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Diffstat (limited to 'tools/glade/glade/styles.c')
| -rw-r--r-- | tools/glade/glade/styles.c | 208 |
1 files changed, 208 insertions, 0 deletions
diff --git a/tools/glade/glade/styles.c b/tools/glade/glade/styles.c new file mode 100644 index 00000000..4f74064f --- /dev/null +++ b/tools/glade/glade/styles.c @@ -0,0 +1,208 @@ +/* Gtk+ User Interface Builder + * Copyright (C) 1998 Damon Chaplin + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program 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 General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + */ + +#ifdef GLADE_STYLE_SUPPORT + +#include "gladeconfig.h" + +#include "glade_project.h" +#include "styles.h" +#include "gbwidget.h" + + +gchar *GbStateNames[] = +{"NORMAL", "ACTIVE", "PRELIGHT", + "SELECTED", "INSENSITIVE"}; +gchar *GbColorNames[] = +{"fg", "bg", "text", "base"}; +gchar *GbBgPixmapName = "bg_pixmap"; + +/* The style data hash stores named GbStyles with the name as the key. + Note that the GbStyle name field is also used as the key so be careful when + freeing or updating it. */ +GHashTable *gb_style_hash = NULL; + +/* The default style of created widgets. We need to use a separate default + style for the widgets created so that the Glade UI doesn't change. */ +GbStyle *gb_widget_default_gb_style; + + +struct GbUpdateStyleData + { + GbStyle *old_gbstyle; + GbStyle *new_gbstyle; + }; + +static void update_style (GtkWidget * component, + struct GbUpdateStyleData *data); + +/************************************************************************* + * Functions for creating/copying/destroying GbStyleData structs + *************************************************************************/ + +static void +reset_gb_styles_callback (gchar * key, GbStyle * gbstyle, gpointer data) +{ + gb_widget_destroy_gb_style (gbstyle, FALSE); +} + +void +gb_widget_reset_gb_styles () +{ + if (gb_style_hash) + { + g_hash_table_foreach (gb_style_hash, (GHFunc) reset_gb_styles_callback, + NULL); + g_hash_table_destroy (gb_style_hash); + } + + + /* Create new GbStyle hash */ + gb_style_hash = g_hash_table_new (g_str_hash, g_str_equal); + + /* Create default GbStyle */ + gb_widget_default_gb_style = gb_widget_new_gb_style (); + gb_widget_default_gb_style->name = g_strdup (GB_STYLE_DEFAULT); + gb_widget_default_gb_style->xlfd_fontname = g_strdup (GB_DEFAULT_XLFD_FONTNAME); + gb_widget_default_gb_style->style = gtk_widget_get_default_style (); + g_hash_table_insert (gb_style_hash, gb_widget_default_gb_style->name, + gb_widget_default_gb_style); +} + + +GbStyle * +gb_widget_new_gb_style () +{ + gint i; + GbStyle *gbstyle = g_new (GbStyle, 1); + gbstyle->name = NULL; + gbstyle->xlfd_fontname = NULL; + for (i = 0; i < GB_NUM_STYLE_STATES; i++) + { + gbstyle->bg_pixmap_filenames[i] = NULL; + } + gbstyle->style = NULL; + gbstyle->ref_count = 0; + return gbstyle; +} + + +GbStyle * +gb_widget_copy_gb_style (GbStyle * gbstyle) +{ + gint i; + GbStyle *gbstyle_copy = g_new (GbStyle, 1); + gbstyle_copy->name = g_strdup (gbstyle->name); + gbstyle_copy->xlfd_fontname = g_strdup (gbstyle->xlfd_fontname); + for (i = 0; i < GB_NUM_STYLE_STATES; i++) + { + gbstyle_copy->bg_pixmap_filenames[i] + = g_strdup (gbstyle->bg_pixmap_filenames[i]); + } + gbstyle_copy->style = gbstyle->style; + gtk_style_ref (gbstyle_copy->style); + gbstyle_copy->ref_count = 0; + return gbstyle_copy; +} + + +void +gb_widget_ref_gb_style (GbStyle * gbstyle) +{ + gbstyle->ref_count++; +} + + +void +gb_widget_unref_gb_style (GbStyle * gbstyle) +{ + gbstyle->ref_count--; + /* Don't destroy named GbStyles - let user do that explicitly. */ + if (gbstyle->ref_count <= 0 && gbstyle->name == NULL) + { + gb_widget_destroy_gb_style (gbstyle, TRUE); + } +} + + +void +gb_widget_destroy_gb_style (GbStyle * gbstyle, gboolean remove_from_hash) +{ + gint i; + + MSG1 ("Destroying gbstyle:%s", gbstyle->name); + + /* Remove the GbStyle from the hash */ + if (remove_from_hash && gbstyle->name) + g_hash_table_remove (gb_style_hash, gbstyle->name); + + /* Now free all the memory used */ + g_free (gbstyle->name); + g_free (gbstyle->xlfd_fontname); + for (i = 0; i < GB_NUM_STYLE_STATES; i++) + { + g_free (gbstyle->bg_pixmap_filenames[i]); + } + if (gbstyle->style) + gtk_style_unref (gbstyle->style); + g_free (gbstyle); +} + + + +/* This steps through all widgets in all components and updates the GbStyle + and GtkStyles as appropriate. */ +void +gb_widget_update_gb_styles (GbStyle * old_gbstyle, GbStyle * new_gbstyle) +{ + struct GbUpdateStyleData data; + data.old_gbstyle = old_gbstyle; + data.new_gbstyle = new_gbstyle; + glade_project_foreach_component (current_project, + (GtkCallback) update_style, &data); +} + + +static void +update_style (GtkWidget * widget, struct GbUpdateStyleData *data) +{ +#if 0 + GladeWidgetData *wdata; + + wdata = gtk_object_get_data (GTK_OBJECT (widget), GB_WIDGET_DATA_KEY); + + if (wdata && wdata->gbstyle == data->old_gbstyle) + { + wdata->gbstyle = data->new_gbstyle; + if (widget->style != wdata->gbstyle->style) + { + gtk_widget_set_style (widget, wdata->gbstyle->style); + gtk_widget_queue_resize (widget); + gtk_widget_queue_draw (widget); + } + } + if (GTK_IS_CONTAINER (widget)) + { + gtk_container_forall (GTK_CONTAINER (widget), (GtkCallback) update_style, + data); + } +#endif +} + + +#endif |