diff options
Diffstat (limited to 'libslab/app-resizer.c')
| -rw-r--r-- | libslab/app-resizer.c | 321 |
1 files changed, 0 insertions, 321 deletions
diff --git a/libslab/app-resizer.c b/libslab/app-resizer.c deleted file mode 100644 index 0e1a15b8..00000000 --- a/libslab/app-resizer.c +++ /dev/null @@ -1,321 +0,0 @@ -/* - * This file is part of libslab. - * - * Copyright (c) 2006 Novell, Inc. - * - * Libslab is free software; you can redistribute it and/or modify it under the - * terms of the GNU Lesser General Public License as published by the Free - * Software Foundation; either version 2 of the License, or (at your option) - * any later version. - * - * Libslab 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 Lesser General Public License for - * more details. - * - * You should have received a copy of the GNU Lesser General Public License - * along with libslab; if not, write to the Free Software Foundation, Inc., 51 - * Franklin St, Fifth Floor, Boston, MA 02110-1301 USA - */ - -#include <gtk/gtk.h> - -#include "app-shell.h" -#include "app-resizer.h" - -static void app_resizer_size_allocate (GtkWidget * resizer, GtkAllocation * allocation); -static gboolean app_resizer_paint_window (GtkWidget * widget, cairo_t * cr, AppShellData * app_data); - -G_DEFINE_TYPE (AppResizer, app_resizer, GTK_TYPE_LAYOUT); - -static void -app_resizer_class_init (AppResizerClass * klass) -{ - GtkWidgetClass *widget_class; - - widget_class = GTK_WIDGET_CLASS (klass); - widget_class->size_allocate = app_resizer_size_allocate; -} - -static void -app_resizer_init (AppResizer * window) -{ - gtk_style_context_add_class (gtk_widget_get_style_context (GTK_WIDGET (window)), - GTK_STYLE_CLASS_VIEW); -} - -void -remove_container_entries (GtkContainer * widget) -{ - GList *children, *l; - - children = gtk_container_get_children (widget); - for (l = children; l; l = l->next) - { - GtkWidget *child = GTK_WIDGET (l->data); - gtk_container_remove (GTK_CONTAINER (widget), GTK_WIDGET (child)); - } - - if (children) - g_list_free (children); -} - -static void -resize_table (AppResizer *widget, GtkGrid * table, gint columns) -{ - remove_container_entries (GTK_CONTAINER (table)); - widget->column = columns; -} - -static void -relayout_table (AppResizer *widget, GtkGrid * table, GList * element_list) -{ - gint row = 0, col = 0; - do - { - GtkWidget *element = GTK_WIDGET (element_list->data); - gtk_grid_attach (table, element, col, row, 1, 1); - col++; - if (col == widget->column) - { - col = 0; - row++; - } - } - while (NULL != (element_list = g_list_next (element_list))); -} - -void -app_resizer_layout_table_default (AppResizer * widget, GtkGrid * table, GList * element_list) -{ - resize_table (widget, table, widget->cur_num_cols); - relayout_table (widget, table, element_list); -} - -static void -relayout_tables (AppResizer * widget, gint num_cols) -{ - GtkGrid *table; - GList *table_list, *launcher_list; - - for (table_list = widget->cached_tables_list; table_list != NULL; - table_list = g_list_next (table_list)) - { - table = GTK_GRID (table_list->data); - launcher_list = gtk_container_get_children (GTK_CONTAINER (table)); - launcher_list = g_list_reverse (launcher_list); /* Fixme - ugly hack because table stores prepend */ - resize_table (widget, table, num_cols); - relayout_table (widget, table, launcher_list); - g_list_free (launcher_list); - } -} - -static gint -calculate_num_cols (AppResizer * resizer, gint avail_width) -{ - if (resizer->table_elements_homogeneous) - { - gint num_cols; - - if (resizer->cached_element_width == -1) - { - GtkGrid *table = GTK_GRID (resizer->cached_tables_list->data); - GList *children = gtk_container_get_children (GTK_CONTAINER (table)); - GtkWidget *table_element = GTK_WIDGET (children->data); - gint natural_width; - g_list_free (children); - - gtk_widget_get_preferred_width (table_element, NULL, &natural_width); - resizer->cached_element_width = natural_width; - resizer->cached_table_spacing = gtk_grid_get_column_spacing (table); - } - - num_cols = - (avail_width + - resizer->cached_table_spacing) / (resizer->cached_element_width + - resizer->cached_table_spacing); - return num_cols; - } - else - g_assert_not_reached (); /* Fixme - implement... */ -} - -static gint -relayout_tables_if_needed (AppResizer * widget, gint avail_width, gint current_num_cols) -{ - gint num_cols = calculate_num_cols (widget, avail_width); - if (num_cols < 1) - { - num_cols = 1; /* just horiz scroll if avail_width is less than one column */ - } - - if (current_num_cols != num_cols) - { - relayout_tables (widget, num_cols); - current_num_cols = num_cols; - } - return current_num_cols; -} - -void -app_resizer_set_table_cache (AppResizer * widget, GList * cache_list) -{ - widget->cached_tables_list = cache_list; -} - -static void -app_resizer_size_allocate (GtkWidget * widget, GtkAllocation * allocation) -{ - AppResizer *resizer = APP_RESIZER (widget); - GtkWidget *child = GTK_WIDGET (APP_RESIZER (resizer)->child); - GtkAllocation widget_allocation; - GtkRequisition child_requisition; - - static gboolean first_time = TRUE; - gint new_num_cols; - - if (first_time) - { - /* we are letting the first show be the "natural" size of the child widget so do nothing. */ - if (GTK_WIDGET_CLASS (app_resizer_parent_class)->size_allocate) - (*GTK_WIDGET_CLASS (app_resizer_parent_class)->size_allocate) (widget, allocation); - - first_time = FALSE; - gtk_widget_get_allocation (child, &widget_allocation); - gtk_layout_set_size (GTK_LAYOUT (resizer), widget_allocation.width, - widget_allocation.height); - return; - } - - gtk_widget_get_preferred_size (child, &child_requisition, NULL); - - if (!resizer->cached_tables_list) /* if everthing is currently filtered out - just return */ - { - GtkAllocation child_allocation; - - if (GTK_WIDGET_CLASS (app_resizer_parent_class)->size_allocate) - (*GTK_WIDGET_CLASS (app_resizer_parent_class)->size_allocate) (widget, allocation); - - /* We want the message to center itself and only scroll if it's bigger than the available real size. */ - child_allocation.x = 0; - child_allocation.y = 0; - child_allocation.width = MAX (allocation->width, child_requisition.width); - child_allocation.height = MAX (allocation->height, child_requisition.height); - - gtk_widget_size_allocate (child, &child_allocation); - gtk_layout_set_size (GTK_LAYOUT (resizer), child_allocation.width, - child_allocation.height); - return; - } - GtkRequisition other_requisiton; - gtk_widget_get_preferred_size (GTK_WIDGET (resizer->cached_tables_list->data), &other_requisiton, NULL); - - new_num_cols = - relayout_tables_if_needed (APP_RESIZER (resizer), allocation->width, - resizer->cur_num_cols); - if (resizer->cur_num_cols != new_num_cols) - { - GtkRequisition req; - - /* Have to do this so that it requests, and thus gets allocated, new amount */ - gtk_widget_get_preferred_size (child, &req, NULL); - - resizer->cur_num_cols = new_num_cols; - } - - if (GTK_WIDGET_CLASS (app_resizer_parent_class)->size_allocate) - (*GTK_WIDGET_CLASS (app_resizer_parent_class)->size_allocate) (widget, allocation); - gtk_widget_get_allocation (child, &widget_allocation); - gtk_layout_set_size (GTK_LAYOUT (resizer), widget_allocation.width, - widget_allocation.height); -} - -GtkWidget * -app_resizer_new (GtkBox * child, gint initial_num_columns, gboolean homogeneous, - AppShellData * app_data) -{ - AppResizer *widget; - - g_assert (child != NULL); - - widget = g_object_new (APP_RESIZER_TYPE, NULL); - widget->cached_element_width = -1; - widget->cur_num_cols = initial_num_columns; - widget->table_elements_homogeneous = homogeneous; - widget->setting_style = FALSE; - widget->app_data = app_data; - - g_signal_connect (widget, "draw", - G_CALLBACK (app_resizer_paint_window), - app_data); - - gtk_container_add (GTK_CONTAINER (widget), GTK_WIDGET (child)); - widget->child = child; - - return GTK_WIDGET (widget); -} - -void -app_resizer_set_vadjustment_value (GtkWidget * widget, gdouble value) -{ - GtkAdjustment *adjust; - - adjust = gtk_scrollable_get_vadjustment (GTK_SCROLLABLE (widget)); - - gdouble upper = gtk_adjustment_get_upper (adjust); - gdouble page_size = gtk_adjustment_get_page_size (adjust); - if (value > upper - page_size) - { - value = upper - page_size; - } - gtk_adjustment_set_value (adjust, value); -} - -static gboolean -app_resizer_paint_window (GtkWidget * widget, cairo_t * cr, AppShellData * app_data) -{ - cairo_save(cr); - GtkStyleContext *context; - GdkRGBA *bg_rgba = NULL; - - GtkAllocation widget_allocation; - gtk_widget_get_allocation (widget, &widget_allocation); - - context = gtk_widget_get_style_context (widget); - gtk_style_context_get (context, - GTK_STATE_FLAG_NORMAL, - "background-color", &bg_rgba, - NULL); - - gdk_cairo_set_source_rgba (cr, bg_rgba); - cairo_set_line_width(cr, 1); - - cairo_rectangle(cr, widget_allocation.x, widget_allocation.y, widget_allocation.width, widget_allocation.height); - cairo_stroke_preserve(cr); - cairo_fill(cr); - - if (app_data->selected_group) - { - GtkWidget *selected_widget = GTK_WIDGET (app_data->selected_group); - GdkRGBA *rgba; - GtkAllocation selected_widget_allocation; - gtk_widget_get_allocation (selected_widget, &selected_widget_allocation); - - gtk_style_context_get (context, - GTK_STATE_FLAG_PRELIGHT, - "background-color", &rgba, - NULL); - - gdk_cairo_set_source_rgba (cr, rgba); - cairo_set_line_width(cr, 1); - cairo_rectangle(cr, selected_widget_allocation.x, selected_widget_allocation.y, selected_widget_allocation.width, selected_widget_allocation.height); - cairo_stroke_preserve(cr); - cairo_fill(cr); - gdk_rgba_free (rgba); - } - - cairo_restore(cr); - gdk_rgba_free (bg_rgba); - - return FALSE; -} |