attenuation.
    diffuse = diffuse * (1.0 / (1.0 + (0.10 * distance)));
 
    // Add ambient lighting
    diffuse = (diffuse * ( 1.0 - u_Ambient )) + u_Ambient;
 
// Multiply the color by the diffuse illumination level and texture value to get final output color.
    vec4 texture = texture2D(u_Texture, v_TexCoordinate) + u_Coloradd;
    gl_FragColor = vec4(diffuse, diffuse, diffuse, 1.0) * v_Color * texture;
    // vec4 pixel = (v_Color * texture2D(u_Texture, v_TexCoordinate));
    // gl_FragColor = vec4(pixel.rgb, pixel.a);
    // gl_FragColor = texture2D(u_Texture, v_TexCoordinate);
    // gl_FragColor = (v_Color * diffuse);
    // gl_FragColor = v_Color;
}


0 Value MVPMatrix
0 Value MVMatrix
0 Value LightPos
0 Value Texture
0 Value ambient
0 Value Coloradd
0 Value program

: create-program { vs-xt fs-xt -- program }
    glCreateProgram dup >r IF
	r@ vs-xt execute glAttachShader
	r@ fs-xt execute glAttachShader
	vs-xt r@ >bindattrib
	r@ glLinkProgram THEN
    r> ;

[IFDEF] GL_TEXTURE_EXTERNAL_OES
GL_FRAGMENT_SHADER shader: oesShader
#extension GL_OES_EGL_image_external : require
#precision
uniform vec3 u_LightPos;        // The position of the light in eye space.
uniform samplerExternalOES u_Texture;
uniform float u_Ambient;        // ambient lighting level
uniform vec4 u_Colorad;         // color bias for texture
 
varying vec3 v_Position;        // Interpolated position for this fragment.
varying vec4 v_Color;           // This is the color from the vertex shader interpolated across the
                                // triangle per fragment.
varying vec3 v_Normal;          // Interpolated normal for this fragment.
varying vec2 v_TexCoordinate;   // Interpolated texture coordinate per fragment.
void main() {
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: clear ( -- )
    GL_DEPTH_BUFFER_BIT GL_COLOR_BUFFER_BIT or glClear ;

: sf,  ( float -- )  here 1 sfloats allot sf! ;
: sf!+ ( float addr -- addr' )  dup sf! sfloat+ ;






Create unit-matrix
1.0e sf, 0.0e sf, 0.0e sf, 0.0e sf,
0.0e sf, 1.0e sf, 0.0e sf, 0.0e sf,
0.0e sf, 0.0e sf, 1.0e sf, 0.0e sf,
0.0e sf, 0.0e sf, 0.0e sf, 1.0e sf,

unit-matrix 12 sfloats + Constant x-pos








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: clear ( -- )
    GL_DEPTH_BUFFER_BIT GL_COLOR_BUFFER_BIT or glClear ;

: sf,  ( float -- )  here 1 sfloats allot sf! ;
: sf!+ ( float addr -- addr' )  dup sf! sfloat+ ;

Create z-bias
0e sf, 0e sf, 0e sf, 0e sf,
Create 1-bias
1e sf, 1e sf, 1e sf, 0e sf,

Create unit-matrix
1.0e sf, 0.0e sf, 0.0e sf, 0.0e sf,
0.0e sf, 1.0e sf, 0.0e sf, 0.0e sf,
0.0e sf, 0.0e sf, 1.0e sf, 0.0e sf,
0.0e sf, 0.0e sf, 0.0e sf, 1.0e sf,

unit-matrix 12 sfloats + Constant x-pos
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	I 4 sfloats bounds DO
	    I sf@ f.
	1 sfloats +LOOP cr
    4 sfloats +LOOP ;

: set-matrix ( addr handle -- ) swap >r
    1 false r> glUniformMatrix4fv ;



: >ortho { f: near f: far f: left f: right f: top f: bottom -- }
    ap-matrix
    near f2* right left f- f/ sf!+ 0e sf!+ 0e sf!+ 0e sf!+
    0e sf!+ near f2* top bottom f- f/ sf!+ 0e sf!+ 0e sf!+
    right left f+ right left f- f/ sf!+
    top bottom f+ top bottom f- f/ sf!+








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	I 4 sfloats bounds DO
	    I sf@ f.
	1 sfloats +LOOP cr
    4 sfloats +LOOP ;

: set-matrix ( addr handle -- ) swap >r
    1 false r> glUniformMatrix4fv ;

: set-color+ ( addr -- )  Coloradd 1 rot glUniform4fv ;

: >ortho { f: near f: far f: left f: right f: top f: bottom -- }
    ap-matrix
    near f2* right left f- f/ sf!+ 0e sf!+ 0e sf!+ 0e sf!+
    0e sf!+ near f2* top bottom f- f/ sf!+ 0e sf!+ 0e sf!+
    right left f+ right left f- f/ sf!+
    top bottom f+ top bottom f- f/ sf!+
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    GL_SRC_ALPHA GL_ONE_MINUS_SRC_ALPHA glBlendFunc
    program glUseProgram
    program "u_MVPMatrix\0" drop glGetUniformLocation to MVPMatrix
    program "u_MVMatrix\0" drop glGetUniformLocation to MVMatrix
    program "u_LightPos\0" drop glGetUniformLocation to LightPos
    program "u_Texture\0" drop glGetUniformLocation to Texture
    program "u_Ambient\0" drop glGetUniformLocation to Ambient

    GL_UNPACK_ALIGNMENT 1 glPixelStorei
    GL_TEXTURE0 glActiveTexture
    none-tex no-texture
    Texture 0 glUniform1i
    Ambient 1 ambient% glUniform1fv
    LightPos 0.0e 0.0e -0.3e glUniform3f

    .01e 100e dpy-w @ dpy-h @ min s>f f2/ 100 fm* >ap ;

: 2d-vertex ( index addr -- ) >r
    dup 2 GL_FLOAT  0 0 r> glVertexAttribPointer
    glEnableVertexAttribArray ;

: 3d-vertex ( index addr -- ) >r








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    GL_SRC_ALPHA GL_ONE_MINUS_SRC_ALPHA glBlendFunc
    program glUseProgram
    program "u_MVPMatrix\0" drop glGetUniformLocation to MVPMatrix
    program "u_MVMatrix\0" drop glGetUniformLocation to MVMatrix
    program "u_LightPos\0" drop glGetUniformLocation to LightPos
    program "u_Texture\0" drop glGetUniformLocation to Texture
    program "u_Ambient\0" drop glGetUniformLocation to Ambient
    program "u_Coloradd\0" drop glGetUniformLocation to Coloradd
    GL_UNPACK_ALIGNMENT 1 glPixelStorei
    GL_TEXTURE0 glActiveTexture
    none-tex no-texture
    Texture 0 glUniform1i
    Ambient 1 ambient% glUniform1fv
    LightPos 0.0e 0.0e -0.3e glUniform3f
    z-bias set-color+
    .01e 100e dpy-w @ dpy-h @ min s>f f2/ 100 fm* >ap ;

: 2d-vertex ( index addr -- ) >r
    dup 2 GL_FLOAT  0 0 r> glVertexAttribPointer
    glEnableVertexAttribArray ;

: 3d-vertex ( index addr -- ) >r
︙︙
Added gles2/widgets-test.fs. 
























































































































































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\ simple tests for widgets code

require widgets.fs

also minos

frame new value f1
frame new value f2
frame new value f3
frame new value f4
frame new value f5
frame new value f6
text new value f7
text new value f8
f1 >o rdrop
0 x ! 0 y ! dpy-w @ 4 / w ! dpy-h @ 2/ d !
32 border ! $FFFFFFFF frame-color !
button2

f2 >o rdrop
dpy-w @ 2/ x ! 0 y ! dpy-w @ 2/ w ! dpy-h @ 19 20 */ d !
32 border ! $FF7FFFFF frame-color !
button3

f3 >o rdrop
0 x ! dpy-h @ 2/ y ! dpy-w @ 2/ w ! dpy-h @ 2/ 2/ d !
16 border ! $FFFF7FFF frame-color !
button1

f4 >o rdrop
0 x ! dpy-h @ 3 4 */ y ! dpy-w @ 4 / w ! dpy-h @ 5 / d !
32 border ! $FF7F7FFF frame-color !
button1

f5 >o rdrop
dpy-w @ 4 / x ! dpy-h @ 3 4 */ y ! dpy-w @ 4 / w ! dpy-h @ 5 / d !
8 border ! $7FFF7FFF frame-color !
button1

f6 >o rdrop
dpy-w @ 4 / x ! 0 y ! dpy-w @ 4 / w ! dpy-h @ 2/ d !
16 border ! $7FFFFFFF frame-color !
button2

also freetype-gl
48e FConstant fontsize#
atlas [IFDEF] android  "/system/fonts/DroidSans.ttf\0" drop
[ELSE] "/usr/share/fonts/truetype/LiberationSans-Regular.ttf\0" drop 
[THEN]
fontsize# texture_font_new Value font1

atlas [IFDEF] android  "/system/fonts/DroidSansFallback.ttf\0" drop
[ELSE] "/usr/share/fonts/truetype/gkai00mp.ttf\0" drop
[THEN]
fontsize# texture_font_new Value font2
previous

f7 >o rdrop
8 x ! dpy-h @ 4 / y ! "Dös isch a Tägscht!" text-string $!
$884400FF text-color !  font1 text-font !

f8 >o rdrop
8 x ! dpy-h @ 5 8 */ y ! "这是一个文本：在德语说" text-string $!
$004488FF text-color !  font2 text-font !

<draw0 draw0>
<draw1
f1 >o draw o> f7 >o draw o> f2 >o draw o> f3 >o draw o>
f8 >o draw o> f4 >o draw o> f5 >o draw o> f6 >o draw o>
draw1>
<draw2
f1 >o draw o> f7 >o draw o> f2 >o draw o> f3 >o draw o>
f8 >o draw o> f4 >o draw o> f5 >o draw o> f6 >o draw o>
draw2>
sync
Added gles2/widgets.fs. 




























































































































































































































































































































































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\ MINOS2 widget basis

\ A MINOS2 widget is composed of drawable elements, boxes and actors.
\ to make things easier, neither drawable elements nor boxes need an actor.

require gl-helper.fs
require ftgl-helper.fs
require mini-oof2.fs

get-current
also [IFDEF] android android [THEN]
also opengl

helper-init

vocabulary minos  also minos definitions

0 Value layer \ drawing layer

object class
    field: caller-w
    method clicked
    method keyed
    method inside?
    method focus
    method defocus
    method show
    method hide
    method get
    method set
    method show-you
end-class actor

object class
    field: next-w
    field: parent-w
    field: x
    field: y
    field: w
    field: h \ above baseline
    field: d \ below baseline
    method draw ( -- )
    method hglue
    method vglue
    method hglue@ \ cached variant
    method vglue@ \ cached variant
    method xywh
    method xywhd
    method !size \ set your own size
end-class widget

:noname x @ y @ h @ - w @ h @ d @ + ; widget to xywh
:noname x @ y @ w @ h @ d @ ; widget to xywhd
' noop widget to !size

widget class
    field: child-w
    field: act
    method resized
    method map
end-class box

tex: style-tex \ 8 x 8 subimages, each sized 128x128
style-tex 1024 dup rgba-newtex

\ tile widget

widget class
    field: frame#
    field: frame-color
end-class tile

8 Value style-w#
8 Value style-h#

: #>st ( x y frame -- ) \ using frame#
    style-w# /mod
    s>f f+ style-w# fm/ fswap
    s>f f+ style-h# fm/ fswap >st ;

: draw-rectangle { f: x1 f: y1 f: x2 f: y2 -- }
    i? >v
    x1 y2 >xy frame-color @ rgba>c n> 0e 1e frame# @ #>st v+
    x2 y2 >xy frame-color @ rgba>c n> 1e 1e frame# @ #>st v+
    x2 y1 >xy frame-color @ rgba>c n> 1e 0e frame# @ #>st v+
    x1 y1 >xy frame-color @ rgba>c n> 0e 0e frame# @ #>st v+
    v> dup i, dup 1+ i, dup 2 + i, dup i, dup 2 + i, 3 + i, ;
: tile-draw ( -- ) layer 1 <> ?EXIT
    xywh { x y w h }
    x s>f y s>f x w + s>f y h + s>f
    draw-rectangle GL_TRIANGLES draw-elements ;

' tile-draw tile is draw

\ frame widget

tile class
    field: border
end-class frame

Create button-st  0e sf, 0.25e sf, 0.75e sf, 1e sf,
DOES>  swap sfloats + sf@ ;
: button-border ( n -- gray )  dup 2/ xor ;
: >border ( x b i w -- r ) >r
    button-border >r
    r@ 1 and 0= IF drop 0       THEN
    r> 2 and    IF negate r@ +  THEN  + s>f  rdrop ;

: frame-draw ( -- ) layer 1 <> ?EXIT
    frame# @ frame-color @ border @ xywh { f c b x y w h }
    i>off >v
    4 0 DO
	4 0 DO
	    x b I w >border  y b J h >border >xy
	    c rgba>c  n>
	    I button-st J button-st f #>st v+
	LOOP
    LOOP
    v>
    9 0  DO
	4 quad  1 I 3 mod 2 = - i-off +!
    LOOP
; ' frame-draw frame to draw

\ text widget

widget class
    field: text-string
    field: text-font
    field: text-color
end-class text

: text-draw ( -- ) layer 2 <> ?EXIT
    x @ s>f penxy sf!  y @ s>f penxy sfloat+ sf!
    text-font @ to font  text-color @ color !
    text-string $@ render-string ;
: text-!size ( -- )
    text-string $@ layout-string
    f>s d ! f>s h ! f>s w ! ;
' text-draw text to draw
' text-!size text to !size

\ draw wrapper

: <draw0 ( -- )  0 to layer
    -1e 1e >apxy
    .01e 100e 100e >ap
    0.01e 0.02e 0.15e 1.0e glClearColor
    Ambient 1 ambient% glUniform1fv ;
: draw0> ( -- ) clear v0 i0 ;

: <draw1 ( -- )  1 to layer
    z-bias set-color+
    program glUseProgram  style-tex ;
: draw1> ( -- )  GL_TRIANGLES draw-elements v0 i0 ;

: <draw2 ( -- )  2 to layer
    1-bias set-color+
    program glUseProgram  atlas-tex ;
: draw2> ( -- )  GL_TRIANGLES draw-elements v0 i0 ;

Variable style-i#

: load-style ( addr u -- n )  style-tex
    style-i# @ 8 /mod 128 * >r 128 * r> 2swap load-subtex 2drop
    style-i# @ 1 style-i# +! ;
: style: load-style Create , DOES> @ frame# ! ;

"button.png" style: button1
"button2.png" style: button2
"button3.png" style: button3

previous previous previous set-current
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\ simple tests for widgets code

require widgets.fs

also minos

<draw
frame new value f1
frame new value f2
frame new value f3
frame new value f4
frame new value f5
frame new value f6


f1 >o rdrop
0 x ! 0 y ! dpy-w @ 4 / w ! dpy-h @ 2/ d !
32 border ! $FFFFFFFF frame-color !
button2
draw
f2 >o rdrop
dpy-w @ 2/ x ! 0 y ! dpy-w @ 2/ w ! dpy-h @ 19 20 */ d !
32 border ! $FF7FFFFF frame-color !
button3
draw
f3 >o rdrop
0 x ! dpy-h @ 2/ y ! dpy-w @ 2/ w ! dpy-h @ 2/ 2/ d !
16 border ! $FFFF7FFF frame-color !
button1
draw
f4 >o rdrop
0 x ! dpy-h @ 3 4 */ y ! dpy-w @ 4 / w ! dpy-h @ 5 / d !
32 border ! $FF7F7FFF frame-color !
button1
draw
f5 >o rdrop
dpy-w @ 4 / x ! dpy-h @ 3 4 */ y ! dpy-w @ 4 / w ! dpy-h @ 5 / d !
8 border ! $7FFF7FFF frame-color !
button1
draw
f6 >o rdrop
dpy-w @ 4 / x ! 0 y ! dpy-w @ 4 / w ! dpy-h @ 2/ d !
16 border ! $7FFFFFFF frame-color !
button2
draw draw>











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\ simple tests for widgets code

require widgets.fs

also minos


frame new value f1
frame new value f2
frame new value f3
frame new value f4
frame new value f5
frame new value f6
text new value f7
text new value f8
f1 >o rdrop
0 x ! 0 y ! dpy-w @ 4 / w ! dpy-h @ 2/ d !
32 border ! $FFFFFFFF frame-color !
button2

f2 >o rdrop
dpy-w @ 2/ x ! 0 y ! dpy-w @ 2/ w ! dpy-h @ 19 20 */ d !
32 border ! $FF7FFFFF frame-color !
button3

f3 >o rdrop
0 x ! dpy-h @ 2/ y ! dpy-w @ 2/ w ! dpy-h @ 2/ 2/ d !
16 border ! $FFFF7FFF frame-color !
button1

f4 >o rdrop
0 x ! dpy-h @ 3 4 */ y ! dpy-w @ 4 / w ! dpy-h @ 5 / d !
32 border ! $FF7F7FFF frame-color !
button1

f5 >o rdrop
dpy-w @ 4 / x ! dpy-h @ 3 4 */ y ! dpy-w @ 4 / w ! dpy-h @ 5 / d !
8 border ! $7FFF7FFF frame-color !
button1

f6 >o rdrop
dpy-w @ 4 / x ! 0 y ! dpy-w @ 4 / w ! dpy-h @ 2/ d !
16 border ! $7FFFFFFF frame-color !
button2

also freetype-gl
48e FConstant fontsize#
atlas [IFDEF] android  "/system/fonts/DroidSans.ttf\0" drop
[ELSE] "/usr/share/fonts/truetype/LiberationSans-Regular.ttf\0" drop 
[THEN]
fontsize# texture_font_new Value font1

atlas [IFDEF] android  "/system/fonts/DroidSansFallback.ttf\0" drop
[ELSE] "/usr/share/fonts/truetype/gkai00mp.ttf\0" drop
[THEN]
fontsize# texture_font_new Value font2
previous

f7 >o rdrop
8 x ! dpy-h @ 4 / y ! "Dös isch a Tägscht!" text-string $!
$884400FF text-color !  font1 text-font !

f8 >o rdrop
8 x ! dpy-h @ 5 8 */ y ! "这是一个文本：在德语说" text-string $!
$004488FF text-color !  font2 text-font !

<draw0 draw0>
<draw1
f1 >o draw o> f7 >o draw o> f2 >o draw o> f3 >o draw o>
f8 >o draw o> f4 >o draw o> f5 >o draw o> f6 >o draw o>
draw1>
<draw2
f1 >o draw o> f7 >o draw o> f2 >o draw o> f3 >o draw o>
f8 >o draw o> f4 >o draw o> f5 >o draw o> f6 >o draw o>
draw2>
sync
Changes to widgets.fs.
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also [IFDEF] android android [THEN]
also opengl

helper-init

vocabulary minos  also minos definitions



object class
    field: caller-w
    method clicked
    method keyed
    method inside?
    method focus
    method defocus








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also [IFDEF] android android [THEN]
also opengl

helper-init

vocabulary minos  also minos definitions

0 Value layer \ drawing layer

object class
    field: caller-w
    method clicked
    method keyed
    method inside?
    method focus
    method defocus
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    field: next-w
    field: parent-w
    field: x
    field: y
    field: w
    field: h \ above baseline
    field: d \ below baseline
    method draw
    method hglue
    method vglue
    method hglue@ \ cached variant
    method vglue@ \ cached variant
    method xywh
    method xywhd

end-class widget

:noname x @ y @ h @ - w @ h @ d @ + ; widget to xywh
:noname x @ y @ w @ h @ d @ ; widget to xywhd


widget class
    field: child-w
    field: act
    method resized
    method map
end-class box

tex: style-tex \ 8 x 8 subimages, each sized 128x128
style-tex 1024 dup rgba-newtex



widget class
    field: frame#
    field: frame-color
end-class tile

8 Value style-w#








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    field: next-w
    field: parent-w
    field: x
    field: y
    field: w
    field: h \ above baseline
    field: d \ below baseline
    method draw ( -- )
    method hglue
    method vglue
    method hglue@ \ cached variant
    method vglue@ \ cached variant
    method xywh
    method xywhd
    method !size \ set your own size
end-class widget

:noname x @ y @ h @ - w @ h @ d @ + ; widget to xywh
:noname x @ y @ w @ h @ d @ ; widget to xywhd
' noop widget to !size

widget class
    field: child-w
    field: act
    method resized
    method map
end-class box

tex: style-tex \ 8 x 8 subimages, each sized 128x128
style-tex 1024 dup rgba-newtex

\ tile widget

widget class
    field: frame#
    field: frame-color
end-class tile

8 Value style-w#
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: draw-rectangle { f: x1 f: y1 f: x2 f: y2 -- }
    i? >v
    x1 y2 >xy frame-color @ rgba>c n> 0e 1e frame# @ #>st v+
    x2 y2 >xy frame-color @ rgba>c n> 1e 1e frame# @ #>st v+
    x2 y1 >xy frame-color @ rgba>c n> 1e 0e frame# @ #>st v+
    x1 y1 >xy frame-color @ rgba>c n> 0e 0e frame# @ #>st v+
    v> dup i, dup 1+ i, dup 2 + i, dup i, dup 2 + i, 3 + i, ;
: tile-draw ( -- )
    xywh { x y w h }
    x s>f y s>f x w + s>f y h + s>f
    draw-rectangle GL_TRIANGLES draw-elements ;

' tile-draw tile is draw



tile class
    field: border
end-class frame

Create button-st  0e sf, 0.25e sf, 0.75e sf, 1e sf,
DOES>  swap sfloats + sf@ ;
: button-border ( n -- gray )  dup 2/ xor ;
: >border ( x b i w -- r ) >r
    button-border >r
    r@ 1 and 0= IF drop 0       THEN
    r> 2 and    IF negate r@ +  THEN  + s>f  rdrop ;

: frame-draw ( -- )
    frame# @ frame-color @ border @ xywh { f c b x y w h }
    i>off >v
    4 0 DO
	4 0 DO
	    x b I w >border  y b J h >border >xy
	    c rgba>c  n>
	    I button-st J button-st f #>st v+
	LOOP
    LOOP
    v>
    9 0  DO
	4 quad  1 I 3 mod 2 = - i-off +!
    LOOP
; ' frame-draw frame to draw









: <draw ( -- )  v0 i0








    program glUseProgram  style-tex



    -1e 1e >apxy
    .01e 100e 100e >ap
    0.6e 0.4e 0.2e 1.0e glClearColor clear
    Ambient 1 ambient% glUniform1fv ;





: draw> ( -- )  GL_TRIANGLES draw-elements sync v0 i0 ;






Variable style-i#

: load-style ( addr u -- n )  style-tex
    style-i# @ 8 /mod 128 * >r 128 * r> 2swap load-subtex 2drop
    style-i# @ 1 style-i# +! ;
: style: load-style Create , DOES> @ frame# ! ;

"button.png" style: button1
"button2.png" style: button2
"button3.png" style: button3

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: draw-rectangle { f: x1 f: y1 f: x2 f: y2 -- }
    i? >v
    x1 y2 >xy frame-color @ rgba>c n> 0e 1e frame# @ #>st v+
    x2 y2 >xy frame-color @ rgba>c n> 1e 1e frame# @ #>st v+
    x2 y1 >xy frame-color @ rgba>c n> 1e 0e frame# @ #>st v+
    x1 y1 >xy frame-color @ rgba>c n> 0e 0e frame# @ #>st v+
    v> dup i, dup 1+ i, dup 2 + i, dup i, dup 2 + i, 3 + i, ;
: tile-draw ( -- ) layer 1 <> ?EXIT
    xywh { x y w h }
    x s>f y s>f x w + s>f y h + s>f
    draw-rectangle GL_TRIANGLES draw-elements ;

' tile-draw tile is draw

\ frame widget

tile class
    field: border
end-class frame

Create button-st  0e sf, 0.25e sf, 0.75e sf, 1e sf,
DOES>  swap sfloats + sf@ ;
: button-border ( n -- gray )  dup 2/ xor ;
: >border ( x b i w -- r ) >r
    button-border >r
    r@ 1 and 0= IF drop 0       THEN
    r> 2 and    IF negate r@ +  THEN  + s>f  rdrop ;

: frame-draw ( -- ) layer 1 <> ?EXIT
    frame# @ frame-color @ border @ xywh { f c b x y w h }
    i>off >v
    4 0 DO
	4 0 DO
	    x b I w >border  y b J h >border >xy
	    c rgba>c  n>
	    I button-st J button-st f #>st v+
	LOOP
    LOOP
    v>
    9 0  DO
	4 quad  1 I 3 mod 2 = - i-off +!
    LOOP
; ' frame-draw frame to draw

\ text widget

widget class
    field: text-string
    field: text-font
    field: text-color
end-class text

: text-draw ( -- ) layer 2 <> ?EXIT
    x @ s>f penxy sf!  y @ s>f penxy sfloat+ sf!
    text-font @ to font  text-color @ color !
    text-string $@ render-string ;
: text-!size ( -- )
    text-string $@ layout-string
    f>s d ! f>s h ! f>s w ! ;
' text-draw text to draw
' text-!size text to !size

\ draw wrapper

: <draw0 ( -- )  0 to layer
    -1e 1e >apxy
    .01e 100e 100e >ap
    0.01e 0.02e 0.15e 1.0e glClearColor
    Ambient 1 ambient% glUniform1fv ;
: draw0> ( -- ) clear v0 i0 ;

: <draw1 ( -- )  1 to layer
    z-bias set-color+
    program glUseProgram  style-tex ;
: draw1> ( -- )  GL_TRIANGLES draw-elements v0 i0 ;

: <draw2 ( -- )  2 to layer
    1-bias set-color+
    program glUseProgram  atlas-tex ;
: draw2> ( -- )  GL_TRIANGLES draw-elements v0 i0 ;

Variable style-i#

: load-style ( addr u -- n )  style-tex
    style-i# @ 8 /mod 128 * >r 128 * r> 2swap load-subtex 2drop
    style-i# @ 1 style-i# +! ;
: style: load-style Create , DOES> @ frame# ! ;

"button.png" style: button1
"button2.png" style: button2
"button3.png" style: button3

previous previous previous set-current
Fossil version [611144ddd9] 2025-05-16 13:52:48