49fe8f0399
2002-05-23 Jayaraj Rajappan <jayaraj.rajappan@wipro.com> * src/display.c (event_callback): fix for bugzilla bug #72314, filter out LeaveNotify caused by grabs when in mouse focus mode.
424 lines
12 KiB
C
424 lines
12 KiB
C
/* Metacity theme preview widget */
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/*
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* Copyright (C) 2002 Havoc Pennington
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
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* 02111-1307, USA.
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*/
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#include "preview-widget.h"
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static void meta_preview_class_init (MetaPreviewClass *klass);
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static void meta_preview_init (MetaPreview *preview);
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static void meta_preview_size_request (GtkWidget *widget,
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GtkRequisition *req);
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static void meta_preview_size_allocate (GtkWidget *widget,
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GtkAllocation *allocation);
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static gboolean meta_preview_expose (GtkWidget *widget,
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GdkEventExpose *event);
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static void meta_preview_finalize (GObject *object);
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static GtkWidgetClass *parent_class;
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GtkType
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meta_preview_get_type (void)
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{
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static GtkType preview_type = 0;
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if (!preview_type)
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{
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static const GtkTypeInfo preview_info =
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{
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"MetaPreview",
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sizeof (MetaPreview),
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sizeof (MetaPreviewClass),
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(GtkClassInitFunc) meta_preview_class_init,
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(GtkObjectInitFunc) meta_preview_init,
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/* reserved_1 */ NULL,
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/* reserved_2 */ NULL,
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(GtkClassInitFunc) NULL,
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};
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preview_type = gtk_type_unique (GTK_TYPE_BIN, &preview_info);
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}
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return preview_type;
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}
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static void
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meta_preview_class_init (MetaPreviewClass *class)
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{
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GObjectClass *gobject_class = G_OBJECT_CLASS (class);
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GtkObjectClass *object_class;
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GtkWidgetClass *widget_class;
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object_class = (GtkObjectClass*) class;
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widget_class = (GtkWidgetClass*) class;
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parent_class = gtk_type_class (GTK_TYPE_BIN);
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gobject_class->finalize = meta_preview_finalize;
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widget_class->expose_event = meta_preview_expose;
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widget_class->size_request = meta_preview_size_request;
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widget_class->size_allocate = meta_preview_size_allocate;
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}
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static void
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meta_preview_init (MetaPreview *preview)
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{
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GTK_WIDGET_SET_FLAGS (preview, GTK_NO_WINDOW);
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preview->type = META_FRAME_TYPE_NORMAL;
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preview->flags =
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META_FRAME_ALLOWS_DELETE |
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META_FRAME_ALLOWS_MENU |
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META_FRAME_ALLOWS_MINIMIZE |
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META_FRAME_ALLOWS_MAXIMIZE |
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META_FRAME_ALLOWS_VERTICAL_RESIZE |
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META_FRAME_ALLOWS_HORIZONTAL_RESIZE |
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META_FRAME_HAS_FOCUS |
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META_FRAME_ALLOWS_SHADE |
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META_FRAME_ALLOWS_MOVE;
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preview->left_width = -1;
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preview->right_width = -1;
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preview->top_height = -1;
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preview->bottom_height = -1;
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}
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GtkWidget*
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meta_preview_new (void)
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{
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MetaPreview *preview;
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preview = gtk_type_new (META_TYPE_PREVIEW);
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return GTK_WIDGET (preview);
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}
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static void
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meta_preview_finalize (GObject *object)
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{
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MetaPreview *preview;
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preview = META_PREVIEW (object);
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G_OBJECT_CLASS (parent_class)->finalize (object);
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}
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static void
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ensure_info (MetaPreview *preview)
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{
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GtkWidget *widget;
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widget = GTK_WIDGET (preview);
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if (preview->layout == NULL)
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{
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PangoFontDescription *font_desc;
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double scale;
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PangoAttrList *attrs;
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PangoAttribute *attr;
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if (preview->theme)
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scale = meta_theme_get_title_scale (preview->theme,
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preview->type,
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preview->flags);
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else
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scale = 1.0;
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preview->layout = gtk_widget_create_pango_layout (widget,
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preview->title);
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font_desc = meta_gtk_widget_get_font_desc (widget, scale, NULL);
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preview->text_height =
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meta_pango_font_desc_get_text_height (font_desc,
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gtk_widget_get_pango_context (widget));
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attrs = pango_attr_list_new ();
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attr = pango_attr_size_new (pango_font_description_get_size (font_desc));
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attr->start_index = 0;
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attr->end_index = G_MAXINT;
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pango_attr_list_insert (attrs, attr);
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pango_layout_set_attributes (preview->layout, attrs);
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pango_attr_list_unref (attrs);
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pango_font_description_free (font_desc);
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}
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if (preview->top_height < 0)
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{
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if (preview->theme)
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{
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meta_theme_get_frame_borders (preview->theme,
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preview->type,
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preview->text_height,
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preview->flags,
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&preview->top_height,
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&preview->bottom_height,
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&preview->left_width,
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&preview->right_width);
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}
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else
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{
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preview->top_height = 0;
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preview->bottom_height = 0;
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preview->left_width = 0;
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preview->right_width = 0;
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}
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}
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}
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static gboolean
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meta_preview_expose (GtkWidget *widget,
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GdkEventExpose *event)
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{
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MetaPreview *preview;
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int border_width;
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int client_width;
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int client_height;
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MetaButtonState button_states[META_BUTTON_TYPE_LAST] =
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{
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META_BUTTON_STATE_NORMAL,
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META_BUTTON_STATE_NORMAL,
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META_BUTTON_STATE_NORMAL,
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META_BUTTON_STATE_NORMAL
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};
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g_return_val_if_fail (META_IS_PREVIEW (widget), FALSE);
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g_return_val_if_fail (event != NULL, FALSE);
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preview = META_PREVIEW (widget);
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ensure_info (preview);
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border_width = GTK_CONTAINER (widget)->border_width;
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client_width = widget->allocation.width - preview->left_width - preview->right_width - border_width * 2;
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client_height = widget->allocation.height - preview->top_height - preview->bottom_height - border_width * 2;
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if (client_width < 0)
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client_width = 1;
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if (client_height < 0)
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client_height = 1;
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if (preview->theme)
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{
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border_width = GTK_CONTAINER (widget)->border_width;
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meta_theme_draw_frame (preview->theme,
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widget,
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widget->window,
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&event->area,
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widget->allocation.x + border_width,
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widget->allocation.y + border_width,
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preview->type,
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preview->flags,
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client_width, client_height,
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preview->layout,
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preview->text_height,
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button_states,
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meta_preview_get_mini_icon (),
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meta_preview_get_icon ());
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}
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/* draw child */
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return GTK_WIDGET_CLASS (parent_class)->expose_event (widget, event);
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}
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static void
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meta_preview_size_request (GtkWidget *widget,
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GtkRequisition *req)
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{
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MetaPreview *preview;
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preview = META_PREVIEW (widget);
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ensure_info (preview);
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req->width = preview->left_width + preview->right_width;
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req->height = preview->top_height + preview->bottom_height;
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if (GTK_BIN (preview)->child &&
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GTK_WIDGET_VISIBLE (GTK_BIN (preview)->child))
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{
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GtkRequisition child_requisition;
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gtk_widget_size_request (GTK_BIN (preview)->child, &child_requisition);
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req->width += child_requisition.width;
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req->height += child_requisition.height;
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}
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req->width += GTK_CONTAINER (widget)->border_width * 2;
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req->height += GTK_CONTAINER (widget)->border_width * 2;
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}
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static void
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meta_preview_size_allocate (GtkWidget *widget,
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GtkAllocation *allocation)
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{
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MetaPreview *preview;
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int border_width;
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GtkAllocation child_allocation;
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preview = META_PREVIEW (widget);
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ensure_info (preview);
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widget->allocation = *allocation;
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border_width = GTK_CONTAINER (widget)->border_width;
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if (GTK_BIN (widget)->child &&
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GTK_WIDGET_VISIBLE (GTK_BIN (widget)->child))
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{
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child_allocation.x = widget->allocation.x + border_width + preview->left_width;
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child_allocation.y = widget->allocation.y + border_width + preview->top_height;
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child_allocation.width = MAX (1, widget->allocation.width - border_width * 2 - preview->left_width - preview->right_width);
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child_allocation.height = MAX (1, widget->allocation.height - border_width * 2 - preview->top_height - preview->bottom_height);
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gtk_widget_size_allocate (GTK_BIN (widget)->child, &child_allocation);
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}
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}
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static void
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clear_cache (MetaPreview *preview)
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{
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if (preview->layout)
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{
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g_object_unref (G_OBJECT (preview->layout));
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preview->layout = NULL;
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}
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preview->left_width = -1;
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preview->right_width = -1;
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preview->top_height = -1;
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preview->bottom_height = -1;
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}
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void
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meta_preview_set_theme (MetaPreview *preview,
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MetaTheme *theme)
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{
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g_return_if_fail (META_IS_PREVIEW (preview));
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preview->theme = theme;
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clear_cache (preview);
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gtk_widget_queue_resize (GTK_WIDGET (preview));
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}
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void
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meta_preview_set_title (MetaPreview *preview,
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const char *title)
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{
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g_return_if_fail (META_IS_PREVIEW (preview));
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g_free (preview->title);
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preview->title = g_strdup (title);
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clear_cache (preview);
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gtk_widget_queue_resize (GTK_WIDGET (preview));
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}
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void
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meta_preview_set_frame_type (MetaPreview *preview,
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MetaFrameType type)
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{
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g_return_if_fail (META_IS_PREVIEW (preview));
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preview->type = type;
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clear_cache (preview);
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gtk_widget_queue_resize (GTK_WIDGET (preview));
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}
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void
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meta_preview_set_frame_flags (MetaPreview *preview,
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MetaFrameFlags flags)
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{
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g_return_if_fail (META_IS_PREVIEW (preview));
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preview->flags = flags;
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clear_cache (preview);
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gtk_widget_queue_resize (GTK_WIDGET (preview));
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}
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#include "inlinepixbufs.h"
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GdkPixbuf*
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meta_preview_get_icon (void)
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{
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static GdkPixbuf *default_icon = NULL;
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if (default_icon == NULL)
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{
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GdkPixbuf *base;
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base = gdk_pixbuf_new_from_inline (-1, default_icon_data,
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FALSE,
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NULL);
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g_assert (base);
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default_icon = gdk_pixbuf_scale_simple (base,
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META_ICON_WIDTH,
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META_ICON_HEIGHT,
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GDK_INTERP_BILINEAR);
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g_object_unref (G_OBJECT (base));
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}
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return default_icon;
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}
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GdkPixbuf*
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meta_preview_get_mini_icon (void)
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{
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static GdkPixbuf *default_icon = NULL;
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if (default_icon == NULL)
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{
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GdkPixbuf *base;
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base = gdk_pixbuf_new_from_inline (-1, default_icon_data,
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FALSE,
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NULL);
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g_assert (base);
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default_icon = gdk_pixbuf_scale_simple (base,
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META_MINI_ICON_WIDTH,
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META_MINI_ICON_HEIGHT,
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GDK_INTERP_BILINEAR);
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g_object_unref (G_OBJECT (base));
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}
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return default_icon;
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}
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