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authorBehdad Esfahbod <behdad@gnome.org>2007-05-04 08:30:34 +0000
committerBehdad Esfahbod <behdad@src.gnome.org>2007-05-04 08:30:34 +0000
commit7dfb3c077cc7b2234fe9ab098a237c11e8de55da (patch)
tree84599bc3dc35f3ee7ee3f00d44496626b92963a4 /pango/pangocairo-fontmap.c
parent72ebcd15ee111385bd6fd2304124c37dabfb04cd (diff)
downloadpango-7dfb3c077cc7b2234fe9ab098a237c11e8de55da.tar.gz
Rip non-fontmap stuff from pangocairo-fontmap.c into pangocairo-context.c.
2007-05-04 Behdad Esfahbod <behdad@gnome.org> * pango/Makefile.am: * pango/pangocairo-context.c: * pango/pangocairo-fontmap.c: Rip non-fontmap stuff from pangocairo-fontmap.c into pangocairo-context.c. svn path=/trunk/; revision=2260
Diffstat (limited to 'pango/pangocairo-fontmap.c')
-rw-r--r--pango/pangocairo-fontmap.c299
1 files changed, 0 insertions, 299 deletions
diff --git a/pango/pangocairo-fontmap.c b/pango/pangocairo-fontmap.c
index 56384953..57540cd8 100644
--- a/pango/pangocairo-fontmap.c
+++ b/pango/pangocairo-fontmap.c
@@ -197,302 +197,3 @@ _pango_cairo_font_map_get_renderer (PangoCairoFontMap *fontmap)
return (* PANGO_CAIRO_FONT_MAP_GET_IFACE (fontmap)->get_renderer) (fontmap);
}
-
-typedef struct _PangoCairoContextInfo PangoCairoContextInfo;
-
-struct _PangoCairoContextInfo
-{
- double dpi;
-
- cairo_font_options_t *set_options;
- cairo_font_options_t *surface_options;
- cairo_font_options_t *merged_options;
-};
-
-static void
-free_context_info (PangoCairoContextInfo *info)
-{
- if (info->set_options)
- cairo_font_options_destroy (info->set_options);
- if (info->surface_options)
- cairo_font_options_destroy (info->surface_options);
- if (info->merged_options)
- cairo_font_options_destroy (info->merged_options);
-
- g_slice_free (PangoCairoContextInfo, info);
-}
-
-static PangoCairoContextInfo *
-get_context_info (PangoContext *context,
- gboolean create)
-{
- static GQuark context_info_quark;
- PangoCairoContextInfo *info;
-
- if (G_UNLIKELY (!context_info_quark))
- context_info_quark = g_quark_from_static_string ("pango-cairo-context-info");
-
- info = g_object_get_qdata (G_OBJECT (context), context_info_quark);
-
- if (G_UNLIKELY (!info) && create)
- {
- info = g_slice_new (PangoCairoContextInfo);
- info->dpi = -1.0;
- info->set_options = NULL;
- info->surface_options = NULL;
- info->merged_options = NULL;
-
- g_object_set_qdata_full (G_OBJECT (context), context_info_quark,
- info, (GDestroyNotify)free_context_info);
- }
-
- return info;
-}
-
-/**
- * pango_cairo_update_context:
- * @cr: a Cairo context
- * @context: a #PangoContext, from pango_cairo_font_map_create_context()
- *
- * Updates a #PangoContext previously created for use with Cairo to
- * match the current transformation and target surface of a Cairo
- * context. If any layouts have been created for the context,
- * it's necessary to call pango_layout_context_changed() on those
- * layouts.
- *
- * Since: 1.10
- **/
-void
-pango_cairo_update_context (cairo_t *cr,
- PangoContext *context)
-{
- PangoCairoContextInfo *info;
- cairo_matrix_t cairo_matrix;
- cairo_surface_t *target;
- PangoMatrix pango_matrix;
-
- g_return_if_fail (cr != NULL);
- g_return_if_fail (PANGO_IS_CONTEXT (context));
-
- info = get_context_info (context, TRUE);
-
- cairo_get_matrix (cr, &cairo_matrix);
- pango_matrix.xx = cairo_matrix.xx;
- pango_matrix.yx = cairo_matrix.yx;
- pango_matrix.xy = cairo_matrix.xy;
- pango_matrix.yy = cairo_matrix.yy;
- pango_matrix.x0 = cairo_matrix.x0;
- pango_matrix.y0 = cairo_matrix.y0;
-
- pango_context_set_matrix (context, &pango_matrix);
-
- if (!info->surface_options)
- info->surface_options = cairo_font_options_create ();
-
- target = cairo_get_target (cr);
- cairo_surface_get_font_options (target, info->surface_options);
-
- if (info->merged_options)
- {
- cairo_font_options_destroy (info->merged_options);
- info->merged_options = NULL;
- }
-}
-
-/**
- * pango_cairo_context_set_resolution:
- * @context: a #PangoContext, from pango_cairo_font_map_create_context()
- * @dpi: the resolution in "dots per inch". (Physical inches aren't actually
- * involved; the terminology is conventional.) A 0 or negative value
- * means to use the resolution from the font map.
- *
- * Sets the resolution for the context. This is a scale factor between
- * points specified in a #PangoFontDescription and Cairo units. The
- * default value is 96, meaning that a 10 point font will be 13
- * units high. (10 * 96. / 72. = 13.3).
- *
- * Since: 1.10
- **/
-void
-pango_cairo_context_set_resolution (PangoContext *context,
- double dpi)
-{
- PangoCairoContextInfo *info = get_context_info (context, TRUE);
- info->dpi = dpi;
-}
-
-/**
- * pango_cairo_context_get_resolution:
- * @context: a #PangoContext, from pango_cairo_font_map_create_context()
- *
- * Gets the resolution for the context. See pango_cairo_context_set_resolution()
- *
- * Return value: the resolution in "dots per inch". A negative value will
- * be returned if no resolution has previously been set.
- *
- * Since: 1.10
- **/
-double
-pango_cairo_context_get_resolution (PangoContext *context)
-{
- PangoCairoContextInfo *info = get_context_info (context, FALSE);
-
- if (info)
- return info->dpi;
- else
- return -1.0;
-}
-
-/**
- * pango_cairo_context_set_font_options:
- * @context: a #PangoContext, from pango_cairo_font_map_create_context()
- * @options: a #cairo_font_options_t, or %NULL to unset any previously set
- * options. A copy is made.
- *
- * Sets the font options used when rendering text with this context.
- * These options override any options that pango_cairo_update_context()
- * derives from the target surface.
- */
-void
-pango_cairo_context_set_font_options (PangoContext *context,
- const cairo_font_options_t *options)
-{
- PangoCairoContextInfo *info;
-
- g_return_if_fail (PANGO_IS_CONTEXT (context));
-
- info = get_context_info (context, TRUE);
-
- if (info->set_options)
- cairo_font_options_destroy (info->set_options);
-
- if (options)
- info->set_options = cairo_font_options_copy (options);
- else
- info->set_options = NULL;
-
- if (info->merged_options)
- {
- cairo_font_options_destroy (info->merged_options);
- info->merged_options = NULL;
- }
-}
-
-/**
- * pango_cairo_context_get_font_options:
- * @context: a #PangoContext, from pango_cairo_font_map_create_context()
- *
- * Retrieves any font rendering options previously set with
- * pango_cairo_font_map_set_font_options(). This functions not report options
- * that are derived from the target surface by pango_cairo_update_context()
- *
- * Return value: the font options previously set on the context, or %NULL
- * if no options have been set. This value is owned by the context
- * and must not be modified or freed.
- **/
-G_CONST_RETURN cairo_font_options_t *
-pango_cairo_context_get_font_options (PangoContext *context)
-{
- PangoCairoContextInfo *info;
-
- g_return_val_if_fail (PANGO_IS_CONTEXT (context), NULL);
-
- info = get_context_info (context, FALSE);
-
- if (info)
- return info->set_options;
- else
- return NULL;
-}
-
-/**
- * _pango_cairo_context_merge_font_options:
- * @context: a #PangoContext
- * @options: a #cairo_font_options_t
- *
- * Merge together options from the target surface and explicitly set
- * on the context.
- *
- * Return value: the combined set of font options. This value is owned
- * by the context and must not be modified or freed.
- **/
-G_CONST_RETURN cairo_font_options_t *
-_pango_cairo_context_get_merged_font_options (PangoContext *context)
-{
- PangoCairoContextInfo *info = get_context_info (context, TRUE);
-
- if (!info->merged_options)
- {
- info->merged_options = cairo_font_options_create ();
-
- if (info->surface_options)
- cairo_font_options_merge (info->merged_options, info->surface_options);
- if (info->set_options)
- cairo_font_options_merge (info->merged_options, info->set_options);
- }
-
- return info->merged_options;
-}
-
-/**
- * pango_cairo_create_layout:
- * @cr: a Cairo context
- *
- * Creates a layout object set up to match the current transformation
- * and target surface of the Cairo context. This layout can then be
- * used for text measurement with functions like
- * pango_layout_get_size() or drawing with functions like
- * pango_cairo_show_layout(). If you change the transformation
- * or target surface for @cr, you need to call pango_cairo_update_layout()
- *
- * This function is the most convenient way to use Cairo with Pango,
- * however it is slightly inefficient since it creates a separate
- * #PangoContext object for each layout. This might matter in an
- * application that was laying out large amounts of text.
- *
- * Return value: the newly created #PangoLayout. Free with
- * g_object_unref().
- *
- * Since: 1.10
- **/
-PangoLayout *
-pango_cairo_create_layout (cairo_t *cr)
-{
- PangoFontMap *fontmap;
- PangoContext *context;
- PangoLayout *layout;
-
- g_return_val_if_fail (cr != NULL, NULL);
-
- fontmap = pango_cairo_font_map_get_default ();
- context = pango_cairo_font_map_create_context ((PangoCairoFontMap *) (fontmap));
- layout = pango_layout_new (context);
-
- pango_cairo_update_context (cr, context);
- g_object_unref (context);
-
- return layout;
-}
-
-/**
- * pango_cairo_update_layout:
- * @cr: a Cairo context
- * @layout: a #PangoLayout, from pango_cairo_create_layout()
- *
- * Updates the private #PangoContext of a #PangoLayout created with
- * pango_cairo_create_layout() to match the current transformation
- * and target surface of a Cairo context.
- *
- * Since: 1.10
- **/
-void
-pango_cairo_update_layout (cairo_t *cr,
- PangoLayout *layout)
-{
- g_return_if_fail (cr != NULL);
- g_return_if_fail (PANGO_IS_LAYOUT (layout));
-
- pango_cairo_update_context (cr, pango_layout_get_context (layout));
- pango_layout_context_changed (layout);
-}
-