diff options
Diffstat (limited to 'src/ui/preview-widget.c')
| -rw-r--r-- | src/ui/preview-widget.c | 485 |
1 files changed, 0 insertions, 485 deletions
diff --git a/src/ui/preview-widget.c b/src/ui/preview-widget.c deleted file mode 100644 index bf377b44..00000000 --- a/src/ui/preview-widget.c +++ /dev/null @@ -1,485 +0,0 @@ -/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */ - -/* Metacity theme preview widget */ - -/* - * Copyright (C) 2002 Havoc Pennington - * - * 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, see <http://www.gnu.org/licenses/>. - */ - -#define _GNU_SOURCE -#define _XOPEN_SOURCE 600 /* for the maths routines over floats */ - -#include <math.h> -#include <gtk/gtk.h> -#include "common.h" /* for META_MINI_ICON_WIDTH */ -#include "preview-widget.h" - -static void meta_preview_get_preferred_width (GtkWidget *widget, - gint *minimum, - gint *natural); -static void meta_preview_get_preferred_height (GtkWidget *widget, - gint *minimum, - gint *natural); -static void meta_preview_size_allocate (GtkWidget *widget, - GtkAllocation *allocation); -static gboolean meta_preview_draw (GtkWidget *widget, - cairo_t *cr); -static void meta_preview_finalize (GObject *object); - -G_DEFINE_TYPE (MetaPreview, meta_preview, GTK_TYPE_BIN); - -static void -meta_preview_class_init (MetaPreviewClass *class) -{ - GObjectClass *gobject_class = G_OBJECT_CLASS (class); - GtkWidgetClass *widget_class; - - widget_class = (GtkWidgetClass*) class; - - gobject_class->finalize = meta_preview_finalize; - - widget_class->draw = meta_preview_draw; - widget_class->get_preferred_width = meta_preview_get_preferred_width; - widget_class->get_preferred_height = meta_preview_get_preferred_height; - widget_class->size_allocate = meta_preview_size_allocate; - - gtk_container_class_handle_border_width (GTK_CONTAINER_CLASS (class)); -} - -static void -meta_preview_init (MetaPreview *preview) -{ - int i; - - gtk_widget_set_has_window (GTK_WIDGET (preview), FALSE); - - i = 0; - while (i < META_BUTTON_FUNCTION_LAST) - { - preview->button_layout.left_buttons[i] = META_BUTTON_FUNCTION_LAST; - preview->button_layout.right_buttons[i] = META_BUTTON_FUNCTION_LAST; - ++i; - } - - preview->button_layout.left_buttons[0] = META_BUTTON_FUNCTION_MENU; - - preview->button_layout.right_buttons[0] = META_BUTTON_FUNCTION_MINIMIZE; - preview->button_layout.right_buttons[1] = META_BUTTON_FUNCTION_MAXIMIZE; - preview->button_layout.right_buttons[2] = META_BUTTON_FUNCTION_CLOSE; - - preview->type = META_FRAME_TYPE_NORMAL; - preview->flags = - META_FRAME_ALLOWS_DELETE | - META_FRAME_ALLOWS_MENU | - META_FRAME_ALLOWS_MINIMIZE | - META_FRAME_ALLOWS_MAXIMIZE | - META_FRAME_ALLOWS_VERTICAL_RESIZE | - META_FRAME_ALLOWS_HORIZONTAL_RESIZE | - META_FRAME_HAS_FOCUS | - META_FRAME_ALLOWS_SHADE | - META_FRAME_ALLOWS_MOVE; - - preview->borders_cached = FALSE; -} - -GtkWidget* -meta_preview_new (void) -{ - MetaPreview *preview; - - preview = g_object_new (META_TYPE_PREVIEW, NULL); - - return GTK_WIDGET (preview); -} - -static void -meta_preview_finalize (GObject *object) -{ - MetaPreview *preview; - - preview = META_PREVIEW (object); - - g_free (preview->title); - preview->title = NULL; - - G_OBJECT_CLASS (meta_preview_parent_class)->finalize (object); -} - -static void -ensure_info (MetaPreview *preview) -{ - GtkWidget *widget; - - widget = GTK_WIDGET (preview); - - if (preview->layout == NULL) - { - MetaStyleInfo *style_info; - PangoFontDescription *font_desc; - MetaFrameStyle *style; - PangoAttrList *attrs; - PangoAttribute *attr; - - preview->layout = gtk_widget_create_pango_layout (widget, - preview->title); - - style_info = meta_theme_get_style_info (preview->theme, NULL); - font_desc = meta_style_info_create_font_desc (preview->theme, style_info); - style = meta_theme_get_frame_style (preview->theme, preview->type, preview->flags); - meta_frame_style_apply_scale (style, font_desc); - - preview->text_height = - meta_pango_font_desc_get_text_height (font_desc, - gtk_widget_get_pango_context (widget)); - - attrs = pango_attr_list_new (); - - attr = pango_attr_size_new (pango_font_description_get_size (font_desc)); - attr->start_index = 0; - attr->end_index = G_MAXINT; - - pango_attr_list_insert (attrs, attr); - - pango_layout_set_attributes (preview->layout, attrs); - - pango_attr_list_unref (attrs); - - pango_font_description_free (font_desc); - } - - if (!preview->borders_cached) - { - if (preview->theme) - meta_theme_get_frame_borders (preview->theme, - NULL, /* theme variant */ - preview->type, - preview->text_height, - preview->flags, - &preview->borders); - else - meta_frame_borders_clear (&preview->borders); - preview->borders_cached = TRUE; - } -} - -static gboolean -meta_preview_draw (GtkWidget *widget, - cairo_t *cr) -{ - MetaPreview *preview; - GtkAllocation allocation; - int border_width; - int client_width; - int client_height; - MetaButtonState button_states[META_BUTTON_TYPE_LAST] = - { - META_BUTTON_STATE_NORMAL, - META_BUTTON_STATE_NORMAL, - META_BUTTON_STATE_NORMAL, - META_BUTTON_STATE_NORMAL - }; - - g_return_val_if_fail (META_IS_PREVIEW (widget), FALSE); - - preview = META_PREVIEW (widget); - - ensure_info (preview); - - cairo_save (cr); - - border_width = gtk_container_get_border_width (GTK_CONTAINER (widget)); - - gtk_widget_get_allocation (widget, &allocation); - client_width = allocation.width - preview->borders.total.left - preview->borders.total.right - border_width * 2; - client_height = allocation.height - preview->borders.total.top - preview->borders.total.bottom - border_width * 2; - - if (client_width < 0) - client_width = 1; - if (client_height < 0) - client_height = 1; - - if (preview->theme) - { - border_width = gtk_container_get_border_width (GTK_CONTAINER (widget)); - - meta_theme_draw_frame (preview->theme, - NULL, /* theme variant... */ - cr, - preview->type, - preview->flags, - client_width, client_height, - preview->layout, - preview->text_height, - &preview->button_layout, - button_states, - meta_preview_get_mini_icon (), - meta_preview_get_icon ()); - } - - cairo_restore (cr); - - /* draw child */ - return GTK_WIDGET_CLASS (meta_preview_parent_class)->draw (widget, cr); -} - -#define NO_CHILD_WIDTH 80 -#define NO_CHILD_HEIGHT 20 - -static void -meta_preview_get_preferred_width (GtkWidget *widget, - gint *minimum, - gint *natural) -{ - MetaPreview *preview; - int border_width; - GtkWidget *child; - - preview = META_PREVIEW (widget); - - ensure_info (preview); - - *minimum = *natural = preview->borders.total.left + preview->borders.total.right; - - child = gtk_bin_get_child (GTK_BIN (preview)); - if (child && gtk_widget_get_visible (child)) - { - gint child_min, child_nat; - - gtk_widget_get_preferred_width (child, &child_min, &child_nat); - - *minimum += child_min; - *natural += child_nat; - } - else - { - *minimum += NO_CHILD_WIDTH; - *natural += NO_CHILD_WIDTH; - } - - border_width = gtk_container_get_border_width (GTK_CONTAINER (widget)); - *minimum += border_width * 2; - *natural += border_width * 2; -} - -static void -meta_preview_get_preferred_height (GtkWidget *widget, - gint *minimum, - gint *natural) -{ - MetaPreview *preview; - int border_width; - GtkWidget *child; - - preview = META_PREVIEW (widget); - - ensure_info (preview); - - *minimum = *natural = preview->borders.total.top + preview->borders.total.bottom; - - child = gtk_bin_get_child (GTK_BIN (preview)); - if (child && gtk_widget_get_visible (child)) - { - gint child_min, child_nat; - - gtk_widget_get_preferred_height (child, &child_min, &child_nat); - - *minimum += child_min; - *natural += child_nat; - } - else - { - *minimum += NO_CHILD_HEIGHT; - *natural += NO_CHILD_HEIGHT; - } - - border_width = gtk_container_get_border_width (GTK_CONTAINER (widget)); - *minimum += border_width * 2; - *natural += border_width * 2; -} - -static void -meta_preview_size_allocate (GtkWidget *widget, - GtkAllocation *allocation) -{ - MetaPreview *preview; - int border_width; - GtkAllocation widget_allocation, child_allocation; - GtkWidget *child; - - preview = META_PREVIEW (widget); - - ensure_info (preview); - - gtk_widget_set_allocation (widget, allocation); - - border_width = gtk_container_get_border_width (GTK_CONTAINER (widget)); - - child = gtk_bin_get_child (GTK_BIN (widget)); - if (child && - gtk_widget_get_visible (child)) - { - gtk_widget_get_allocation (widget, &widget_allocation); - child_allocation.x = widget_allocation.x + border_width + preview->borders.total.left; - child_allocation.y = widget_allocation.y + border_width + preview->borders.total.top; - - child_allocation.width = MAX (1, widget_allocation.width - border_width * 2 - preview->borders.total.left - preview->borders.total.right); - child_allocation.height = MAX (1, widget_allocation.height - border_width * 2 - preview->borders.total.top - preview->borders.total.bottom); - - gtk_widget_size_allocate (gtk_bin_get_child (GTK_BIN (widget)), &child_allocation); - } -} - -static void -clear_cache (MetaPreview *preview) -{ - if (preview->layout) - { - g_object_unref (G_OBJECT (preview->layout)); - preview->layout = NULL; - } - - preview->borders_cached = FALSE; -} - -void -meta_preview_set_theme (MetaPreview *preview, - MetaTheme *theme) -{ - g_return_if_fail (META_IS_PREVIEW (preview)); - - preview->theme = theme; - - clear_cache (preview); - - gtk_widget_queue_resize (GTK_WIDGET (preview)); -} - -void -meta_preview_set_title (MetaPreview *preview, - const char *title) -{ - g_return_if_fail (META_IS_PREVIEW (preview)); - - g_free (preview->title); - preview->title = g_strdup (title); - - clear_cache (preview); - - gtk_widget_queue_resize (GTK_WIDGET (preview)); -} - -void -meta_preview_set_frame_type (MetaPreview *preview, - MetaFrameType type) -{ - g_return_if_fail (META_IS_PREVIEW (preview)); - - preview->type = type; - - clear_cache (preview); - - gtk_widget_queue_resize (GTK_WIDGET (preview)); -} - -void -meta_preview_set_frame_flags (MetaPreview *preview, - MetaFrameFlags flags) -{ - g_return_if_fail (META_IS_PREVIEW (preview)); - - preview->flags = flags; - - clear_cache (preview); - - gtk_widget_queue_resize (GTK_WIDGET (preview)); -} - -void -meta_preview_set_button_layout (MetaPreview *preview, - const MetaButtonLayout *button_layout) -{ - g_return_if_fail (META_IS_PREVIEW (preview)); - - preview->button_layout = *button_layout; - - gtk_widget_queue_draw (GTK_WIDGET (preview)); -} - -GdkPixbuf* -meta_preview_get_icon (void) -{ - static GdkPixbuf *default_icon = NULL; - - if (default_icon == NULL) - { - GtkIconTheme *theme; - gboolean icon_exists; - - theme = gtk_icon_theme_get_default (); - - icon_exists = gtk_icon_theme_has_icon (theme, META_DEFAULT_ICON_NAME); - - if (icon_exists) - default_icon = gtk_icon_theme_load_icon (theme, - META_DEFAULT_ICON_NAME, - META_ICON_WIDTH, - 0, - NULL); - else - default_icon = gtk_icon_theme_load_icon (theme, - "image-missing", - META_ICON_WIDTH, - 0, - NULL); - - g_assert (default_icon); - } - - return default_icon; -} - -GdkPixbuf* -meta_preview_get_mini_icon (void) -{ - static GdkPixbuf *default_icon = NULL; - - if (default_icon == NULL) - { - GtkIconTheme *theme; - gboolean icon_exists; - - theme = gtk_icon_theme_get_default (); - - icon_exists = gtk_icon_theme_has_icon (theme, META_DEFAULT_ICON_NAME); - - if (icon_exists) - default_icon = gtk_icon_theme_load_icon (theme, - META_DEFAULT_ICON_NAME, - META_MINI_ICON_WIDTH, - 0, - NULL); - else - default_icon = gtk_icon_theme_load_icon (theme, - "image-missing", - META_MINI_ICON_WIDTH, - 0, - NULL); - - g_assert (default_icon); - } - - return default_icon; -} |