[Bf-blender-cvs] SVN commit: /data/svn/bf-blender [20820] branches/blender2.5/blender/source /blender: Smal tweak to allow the user set a kerning value.

Diego Borghetti bdiego at gmail.com
Thu Jun 11 23:43:59 CEST 2009


Revision: 20820
          http://projects.blender.org/plugins/scmsvn/viewcvs.php?view=rev&root=bf-blender&revision=20820
Author:   bdiego
Date:     2009-06-11 23:43:59 +0200 (Thu, 11 Jun 2009)

Log Message:
-----------
Smal tweak to allow the user set a kerning value.

This commit add two option to the blenfont library:

1) BLF_FONT_KERNING

 This enable the kerning information that come with the
font, by default this option is disable and still don't
have a UI for change.

2) BLF USER_KERNING
 This allow the user set a kerning value to by apply for
every character, by default this option is enable but all
the font have a kerning value of zero.

Ton I add this option to the style with a default value of 1.

Access from:
 Outliner -> User Preferences -> Style -> FontStyle -> Kerning

Modified Paths:
--------------
    branches/blender2.5/blender/source/blender/blenfont/BLF_api.h
    branches/blender2.5/blender/source/blender/blenfont/intern/blf.c
    branches/blender2.5/blender/source/blender/blenfont/intern/blf_font.c
    branches/blender2.5/blender/source/blender/blenfont/intern/blf_glyph.c
    branches/blender2.5/blender/source/blender/blenfont/intern/blf_internal_types.h
    branches/blender2.5/blender/source/blender/editors/interface/interface_style.c
    branches/blender2.5/blender/source/blender/makesdna/DNA_userdef_types.h
    branches/blender2.5/blender/source/blender/makesrna/intern/rna_userdef.c

Modified: branches/blender2.5/blender/source/blender/blenfont/BLF_api.h
===================================================================
--- branches/blender2.5/blender/source/blender/blenfont/BLF_api.h	2009-06-11 21:11:33 UTC (rev 20819)
+++ branches/blender2.5/blender/source/blender/blenfont/BLF_api.h	2009-06-11 21:43:59 UTC (rev 20820)
@@ -85,8 +85,8 @@
 void BLF_rotation(float angle);
 void BLF_clipping(float xmin, float ymin, float xmax, float ymax);
 void BLF_blur(int size);
+void BLF_kerning(int space);
 
-
 void BLF_enable(int option);
 void BLF_disable(int option);
 
@@ -117,6 +117,8 @@
 /* font->flags. */
 #define BLF_ROTATION (1<<0)
 #define BLF_CLIPPING (1<<1)
+#define BLF_FONT_KERNING (1<<2)
+#define BLF_USER_KERNING (1<<3)
 
 /* font->mode. */
 #define BLF_MODE_TEXTURE 0

Modified: branches/blender2.5/blender/source/blender/blenfont/intern/blf.c
===================================================================
--- branches/blender2.5/blender/source/blender/blenfont/intern/blf.c	2009-06-11 21:11:33 UTC (rev 20819)
+++ branches/blender2.5/blender/source/blender/blenfont/intern/blf.c	2009-06-11 21:43:59 UTC (rev 20820)
@@ -491,3 +491,12 @@
 	if (font)
 		font->mode= mode;
 }
+
+void BLF_kerning(int space)
+{
+	FontBLF *font;
+
+	font= global_font[global_font_cur];
+	if (font)
+		font->kerning= space;
+}

Modified: branches/blender2.5/blender/source/blender/blenfont/intern/blf_font.c
===================================================================
--- branches/blender2.5/blender/source/blender/blenfont/intern/blf_font.c	2009-06-11 21:11:33 UTC (rev 20819)
+++ branches/blender2.5/blender/source/blender/blenfont/intern/blf_font.c	2009-06-11 21:43:59 UTC (rev 20820)
@@ -100,7 +100,7 @@
 	GlyphBLF *g, *g_prev;
 	FT_Vector delta;
 	FT_UInt glyph_index, g_prev_index;
-	int pen_x, pen_y;
+	int pen_x, pen_y, old_pen_x;
 	int i, has_kerning;
 
 	if (!font->glyph_cache)
@@ -138,14 +138,26 @@
 		else if (font->mode == BLF_MODE_TEXTURE && (!g->tex_data))
 			g= blf_glyph_add(font, glyph_index, c);
 
-		if (has_kerning && g_prev) {
+		if ((font->flags & BLF_FONT_KERNING) && has_kerning && g_prev) {
+			old_pen_x= pen_x;
 			delta.x= 0;
 			delta.y= 0;
 
 			FT_Get_Kerning(font->face, g_prev_index, glyph_index, FT_KERNING_UNFITTED, &delta);
 			pen_x += delta.x >> 6;
+
+			if (pen_x < old_pen_x)
+				pen_x= old_pen_x;
 		}
 
+		if (font->flags & BLF_USER_KERNING) {
+			old_pen_x= pen_x;
+			pen_x += font->kerning;
+
+			if (pen_x < old_pen_x)
+				pen_x= old_pen_x;
+		}
+
 		/* do not return this loop if clipped, we want every character tested */
 		blf_glyph_render(font, g, (float)pen_x, (float)pen_y);
 
@@ -162,7 +174,7 @@
 	FT_Vector delta;
 	FT_UInt glyph_index, g_prev_index;
 	rctf gbox;
-	int pen_x, pen_y;
+	int pen_x, pen_y, old_pen_x;
 	int i, has_kerning;
 
 	if (!font->glyph_cache)
@@ -205,14 +217,26 @@
 		else if (font->mode == BLF_MODE_TEXTURE && (!g->tex_data))
 			g= blf_glyph_add(font, glyph_index, c);
 
-		if (has_kerning && g_prev) {
+		if ((font->flags & BLF_FONT_KERNING) && has_kerning && g_prev) {
+			old_pen_x= pen_x;
 			delta.x= 0;
 			delta.y= 0;
 
 			FT_Get_Kerning(font->face, g_prev_index, glyph_index, FT_KERNING_UNFITTED, &delta);
 			pen_x += delta.x >> 6;
+
+			if (pen_x < old_pen_x)
+				old_pen_x= pen_x;
 		}
 
+		if (font->flags & BLF_USER_KERNING) {
+			old_pen_x= pen_x;
+			pen_x += font->kerning;
+
+			if (pen_x < old_pen_x)
+				old_pen_x= pen_x;
+		}
+
 		gbox.xmin= g->box.xmin + pen_x;
 		gbox.xmax= g->box.xmax + pen_x;
 		gbox.ymin= g->box.ymin + pen_y;
@@ -294,9 +318,10 @@
 	font->clip_rec.xmax= 0.0f;
 	font->clip_rec.ymin= 0.0f;
 	font->clip_rec.ymax= 0.0f;
-	font->flags= 0;
+	font->flags= BLF_USER_KERNING;
 	font->dpi= 0;
 	font->size= 0;
+	font->kerning= 0;
 	font->cache.first= NULL;
 	font->cache.last= NULL;
 	font->glyph_cache= NULL;

Modified: branches/blender2.5/blender/source/blender/blenfont/intern/blf_glyph.c
===================================================================
--- branches/blender2.5/blender/source/blender/blenfont/intern/blf_glyph.c	2009-06-11 21:11:33 UTC (rev 20819)
+++ branches/blender2.5/blender/source/blender/blenfont/intern/blf_glyph.c	2009-06-11 21:43:59 UTC (rev 20820)
@@ -213,7 +213,11 @@
 	else
 		do_new= 1;
 
-	err= FT_Load_Glyph(font->face, index, FT_LOAD_NO_HINTING | FT_LOAD_NO_BITMAP);
+	if (font->flags & BLF_FONT_KERNING)
+		err= FT_Load_Glyph(font->face, index, FT_LOAD_NO_BITMAP);
+	else
+		err= FT_Load_Glyph(font->face, index, FT_LOAD_NO_HINTING | FT_LOAD_NO_BITMAP);
+
 	if (err)
 		return(NULL);
 
@@ -328,7 +332,11 @@
 	else
 		do_new= 1;
 
-	err= FT_Load_Glyph(font->face, index, FT_LOAD_NO_HINTING | FT_LOAD_NO_BITMAP);
+	if (font->flags & BLF_FONT_KERNING)
+		err= FT_Load_Glyph(font->face, index, FT_LOAD_NO_BITMAP);
+	else
+		err= FT_Load_Glyph(font->face, index, FT_LOAD_NO_HINTING | FT_LOAD_NO_BITMAP);
+
 	if (err)
 		return(NULL);
 

Modified: branches/blender2.5/blender/source/blender/blenfont/intern/blf_internal_types.h
===================================================================
--- branches/blender2.5/blender/source/blender/blenfont/intern/blf_internal_types.h	2009-06-11 21:11:33 UTC (rev 20819)
+++ branches/blender2.5/blender/source/blender/blenfont/intern/blf_internal_types.h	2009-06-11 21:43:59 UTC (rev 20820)
@@ -167,6 +167,9 @@
 	/* font size. */
 	int size;
 
+	/* kerning space, user setting. */
+	int kerning;
+
 	/* max texture size. */
 	int max_tex_size;
 

Modified: branches/blender2.5/blender/source/blender/editors/interface/interface_style.c
===================================================================
--- branches/blender2.5/blender/source/blender/editors/interface/interface_style.c	2009-06-11 21:11:33 UTC (rev 20819)
+++ branches/blender2.5/blender/source/blender/editors/interface/interface_style.c	2009-06-11 21:43:59 UTC (rev 20820)
@@ -91,6 +91,7 @@
 	
 	style->paneltitle.uifont_id= UIFONT_DEFAULT;
 	style->paneltitle.points= 13;
+	style->paneltitle.kerning= 1;
 	style->paneltitle.shadow= 5;
 	style->paneltitle.shadx= 2;
 	style->paneltitle.shady= -2;
@@ -99,6 +100,7 @@
 	
 	style->grouplabel.uifont_id= UIFONT_DEFAULT;
 	style->grouplabel.points= 12;
+	style->grouplabel.kerning= 1;
 	style->grouplabel.shadow= 3;
 	style->grouplabel.shadx= 1;
 	style->grouplabel.shady= -1;
@@ -106,6 +108,7 @@
 	
 	style->widgetlabel.uifont_id= UIFONT_DEFAULT;
 	style->widgetlabel.points= 11;
+	style->widgetlabel.kerning= 1;
 	style->widgetlabel.shadow= 3;
 	style->widgetlabel.shadx= 1;
 	style->widgetlabel.shady= -1;
@@ -114,6 +117,7 @@
 	
 	style->widget.uifont_id= UIFONT_DEFAULT;
 	style->widget.points= 11;
+	style->widget.kerning= 1;
 	style->widget.shadowalpha= 0.25f;
 
 	style->columnspace= 5;
@@ -263,5 +267,6 @@
 	
 	BLF_set(font->blf_id);
 	BLF_size(fs->points, U.dpi);
+	BLF_kerning(fs->kerning);
 }
 

Modified: branches/blender2.5/blender/source/blender/makesdna/DNA_userdef_types.h
===================================================================
--- branches/blender2.5/blender/source/blender/makesdna/DNA_userdef_types.h	2009-06-11 21:11:33 UTC (rev 20819)
+++ branches/blender2.5/blender/source/blender/makesdna/DNA_userdef_types.h	2009-06-11 21:43:59 UTC (rev 20820)
@@ -66,6 +66,8 @@
 typedef struct uiFontStyle {
 	short uifont_id;		/* saved in file, 0 is default */
 	short points;			/* actual size depends on 'global' dpi */
+	short kerning;			/* kerning space between characters. */
+	char pad[6];
 	short italic, bold;		/* style hint */
 	short shadow;			/* value is amount of pixels blur */
 	short shadx, shady;		/* shadow offset in pixels */

Modified: branches/blender2.5/blender/source/blender/makesrna/intern/rna_userdef.c
===================================================================
--- branches/blender2.5/blender/source/blender/makesrna/intern/rna_userdef.c	2009-06-11 21:11:33 UTC (rev 20819)
+++ branches/blender2.5/blender/source/blender/makesrna/intern/rna_userdef.c	2009-06-11 21:43:59 UTC (rev 20820)
@@ -135,7 +135,11 @@
 	prop= RNA_def_property(srna, "points", PROP_INT, PROP_NONE);
 	RNA_def_property_range(prop, 6, 48);
 	RNA_def_property_ui_text(prop, "Points", "");
-	
+
+	prop= RNA_def_property(srna, "kerning", PROP_INT, PROP_NONE);
+	RNA_def_property_range(prop, -5, 5);
+	RNA_def_property_ui_text(prop, "Kerning", "");
+
 	prop= RNA_def_property(srna, "shadow", PROP_INT, PROP_NONE);
 	RNA_def_property_range(prop, 0, 5);
 	RNA_def_property_ui_text(prop, "Shadow Size", "Shadow size in pixels (0, 3 and 5 supported)");





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