pango/Makefile.am examples/Makefile.am pango/testfonts.c Rename

2006-08-23  Tor Lillqvist  <tml@novell.com>

	* pango/Makefile.am
	* examples/Makefile.am
	* pango/testfonts.c
	* examples/pangowin32tobmp.c: Rename pango/testfonts.c to
	examples/pangowin32tobmp.c. (#104151)

1 files changed, 450 insertions, 0 deletions

diff --git a/examples/pangowin32tobmp.c b/examples/pangowin32tobmp.c
new file mode 100644
index 00000000..8586a01a
--- /dev/null
+++ b/examples/pangowin32tobmp.c
@@ -0,0 +1,450 @@
+/* Pango
+ * Copyright (C) 1999 Red Hat Software
+ *
+ * testfonts.c:
+ * Copyright (C) 2001 Hans Breuer
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.	 See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+#include <config.h>
+
+#include <glib.h>
+#include <stdlib.h>
+#include <gmodule.h>
+#include "pango.h"
+#include "pango-impl-utils.h"
+#include "pangowin32.h"
+
+
+#include <errno.h>
+#include <string.h>
+#ifdef HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+#include <stdio.h>
+#include <locale.h>
+
+#include <windows.h>
+
+static HDC pre_render (int width, int height);
+static void post_render (HDC hdc, const char* sFile);
+
+static float 
+calc_duration (GTimeVal *tv1, GTimeVal *tv0)
+{
+  return (  ((float)tv1->tv_sec - tv0->tv_sec)
+          + (tv1->tv_usec - tv0->tv_usec) / 1000000.0);
+}
+
+static int
+compare_font_family (PangoFontFamily** a,
+                     PangoFontFamily** b)
+{
+  return strcmp (pango_font_family_get_name (*a), pango_font_family_get_name (*b));
+}
+
+int main (int argc, char **argv)
+{
+  PangoFontMap *fontmap = pango_win32_font_map_for_display();
+  PangoContext *context;
+  PangoCoverage * coverage = NULL;
+  PangoFont* font = NULL;
+  PangoFontFamily** families = NULL;
+  PangoFontFace** faces = NULL;
+  int nb, i;
+  gchar* family_name = NULL;
+  PangoLanguage *lang = pango_language_from_string (g_win32_getlocale ());
+  HDC hdc = NULL;
+  int line = 0;
+  GTimeVal tv0, tv1;
+  int my_font_size = 12;
+
+  printf ("# Pango Font Test\n"
+	  "# Language: %s\n"
+	  "#\n", pango_language_to_string (lang));
+
+  /* this wasn't necessary with previous version
+   *
+   * force initialization of built-in engines, otherwise
+   * the rendering get's really fast - too fast to work :-(
+   */
+  context = pango_win32_get_context ();
+
+  if (argc == 1)		/* No arguments given */
+    {
+      char *std_fonts[] = {"Sans 12", "Serif 12", "Monospace 12"};
+
+      /* try to load some fonts often hardcoded */
+      for (i = 0; i < G_N_ELEMENTS (std_fonts); i++)
+        {
+          PangoFontDescription *desc = pango_font_description_from_string(std_fonts[i]);
+
+          /* spits warnings if font cannot be loaded */
+          font = pango_font_map_load_font (fontmap, context, desc);
+
+          g_object_unref (font);
+        }
+    }
+  else
+    {
+      PangoFontDescription *desc = NULL;
+      GString *s;
+
+      s = g_string_new (argv[1]);
+      for (i = 2; i < argc; i++)
+        {
+          s = g_string_append_c (s, ' ');
+          s = g_string_append (s, argv[i]);
+
+          if (0 != atoi (argv[i]))
+            my_font_size = atoi (argv[i]);
+        }
+
+      desc = pango_font_description_from_string(s->str);
+      family_name = g_strdup (pango_font_description_get_family (desc));
+
+      font = pango_font_map_load_font (fontmap, context, desc);
+      
+      coverage = pango_font_get_coverage (font, lang);
+
+      /* ... */
+
+      pango_coverage_unref (coverage);
+      pango_font_description_free (desc);
+      g_object_unref (font);
+    }
+
+  pango_font_map_list_families (fontmap, &families, &nb);
+
+  if (!family_name)
+    {
+      qsort (families, nb, sizeof (PangoFontFamily*), compare_font_family);
+    }
+  else
+    {
+      /* Get on the family faces. No simple way ? */
+      for (i = 0; i < nb; i++)
+        {
+          if (0 == g_ascii_strcasecmp (pango_font_family_get_name (families[i]), family_name))
+            {
+              pango_font_family_list_faces (families[i], &faces, &nb);
+              /* now nb is the number of faces */
+              break;
+            }
+        }
+      g_free (families);
+      families = NULL;
+      g_free (family_name);
+      family_name = NULL;
+    }
+
+  hdc = pre_render(my_font_size * 64, 3 * my_font_size * nb / 2);
+
+  for (i = 0; i < nb; i++)
+    {
+      PangoFontDescription *desc;
+      const char *f_name;
+      PangoWeight weight;
+      PangoStyle  style;
+
+      if (families)
+        {
+          desc = pango_font_description_new ();
+
+          f_name =  pango_font_family_get_name (families[i]);
+          pango_font_description_set_family (desc, f_name);
+        }
+      else
+        {
+          desc = pango_font_face_describe (faces[i]);
+          /* this is _not_ the family name from above */
+          f_name = pango_font_description_get_family (desc);
+        }
+      weight = pango_font_description_get_weight (desc);
+      style  = pango_font_description_get_style  (desc);
+
+      g_print ("%s; Style: %d; Weight: %d\n",
+               f_name, style, weight);
+
+      /* give it an arbitray size to load it */
+      pango_font_description_set_size (desc, my_font_size * PANGO_SCALE);
+
+      g_get_current_time (&tv0);
+      font = pango_font_map_load_font (fontmap, context, desc);
+      g_get_current_time (&tv1);
+      g_print ("\tpango_font_map_load_font took %.3f sec\n", calc_duration (&tv1, &tv0));
+
+      if (font) 
+        {
+          PangoItem     *item;
+          PangoGlyphString * glyphs;
+          char s[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
+                     "abcdefghijklmnopqrstuvwxyz"
+                     "1234567890 -+*/!\xc2\xa7$%&()[]{}<>|#=?@";
+
+          g_get_current_time (&tv0);
+          coverage = pango_font_get_coverage (font, lang);
+          g_get_current_time (&tv1);
+          g_print ("\tpango_font_get_coverage took %.3f sec\n", calc_duration (&tv1, &tv0));
+
+          /* ... */
+          pango_context_set_language (context, lang);
+          pango_context_set_base_dir (context, PANGO_DIRECTION_LTR);
+          pango_context_set_font_description (context, desc);
+
+          glyphs = pango_glyph_string_new ();
+          item = pango_item_new ();
+
+          item->analysis.shape_engine = pango_font_find_shaper (font, lang, s[0]);
+          item->analysis.font = g_object_ref (font);
+          pango_shape ( s, sizeof(s), &(item->analysis), glyphs);
+
+          if (hdc) 
+            {
+              /* the positioning isn't correct */
+              char* name = g_strdup_printf ("%s (%s%s)",
+                                            f_name,
+                                            weight == PANGO_WEIGHT_NORMAL ? "n" :
+                                              (weight == PANGO_WEIGHT_HEAVY ? "h" :
+                                              (weight > PANGO_WEIGHT_NORMAL ? "b" : "l")),
+                                            style == PANGO_STYLE_OBLIQUE ? "o" :
+                                              (style == PANGO_STYLE_ITALIC ? "i" : "n"));
+
+              TextOut (hdc, 0, line, name, strlen(name));
+              g_get_current_time (&tv0);
+              pango_win32_render (hdc, font, glyphs, 200, line);
+              g_get_current_time (&tv1);
+              g_print ("\tpango_win32_render took %.3f sec\n", 
+                       calc_duration (&tv1, &tv0));
+              line += (3 * my_font_size / 2);
+              g_free(name);
+            }
+
+          /* free glyphs, ... */
+          pango_glyph_string_free (glyphs);
+          pango_item_free (item);
+
+          pango_coverage_unref (coverage); 
+          g_object_unref (font);
+        }
+      pango_font_description_free (desc);
+    }
+
+  if (hdc)
+    post_render (hdc, "pango-fonts.bmp");
+
+  g_free (families);
+  g_free (faces);
+
+  return 0;
+}
+
+/*
+ * Real Win32 specific render support
+ */
+static HBITMAP hbmpold = NULL;
+static HWND hwndRender = NULL;
+
+static BOOL
+SaveBitmap (HBITMAP hBmp, const char* pszFile);
+
+static HDC
+pre_render (int width, int height)
+{
+  HDC hmemdc;
+  HDC hdc;
+  HBITMAP hbmp;
+  RECT r;
+  r.top = 0; r.left = 0;
+  r.right  = width;
+  r.bottom = height;
+
+  hwndRender = CreateWindow ("EDIT",
+			     "pango-render-window",
+			     WS_DISABLED,
+			     0, 0, width, height,
+			     GetDesktopWindow(),
+			     NULL, 
+			     GetModuleHandle(NULL),
+			     NULL);
+
+  if (hwndRender == NULL)
+    fprintf (stderr, "Couldn't create window\n"), exit (1);
+
+  hdc = GetDC(hwndRender);
+  hmemdc = CreateCompatibleDC (hdc);
+  if (hdc == NULL)
+    fprintf (stderr, "CreateCompatibleDC failed\n"), exit (1);
+
+  hbmp = CreateCompatibleBitmap (hdc, width, height);
+  if (hbmp == NULL)
+    fprintf (stderr, "CreateCompatibleBitmap failed\n"), exit (1);
+
+  hbmpold = SelectObject(hmemdc, hbmp);
+
+  FillRect (hmemdc, &r, GetStockObject(WHITE_BRUSH));
+  SetTextColor (hmemdc, RGB (0,0,0));
+  SetBkMode (hmemdc, TRANSPARENT);
+  return hmemdc;
+}
+
+static void
+post_render (HDC hdc, const char* sFile)
+{
+  HBITMAP hbmp = SelectObject(hdc, hbmpold);
+  if (sFile)
+    SaveBitmap (hbmp, sFile);
+  DeleteObject (hbmp);
+  DeleteDC (hdc);
+  ReleaseDC(hwndRender, GetDC(hwndRender));
+  DestroyWindow (hwndRender);
+}
+
+static BOOL
+SaveBitmap (HBITMAP hBmp, const char* pszFile)
+{
+  BITMAP bmp;
+  PBITMAPINFO pbmi;
+  WORD    cClrBits;
+  /* Retrieve the bitmap's color format, width, and height. */
+  if (!GetObject(hBmp, sizeof(BITMAP), (LPSTR)&bmp))
+    return FALSE;
+  /* Convert the color format to a count of bits. */
+  cClrBits = (WORD)(bmp.bmPlanes * bmp.bmBitsPixel);
+  if (cClrBits == 1)
+    cClrBits = 1;
+  else if (cClrBits <= 4)
+    cClrBits = 4;
+  else if (cClrBits <= 8)
+    cClrBits = 8;
+  else if (cClrBits <= 16)
+    cClrBits = 16;
+  else if (cClrBits <= 24)
+    cClrBits = 24;
+  else
+    cClrBits = 32;
+
+  /*
+   * Allocate memory for the BITMAPINFO structure. (This structure
+   * contains a BITMAPINFOHEADER structure and an array of RGBQUAD data
+   * structures.)      */
+  if (cClrBits < 24)
+    pbmi = (PBITMAPINFO) GlobalAlloc(LPTR,
+				    sizeof(BITMAPINFOHEADER) +
+				    sizeof(RGBQUAD) * (1 << cClrBits));
+  /*
+   * There is no RGBQUAD array for the 24-bit-per-pixel format.      */
+  else
+    pbmi = (PBITMAPINFO) GlobalAlloc(LPTR,
+				    sizeof(BITMAPINFOHEADER));
+  /* Initialize the fields in the BITMAPINFO structure. */
+  pbmi->bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
+  pbmi->bmiHeader.biWidth = bmp.bmWidth;
+  pbmi->bmiHeader.biHeight = bmp.bmHeight;
+  pbmi->bmiHeader.biPlanes = bmp.bmPlanes;
+  pbmi->bmiHeader.biBitCount = bmp.bmBitsPixel;
+  if (cClrBits < 24)
+    pbmi->bmiHeader.biClrUsed = (1 << cClrBits);
+  else
+    pbmi->bmiHeader.biClrUsed = 0;
+  /* If the bitmap is not compressed, set the BI_RGB flag. */
+  pbmi->bmiHeader.biCompression = BI_RGB;
+  /*
+   * Compute the number of bytes in the array of color
+   * indices and store the result in biSizeImage.
+   */
+  pbmi->bmiHeader.biSizeImage = (pbmi->bmiHeader.biWidth + 7) /8
+				  * pbmi->bmiHeader.biHeight
+				  * cClrBits;
+  /*
+   * Set biClrImportant to 0, indicating that all of the
+   * device colors are important.
+   */
+  pbmi->bmiHeader.biClrImportant = 0;
+
+  { // C sucks
+  HANDLE hf;                  /* file handle */
+  BITMAPFILEHEADER hdr;       /* bitmap file-header */
+  PBITMAPINFOHEADER pbih;     /* bitmap info-header */
+  LPBYTE lpBits;              /* memory pointer */
+  DWORD dwTotal;              /* total count of bytes */
+  DWORD cb;                   /* incremental count of bytes */
+  DWORD dwTmp;
+  HDC hDC;
+  
+  pbih = (PBITMAPINFOHEADER) pbmi;
+  lpBits = (LPBYTE) GlobalAlloc(GMEM_FIXED, pbih->biSizeImage);
+  if (!lpBits)
+    return FALSE;
+  /*
+   * Retrieve the color table (RGBQUAD array) and the bits
+   * (array of palette indices) from the DIB.
+   */
+  hDC = CreateCompatibleDC(NULL);
+  if (!GetDIBits(hDC, hBmp, 0, (WORD) pbih->biHeight,
+                 lpBits, pbmi, DIB_RGB_COLORS))
+    return FALSE;
+  /* Create the .BMP file. */
+  hf = CreateFile (pszFile,
+		   GENERIC_READ | GENERIC_WRITE,
+		   (DWORD) 0,
+		   (LPSECURITY_ATTRIBUTES) NULL,
+		   CREATE_ALWAYS,
+		   FILE_ATTRIBUTE_NORMAL,
+		   (HANDLE) NULL);
+  
+  if (hf == INVALID_HANDLE_VALUE)
+    return FALSE;
+  hdr.bfType = 0x4d42;        /* 0x42 = "B" 0x4d = "M" */
+  /* Compute the size of the entire file. */
+  hdr.bfSize = (DWORD) (sizeof(BITMAPFILEHEADER)
+                        + pbih->biSize + pbih->biClrUsed
+			* sizeof(RGBQUAD) + pbih->biSizeImage);
+  hdr.bfReserved1 = 0;
+  hdr.bfReserved2 = 0;
+  /* Compute the offset to the array of color indices. */
+  hdr.bfOffBits = (DWORD) sizeof(BITMAPFILEHEADER)
+                          + pbih->biSize + pbih->biClrUsed
+			  * sizeof (RGBQUAD);
+  /* Copy the BITMAPFILEHEADER into the .BMP file. */
+  if (!WriteFile(hf, (LPVOID) &hdr, sizeof(BITMAPFILEHEADER),
+		 (LPDWORD) &dwTmp, (LPOVERLAPPED) NULL))
+    return FALSE;
+  /* Copy the BITMAPINFOHEADER and RGBQUAD array into the file. */
+  if (!WriteFile(hf, (LPVOID) pbih, sizeof(BITMAPINFOHEADER)
+                     + pbih->biClrUsed * sizeof (RGBQUAD),
+		     (LPDWORD) &dwTmp, (LPOVERLAPPED) NULL))
+    return FALSE;
+  /* Copy the array of color indices into the .BMP file. */
+  dwTotal = cb = pbih->biSizeImage;
+
+  if (!WriteFile(hf, (LPSTR) lpBits, (int) cb,
+                 (LPDWORD) &dwTotal, (LPOVERLAPPED) NULL)) 
+      return FALSE;
+
+  /* Close the .BMP file. */
+  if (!CloseHandle(hf))
+    return FALSE;
+  
+  /* Free memory. */
+  GlobalFree((HGLOBAL)lpBits);
+  GlobalFree((HGLOBAL)pbmi);
+
+  DeleteDC(hDC);
+  } // C sucks
+  return TRUE;
+}