diff options
Diffstat (limited to 'pango/pangowin32.c')
| -rw-r--r-- | pango/pangowin32.c | 132 |
1 files changed, 115 insertions, 17 deletions
diff --git a/pango/pangowin32.c b/pango/pangowin32.c index 6e48ce33..ea7b41dc 100644 --- a/pango/pangowin32.c +++ b/pango/pangowin32.c @@ -32,27 +32,14 @@ #include "pangowin32-private.h" #include "modules.h" -#define PANGO_TYPE_WIN32_FONT (pango_win32_font_get_type ()) -#define PANGO_WIN32_FONT(object) (G_TYPE_CHECK_INSTANCE_CAST ((object), PANGO_TYPE_WIN32_FONT, PangoWin32Font)) -#define PANGO_WIN32_FONT_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), PANGO_TYPE_WIN32_FONT, PangoWin32FontClass)) -#define PANGO_WIN32_IS_FONT(object) (G_TYPE_CHECK_INSTANCE_TYPE ((object), PANGO_TYPE_WIN32_FONT)) -#define PANGO_WIN32_IS_FONT_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), PANGO_TYPE_WIN32_FONT)) -#define PANGO_WIN32_FONT_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), PANGO_TYPE_WIN32_FONT, PangoWin32FontClass)) - #define PANGO_WIN32_UNKNOWN_FLAG 0x10000000 HDC pango_win32_hdc; OSVERSIONINFO pango_win32_os_version_info; gboolean pango_win32_debug = FALSE; -typedef struct _PangoWin32FontClass PangoWin32FontClass; typedef struct _PangoWin32MetricsInfo PangoWin32MetricsInfo; -struct _PangoWin32FontClass -{ - PangoFontClass parent_class; -}; - struct _PangoWin32MetricsInfo { const char *sample_str; @@ -62,6 +49,11 @@ struct _PangoWin32MetricsInfo static void pango_win32_font_dispose (GObject *object); static void pango_win32_font_finalize (GObject *object); +static gboolean pango_win32_font_real_select_font (PangoFont *font, + HDC hdc); +static void pango_win32_font_real_done_font (PangoFont *font); +static double pango_win32_font_real_get_scale_factor (PangoFont *font); + static PangoFontDescription *pango_win32_font_describe (PangoFont *font); static PangoCoverage *pango_win32_font_get_coverage (PangoFont *font, PangoLanguage *lang); @@ -77,6 +69,13 @@ static void pango_win32_font_get_glyph_extents (PangoFont PangoRectangle *logical_rect); static PangoFontMetrics * pango_win32_font_get_metrics (PangoFont *font, PangoLanguage *lang); +static PangoFontMap * pango_win32_font_get_font_map (PangoFont *font); + +static gboolean pango_win32_font_real_select_font (PangoFont *font, + HDC hdc); +static void pango_win32_font_real_done_font (PangoFont *font); +static double pango_win32_font_real_get_scale_factor (PangoFont *font); + static HFONT pango_win32_get_hfont (PangoFont *font); static void pango_win32_get_item_properties (PangoItem *item, PangoUnderline *uline, @@ -85,7 +84,7 @@ static void pango_win32_get_item_properties (PangoItem PangoAttrColor *bg_color, gboolean *bg_set); -static inline HFONT +static HFONT pango_win32_get_hfont (PangoFont *font) { PangoWin32Font *win32font = (PangoWin32Font *)font; @@ -218,6 +217,11 @@ pango_win32_font_class_init (PangoWin32FontClass *class) font_class->find_shaper = pango_win32_font_find_shaper; font_class->get_glyph_extents = pango_win32_font_get_glyph_extents; font_class->get_metrics = pango_win32_font_get_metrics; + font_class->get_font_map = pango_win32_font_get_font_map; + + class->select_font = pango_win32_font_real_select_font; + class->done_font = pango_win32_font_real_done_font; + class->get_scale_factor = pango_win32_font_real_get_scale_factor; pango_win32_get_dc (); } @@ -624,6 +628,43 @@ pango_win32_font_get_metrics (PangoFont *font, return pango_font_metrics_ref (info->metrics); } +static PangoFontMap * +pango_win32_font_get_font_map (PangoFont *font) +{ + PangoWin32Font *win32font = (PangoWin32Font *)font; + + return win32font->fontmap; +} + +static gboolean +pango_win32_font_real_select_font (PangoFont *font, + HDC hdc) +{ + HFONT hfont = pango_win32_get_hfont (font); + + if (!hfont) + return FALSE; + + if (!SelectObject (hdc, hfont)) + { + g_warning ("pango_win32_font_real_select_font: Cannot select font\n"); + return FALSE; + } + + return TRUE; +} + +static void +pango_win32_font_real_done_font (PangoFont *font) +{ +} + +static double +pango_win32_font_real_get_scale_factor (PangoFont *font) +{ + return PANGO_SCALE; +} + /** * pango_win32_font_logfont: * @font: a #PangoFont which must be from the Win32 backend @@ -648,6 +689,64 @@ pango_win32_font_logfont (PangoFont *font) return lfp; } +/** + * pango_win32_font_select_font: + * @font: a #PangoFont from the Win32 backend + * @scale: location to store a scale factor from Windows + * units to Pango Units. + * + * Selects the font into the specified DC and changes the mapping mode + * and world transformation of the DC appropriately for the font. + * You may want to surround the use of this function with calls + * to SaveDC and RestoreDC. Call pango_win32_font_done_font() when + * you are done using the DC to release allocated resources. + * + * See + * + * Return value: %TRUE if the operation succeeded. + **/ +gboolean +pango_win32_font_select_font (PangoFont *font, + HDC hdc) +{ + g_return_val_if_fail (PANGO_WIN32_IS_FONT (font), FALSE); + + return PANGO_WIN32_FONT_GET_CLASS (font)->select_font (font, hdc); +} + +/** + * pango_win32_font_done_font: + * @font: a #PangoFont from the win32 backend + * + * Releases any resources allocated by pango_win32_font_done_font() + **/ +void +pango_win32_font_done_font (PangoFont *font) +{ + g_return_if_fail (PANGO_WIN32_IS_FONT (font)); + + PANGO_WIN32_FONT_GET_CLASS (font)->done_font (font); +} + +/** + * pango_win32_font_get_scale_factor: + * @font: a #PangoFont from the win32 backend + * + * Returns the scale factor from logical units in the coordinate + * space used by pango_win32_font_select_font() to Pango units + * in user space. + * + * Return value: factor to multiply logical units by to get Pango + * units. + **/ +double +pango_win32_font_get_scale_factor (PangoFont *font) +{ + g_return_val_if_fail (PANGO_WIN32_IS_FONT (font), 1.); + + return PANGO_WIN32_FONT_GET_CLASS (font)->get_scale_factor (font); +} + static void pango_win32_font_dispose (GObject *object) { @@ -1179,15 +1278,14 @@ static struct type_4_cmap * font_get_unicode_table (PangoFont *font) { PangoWin32Font *win32font = (PangoWin32Font *)font; - HFONT hfont; struct type_4_cmap *table; if (win32font->win32face->unicode_table) return (struct type_4_cmap *)win32font->win32face->unicode_table; - hfont = pango_win32_get_hfont (font); - SelectObject (pango_win32_hdc, hfont); + pango_win32_font_select_font (font, pango_win32_hdc); table = get_unicode_mapping (pango_win32_hdc); + pango_win32_font_done_font (font); win32font->win32face->unicode_table = table; |