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matcher: Use a vtable

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Now we can do lots of fancy matchers, yay!
This commit is contained in:
Benjamin Otte 2012-03-17 14:28:07 +01:00
parent a94b85d375
commit b368c5f10a
2 changed files with 149 additions and 60 deletions
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78
gtk/gtkcssmatcher.c
View File

@ -21,24 +21,14 @@
#include "gtkwidgetpath.h" #include "gtkwidgetpath.h"
void static gboolean
_gtk_css_matcher_init (GtkCssMatcher *matcher, gtk_css_matcher_widget_path_get_parent (GtkCssMatcher *matcher,
const GtkWidgetPath *path,
GtkStateFlags state)
{
matcher->path = path;
matcher->state_flags = state;
matcher->index = gtk_widget_path_length (path) - 1;
matcher->sibling_index = gtk_widget_path_iter_get_sibling_index (path, matcher->index);
}
gboolean
_gtk_css_matcher_get_parent (GtkCssMatcher *matcher,
const GtkCssMatcher *child) const GtkCssMatcher *child)
{ {
if (child->index == 0) if (child->index == 0)
return FALSE; return FALSE;
matcher->klass = child->klass;
matcher->path = child->path; matcher->path = child->path;
matcher->state_flags = 0; matcher->state_flags = 0;
matcher->index = child->index - 1; matcher->index = child->index - 1;
@ -47,13 +37,14 @@ _gtk_css_matcher_get_parent (GtkCssMatcher *matcher,
return TRUE; return TRUE;
} }
gboolean static gboolean
_gtk_css_matcher_get_previous (GtkCssMatcher *matcher, gtk_css_matcher_widget_path_get_previous (GtkCssMatcher *matcher,
const GtkCssMatcher *next) const GtkCssMatcher *next)
{ {
if (next->sibling_index == 0) if (next->sibling_index == 0)
return FALSE; return FALSE;
matcher->klass = next->klass;
matcher->path = next->path; matcher->path = next->path;
matcher->state_flags = 0; matcher->state_flags = 0;
matcher->index = next->index; matcher->index = next->index;
@ -62,14 +53,14 @@ _gtk_css_matcher_get_previous (GtkCssMatcher *matcher,
return TRUE; return TRUE;
} }
GtkStateFlags static GtkStateFlags
_gtk_css_matcher_get_state (const GtkCssMatcher *matcher) gtk_css_matcher_widget_path_get_state (const GtkCssMatcher *matcher)
{ {
return matcher->state_flags; return matcher->state_flags;
} }
gboolean static gboolean
_gtk_css_matcher_has_name (const GtkCssMatcher *matcher, gtk_css_matcher_widget_path_has_name (const GtkCssMatcher *matcher,
const char *name) const char *name)
{ {
const GtkWidgetPath *siblings; const GtkWidgetPath *siblings;
@ -83,8 +74,8 @@ _gtk_css_matcher_has_name (const GtkCssMatcher *matcher,
return g_type_is_a (gtk_widget_path_iter_get_object_type (matcher->path, matcher->index), type); return g_type_is_a (gtk_widget_path_iter_get_object_type (matcher->path, matcher->index), type);
} }
gboolean static gboolean
_gtk_css_matcher_has_class (const GtkCssMatcher *matcher, gtk_css_matcher_widget_path_has_class (const GtkCssMatcher *matcher,
const char *class_name) const char *class_name)
{ {
const GtkWidgetPath *siblings; const GtkWidgetPath *siblings;
@ -96,8 +87,8 @@ _gtk_css_matcher_has_class (const GtkCssMatcher *matcher,
return gtk_widget_path_iter_has_class (matcher->path, matcher->index, class_name); return gtk_widget_path_iter_has_class (matcher->path, matcher->index, class_name);
} }
gboolean static gboolean
_gtk_css_matcher_has_id (const GtkCssMatcher *matcher, gtk_css_matcher_widget_path_has_id (const GtkCssMatcher *matcher,
const char *id) const char *id)
{ {
const GtkWidgetPath *siblings; const GtkWidgetPath *siblings;
@ -109,8 +100,8 @@ _gtk_css_matcher_has_id (const GtkCssMatcher *matcher,
return gtk_widget_path_iter_has_name (matcher->path, matcher->index, id); return gtk_widget_path_iter_has_name (matcher->path, matcher->index, id);
} }
gboolean static gboolean
_gtk_css_matcher_has_regions (const GtkCssMatcher *matcher) gtk_css_matcher_widget_path_has_regions (const GtkCssMatcher *matcher)
{ {
const GtkWidgetPath *siblings; const GtkWidgetPath *siblings;
GSList *regions; GSList *regions;
@ -127,8 +118,8 @@ _gtk_css_matcher_has_regions (const GtkCssMatcher *matcher)
return result; return result;
} }
gboolean static gboolean
_gtk_css_matcher_has_region (const GtkCssMatcher *matcher, gtk_css_matcher_widget_path_has_region (const GtkCssMatcher *matcher,
const char *region, const char *region,
GtkRegionFlags flags) GtkRegionFlags flags)
{ {
@ -153,14 +144,14 @@ _gtk_css_matcher_has_region (const GtkCssMatcher *matcher,
return TRUE; return TRUE;
} }
guint static guint
_gtk_css_matcher_get_sibling_index (const GtkCssMatcher *matcher) gtk_css_matcher_widget_path_get_sibling_index (const GtkCssMatcher *matcher)
{ {
return matcher->sibling_index; return matcher->sibling_index;
} }
guint static guint
_gtk_css_matcher_get_n_siblings (const GtkCssMatcher *matcher) gtk_css_matcher_widget_path_get_n_siblings (const GtkCssMatcher *matcher)
{ {
const GtkWidgetPath *siblings; const GtkWidgetPath *siblings;
@ -171,3 +162,28 @@ _gtk_css_matcher_get_n_siblings (const GtkCssMatcher *matcher)
return gtk_widget_path_length (siblings); return gtk_widget_path_length (siblings);
} }
static const GtkCssMatcherClass GTK_CSS_MATCHER_WIDGET_PATH = {
gtk_css_matcher_widget_path_get_parent,
gtk_css_matcher_widget_path_get_previous,
gtk_css_matcher_widget_path_get_state,
gtk_css_matcher_widget_path_has_name,
gtk_css_matcher_widget_path_has_class,
gtk_css_matcher_widget_path_has_id,
gtk_css_matcher_widget_path_has_regions,
gtk_css_matcher_widget_path_has_region,
gtk_css_matcher_widget_path_get_sibling_index,
gtk_css_matcher_widget_path_get_n_siblings
};
void
_gtk_css_matcher_init (GtkCssMatcher *matcher,
const GtkWidgetPath *path,
GtkStateFlags state)
{
matcher->klass = &GTK_CSS_MATCHER_WIDGET_PATH;
matcher->path = path;
matcher->state_flags = state;
matcher->index = gtk_widget_path_length (path) - 1;
matcher->sibling_index = gtk_widget_path_iter_get_sibling_index (path, matcher->index);
}

107
gtk/gtkcssmatcherprivate.h
View File

@ -24,8 +24,31 @@
G_BEGIN_DECLS G_BEGIN_DECLS
typedef struct _GtkCssMatcher GtkCssMatcher; typedef struct _GtkCssMatcher GtkCssMatcher;
typedef struct _GtkCssMatcherClass GtkCssMatcherClass;
struct _GtkCssMatcherClass {
gboolean (* get_parent) (GtkCssMatcher *matcher,
const GtkCssMatcher *child);
gboolean (* get_previous) (GtkCssMatcher *matcher,
const GtkCssMatcher *next);
GtkStateFlags (* get_state) (const GtkCssMatcher *matcher);
gboolean (* has_name) (const GtkCssMatcher *matcher,
const char *name);
gboolean (* has_class) (const GtkCssMatcher *matcher,
const char *class_name);
gboolean (* has_id) (const GtkCssMatcher *matcher,
const char *id);
gboolean (* has_regions) (const GtkCssMatcher *matcher);
gboolean (* has_region) (const GtkCssMatcher *matcher,
const char *region,
GtkRegionFlags flags);
guint (* get_sibling_index) (const GtkCssMatcher *matcher);
guint (* get_n_siblings) (const GtkCssMatcher *matcher);
};
struct _GtkCssMatcher { struct _GtkCssMatcher {
const GtkCssMatcherClass *klass;
const GtkWidgetPath *path; const GtkWidgetPath *path;
GtkStateFlags state_flags; GtkStateFlags state_flags;
guint index; guint index;
@ -35,25 +58,75 @@ struct _GtkCssMatcher {
void _gtk_css_matcher_init (GtkCssMatcher *matcher, void _gtk_css_matcher_init (GtkCssMatcher *matcher,
const GtkWidgetPath *path, const GtkWidgetPath *path,
GtkStateFlags state); GtkStateFlags state);
gboolean _gtk_css_matcher_get_parent (GtkCssMatcher *matcher,
const GtkCssMatcher *child);
gboolean _gtk_css_matcher_get_previous (GtkCssMatcher *matcher,
const GtkCssMatcher *next);
GtkStateFlags _gtk_css_matcher_get_state (const GtkCssMatcher *matcher); static inline gboolean
gboolean _gtk_css_matcher_has_name (const GtkCssMatcher *matcher, _gtk_css_matcher_get_parent (GtkCssMatcher *matcher,
const char *name); const GtkCssMatcher *child)
gboolean _gtk_css_matcher_has_class (const GtkCssMatcher *matcher, {
const char *class_name); return child->klass->get_parent (matcher, child);
gboolean _gtk_css_matcher_has_id (const GtkCssMatcher *matcher, }
const char *id);
gboolean _gtk_css_matcher_has_regions (const GtkCssMatcher *matcher); static inline gboolean
gboolean _gtk_css_matcher_has_region (const GtkCssMatcher *matcher, _gtk_css_matcher_get_previous (GtkCssMatcher *matcher,
const GtkCssMatcher *next)
{
return next->klass->get_previous (matcher, next);
}
static inline GtkStateFlags
_gtk_css_matcher_get_state (const GtkCssMatcher *matcher)
{
return matcher->klass->get_state (matcher);
}
static inline gboolean
_gtk_css_matcher_has_name (const GtkCssMatcher *matcher,
const char *name)
{
return matcher->klass->has_name (matcher, name);
}
static inline gboolean
_gtk_css_matcher_has_class (const GtkCssMatcher *matcher,
const char *class_name)
{
return matcher->klass->has_class (matcher, class_name);
}
static inline gboolean
_gtk_css_matcher_has_id (const GtkCssMatcher *matcher,
const char *id)
{
return matcher->klass->has_id (matcher, id);
}
static inline gboolean
_gtk_css_matcher_has_regions (const GtkCssMatcher *matcher)
{
return matcher->klass->has_regions (matcher);
}
static inline gboolean
_gtk_css_matcher_has_region (const GtkCssMatcher *matcher,
const char *region, const char *region,
GtkRegionFlags flags); GtkRegionFlags flags)
guint _gtk_css_matcher_get_sibling_index {
(const GtkCssMatcher *matcher); return matcher->klass->has_region (matcher, region, flags);
guint _gtk_css_matcher_get_n_siblings (const GtkCssMatcher *matcher); }
static inline guint
_gtk_css_matcher_get_sibling_index (const GtkCssMatcher *matcher)
{
return matcher->klass->get_sibling_index (matcher);
}
static inline guint
_gtk_css_matcher_get_n_siblings (const GtkCssMatcher *matcher)
{
return matcher->klass->get_n_siblings (matcher);
}
G_END_DECLS G_END_DECLS