diff options
Diffstat (limited to 'trunk/examples/pangowin32tobmp.c')
| -rw-r--r-- | trunk/examples/pangowin32tobmp.c | 450 |
1 files changed, 450 insertions, 0 deletions
diff --git a/trunk/examples/pangowin32tobmp.c b/trunk/examples/pangowin32tobmp.c new file mode 100644 index 00000000..19ef392d --- /dev/null +++ b/trunk/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; +} |