[repo.or.cz] gfxprim.git branch master updated: 11237152b73f0794cd98e0de4c20ce180ac19535 - Gfxprim

6 Apr 2013

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http://repo.or.cz/w/gfxprim.git/commit/11237152b73f0794cd98e0de4c20ce180ac19...
commit 11237152b73f0794cd98e0de4c20ce180ac19535
Author: Cyril Hrubis metan@ucw.cz
Date:   Sat Apr 6 21:54:07 2013 +0200
demos: py_simple: Add font style example.
Signed-off-by: Cyril Hrubis metan@ucw.cz

diff --git a/demos/py_simple/font_style.py b/demos/py_simple/font_style.py
new file mode 100755
index 0000000..47d8e2c
--- /dev/null
+++ b/demos/py_simple/font_style.py
@@ -0,0 +1,58 @@
+#!/usr/bin/env python
+
+import sys
+
+import gfxprim.core as core
+import gfxprim.gfx as gfx
+import gfxprim.backends as backends
+import gfxprim.input as input
+import gfxprim.text as text
+
+def redraw(win):
+    c = win.context
+
+    black = c.RGBToPixel(0, 0, 0)
+    white = c.RGBToPixel(0xff, 0xff, 0xff)
+
+    c.gfx.Fill(black)
+
+    align = text.C.ALIGN_CENTER | text.C.VALIGN_CENTER
+    style = text.TextStyle(text.DefaultProportionalFont, 0, 0, 1, 1, 1)
+
+    spacing = 20
+    y = 20
+
+    while y < c.h:
+        y += text.TextHeight(style) + spacing
+        c.text.Text(style, c.w//2, y, align, white, black, "Lorem Ipsum Dolor Sit Amet.")
+
+        style.pixel_xspace += 1
+        style.pixel_yspace += 1
+        style.pixel_xmul += 1
+        style.pixel_ymul += 1
+
+    win.Flip()
+
+
+def main():
+    # Create X11 window
+    win = backends.BackendX11Init(None, 0, 0, 800, 600, "Fonts", 0)
+    assert(win)
+
+    redraw(win)
+
+    # Event loop
+    while True:
+        ev = win.WaitEvent()
+
+        if (ev.type == input.EV_KEY and ev.val.val == input.KEY_ESC):
+           sys.exit(0)
+        elif (ev.type == input.EV_SYS):
+           if (ev.code == input.EV_SYS_QUIT):
+               sys.exit(0)
+           if (ev.code == input.EV_SYS_RESIZE):
+               win.ResizeAck()
+               redraw(win)
+
+if __name__ == '__main__':
+    main()
http://repo.or.cz/w/gfxprim.git/commit/6cdc1275dfebee03fcc18a35db7097d9bc81b...
commit 6cdc1275dfebee03fcc18a35db7097d9bc81bac2
Author: Cyril Hrubis metan@ucw.cz
Date:   Sat Apr 6 21:52:57 2013 +0200
pywrap: text: Add wrappers for GP_TextStyle.
Signed-off-by: Cyril Hrubis metan@ucw.cz
diff --git a/pylib/gfxprim/text/__init__.py b/pylib/gfxprim/text/__init__.py
index 85b149a..2561900 100644
--- a/pylib/gfxprim/text/__init__.py
+++ b/pylib/gfxprim/text/__init__.py
@@ -12,7 +12,7 @@ from . import C
def _init(module):
   "Extend context with text submodule"
-
+  
   from ..utils import extend, add_swig_getmethod, add_swig_setmethod
   from ..core import Context as _context
@@ -34,7 +34,9 @@ def _init(module):
     '^GP_[A-Z0-9_]*$',
     ]
   import_members(c_text, C, include=const_regexes, sub=strip_GP)
-  
+
+  import_members(c_text, module, sub=strip_GP)
+
   for name in ['Text']:
     extend_submodule(TextSubmodule, name, c_text.__getattribute__('GP_' + name))
diff --git a/pylib/gfxprim/text/text.i b/pylib/gfxprim/text/text.i
index 49335bc..485c31c 100644
--- a/pylib/gfxprim/text/text.i
+++ b/pylib/gfxprim/text/text.i
@@ -4,6 +4,7 @@
 %{
 #include "text/GP_Text.h"
 #include "text/GP_Font.h"
+#include "core/GP_Debug.h"
 %}
%import ../core/core.i
@@ -14,5 +15,31 @@
 %include "GP_Font.h"
 %include "GP_DefaultFont.h"
 %include "GP_TextMetric.h"
-%include "GP_TextStyle.h"
+/* GP_TextStyle wrappers */
+%extend GP_TextStyle {
+  ~GP_TextStyle() {
+    GP_DEBUG(2, "[wrapper] GP_TextStyleFree (%p)", $self);
+    free($self);
+  }
+  GP_TextStyle(const struct GP_FontFace *font, int xspace, int yspace,
+               int xmul, int ymul, int spacing) {
+    GP_TextStyle *style = malloc(sizeof(GP_TextStyle));
+
+    GP_DEBUG(2, "[wrapper] GP_TextStyleAlloc (%p)", style);
+
+    if (style == NULL)
+      return NULL;
+
+    style->font = font;
+    style->pixel_xspace = xspace;
+    style->pixel_yspace = yspace;
+    style->pixel_xmul = xmul;
+    style->pixel_ymul = ymul;
+    style->char_xspace = spacing;
+
+    return style;
+  }
+}
+
+%include "GP_TextStyle.h"
http://repo.or.cz/w/gfxprim.git/commit/e6bba64ea14e9b8beb74ead24a54a61be48af...
commit e6bba64ea14e9b8beb74ead24a54a61be48afacf
Author: Cyril Hrubis metan@ucw.cz
Date:   Sat Apr 6 21:25:21 2013 +0200
lib: text: Assert that style->font is not NULL.
Signed-off-by: Cyril Hrubis metan@ucw.cz
diff --git a/libs/text/GP_TextMetric.c b/libs/text/GP_TextMetric.c
index 45371fe..26b26f8 100644
--- a/libs/text/GP_TextMetric.c
+++ b/libs/text/GP_TextMetric.c
@@ -108,6 +108,16 @@ static unsigned int first_glyph_width(const GP_TextStyle *style, int c)
    return multiply_width(style, glyph->advance_x - glyph->bearing_x);
 }
+static const GP_TextStyle *assert_style(const GP_TextStyle *style)
+{
+	if (style == NULL)
+		style = &GP_DefaultStyle;
+
+	GP_ASSERT(style->font != NULL);
+
+	return style;
+}
+
 /*
  * Returns text width.
  *
@@ -129,8 +139,7 @@ unsigned int GP_TextWidth(const GP_TextStyle *style, const char *str)
 {
    unsigned int i, len;
-	if (style == NULL)
-		style = &GP_DefaultStyle;
+	style = assert_style(style);
if (str == NULL || str[0] == '0')
    	return 0;
@@ -158,8 +167,7 @@ unsigned int GP_TextWidth(const GP_TextStyle *style, const char *str)
  */
 GP_Size GP_TextMaxWidth(const GP_TextStyle *style, unsigned int len)
 {
-	if (style == NULL)
-		style = &GP_DefaultStyle;
+	style = assert_style(style);
if (len == 0)
    	return 0;
@@ -174,9 +182,8 @@ GP_Size GP_TextMaxWidth(const GP_TextStyle *style, unsigned int len)
 GP_Size GP_TextMaxStrWidth(const GP_TextStyle *style, const char *str,
                            unsigned int len)
 {
-	if (style == NULL)
-		style = &GP_DefaultStyle;
-	
+	style = assert_style(style);
+
    if (len == 0 || str == NULL)
    	return 0;
@@ -193,9 +200,8 @@ static unsigned int multiply_height(const GP_TextStyle *style, unsigned int h)
GP_Size GP_TextHeight(const GP_TextStyle *style)
 {
-	if (style == NULL)
-		style = &GP_DefaultStyle;
-	
+	style = assert_style(style);
+
    unsigned int height = style->font->ascend + style->font->descend;
return multiply_height(style, height);
@@ -203,17 +209,14 @@ GP_Size GP_TextHeight(const GP_TextStyle *style)
GP_Size GP_TextAscent(const GP_TextStyle *style)
 {
-	if (style == NULL)
-		style = &GP_DefaultStyle;
+	style = assert_style(style);
-	
    return multiply_height(style, style->font->ascend);
 }
GP_Size GP_TextDescent(const GP_TextStyle *style)
 {
-	if (style == NULL)
-		style = &GP_DefaultStyle;
+	style = assert_style(style);
return multiply_height(style, style->font->descend);
 }
-----------------------------------------------------------------------
Summary of changes:
 demos/py_simple/font_style.py  |   58 ++++++++++++++++++++++++++++++++++++++++
 libs/text/GP_TextMetric.c      |   33 ++++++++++++----------
 pylib/gfxprim/text/__init__.py |    6 +++-
 pylib/gfxprim/text/text.i      |   29 +++++++++++++++++++-
 4 files changed, 108 insertions(+), 18 deletions(-)
 create mode 100755 demos/py_simple/font_style.py
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