"{ Package: 'stx:libview' }"
FontDescription subclass:#XftFontDescription
instanceVariableNames:'device fontId sharedDrawId closestFont minCode maxCode'
classVariableNames:'FC_FAMILY FC_STYLE FC_SLANT FC_WEIGHT FC_SIZE FC_ASPECT
FC_PIXEL_SIZE FC_SPACING FC_FOUNDRY FC_ANTIALIAS FC_HINTING
FC_HINT_STYLE FC_VERTICAL_LAYOUT FC_AUTOHINT FC_WIDTH FC_FILE
FC_INDEX FC_FT_FACE FC_RASTERIZER FC_OUTLINE FC_SCALABLE FC_SCALE
FC_DPI FC_RGBA FC_MINSPACE FC_SOURCE FC_CHARSET FC_LANG
FC_FONTVERSION FC_FULLNAME FC_FAMILYLANG FC_STYLELANG
FC_FULLNAMELANG FC_CAPABILITY FC_FONTFORMAT FC_EMBOLDEN
FC_EMBEDDED_BITMAP FC_DECORATIVE FC_LCD_FILTER FC_NAMELANG
FC_CHAR_WIDTH FC_CHAR_HEIGHT FC_MATRIX FC_WEIGHT_THIN
FC_WEIGHT_EXTRALIGHT FC_WEIGHT_ULTRALIGHT FC_WEIGHT_LIGHT
FC_WEIGHT_BOOK FC_WEIGHT_REGULAR FC_WEIGHT_NORMAL
FC_WEIGHT_MEDIUM FC_WEIGHT_DEMIBOLD FC_WEIGHT_SEMIBOLD
FC_WEIGHT_BOLD FC_WEIGHT_EXTRABOLD FC_WEIGHT_ULTRABOLD
FC_WEIGHT_BLACK FC_WEIGHT_HEAVY FC_WEIGHT_EXTRABLACK
FC_WEIGHT_ULTRABLACK FC_SLANT_ROMAN FC_SLANT_ITALIC
FC_SLANT_OBLIQUE FC_WIDTH_ULTRACONDENSED FC_WIDTH_EXTRACONDENSED
FC_WIDTH_CONDENSED FC_WIDTH_SEMICONDENSED FC_WIDTH_NORMAL
FC_WIDTH_SEMIEXPANDED FC_WIDTH_EXPANDED FC_WIDTH_EXTRAEXPANDED
FC_WIDTH_ULTRAEXPANDED FC_PROPORTIONAL FC_DUAL FC_MONO
FC_CHARCELL FC_RGBA_UNKNOWN FC_RGBA_RGB FC_RGBA_BGR FC_RGBA_VRGB
FC_RGBA_VBGR FC_RGBA_NONE FC_HINT_NONE FC_HINT_SLIGHT
FC_HINT_MEDIUM FC_HINT_FULL FC_LCD_NONE FC_LCD_DEFAULT
FC_LCD_LIGHT FC_LCD_LEGACY StXFace2FCWeightMap
StXStyle2FCSlantMap CachedFontList RecentlyUsedFonts'
poolDictionaries:''
category:'Graphics-Support'
!
Object subclass:#FCFontListParser
instanceVariableNames:'pipeStream lineStream currentDescription'
classVariableNames:''
poolDictionaries:''
privateIn:XftFontDescription
!
ExternalAddress subclass:#FCPatternHandle
instanceVariableNames:''
classVariableNames:''
poolDictionaries:''
privateIn:XftFontDescription
!
ExternalAddress subclass:#XftDrawHandle
instanceVariableNames:''
classVariableNames:''
poolDictionaries:''
privateIn:XftFontDescription
!
ExternalAddress subclass:#XftFontHandle
instanceVariableNames:''
classVariableNames:''
poolDictionaries:''
privateIn:XftFontDescription
!
!XftFontDescription primitiveDefinitions!
%{
/*
* includes, defines, structure definitions
* and typedefs come here.
*/
#undef True
#undef False
#undef Time
#define Time XTime
#ifdef XFT
extern OBJ __GLOBAL_GET_BY_NAME();
# define __HANDLE_VAL(type, externalAddress) \
((type)__externalAddressVal(externalAddress))
#define __HANDLE_NEW(ptr, __cls) \
({ \
OBJ handle; \
handle = __MKEXTERNALADDRESS(ptr); \
__InstPtr(handle)->o_class = \
__GLOBAL_GET_BY_NAME(__cls); \
handle; \
})
# define DISPLAY(x) __HANDLE_VAL(Display*, x)
# define SCREEN(x) ((int)(__intVal(x)))
# define DRAWABLE(x) __HANDLE_VAL(Drawable, x)
# define GC(x) __HANDLE_VAL(GC, x)
# define VISUAL(x) __HANDLE_VAL(Visual*, x)
# define COLORMAP(x) __HANDLE_VAL(Colormap, x)
/* FontConfig objects */
# define FC_PATTERN(x) __HANDLE_VAL(XftPattern*, x)
# define FC_PATTERN_HANDLE_NEW(x) __HANDLE_NEW(x, "XftFontDescription::FCPatternHandle")
/* Xft Objects */
# define XFT_FONT(x) __HANDLE_VAL(XftFont*, x)
# define XFT_FONT_HANDLE_NEW(x) __HANDLE_NEW(x, "XftFontDescription::XftFontHandle")
# define XFT_DRAW(x) __HANDLE_VAL(XftDraw*, x)
# define XFT_DRAW_HANDLE_NEW(x) __HANDLE_NEW(x, "XftFontDescription::XftDrawHandle")
# include <X11/Xft/Xft.h>
# include <X11/Xft/XftCompat.h>
#endif
%}
! !
!XftFontDescription class methodsFor:'documentation'!
documentation
"
WARNING: Unfinished.
Experimental implementation of custom font rendered using
Xft library (UNIX / X Window only), To actually use it,
add following definitions to the end of stx/configurations/myConf
(works on Ubuntu 12.10)
--- snip ---
XDEFS+=-DXFT
XINCLUDE+=$(shell pkg-config --cflags xft)
LIB_XFT=-l:libXft.so.2 -l:libfontconfig.so.1
--- snip --
NOTE: This class should be named XftFont, however then
there would be a name clash with XftFont structure
defined in Xft.h - therefore the class is named
XftFontDescription to avoid that name clash.
[author:]
Jan Vrany <jan.vrany@fit.cvut.cz>
[instance variables:]
[class variables:]
[see also:]
"
! !
!XftFontDescription class methodsFor:'initialization'!
flushListOfAvailableFonts
CachedFontList := nil.
"
XftFontDescription flushListOfAvailableFonts
"
!
initialize
"Invoked at system start or when the class is dynamically loaded."
" Taken from fontconfig,h "
FC_FAMILY := 'family'. "/* String */
FC_STYLE := 'style'. "/* String */
FC_SLANT := 'slant'. "/* Int */
FC_WEIGHT := 'weight'. "/* Int */
FC_SIZE := 'size'. "/* Double */
FC_ASPECT := 'aspect'. "/* Double */
FC_PIXEL_SIZE := 'pixelsize'. "/* Double */
FC_SPACING := 'spacing'. "/* Int */
FC_FOUNDRY := 'foundry'. "/* String */
FC_ANTIALIAS := 'antialias'. "/* Bool (depends) */
FC_HINTING := 'hinting'. "/* Bool (true) */
FC_HINT_STYLE := 'hintstyle'. "/* Int */
FC_VERTICAL_LAYOUT := 'verticallayout'. "/* Bool (false) */
FC_AUTOHINT := 'autohint'. "/* Bool (false) */
FC_WIDTH := 'width'. "/* Int */
FC_FILE := 'file'. "/* String */
FC_INDEX := 'index'. "/* Int */
FC_FT_FACE := 'ftface'. "/* FT_Face */
FC_RASTERIZER := 'rasterizer'. "/* String */
FC_OUTLINE := 'outline'. "/* Bool */
FC_SCALABLE := 'scalable'. "/* Bool */
FC_SCALE := 'scale'. "/* double */
FC_DPI := 'dpi'. "/* double */
FC_RGBA := 'rgba'. "/* Int */
FC_MINSPACE := 'minspace'. "/* Bool use minimum line spacing */
FC_SOURCE := 'source'. "/* String (deprecated) */
FC_CHARSET := 'charset'. "/* CharSet */
FC_LANG := 'lang'. "/* String RFC 3066 langs */
FC_FONTVERSION := 'fontversion'. "/* Int from 'head'.table */
FC_FULLNAME := 'fullname'. "/* String */
FC_FAMILYLANG := 'familylang'. "/* String RFC 3066 langs */
FC_STYLELANG := 'stylelang'. "/* String RFC 3066 langs */
FC_FULLNAMELANG := 'fullnamelang'. "/* String RFC 3066 langs */
FC_CAPABILITY := 'capability'. "/* String */
FC_FONTFORMAT := 'fontformat'. "/* String */
FC_EMBOLDEN := 'embolden'. "/* Bool - true if emboldening needed*/
FC_EMBEDDED_BITMAP := 'embeddedbitmap'."/* Bool - true to enable embedded bitmaps */
FC_DECORATIVE := 'decorative'. "/* Bool - true if style is a decorative variant */
FC_LCD_FILTER := 'lcdfilter'. "/* Int */
FC_NAMELANG := 'namelang'. "/* String RFC 3866 langs */
"Adjust outline rasterizer"
FC_CHAR_WIDTH := 'charwidth'."/* Int */
FC_CHAR_HEIGHT := 'charheight'."/* Int */
FC_MATRIX := 'matrix'. "/* FcMatrix */
FC_WEIGHT_THIN := 0.
FC_WEIGHT_EXTRALIGHT := 40.
FC_WEIGHT_ULTRALIGHT := FC_WEIGHT_EXTRALIGHT.
FC_WEIGHT_LIGHT := 50.
FC_WEIGHT_BOOK := 75.
FC_WEIGHT_REGULAR := 80.
FC_WEIGHT_NORMAL := FC_WEIGHT_REGULAR.
FC_WEIGHT_MEDIUM := 100.
FC_WEIGHT_DEMIBOLD := 180.
FC_WEIGHT_SEMIBOLD := FC_WEIGHT_DEMIBOLD.
FC_WEIGHT_BOLD := 200.
FC_WEIGHT_EXTRABOLD := 205.
FC_WEIGHT_ULTRABOLD := FC_WEIGHT_EXTRABOLD.
FC_WEIGHT_BLACK := 210.
FC_WEIGHT_HEAVY := FC_WEIGHT_BLACK.
FC_WEIGHT_EXTRABLACK := 215.
FC_WEIGHT_ULTRABLACK := FC_WEIGHT_EXTRABLACK.
FC_SLANT_ROMAN := 0.
FC_SLANT_ITALIC := 100.
FC_SLANT_OBLIQUE := 110.
FC_WIDTH_ULTRACONDENSED := 50.
FC_WIDTH_EXTRACONDENSED := 63.
FC_WIDTH_CONDENSED := 75.
FC_WIDTH_SEMICONDENSED := 87.
FC_WIDTH_NORMAL := 100.
FC_WIDTH_SEMIEXPANDED := 113.
FC_WIDTH_EXPANDED := 125.
FC_WIDTH_EXTRAEXPANDED := 150.
FC_WIDTH_ULTRAEXPANDED := 200.
FC_PROPORTIONAL := 0.
FC_DUAL := 90.
FC_MONO := 100.
FC_CHARCELL := 110.
"sub-pixel order"
FC_RGBA_UNKNOWN := 0.
FC_RGBA_RGB := 1.
FC_RGBA_BGR := 2.
FC_RGBA_VRGB := 3.
FC_RGBA_VBGR := 4.
FC_RGBA_NONE := 5.
"hinting style"
FC_HINT_NONE := 0.
FC_HINT_SLIGHT := 1.
FC_HINT_MEDIUM := 2.
FC_HINT_FULL := 3.
"LCD filter"
FC_LCD_NONE := 0.
FC_LCD_DEFAULT := 1.
FC_LCD_LIGHT := 2.
FC_LCD_LEGACY := 3.
StXFace2FCWeightMap := Dictionary withKeysAndValues:{
'thin'. FC_WEIGHT_THIN.
'light'. FC_WEIGHT_LIGHT.
'extralight'. FC_WEIGHT_EXTRALIGHT.
'ultralight'. FC_WEIGHT_ULTRALIGHT.
'light'. FC_WEIGHT_LIGHT.
'book'. FC_WEIGHT_BOOK.
'regular'. FC_WEIGHT_REGULAR.
'normal'. FC_WEIGHT_NORMAL.
'medium'. FC_WEIGHT_MEDIUM.
'demibold'. FC_WEIGHT_DEMIBOLD.
'semibold'. FC_WEIGHT_SEMIBOLD.
'bold'. FC_WEIGHT_BOLD.
'extrabold'. FC_WEIGHT_EXTRABOLD.
'ultrabold'. FC_WEIGHT_ULTRABOLD.
'black'. FC_WEIGHT_BLACK.
'heavy'. FC_WEIGHT_HEAVY.
'extrablack'. FC_WEIGHT_EXTRABLACK.
'ultrablack'. FC_WEIGHT_ULTRABLACK.
}.
StXStyle2FCSlantMap := Dictionary withKeysAndValues:{
'roman'. FC_SLANT_ROMAN.
'italic'. FC_SLANT_ITALIC.
'oblique'. FC_SLANT_OBLIQUE.
}.
"Modified: / 30-12-2013 / 19:48:41 / Jan Vrany <jan.vrany@fit.cvut.cz>"
! !
!XftFontDescription class methodsFor:'instance creation'!
family:familyString face:faceString style:styleString size:size sizeUnit:sizeUnit encoding:encoding
"returns a font for given family, face, style, size and the specified encoding.
The returned font is not associated to a specific device"
|proto|
CachedFontList notNil ifTrue:[
proto := CachedFontList
detect:[:fn |
fn family = familyString
and:[ fn face = faceString
and:[ (fn style = styleString
or:[ (fn style = 'oblique' and:[styleString = 'italic'])
or:[ (fn style = 'italic' and:[styleString = 'oblique']) ]]) ]]]
ifNone:nil.
proto notNil ifTrue:[
^ (proto shallowCopy)
setDevice: nil patternId: nil fontId: nil;
family:familyString face:faceString style:styleString size:size sizeUnit:sizeUnit encoding:encoding
].
].
^ super
family:familyString face:faceString style:styleString size:size sizeUnit:sizeUnit encoding:encoding
!
new
"/ self halt.
^ super new.
! !
!XftFontDescription class methodsFor:'examples'!
example1
"
XftFontDescription example1
"
|top textView|
top := StandardSystemView new.
top extent:300@200.
textView := EditTextView new.
textView origin:0.0 @ 0.0 corner:1.0 @ 1.0.
textView basicFont: (XftFontDescription family: 'DejaVu Sans' size: 16).
top addSubView:textView.
textView contents:('/etc/hosts' asFilename contentsOfEntireFile asText).
top open.
"Created: / 20-12-2013 / 00:04:57 / Jan Vrany <jan.vrany@fit.cvut.cz>"
"Modified: / 30-12-2013 / 19:11:07 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
example2
"
XftFontDescription example2
"
|top textView|
top := StandardSystemView new.
top extent:300@200.
textView := EditTextView new.
textView origin:0.0 @ 0.0 corner:1.0 @ 1.0.
textView basicFont: (XftFontDescription family: 'DejaVu Sans' size: 30) asItalic.
top addSubView:textView.
textView contents:('/etc/hosts' asFilename contentsOfEntireFile).
top open.
"Created: / 30-12-2013 / 19:49:05 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
example3
"
XftFontDescription example2
"
|top textView|
top := StandardSystemView new.
top extent:300@200.
textView := EditTextView new.
textView origin:0.0 @ 0.0 corner:1.0 @ 1.0.
textView basicFont: (XftFontDescription family: 'Indie Flower' size: 30).
top addSubView:textView.
textView contents:('/etc/hosts' asFilename contentsOfEntireFile).
top open.
"Created: / 30-12-2013 / 19:49:05 / Jan Vrany <jan.vrany@fit.cvut.cz>"
! !
!XftFontDescription class methodsFor:'queries'!
listOfAvailableFonts
"uses fc-list to get a list of available fontDescriptions"
CachedFontList isNil ifTrue:[
CachedFontList := FCFontListParser new listOfAvailableFonts
].
^ CachedFontList
"
XftFontDescription flushListOfAvailableFonts.
XftFontDescription listOfAvailableFonts
"
! !
!XftFontDescription methodsFor:'accessing'!
encoding
^ encoding ? 'iso10646-1'
!
face
^ face ? ''
!
fullName
^ name ? (self userFriendlyName)
!
graphicsDevice
^ device
"Created: / 02-01-2014 / 23:22:39 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
maxCode
^ maxCode ? 16rFFFF
!
maxCode:something
maxCode := something.
!
minCode
^ minCode ? 0
!
minCode:something
minCode := something.
!
size
^ size ? 0
!
style
^ style ? ''
!
weight:aNumber
"set the weight"
self assert:(self fontId isNil). "/ cannot change an instantiated font
aNumber == FC_WEIGHT_THIN ifTrue:[ face := 'thin'. ^ self].
aNumber == FC_WEIGHT_EXTRALIGHT ifTrue:[ face := 'extralight'. ^ self].
aNumber == FC_WEIGHT_LIGHT ifTrue:[ face := 'light'. ^ self].
aNumber == FC_WEIGHT_BOOK ifTrue:[ face := 'book'. ^ self].
aNumber == FC_WEIGHT_REGULAR ifTrue:[ face := 'regular'. ^ self].
aNumber == FC_WEIGHT_MEDIUM ifTrue:[ face := 'medium'. ^ self].
aNumber == FC_WEIGHT_DEMIBOLD ifTrue:[ face := 'demibold'. ^ self].
aNumber == FC_WEIGHT_BOLD ifTrue:[ face := 'bold'. ^ self].
aNumber == FC_WEIGHT_EXTRABOLD ifTrue:[ face := 'extrabold'. ^ self].
aNumber == FC_WEIGHT_BLACK ifTrue:[ face := 'black'. ^ self].
aNumber == FC_WEIGHT_EXTRABLACK ifTrue:[ face := 'extrablack'. ^ self].
aNumber <= (FC_WEIGHT_EXTRALIGHT + FC_WEIGHT_LIGHT // 2) ifTrue:[
face := 'extralight'.
^ self.
].
aNumber <= (FC_WEIGHT_LIGHT + FC_WEIGHT_BOOK // 2) ifTrue:[
face := 'light'.
^ self.
].
aNumber <= (FC_WEIGHT_MEDIUM + FC_WEIGHT_DEMIBOLD // 2) ifTrue:[
face := 'medium'.
^ self.
].
aNumber <= (FC_WEIGHT_DEMIBOLD + FC_WEIGHT_BOLD // 2) ifTrue:[
face := 'demibold'.
^ self.
].
aNumber <= (FC_WEIGHT_BOLD + FC_WEIGHT_BLACK // 2) ifTrue:[
face := 'bold'.
^ self.
].
face := 'extrabold'.
^ self
"/ FC_WEIGHT_THIN := 0.
"/ FC_WEIGHT_EXTRALIGHT := 40.
"/ FC_WEIGHT_ULTRALIGHT := FC_WEIGHT_EXTRALIGHT.
"/ FC_WEIGHT_LIGHT := 50.
"/ FC_WEIGHT_BOOK := 75.
"/ FC_WEIGHT_REGULAR := 80.
"/ FC_WEIGHT_NORMAL := FC_WEIGHT_REGULAR.
"/ FC_WEIGHT_MEDIUM := 100.
"/ FC_WEIGHT_DEMIBOLD := 180.
"/ FC_WEIGHT_SEMIBOLD := FC_WEIGHT_DEMIBOLD.
"/ FC_WEIGHT_BOLD := 200.
"/ FC_WEIGHT_EXTRABOLD := 205.
"/ FC_WEIGHT_ULTRABOLD := FC_WEIGHT_EXTRABOLD.
"/ FC_WEIGHT_BLACK := 210.
"/ FC_WEIGHT_HEAVY := FC_WEIGHT_BLACK.
"/ FC_WEIGHT_EXTRABLACK := 215.
"/ FC_WEIGHT_ULTRABLACK := FC_WEIGHT_EXTRABLACK.
! !
!XftFontDescription methodsFor:'accessing-private'!
getFontId
^ fontId
"Created: / 02-01-2014 / 23:29:04 / Jan Vrany <jan.vrany@fit.cvut.cz>"
! !
!XftFontDescription methodsFor:'displaying'!
displayString:aString from:index1 to:index2Arg x:xArg y:yArg in:aGC opaque:opaque
"display a partial string at some position in aGC."
|index2 bytesPerCharacter transformation clipR clipX clipY clipW clipH fg fgR fgG fgB fgA fgPixel bg bgR bgG bgB bgA bgPixel drawX drawY displayId screen drawableId error stringLen|
"limit the string len, otherwise bad output is generated"
stringLen := index2Arg - index1.
stringLen > 8000 ifTrue:[
index2 := index2Arg - (stringLen - 8000).
] ifFalse:[
index2 := index2Arg.
].
bytesPerCharacter := aString bitsPerCharacter // 8.
transformation := aGC transformation.
clipR := aGC clippingBoundsOrNil.
clipR notNil ifTrue:[
clipX := clipR left.
clipY := clipR top.
clipW := clipR width.
clipH := clipR height.
].
transformation isNil ifTrue:[
drawX := xArg.
drawY := yArg.
] ifFalse:[
drawX := transformation applyToX:xArg.
drawY := transformation applyToY:yArg.
clipR notNil ifTrue:[
clipX := transformation applyToX:clipX.
clipY := transformation applyToY:clipY.
clipW := transformation applyScaleX:clipW.
clipH := transformation applyScaleY:clipH.
].
].
fg := aGC paint.
fgPixel := fg colorId.
"/ fgPixel notNil ifTrue:[
fgR := fg scaledRed.
fgG := fg scaledGreen.
fgB := fg scaledBlue.
fgA := (fg alpha * 65535) rounded.
"/].
fgR isNil ifTrue:[
"/ when drawing into a pixmap...
fg colorId == 0 ifTrue:[
fgR := fgG := fgB := 0.
] ifFalse:[
fgR := fgG := fgB := 16rFFFF.
]
].
opaque ifTrue:[
bg := aGC backgroundPaint.
bgPixel := bg colorId.
"/bgPixel notNil ifTrue:[
bgR := bg scaledRed.
bgG := bg scaledGreen.
bgB := bg scaledBlue.
bgA := (bg alpha * 65535) rounded.
"/].
bgR isNil ifTrue:[
"/ when drawing into a pixmap...
bg colorId == 0 ifTrue:[
bgR := bgG := bgB := 0.
] ifFalse:[
bgR := bgG := bgB := 16rFFFF.
]
].
].
displayId := device displayIdOrErrorIfBroken.
displayId isNil ifTrue:[
^ self.
].
screen := device screen.
drawableId := aGC drawableId.
%{
#ifdef XFT
XftFont *font;
XftDraw *draw;
XftColor color;
XGlyphInfo extents;
XRectangle clipRX;
char* string;
int len;
int __bytesPerCharacter;
if (!(__bothSmallInteger(drawX, drawY)
&& __bothSmallInteger(index1, index2)
&& __isSmallInteger(bytesPerCharacter)
&& (__isSmallInteger(fgPixel) || (__bothSmallInteger(fgR, fgG) && __bothSmallInteger(fgB, fgA)))
&& (opaque == false || __isSmallInteger(bgPixel) || (__bothSmallInteger(bgR, bgG) && __bothSmallInteger(bgB, bgA)))
&& __isNonNilObject(aString)
)) {
goto err;
}
__bytesPerCharacter = __intVal(bytesPerCharacter);
if ( __INST(sharedDrawId) == nil ) {
__INST(sharedDrawId) = XFT_DRAW_HANDLE_NEW ( XftDrawCreate ( DISPLAY( displayId ) ,
DRAWABLE( drawableId ) ,
DefaultVisual( DISPLAY( displayId), SCREEN (screen) ) ,
DefaultColormap( DISPLAY( displayId), SCREEN (screen) ) ) );
__STORE(self, __INST(sharedDrawId));
}
if ( XftDrawDrawable ( XFT_DRAW ( __INST(sharedDrawId) ) ) != DRAWABLE( drawableId ) ) {
XftDrawChange( XFT_DRAW( __INST(sharedDrawId) ) , DRAWABLE( drawableId ) );
}
string = __stringVal( aString ) + (( __intVal(index1) - 1 ) * __bytesPerCharacter);
len = __intVal(index2) - __intVal(index1) + 1;
if (clipR != nil) {
clipRX.x = __intVal(clipX);
clipRX.y = __intVal(clipY);
clipRX.width = __intVal(clipW);
clipRX.height = __intVal(clipH);
XftDrawSetClipRectangles( XFT_DRAW( __INST( sharedDrawId ) ) , 0, 0, &clipRX, 1);
} else {
XftDrawSetClip( XFT_DRAW( __INST( sharedDrawId ) ) , 0);
}
if (opaque == true) {
if (bgPixel != nil) {
color.pixel = (unsigned long)__intVal(bgPixel);
}
// else {
color.color.red = __intVal(bgR);
color.color.green = __intVal(bgG);
color.color.blue = __intVal(bgB);
color.color.alpha = __intVal(bgA);
// }
switch (__bytesPerCharacter) {
case 1:
XftTextExtents8( DISPLAY( displayId ), XFT_FONT( __INST( fontId ) ), (FcChar8*)string, len, &extents);
break;
case 2:
XftTextExtents16( DISPLAY( displayId ), XFT_FONT( __INST( fontId ) ), (FcChar16*)string, len, &extents);
break;
case 4:
XftTextExtents32( DISPLAY( displayId ), XFT_FONT( __INST( fontId ) ), (FcChar32*)string, len, &extents);
break;
}
XftDrawRect( XFT_DRAW ( __INST( sharedDrawId ) ), &color, __intVal(drawX) - extents.x, __intVal(drawY) - XFT_FONT( __INST( fontId ) )->ascent, extents.width, XFT_FONT(__INST (fontId ) )->height);
}
if (fgPixel != nil) {
color.pixel = (unsigned long)__intVal(fgPixel);
}
// else {
color.color.red = __intVal(fgR);
color.color.green = __intVal(fgG);
color.color.blue = __intVal(fgB);
color.color.alpha = __intVal(fgA);
// }
switch (__bytesPerCharacter) {
case 1:
XftDrawString8( XFT_DRAW ( __INST( sharedDrawId ) ), &color, XFT_FONT( __INST( fontId ) ),
__intVal(drawX),
__intVal(drawY),
(FcChar8*)string,
len);
RETURN ( self );
break;
case 2:
XftDrawString16( XFT_DRAW ( __INST( sharedDrawId ) ), &color, XFT_FONT( __INST( fontId ) ),
__intVal(drawX),
__intVal(drawY),
(FcChar16*)string,
len);
RETURN ( self );
break;
case 4:
XftDrawString32( XFT_DRAW ( __INST( sharedDrawId ) ), &color, XFT_FONT( __INST( fontId ) ),
__intVal(drawX),
__intVal(drawY),
(FcChar32*)string,
len);
RETURN ( self );
break;
}
err:;
#endif
%}.
self primitiveFailed: error.
"Created: / 21-12-2013 / 21:11:07 / Jan Vrany <jan.vrany@fit.cvut.cz>"
"Modified: / 10-01-2014 / 11:13:56 / Jan Vrany <jan.vrany@fit.cvut.cz>"
! !
!XftFontDescription methodsFor:'error reporting'!
primitiveFailed
<resource: #skipInDebuggersWalkBack>
%{
#ifndef XFT
%}.
super primitiveFailed:'Xft support is not configured'.
%{
#endif
%}.
super primitiveFailed
!
primitiveFailed:errorString
<resource: #skipInDebuggersWalkBack>
%{
#ifndef XFT
%}.
super primitiveFailed:'Xft support is not configured'.
%{
#endif
%}.
super primitiveFailed:errorString
! !
!XftFontDescription methodsFor:'getting a device font'!
onDevice:aGraphicsDevice
"Create a new XftFont representing the closes font as
myself on aDevice; if one already exists, return the one."
| myPatternId closestPatternId1 closestPatternId2 newFontId |
"if I am already assigned to that device ..."
(device == aGraphicsDevice) ifTrue:[^ self].
(aGraphicsDevice isNil and:[device notNil]) ifTrue:[
^ self
].
(closestFont notNil and:[closestFont graphicsDevice == aGraphicsDevice]) ifTrue:[
^ closestFont onDevice: aGraphicsDevice.
].
RecentlyUsedFonts isNil ifTrue:[
RecentlyUsedFonts := OrderedCollection new:10.
].
RecentlyUsedFonts keysAndValuesDo:[:index :aFont |
((aFont class == self class) and:[self sameDeviceFontAs:aFont]) ifTrue:[
"/ Transcript showCR:'hit'.
RecentlyUsedFonts removeIndex:index.
RecentlyUsedFonts addFirst:aFont.
^ aFont
]
].
RecentlyUsedFonts size > 20 ifTrue:[
RecentlyUsedFonts removeLast.
].
aGraphicsDevice deviceFonts do:[:aFont |
((aFont class == self class) and:[self sameDeviceFontAs:aFont]) ifTrue:[
RecentlyUsedFonts addFirst:aFont.
^ aFont
].
].
[
myPatternId := self xftPatternCreate.
self xftPatternAdd: myPatternId attribute: FC_FAMILY value: family.
pixelSize notNil ifTrue:[
self xftPatternAdd: myPatternId attribute: FC_PIXEL_SIZE value: pixelSize.
] ifFalse:[
self xftPatternAdd: myPatternId attribute: FC_SIZE value: size.
].
self xftPatternAdd: myPatternId attribute: FC_WEIGHT value: (StXFace2FCWeightMap at: (face ? 'regular')).
self xftPatternAdd: myPatternId attribute: FC_SLANT value: (StXStyle2FCSlantMap at: (style ? 'roman') ifAbsent:[StXStyle2FCSlantMap at: (style ? 'roman') asLowercase]).
newFontId := self xftFontOpenPattern: aGraphicsDevice displayId pattern: myPatternId.
newFontId notNil ifTrue:[
"/ Good, this font exists!!
fontId := newFontId.
device := aGraphicsDevice.
aGraphicsDevice registerFont:self.
RecentlyUsedFonts addFirst:self.
^ self.
] ifFalse:[
closestPatternId1 := self xftFontMatch: aGraphicsDevice displayId screen: aGraphicsDevice screen pattern: myPatternId.
closestPatternId1 isNil ifTrue:[
self error: 'No font matches'.
].
"
self xftPatternGet: closestPatternId attribute: 'family' index: 0.
self xftPatternGet: closestPatternId attribute: 'size' index: 0.
"
closestPatternId2 := self xftPatternDuplicate: closestPatternId1.
newFontId := self xftFontOpenPattern: aGraphicsDevice displayId pattern: closestPatternId1.
"/ !!!!!!!! closestPatternId is no longer valid !!!!!!!!
closestPatternId1 := nil.
newFontId isNil ifTrue:[
self error: 'Pattern matched, but font could not be opened (should not happen)'.
].
"/ Search for existing registered font. Note, that XftFont instances
"/ are shared (and refcounted) so newFontId = aFont getFontId is enough
"/ to check whether some other font instance represents the same font...
aGraphicsDevice deviceFonts do:[:aFont |
((self class == aFont class) and:[newFontId = aFont getFontId]) ifTrue:[
closestFont := aFont.
^ closestFont
].
].
closestFont := self shallowCopy
setDevice: aGraphicsDevice patternId: closestPatternId2 fontId: newFontId;
yourself.
aGraphicsDevice registerFont: closestFont.
RecentlyUsedFonts addFirst:closestFont.
^ closestFont
].
] ensure:[
myPatternId notNil ifTrue:[self xftPatternDestroy: myPatternId].
closestPatternId1 notNil ifTrue:[self xftPatternDestroy: closestPatternId1].
closestPatternId2 notNil ifTrue:[self xftPatternDestroy: closestPatternId2].
].
"
(XftFontDescription family:'monospace' size:16) onDevice:Screen current
"
"Modified: / 14-04-1997 / 18:22:31 / cg"
"Modified: / 02-01-2014 / 23:43:27 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
onDevice:aWorkstation ifAbsent:aBlock
"Create a new XftFont representing the same font as
myself on aWorkstation. This does NOT try to look for existing
or replacement fonts (i.e. can be used to get physical fonts)."
"/ Apparently, this is not needed.
self shouldImplement
"Modified: / 02-01-2014 / 23:15:27 / Jan Vrany <jan.vrany@fit.cvut.cz>"
"Modified (comment): / 04-01-2014 / 02:06:22 / Jan Vrany <jan.vrany@fit.cvut.cz>"
! !
!XftFontDescription methodsFor:'initialization'!
setDevice: deviceArg patternId: patternIdArg fontId: fontIdArg
device := deviceArg.
fontId := fontIdArg.
patternIdArg notNil ifTrue:[
family := self xftPatternGet: patternIdArg attribute: FC_FAMILY index: 0.
size := self xftPatternGet: patternIdArg attribute: FC_SIZE index: 0.
face := self xftPatternGet: patternIdArg attribute: FC_WEIGHT index: 0.
face := StXFace2FCWeightMap keyAtValue: face.
style := self xftPatternGet: patternIdArg attribute: FC_SLANT index: 0.
style := StXStyle2FCSlantMap keyAtValue: style.
name:= self xftPatternGet: patternIdArg attribute: 'fullname' index: 0.
encoding:= self xftPatternGet: patternIdArg attribute: 'encoding' index: 0.
].
"Created: / 21-12-2013 / 00:46:10 / Jan Vrany <jan.vrany@fit.cvut.cz>"
"Modified: / 30-12-2013 / 12:49:58 / Jan Vrany <jan.vrany@fit.cvut.cz>"
! !
!XftFontDescription methodsFor:'primitives'!
xftAvailable
%{
#ifdef XFT
RETURN ( true )
#endif
%}.
^ false
"Created: / 20-12-2013 / 21:10:25 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
xftDrawChange: xftDrawId drawable: drawableId
| error |
%{
#ifdef XFT
if ( ! __isExternalAddressLike(xftDrawId) ) {
error = @symbol(BadArg1);
goto err;
}
if ( ! __isExternalAddressLike(drawableId) ) {
error = @symbol(BadArg2);
goto err;
}
if (XftDrawDrawable( XFT_DRAW(xftDrawId) ) != DRAWABLE( drawableId ) ) {
XftDrawChange( XFT_DRAW(xftDrawId) , DRAWABLE( drawableId ) );
}
RETURN ( self );
err:;
#endif
%}.
self primitiveFailed: error
"Created: / 26-12-2013 / 12:17:36 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
xftDrawCreate: displayId screen: screen drawable: drawableId
| error |
%{
#ifdef XFT
if ( ! __isExternalAddressLike(displayId) ) {
error = @symbol(BadArg1);
goto err;
}
if ( ! __isSmallInteger(screen) ) {
error = @symbol(BadArg2);
goto err;
}
if ( ! __isExternalAddressLike(drawableId) ) {
error = @symbol(BadArg3);
goto err;
}
RETURN ( XFT_DRAW_HANDLE_NEW ( XftDrawCreate ( DISPLAY( displayId ) ,
DRAWABLE( drawableId ) ,
DefaultVisual( DISPLAY( displayId), SCREEN (screen) ) ,
DefaultColormap( DISPLAY( displayId), SCREEN (screen) ) ) ) );
err:;
#endif
%}.
self primitiveFailed: error
"Created: / 21-12-2013 / 21:12:47 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
xftDrawRect: drawIdArg color: aColor x: x y: y width: w height: h
| error r g b a pix |
aColor isColor ifFalse:[^self primitiveFailed: #BadArg2].
r := aColor scaledRed.
g := aColor scaledGreen.
b := aColor scaledBlue.
a := aColor alpha * 65535.
r isNil ifTrue:[
"/ when drawing into a pixmap...
aColor colorId == 0 ifTrue:[
r := g := b := 0.
] ifFalse:[
r := g := b := 16rFFFF.
]
].
pix := aColor colorId.
%{
#ifdef XFT
XftColor clr;
if ( ! __isExternalAddressLike(drawIdArg) ) {
error = @symbol(BadArg1);
goto err;
}
if ( ! __isSmallInteger(pix) ) {
error = @symbol(BadColorId);
goto err;
}
if ( ! __isSmallInteger(x) ) {
error = @symbol(BadArg3);
goto err;
}
if ( ! __isSmallInteger(y) ) {
error = @symbol(BadArg4);
goto err;
}
if ( ! __isSmallInteger(w) ) {
error = @symbol(BadArg5);
goto err;
}
if ( ! __isSmallInteger(h) ) {
error = @symbol(BadArg6);
goto err;
}
clr.pixel = (unsigned long)__intVal(pix);
clr.color.red = __intVal(r);
clr.color.green = __intVal(g);
clr.color.blue = __intVal(b);
clr.color.alpha = __intVal(a);
XftDrawRect(XFT_DRAW(drawIdArg), &clr,
__intVal(x), __intVal(y), __intVal(w) ,__intVal(h));
RETURN ( self );
err:;
#endif
%}.
self primitiveFailed: error.
"Created: / 28-12-2013 / 23:35:42 / Jan Vrany <jan.vrany@fit.cvut.cz>"
"Modified: / 31-12-2013 / 00:37:41 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
xftDrawSetClip: drawIdArg rectangle: rect
| error xObj yObj wObj hObj |
rect notNil ifTrue:[
xObj := rect left.
yObj := rect top.
wObj := rect width.
hObj := rect height.
].
%{
#ifdef XFT
XRectangle r;
if ( ! __isExternalAddressLike(drawIdArg) ) {
error = @symbol(BadArg1);
goto err;
}
if (rect != nil) {
r.x = __intVal(xObj);
r.y = __intVal(yObj);
r.width = __intVal(wObj);
r.height = __intVal(hObj);
XftDrawSetClipRectangles( XFT_DRAW(drawIdArg) , 0, 0, &r, 1);
} else {
XftDrawSetClipRectangles( XFT_DRAW(drawIdArg) , 0, 0, (XRectangle*)NULL, 0);
}
RETURN ( self );
err:;
#endif
%}.
self primitiveFailed: error.
"Created: / 31-12-2013 / 01:24:39 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
xftDrawString: drawIdArg color: aColor font: fontIdArg x: x y: y string: text from: start to: stop
| error r g b a pix |
aColor isColor ifFalse:[^self primitiveFailed: #BadArg2].
r := aColor scaledRed.
g := aColor scaledGreen.
b := aColor scaledBlue.
a := aColor alpha * 65535.
r isNil ifTrue:[
"/ when drawing into a pixmap...
aColor colorId == 0 ifTrue:[
r := g := b := 0.
] ifFalse:[
r := g := b := 16rFFFF.
]
].
pix := aColor colorId.
%{
#ifdef XFT
int _start, _stop;
int _x, _y;
XftColor clr;
if ( ! __isExternalAddressLike(drawIdArg) ) {
error = @symbol(BadArg1);
goto err;
}
if ( ! __isSmallInteger(pix) ) {
error = @symbol(BadColorId);
goto err;
}
if ( ! __isSmallInteger(x) ) {
error = @symbol(BadArg4);
goto err;
}
_x = __intVal(x);
if ( ! __isSmallInteger(y) ) {
error = @symbol(BadArg5);
goto err;
}
_y = __intVal(y);
if ( ! __isSmallInteger(start) ) {
error = @symbol(BadArg6);
goto err;
}
_start = __intVal(start);
if ( ! __isSmallInteger(stop) ) {
error = @symbol(BadArg7);
goto err;
}
_stop = __intVal(stop);
clr.pixel = (unsigned long)__intVal(pix);
clr.color.red = __intVal(r);
clr.color.green = __intVal(g);
clr.color.blue = __intVal(b);
clr.color.alpha = __intVal(a);
if ( __isStringLike(text) ) {
XftDrawString8(XFT_DRAW(drawIdArg), &clr, XFT_FONT(fontIdArg),
_x, _y,
__stringVal(text) + (_start - 1), _stop - _start + 1);
RETURN ( self );
} else {
error = @symbol(BadArg5);
goto err;
}
err:;
#endif
%}.
self primitiveFailed: error.
"Created: / 28-12-2013 / 12:32:18 / Jan Vrany <jan.vrany@fit.cvut.cz>"
"Modified: / 30-12-2013 / 20:00:49 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
xftFontGetAscent: fontIdArg
| error |
%{
#ifdef XFT
int v;
if ( ! __isExternalAddressLike(fontIdArg) ) {
error = @symbol(BadArg1);
goto err;
}
v = XFT_FONT(fontIdArg)->ascent;
RETURN ( __MKINT( v ) );
err:;
#endif
%}.
self primitiveFailed: error
"Created: / 21-12-2013 / 00:56:13 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
xftFontGetDescent:fontIdArg
| error |
%{
#ifdef XFT
int v;
if ( ! __isExternalAddressLike(fontIdArg) ) {
error = @symbol(BadArg1);
goto err;
}
v = XFT_FONT(fontIdArg)->descent;
RETURN ( __MKINT( v ) );
err:;
#endif
%}.
self primitiveFailed: error
"Created: / 21-12-2013 / 00:56:23 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
xftFontGetHeight: fontIdArg
| error |
%{
#ifdef XFT
int v;
if ( ! __isExternalAddressLike(fontIdArg) ) {
error = @symbol(BadArg1);
goto err;
}
v = XFT_FONT(fontIdArg)->height;
RETURN ( __MKINT( v ) );
err:;
#endif
%}.
self primitiveFailed: error
"Created: / 21-12-2013 / 00:56:32 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
xftFontGetMaxAdvanceWidth: fontIdArg
| error |
%{
#ifdef XFT
int v;
if ( ! __isExternalAddressLike(fontIdArg) ) {
error = @symbol(BadArg1);
goto err;
}
v = XFT_FONT(fontIdArg)->max_advance_width;
RETURN ( __MKINT( v ) );
err:;
#endif
%}.
self primitiveFailed: error
"Created: / 30-12-2013 / 20:02:20 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
xftFontGetPattern: fontIdArg
| error |
%{
#ifdef XFT
XftPattern* p;
if ( ! __isExternalAddressLike(fontIdArg) ) {
error = @symbol(BadArg1);
goto err;
}
p = XFT_FONT(fontIdArg)->pattern;
if (p == NULL) {
RETURN ( nil );
} else {
RETURN ( FC_PATTERN_HANDLE_NEW ( p ) );
}
err:;
#endif
%}.
self primitiveFailed: error
"Created: / 21-12-2013 / 00:55:11 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
xftFontMatch: displayId screen: screen pattern: patternId
| error |
%{
#ifdef XFT
XftPattern* p;
XftResult r;
if ( ! __isExternalAddressLike(displayId) ) {
error = @symbol(BadArg1);
goto err;
}
if ( ! __isSmallInteger( screen ) ) {
error = @symbol(BadArg2);
goto err;
}
if ( ! __isExternalAddressLike(patternId) ) {
error = @symbol(BadArg3);
goto err;
}
XftConfigSubstitute(FC_PATTERN( patternId ));
XftDefaultSubstitute(DISPLAY(displayId) , SCREEN( screen ), FC_PATTERN( patternId ));
p = XftFontMatch( DISPLAY(displayId) , SCREEN( screen ), FC_PATTERN( patternId ), &r );
if (p) {
RETURN ( FC_PATTERN_HANDLE_NEW ( p ) );
} else {
error = @symbol(XftFontMatchReturnedNull);
}
err:;
#endif
%}.
self primitiveFailed: error
"Created: / 21-12-2013 / 00:08:48 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
xftFontOpenPattern: displayId pattern: patternId
| error |
%{
#ifdef XFT
XftFont* f;
if ( ! __isExternalAddressLike(displayId) ) {
error = @symbol(BadArg1);
goto err;
}
if ( ! __isExternalAddressLike(patternId) ) {
error = @symbol(BadArg2);
goto err;
}
f = XftFontOpenPattern( DISPLAY(displayId) , FC_PATTERN( patternId ) );
if (f == NULL) {
RETURN ( nil );
} else {
RETURN ( XFT_FONT_HANDLE_NEW ( f ) );
}
err:;
#endif
%}.
self primitiveFailed: error
"Created: / 20-12-2013 / 23:53:59 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
xftPatternAdd: pattern attribute: attribute value: value
"Add a value to the specified pattern element after existing values"
^ self xftPatternAdd: pattern attribute: attribute value: value append: true.
"Created: / 20-12-2013 / 23:43:31 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
xftPatternAdd: pattern attribute: attribute value: value append: append
"Add a value to the specified pattern element. If 'append' is true, the value
is added after existing values, otherwise it is added before them."
| error |
%{
#ifdef XFT
XftValue v;
Bool b;
if ( ! __isExternalAddressLike ( pattern ) ) {
error = @symbol(BadArg1);
goto err;
}
if ( ! __isStringLike ( attribute ) ) {
error = @symbol(BadArg2);
goto err;
}
if ( append != true && append != false ) {
error = @symbol(BadArg4);
goto err;
}
if ( __isStringLike ( value ) ) {
v.type = FcTypeString;
/* Passing pointer inside Smalltalk should be safe,
* Xft/FontConfig libraries seem to allocate and store
* a __copy__ of the string (if I understood the code correctly)
*/
v.u.s = __stringVal( value);
} else if ( __isSmallInteger( value ) ) {
v.type = XftTypeInteger;
v.u.i = (int)__intVal( value );
} else if ( value == true || value == false ) {
v.type = XftTypeBool;
v.u.b = value == true ? True : False;
} else if ( __isFloat ( value ) ) {
v.type = XftTypeDouble;
v.u.d = __floatVal( value );
} else if ( value == nil ) {
v.type = XftTypeVoid;
v.u.f = NULL;
} else {
error = @symbol(BadArg3);
goto err;
}
b = XftPatternAdd( FC_PATTERN(pattern), __stringVal(attribute), v, append == true ? True : False );
RETURN ( b == True ? true : false );
err:;
#endif
%}.
self primitiveFailed: error
"Created: / 20-12-2013 / 21:50:00 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
xftPatternCreate
%{
#ifdef XFT
RETURN ( FC_PATTERN_HANDLE_NEW ( XftPatternCreate() ) );
#endif
%}.
self primitiveFailed.
"Created: / 20-12-2013 / 21:19:00 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
xftPatternDel: pattern attribute: attribute
| error |
%{
#ifdef XFT
if ( ! __isExternalAddressLike ( pattern ) ) {
error = @symbol(BadArg1);
goto err;
}
if ( ! __isStringLike ( attribute ) ) {
error = @symbol(BadArg2);
goto err;
}
XftPatternDel( FC_PATTERN(pattern), __stringVal ( attribute ) );
RETURN ( self );
err:;
#endif
%}.
self primitiveFailed: error
"Created: / 20-12-2013 / 21:33:47 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
xftPatternDestroy: addr
| error |
addr isNil ifTrue:[ ^ self ].
%{
#ifdef XFT
if ( ! __isExternalAddressLike(addr) ) {
error = @symbol(BadArg1);
goto err;
}
XftPatternDestroy( FC_PATTERN(addr) );
RETURN ( self );
err:;
#endif
%}.
self primitiveFailed: error
"Created: / 20-12-2013 / 21:33:47 / Jan Vrany <jan.vrany@fit.cvut.cz>"
"Modified: / 20-12-2013 / 23:48:45 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
xftPatternDuplicate: addr
| error |
addr isNil ifTrue:[ ^ self ].
%{
#ifdef XFT
if ( ! __isExternalAddressLike(addr) ) {
error = @symbol(BadArg1);
goto err;
}
RETURN ( FC_PATTERN_HANDLE_NEW ( XftPatternDuplicate( FC_PATTERN(addr) ) ) );
err:;
#endif
%}.
self primitiveFailed: error
"Created: / 21-12-2013 / 01:14:03 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
xftPatternGet: pattern attribute: attribute index: index
"Return a value from the specified element -- multiple values can be indexed
with 'index' starting at zero."
| error |
%{
#ifdef XFT
XftValue v;
XftResult r;
if ( ! __isExternalAddressLike ( pattern ) ) {
error = @symbol(BadArg1);
goto err;
}
if ( ! __isStringLike ( attribute ) ) {
error = @symbol(BadArg2);
goto err;
}
if ( ! __isSmallInteger( index ) ) {
error = @symbol(BadArg3);
goto err;
}
r = XftPatternGet(FC_PATTERN(pattern), __stringVal( attribute ), __intVal( index ), &v);
if ( r != XftResultMatch) {
RETURN ( nil );
}
if ( v.type == XftTypeString) {
RETURN ( __MKSTRING(v.u.s) );
} else if ( v.type == XftTypeInteger ) {
RETURN ( __MKINT (v.u.i) );
} else if ( v.type == XftTypeBool ) {
RETURN ( v.u.b == True ? true : false );
} else if ( v.type == XftTypeDouble ) {
RETURN ( __MKFLOAT (v.u.d) );
} else if ( v.type == XftTypeVoid ) {
RETURN ( nil );
} else {
error = @symbol(UnssuportedTypeValue);
goto err;
}
err:;
#endif
%}.
self primitiveFailed: error
"Created: / 20-12-2013 / 21:50:44 / Jan Vrany <jan.vrany@fit.cvut.cz>"
"Modified: / 21-12-2013 / 01:06:25 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
xftTextExtents: displayIdArg font: fontIdArg string: text from: start to: stop
| error extents bitsPerCharacter |
extents := Array new: 6.
bitsPerCharacter := text bitsPerCharacter.
%{
#ifdef XFT
XGlyphInfo info;
int bytesPerCharacter;
char *string;
int len;
bytesPerCharacter = __intVal(bitsPerCharacter) / 8;
if ( ! __isExternalAddressLike(displayIdArg) ) {
error = @symbol(BadArg1);
goto err;
}
if ( ! __isExternalAddressLike(fontIdArg) ) {
error = @symbol(BadArg2);
goto err;
}
if ( ! __isSmallInteger(start) ) {
error = @symbol(BadArg4);
goto err;
}
if ( ! __isSmallInteger(stop) ) {
error = @symbol(BadArg5);
goto err;
}
string = __stringVal( text ) + (( __intVal(start) - 1 ) * bytesPerCharacter);
len = __intVal(stop) - __intVal(start) + 1;
switch (bytesPerCharacter) {
case 1:
XftTextExtents8(DISPLAY(displayIdArg), XFT_FONT(fontIdArg), (FcChar8*)string, len, &info);
break;
case 2:
XftTextExtents16(DISPLAY(displayIdArg), XFT_FONT(fontIdArg), (FcChar16*)string, len, &info);
break;
case 4:
XftTextExtents32(DISPLAY(displayIdArg), XFT_FONT(fontIdArg), (FcChar32*)string, len, &info);
break;
}
__ArrayInstPtr(extents)->a_element[0] = __MKSMALLINT(info.width);
__ArrayInstPtr(extents)->a_element[1] = __MKSMALLINT(info.height);
__ArrayInstPtr(extents)->a_element[2] = __MKSMALLINT(info.x);
__ArrayInstPtr(extents)->a_element[3] = __MKSMALLINT(info.y);
__ArrayInstPtr(extents)->a_element[4] = __MKSMALLINT(info.xOff);
__ArrayInstPtr(extents)->a_element[5] = __MKSMALLINT(info.yOff);
error = nil;
err:;
#endif
%}.
error notNil ifTrue:[
self primitiveFailed: error.
^ nil.
].
^ extents
"Created: / 21-12-2013 / 10:42:15 / Jan Vrany <jan.vrany@fit.cvut.cz>"
"Modified: / 30-12-2013 / 20:00:30 / Jan Vrany <jan.vrany@fit.cvut.cz>"
! !
!XftFontDescription methodsFor:'printing & storing'!
storeOn:aStream
"append a character sequence to the argument, aStream from which the
receiver can be reconstructed using readFrom:."
aStream nextPutAll:'(XftFontDescription family:'. family storeOn:aStream.
aStream nextPutAll:' face:'. face storeOn:aStream.
aStream nextPutAll:' style:'. style storeOn:aStream.
aStream nextPutAll:' size:'. size storeOn:aStream.
aStream nextPutAll:' encoding:'. encoding storeOn:aStream.
aStream nextPut:$)
"
(XftFontDescription family: 'DejaVu Sans' size: 8) storeString
"
! !
!XftFontDescription methodsFor:'queries-dimensions'!
ascent
"return the ascent - the number of pixels above the baseLine."
^ self xftFontGetAscent: fontId
"Created: / 21-12-2013 / 01:19:46 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
descent
"return the descent - the number of pixels below the baseLine."
^ self xftFontGetDescent: fontId
"Created: / 21-12-2013 / 01:20:09 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
getFontMetrics
|info|
info := DeviceWorkstation::DeviceFontMetrics new.
info
ascent:self ascent
descent:self descent
maxAscent:self maxAscent
maxDescent:self maxDescent
minWidth:self maxWidth
maxWidth:self maxWidth
avgWidth:self maxWidth
minCode:self minCode
maxCode:self maxCode
direction:#LeftToRight.
^ info
!
height
"return the height - the number of pixels above plus below the baseLine."
^ self xftFontGetHeight: fontId
"Created: / 21-12-2013 / 01:20:21 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
isFixedWidth
"return true, if this is a fixed pitch font (i.e. all characters
are of the same width)"
^ false "/ How to check?
"Created: / 21-12-2013 / 10:38:47 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
maxAscent
"return the fonts maximum-ascent (i.e. the maximum of all characters);
That is the number of units (usually pixels) above the baseline."
^ self ascent
"Created: / 30-12-2013 / 20:01:01 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
maxDescent
"return the fonts maximum-descent (i.e. the maximum of all characters);
That is the number of units (usually pixels) below the baseline."
^ self descent
"Created: / 30-12-2013 / 20:01:08 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
maxWidth
"return the fonts maximum-width character (i.e. the maximum of all characters);
That is a number of units (usually pixels)."
^ self xftFontGetMaxAdvanceWidth: fontId
"Created: / 30-12-2013 / 20:02:48 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
widthOf:aString from:start to:stop
"return the width of a sub string"
| extents |
(stop < start) ifTrue:[^ 0].
extents := self xftTextExtents: device displayId font: fontId string: aString from: start to: stop.
"/ extents --> #(width height x y xOff yOff)
^ extents fifth.
"Created: / 21-12-2013 / 10:42:15 / Jan Vrany <jan.vrany@fit.cvut.cz>"
"Modified: / 29-12-2013 / 21:16:50 / Jan Vrany <jan.vrany@fit.cvut.cz>"
! !
!XftFontDescription methodsFor:'release'!
releaseDrawIfAssociatedWith: view
| drawableId |
view isNil ifTrue:[ ^ self ].
drawableId := view id.
drawableId isNil ifTrue: [ ^ self ].
%{
#ifdef XFT
if ( __INST(sharedDrawId) != nil ) {
if (XftDrawDrawable(XFT_DRAW(__INST(sharedDrawId))) == DRAWABLE(drawableId)) {
__INST(sharedDrawId) = nil;
XftDrawDestroy(DRAWABLE(drawableId));
}
}
RETURN (self);
#endif
%}.
self primitiveFailed
"Created: / 12-01-2014 / 19:48:51 / Jan Vrany <jan.vrany@fit.cvut.cz>"
"Modified: / 12-01-2014 / 22:09:27 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
releaseFromDevice
"I am no longer available on the device"
device := nil.
fontId := nil.
sharedDrawId := nil.
closestFont := nil
! !
!XftFontDescription methodsFor:'testing'!
isUsed
^ sharedDrawId notNil
!
isXftFont
^ true
! !
!XftFontDescription::FCFontListParser class methodsFor:'documentation'!
documentation
"
parses fc-list output to get a list of XftFontDescriptions
[author:]
cg
[instance variables:]
[class variables:]
[see also:]
"
! !
!XftFontDescription::FCFontListParser methodsFor:'api'!
listOfAvailableFonts
|readEntry list l fcListProg|
list := OrderedCollection new.
readEntry :=
[
|key|
[l startsWith:'Pattern has'] whileFalse:[
l := pipeStream nextLine. Transcript showCR:l.
].
currentDescription := XftFontDescription new.
[ l := pipeStream nextLine. l notEmptyOrNil ] whileTrue:[
"/ Transcript showCR:l.
lineStream := l readStream. lineStream skipSeparators.
key := lineStream upToSeparator.
(
#('family:' 'style:' 'slant:' 'weight:' 'width:'
'pixelsize:' 'spacing:' 'foundry:' 'antialias:'
'file:' 'outline' 'scalable:' 'charset:' 'lang:'
'fontversion:' 'fontformat:' 'decorative:' 'index:'
'outline:' 'familylang:' 'stylelang:' 'fullname:'
'fullnamelang:' 'capability:' 'hash:' 'postscriptname:'
) includes:key
) ifTrue:[
self perform:('fc_',(key allButLast)) asSymbol
] ifFalse:[
Transcript show:'Xft ignored line: '; showCR:l.
self breakPoint:#cg.
].
].
list add:currentDescription
].
fcListProg := #('/usr/bin/fc-list' '/usr/X11/bin/fc-list') detect:[:eachProg|
eachProg asFilename isExecutableProgram
] ifNone:[
'fc-list program not found - no XFT fonts' infoPrintCR.
^ list.
].
pipeStream := PipeStream readingFrom:fcListProg, ' -v'.
[
[pipeStream atEnd] whileFalse:[
l := pipeStream nextLine.
readEntry value.
]
] ensure:[
pipeStream close
].
^ list
"
FCFontListParser new listOfAvailableFonts
"
! !
!XftFontDescription::FCFontListParser methodsFor:'font list keywords'!
fc_antialias
"helper for font listing"
currentDescription isAntialiasedFont:(self getBoolean).
!
fc_capability
"helper for font listing"
"currentDescription capability:" (self getString).
!
fc_charset
"helper for font listing"
|page bits l min max minCode maxCode|
[ l := pipeStream nextLine. l notEmpty ] whileTrue:[
"/ Transcript show:'->'; showCR:l.
(l startsWith:Character tab) ifFalse:[
(l startsWith:'(') ifFalse:[self halt].
currentDescription minCode:minCode.
currentDescription maxCode:maxCode.
^ self.
].
lineStream := l readStream.
lineStream skipSeparators.
page := Integer readFrom:(lineStream upTo:$:) radix:16.
lineStream next.
bits := 0 to:7 collect:[:i|
lineStream skipSeparators.
Integer readFrom:(lineStream upToSeparator) radix:16.
].
min := (page * 256 + 0).
max := (page * 256 + 255).
minCode isNil ifTrue:[
minCode := min.
maxCode := max.
] ifFalse:[
minCode := minCode min:min.
maxCode := maxCode max:max.
].
].
"/ currentDescription characterSet:(self getString).
currentDescription minCode:minCode.
currentDescription maxCode:maxCode.
!
fc_decorative
"helper for font listing"
currentDescription isDecorativeFont:(self getBoolean).
!
fc_family
"helper for font listing"
currentDescription family:(self getString).
!
fc_familylang
"helper for font listing"
"currentDescription familylang:" (self getString).
!
fc_file
"helper for font listing"
currentDescription file:(self getString).
!
fc_fontformat
"helper for font listing"
currentDescription fontFormat:(self getString).
!
fc_fontversion
"helper for font listing"
currentDescription fontVersion:(self getInteger).
!
fc_foundry
"helper for font listing"
currentDescription foundry:(self getString).
!
fc_fullname
"helper for font listing"
"currentDescription fullname:" (self getString).
!
fc_fullnamelang
"helper for font listing"
"currentDescription fullnamelang:" (self getString).
!
fc_hash
"helper for font listing"
"currentDescription hash:" self getString.
!
fc_index
"helper for font listing"
"currentDescription index:" (self getInteger).
!
fc_lang
"helper for font listing"
"/ currentDescription characterSet:(self getString).
!
fc_outline
"helper for font listing"
currentDescription isOutlineFont:(self getBoolean).
!
fc_pixelsize
"helper for font listing"
currentDescription setPixelSize:(self getInteger).
currentDescription setSizeUnit:#px.
"/ currentDescription setSize:(self getInteger).
"/ currentDescription setSizeUnit:#pt.
!
fc_postscriptname
"helper for font listing"
"currentDescription postscriptname:" self getString.
!
fc_scalable
"helper for font listing"
currentDescription isScalableFont:(self getBoolean).
!
fc_slant
"helper for font listing"
currentDescription slant:(self getInteger).
!
fc_spacing
"helper for font listing"
currentDescription spacing:(self getInteger).
!
fc_style
"helper for font listing"
|xftStyle|
xftStyle := self getString.
"/ ((xftStyle includesString:'Bold') or:[xftStyle includesString:'Fett']) ifTrue:[
"/ currentDescription face:'bold'.
"/ currentDescription style:'roman'.
"/ ^ self.
"/ ].
((xftStyle includesString:'Italic') or:[xftStyle includesString:'Oblique']) ifTrue:[
"/ currentDescription face:'medium'.
currentDescription style:'italic'.
^ self.
].
"/ (xftStyle includesString:'Regular') ifTrue:[
"/ currentDescription face:'regular'.
"/ currentDescription style:'roman'.
"/ ^ self.
"/ ].
"/ self halt.
"/ currentDescription face:'medium'.
currentDescription style:'roman'.
!
fc_stylelang
"helper for font listing"
"currentDescription stylelang:" (self getString).
!
fc_weight
"helper for font listing"
currentDescription weight:(self getInteger).
!
fc_width
"helper for font listing"
currentDescription width:(self getInteger).
! !
!XftFontDescription::FCFontListParser methodsFor:'helpers'!
getBoolean
"helper for font listing"
|s|
lineStream skipSeparators.
s := lineStream nextAlphaNumericWord.
^ s = 'FcTrue'.
!
getInteger
"helper for font listing"
lineStream skipSeparators.
^ Integer readFrom:lineStream.
!
getString
"helper for font listing"
lineStream skipSeparators.
lineStream peekFor:$".
^ (lineStream upTo:$").
! !
!XftFontDescription class methodsFor:'documentation'!
version
^ '$Header: /cvs/stx/stx/libview/XftFontDescription.st,v 1.48 2014-04-27 21:31:11 cg Exp $'
!
version_CVS
^ '$Header: /cvs/stx/stx/libview/XftFontDescription.st,v 1.48 2014-04-27 21:31:11 cg Exp $'
! !
XftFontDescription initialize!