diff options
Diffstat (limited to 'widgets/shortcut-bar/e-group-bar.c')
| -rw-r--r-- | widgets/shortcut-bar/e-group-bar.c | 1496 |
1 files changed, 0 insertions, 1496 deletions
diff --git a/widgets/shortcut-bar/e-group-bar.c b/widgets/shortcut-bar/e-group-bar.c deleted file mode 100644 index de6c0cbbaf..0000000000 --- a/widgets/shortcut-bar/e-group-bar.c +++ /dev/null @@ -1,1496 +0,0 @@ -/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */ - -/* - * Author : - * Damon Chaplin <damon@helixcode.com> - * - * Copyright 1999, Helix Code, Inc. - * - * 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 - */ - -/* - * ShortcutBar displays a vertical bar with a number of Groups, each of which - * contains any number of icons. It is used on the left of the main application - * window so users can easily access items such as folders and files. - */ - -#include <math.h> - -#include <gnome.h> - -#include "e-group-bar.h" - -#define E_GROUP_BAR_SCROLL_TIMEOUT 10 -#define E_GROUP_BAR_MIN_STEP_SIZE 4 - -#define E_GROUP_BAR_AUTO_SHOW_TIMEOUT 300 - - -static void e_group_bar_class_init (EGroupBarClass *class); -static void e_group_bar_init (EGroupBar *group_bar); -static void e_group_bar_destroy (GtkObject *object); -static void e_group_bar_realize (GtkWidget *widget); -static void e_group_bar_unrealize (GtkWidget *widget); -static void e_group_bar_map (GtkWidget *widget); -static void e_group_bar_unmap (GtkWidget *widget); -static void e_group_bar_size_request (GtkWidget *widget, - GtkRequisition *requisition); -static void e_group_bar_size_allocate (GtkWidget *widget, - GtkAllocation *allocation); -static gint e_group_bar_expose (GtkWidget *widget, - GdkEventExpose *event); -static void e_group_bar_draw (GtkWidget *widget, - GdkRectangle *area); -static void e_group_bar_add (GtkContainer *container, - GtkWidget *widget); -static void e_group_bar_remove (GtkContainer *container, - GtkWidget *widget); -static void e_group_bar_forall (GtkContainer *container, - gboolean include_internals, - GtkCallback callback, - gpointer callback_data); - -static void e_group_bar_create_group_button_window (EGroupBar *group_bar, - gint group_num); -static void e_group_bar_create_group_child_window (EGroupBar *group_bar, - gint group_num); -static gint e_group_bar_get_group_button_position (EGroupBar *group_bar, - gint group_num); -static gint e_group_bar_sum_button_heights (EGroupBar *group_bar, - gint first, - gint last); -static gint e_group_bar_get_child_height (EGroupBar *group_bar); -static gint e_group_bar_get_group_child_position (EGroupBar *group_bar, - gint group_num); - -static void e_group_bar_on_button_clicked (GtkWidget *group_button, - EGroupBar *group_bar); -static gint e_group_bar_find_button (EGroupBar *group_bar, - GtkWidget *group_button); -static void e_group_bar_start_animation (EGroupBar *group_bar, - gint group_num); -static gboolean e_group_bar_timeout_handler (gpointer data); -static gint e_group_bar_get_increment (EGroupBar *group_bar, - gint window_y, - gint window_target_y); -static gboolean e_group_bar_on_button_drag_motion (GtkWidget *widget, - GdkDragContext *context, - gint x, - gint y, - guint time, - EGroupBar *group_bar); -static void e_group_bar_on_button_drag_leave (GtkWidget *widget, - GdkDragContext *context, - guint time, - EGroupBar *group_bar); -static gboolean e_group_bar_auto_show (gpointer data); -static void e_group_bar_stop_all_animation (EGroupBar *group_bar); - - -static GtkContainerClass *parent_class; - - -GtkType -e_group_bar_get_type (void) -{ - static GtkType e_group_bar_type = 0; - - if (!e_group_bar_type){ - GtkTypeInfo e_group_bar_info = { - "EGroupBar", - sizeof (EGroupBar), - sizeof (EGroupBarClass), - (GtkClassInitFunc) e_group_bar_class_init, - (GtkObjectInitFunc) e_group_bar_init, - NULL, /* reserved 1 */ - NULL, /* reserved 2 */ - (GtkClassInitFunc) NULL - }; - - parent_class = gtk_type_class (GTK_TYPE_CONTAINER); - e_group_bar_type = gtk_type_unique (GTK_TYPE_CONTAINER, - &e_group_bar_info); - } - - return e_group_bar_type; -} - - -static void -e_group_bar_class_init (EGroupBarClass *class) -{ - GtkObjectClass *object_class; - GtkWidgetClass *widget_class; - GtkContainerClass *container_class; - - object_class = (GtkObjectClass *) class; - widget_class = (GtkWidgetClass *) class; - container_class = (GtkContainerClass *) class; - - /* Method override */ - object_class->destroy = e_group_bar_destroy; - - widget_class->realize = e_group_bar_realize; - widget_class->unrealize = e_group_bar_unrealize; - widget_class->map = e_group_bar_map; - widget_class->unmap = e_group_bar_unmap; - widget_class->size_request = e_group_bar_size_request; - widget_class->size_allocate = e_group_bar_size_allocate; - widget_class->expose_event = e_group_bar_expose; - widget_class->draw = e_group_bar_draw; - - container_class->add = e_group_bar_add; - container_class->remove = e_group_bar_remove; - container_class->forall = e_group_bar_forall; -} - - -static void -e_group_bar_init (EGroupBar *group_bar) -{ - - GTK_WIDGET_UNSET_FLAGS (group_bar, GTK_NO_WINDOW); - - /* We don't want child resizes to propagate up to the parent. */ - gtk_container_set_resize_mode (GTK_CONTAINER (group_bar), - GTK_RESIZE_QUEUE); - - group_bar->children = g_array_new (FALSE, FALSE, - sizeof (EGroupBarChild)); - - group_bar->current_group_num = -1; - group_bar->buttons_homogeneous = TRUE; - group_bar->max_button_height = 0; - group_bar->animation_timeout_id = 0; -} - - -/** - * e_group_bar_new: - * @Returns: a new #EGroupBar. - * - * Creates a new #EGroupBar. - **/ -GtkWidget * -e_group_bar_new (void) -{ - GtkWidget *group_bar; - - group_bar = GTK_WIDGET (gtk_type_new (e_group_bar_get_type ())); - - return group_bar; -} - - -static void -e_group_bar_destroy (GtkObject *object) -{ - EGroupBar *group_bar; - - group_bar = E_GROUP_BAR (object); - - e_group_bar_stop_all_animation (group_bar); - - /* The parent GtkContainer class will automatically destroy all the - child widgets, but it calls gtk_container_foreach() so we must not - destroy our children array until after. */ - GTK_OBJECT_CLASS (parent_class)->destroy (object); - - g_array_free (group_bar->children, TRUE); -} - - -static void -e_group_bar_realize (GtkWidget *widget) -{ - EGroupBar *group_bar; - EGroupBarChild *group; - GdkWindowAttr attributes; - gint attributes_mask; - gint border_width, group_num; - - g_return_if_fail (widget != NULL); - g_return_if_fail (E_IS_GROUP_BAR (widget)); - - group_bar = E_GROUP_BAR (widget); - GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED); - - border_width = GTK_CONTAINER (group_bar)->border_width; - - attributes.window_type = GDK_WINDOW_CHILD; - attributes.x = widget->allocation.x + border_width; - attributes.y = widget->allocation.y + border_width; - attributes.width = widget->allocation.width - 2 * border_width; - attributes.height = widget->allocation.height - 2 * border_width; - attributes.wclass = GDK_INPUT_OUTPUT; - attributes.visual = gtk_widget_get_visual (widget); - attributes.colormap = gtk_widget_get_colormap (widget); - attributes.event_mask = gtk_widget_get_events (widget); - attributes.event_mask |= (GDK_EXPOSURE_MASK); - - attributes_mask = GDK_WA_X | GDK_WA_Y - | GDK_WA_VISUAL | GDK_WA_COLORMAP; - - widget->window = gdk_window_new (gtk_widget_get_parent_window (widget), - &attributes, attributes_mask); - gdk_window_set_user_data (widget->window, widget); - - widget->style = gtk_style_attach (widget->style, widget->window); - gtk_style_set_background (widget->style, widget->window, - GTK_STATE_NORMAL); - - gdk_window_set_back_pixmap (widget->window, NULL, TRUE); - - /* Create windows for all the buttons & group canvases. */ - for (group_num = 0; - group_num < group_bar->children->len; - group_num++) { - group = &g_array_index (group_bar->children, - EGroupBarChild, group_num); - e_group_bar_create_group_button_window (group_bar, group_num); - e_group_bar_create_group_child_window (group_bar, group_num); - } -} - - -static void -e_group_bar_unrealize (GtkWidget *widget) -{ - EGroupBar *group_bar; - EGroupBarChild *group; - gint group_num; - - g_return_if_fail (widget != NULL); - g_return_if_fail (E_IS_GROUP_BAR (widget)); - - group_bar = E_GROUP_BAR (widget); - - /* Destroy the windows for all the buttons & group canvases. */ - for (group_num = 0; - group_num < group_bar->children->len; - group_num++) { - group = &g_array_index (group_bar->children, - EGroupBarChild, group_num); - - if (group->button_window) { - gdk_window_set_user_data (group->button_window, NULL); - gdk_window_destroy (group->button_window); - group->button_window = NULL; - } - if (group->child_window) { - gdk_window_set_user_data (group->child_window, NULL); - gdk_window_destroy (group->child_window); - group->child_window = NULL; - } - } - - if (GTK_WIDGET_CLASS (parent_class)->unrealize) - (* GTK_WIDGET_CLASS (parent_class)->unrealize) (widget); -} - - -static void -e_group_bar_map (GtkWidget *widget) -{ - EGroupBar *group_bar; - EGroupBarChild *group; - gint group_num; - - g_return_if_fail (widget != NULL); - g_return_if_fail (E_IS_GROUP_BAR (widget)); - - group_bar = E_GROUP_BAR (widget); - - GTK_WIDGET_SET_FLAGS (widget, GTK_MAPPED); - - /* We do this in reverse order, and lower all the child windows, so - the stacking order ends up correct. */ - for (group_num = group_bar->children->len - 1; - group_num >= 0; - group_num--) { - group = &g_array_index (group_bar->children, - EGroupBarChild, group_num); - - if (group->button_window) { - gdk_window_show (group->button_window); - } - - if (group->button - && GTK_WIDGET_VISIBLE (group->button) - && !GTK_WIDGET_MAPPED (group->button)) { - gtk_widget_map (group->button); - } - - if (group->child_window) { - gdk_window_show (group->child_window); - gdk_window_lower (group->child_window); - } - - if (group->child - && GTK_WIDGET_VISIBLE (group->child) - && !GTK_WIDGET_MAPPED (group->child)) - gtk_widget_map (group->child); - } - - gdk_window_show (widget->window); -} - - -static void -e_group_bar_unmap (GtkWidget *widget) -{ - EGroupBar *group_bar; - EGroupBarChild *group; - gint group_num; - - g_return_if_fail (widget != NULL); - g_return_if_fail (E_IS_GROUP_BAR (widget)); - - group_bar = E_GROUP_BAR (widget); - - GTK_WIDGET_UNSET_FLAGS (widget, GTK_MAPPED); - - for (group_num = 0; - group_num < group_bar->children->len; - group_num++) { - group = &g_array_index (group_bar->children, - EGroupBarChild, group_num); - - if (group->button_window) { - gdk_window_hide (group->button_window); - } - - if (group->button - && GTK_WIDGET_MAPPED (group->button)) - gtk_widget_unmap (group->button); - - if (group->child_window) { - gdk_window_hide (group->child_window); - } - - if (group->child - && GTK_WIDGET_MAPPED (group->child)) - gtk_widget_unmap (group->child); - } - - gdk_window_hide (widget->window); -} - - -static void -e_group_bar_size_request (GtkWidget *widget, - GtkRequisition *requisition) -{ - EGroupBar *group_bar; - EGroupBarChild *group; - gint group_num, max_child_height; - GtkRequisition child_requisition; - - g_return_if_fail (widget != NULL); - g_return_if_fail (E_IS_GROUP_BAR (widget)); - g_return_if_fail (requisition != NULL); - - group_bar = E_GROUP_BAR (widget); - - /* We set the requisition width to the largest requested width of the - child widgets. The requisition height is set to the sum of all the - button heights plus the height of the largest child. */ - requisition->width = 0; - requisition->height = 0; - - /* We have to call size_request on all children, even though we don't - use the results, since some widgets like GtkLabel depend on it. */ - group_bar->max_button_height = 0; - max_child_height = 0; - for (group_num = 0; - group_num < group_bar->children->len; - group_num++) { - group = &g_array_index (group_bar->children, - EGroupBarChild, group_num); - - if (group->button) { - gtk_widget_size_request (group->button, - &child_requisition); - group->button_height = child_requisition.height; - } else { - group->button_height = 0; - } - - group_bar->max_button_height = MAX (group_bar->max_button_height, group->button_height); - requisition->height += child_requisition.height; - - if (group->child) { - gtk_widget_size_request (group->child, - &child_requisition); - max_child_height = MAX (max_child_height, - child_requisition.height); - requisition->width = MAX (requisition->width, - child_requisition.width); - } - } - - requisition->height += max_child_height; - - /* Add on the standard container border widths. */ - requisition->width += GTK_CONTAINER (widget)->border_width * 2; - requisition->height += GTK_CONTAINER (widget)->border_width * 2; -} - - -static void -e_group_bar_size_allocate (GtkWidget *widget, GtkAllocation *allocation) -{ - EGroupBar *group_bar; - EGroupBarChild *group; - gint group_num, border_width, width, height, child_height, y; - GtkAllocation button_allocation, child_allocation; - - group_bar = E_GROUP_BAR (widget); - - /* All child & button windows and widgets use the same width as the - group bar minus the border width. */ - border_width = GTK_CONTAINER (widget)->border_width; - width = allocation->width - border_width * 2; - height = allocation->height - border_width * 2; - - widget->allocation = *allocation; - if (GTK_WIDGET_REALIZED (widget)) - gdk_window_move_resize (widget->window, - allocation->x + border_width, - allocation->y + border_width, - width, height); - - /* All the child widgets use the same height. */ - child_height = e_group_bar_get_child_height (group_bar); - - /* The buttons are always in the top-left of the button windows, and - all have the same width. The height is calculated for each group. */ - button_allocation.x = 0; - button_allocation.y = 0; - button_allocation.width = width; - - /* The child widgets are always in the top-left of the child windows, - and all have the same width and height. */ - child_allocation.x = 0; - child_allocation.y = 0; - child_allocation.width = width; - child_allocation.height = child_height; - - /* Step through the groups, placing the windows as necessary, and - allocating the areas for the child widgets. Note that if a button - or child window is in the middle of an animation, we just resize it - and update the target position, and let the animation continue. */ - for (group_num = 0; - group_num < group_bar->children->len; - group_num++) { - group = &g_array_index (group_bar->children, - EGroupBarChild, group_num); - - /* Calculate the y position of the button, which depends on - the currently selected group and the button heights. */ - y = e_group_bar_get_group_button_position (group_bar, group_num); - button_allocation.height = group_bar->buttons_homogeneous ? group_bar->max_button_height : group->button_height; - - if (GTK_WIDGET_REALIZED (group->button)) { - if (group->button_window_in_animation) { - gdk_window_resize (group->button_window, - width, button_allocation.height); - group->button_window_target_y = y; - } else { - gdk_window_move_resize (group->button_window, - 0, y, width, button_allocation.height); - } - } - gtk_widget_size_allocate (group->button, &button_allocation); - - if (GTK_WIDGET_REALIZED (group->child)) { - if (group->child_window_in_animation) { - gdk_window_resize (group->child_window, - width, child_height); - group->child_window_target_y = y + button_allocation.height; - } else { - gdk_window_move_resize (group->child_window, - 0, y + button_allocation.height, - width, child_height); - } - } - gtk_widget_size_allocate (group->child, &child_allocation); - } -} - - -static gint -e_group_bar_expose (GtkWidget *widget, - GdkEventExpose *event) -{ - EGroupBar *group_bar; - EGroupBarChild *group; - GdkEventExpose child_event; - gint group_num; - - g_return_val_if_fail (widget != NULL, FALSE); - g_return_val_if_fail (E_IS_GROUP_BAR (widget), FALSE); - g_return_val_if_fail (event != NULL, FALSE); - - if (GTK_WIDGET_DRAWABLE (widget)) { - group_bar = E_GROUP_BAR (widget); - - child_event = *event; - - for (group_num = 0; - group_num < group_bar->children->len; - group_num++) { - group = &g_array_index (group_bar->children, - EGroupBarChild, group_num); - - if (event->window == group->button_window - && GTK_WIDGET_DRAWABLE (group->button) - && GTK_WIDGET_NO_WINDOW (group->button) - && gtk_widget_intersect (group->button, &event->area, &child_event.area)) - gtk_widget_event (group->button, (GdkEvent*) &child_event); - - if (event->window == group->child_window - && GTK_WIDGET_DRAWABLE (group->child) - && GTK_WIDGET_NO_WINDOW (group->child) - && gtk_widget_intersect (group->child, &event->area, &child_event.area)) - gtk_widget_event (group->child, (GdkEvent*) &child_event); - } - } - - return FALSE; -} - - -static void -e_group_bar_draw (GtkWidget *widget, - GdkRectangle *area) -{ - EGroupBar *group_bar; - EGroupBarChild *group; - gint group_num; - GdkRectangle child_area; - - g_return_if_fail (widget != NULL); - g_return_if_fail (E_IS_GROUP_BAR (widget)); - - if (GTK_WIDGET_DRAWABLE (widget)) { - group_bar = E_GROUP_BAR (widget); - - for (group_num = 0; - group_num < group_bar->children->len; - group_num++) { - group = &g_array_index (group_bar->children, - EGroupBarChild, group_num); - - if (GTK_WIDGET_DRAWABLE (group->button) - && gtk_widget_intersect (group->button, area, &child_area)) - gtk_widget_draw (group->button, &child_area); - - if (GTK_WIDGET_DRAWABLE (group->child) - && gtk_widget_intersect (group->child, area, &child_area)) - gtk_widget_draw (group->child, &child_area); - } - } -} - - -static void -e_group_bar_add (GtkContainer *container, - GtkWidget *widget) -{ - EGroupBar *group_bar; - GtkWidget *button; - gchar buffer[32]; - - g_return_if_fail (container != NULL); - g_return_if_fail (E_IS_GROUP_BAR (container)); - g_return_if_fail (widget != NULL); - - g_snprintf (buffer, sizeof (buffer), _("Group %i"), - group_bar->children->len + 1); - button = gtk_button_new_with_label (buffer); - gtk_widget_show (button); - - e_group_bar_add_group (group_bar, widget, button, -1); -} - - -static void -e_group_bar_remove (GtkContainer *container, - GtkWidget *widget) -{ - EGroupBar *group_bar; - gint group_num; - - g_return_if_fail (container != NULL); - g_return_if_fail (E_IS_GROUP_BAR (container)); - g_return_if_fail (widget != NULL); - - group_bar = E_GROUP_BAR (container); - - group_num = e_group_bar_get_group_num (group_bar, widget); - e_group_bar_remove_group (group_bar, group_num); -} - - -static void -e_group_bar_forall (GtkContainer *container, - gboolean include_internals, - GtkCallback callback, - gpointer callback_data) -{ - EGroupBar *group_bar; - EGroupBarChild *group; - gint group_num; - GList *tmp_list; - - g_return_if_fail (container != NULL); - g_return_if_fail (E_IS_GROUP_BAR (container)); - g_return_if_fail (callback != NULL); - - group_bar = E_GROUP_BAR (container); - - /* Note that drag-and-drop does not check the Z-order of widgets, so - we have to iterate through them from top to bottom, or it will - not work properly. We also have to use temporary lists so widgets - can be safely destroyed while iterating. */ - - if (include_internals) { - tmp_list = NULL; - for (group_num = group_bar->children->len - 1; - group_num >= 0; - group_num--) { - group = &g_array_index (group_bar->children, - EGroupBarChild, group_num); - - if (group->button) - tmp_list = g_list_prepend (tmp_list, - group->button); - } - - g_list_foreach (tmp_list, (GFunc) callback, callback_data); - g_list_free (tmp_list); - } - - tmp_list = NULL; - for (group_num = 0; - group_num < group_bar->children->len; - group_num++) { - group = &g_array_index (group_bar->children, - EGroupBarChild, group_num); - - if (group->child) - tmp_list = g_list_prepend (tmp_list, group->child); - } - g_list_foreach (tmp_list, (GFunc) callback, callback_data); - g_list_free (tmp_list); -} - - -static void -e_group_bar_create_group_button_window (EGroupBar *group_bar, - gint group_num) -{ - EGroupBarChild *group; - GtkWidget *widget; - GdkWindowAttr attributes; - gint attributes_mask; - gint y, height, border_width; - - widget = GTK_WIDGET (group_bar); - - group = &g_array_index (group_bar->children, - EGroupBarChild, group_num); - y = e_group_bar_get_group_button_position (group_bar, group_num); - height = group_bar->buttons_homogeneous ? group_bar->max_button_height - : group->button_height; - border_width = GTK_CONTAINER (group_bar)->border_width; - - attributes.window_type = GDK_WINDOW_CHILD; - attributes.x = 0; - attributes.y = y; - attributes.width = widget->allocation.width - 2 * border_width; - attributes.height = height; - attributes.wclass = GDK_INPUT_OUTPUT; - attributes.visual = gtk_widget_get_visual (widget); - attributes.colormap = gtk_widget_get_colormap (widget); - attributes.event_mask = gtk_widget_get_events (widget); - attributes.event_mask |= (GDK_EXPOSURE_MASK); - - attributes_mask = GDK_WA_X | GDK_WA_Y - | GDK_WA_VISUAL | GDK_WA_COLORMAP; - - group->button_window = gdk_window_new (widget->window, &attributes, - attributes_mask); - gdk_window_set_user_data (group->button_window, widget); - - gtk_widget_set_parent_window (group->button, - group->button_window); - gdk_window_set_back_pixmap (group->button_window, NULL, TRUE); -} - - -static void -e_group_bar_create_group_child_window (EGroupBar *group_bar, - gint group_num) -{ - EGroupBarChild *group; - GtkWidget *widget; - GdkWindowAttr attributes; - gint attributes_mask; - gint y, height, border_width; - - widget = GTK_WIDGET (group_bar); - - group = &g_array_index (group_bar->children, - EGroupBarChild, group_num); - y = e_group_bar_get_group_button_position (group_bar, group_num); - y += group_bar->buttons_homogeneous ? group_bar->max_button_height - : group->button_height; - height = e_group_bar_get_child_height (group_bar); - border_width = GTK_CONTAINER (group_bar)->border_width; - - attributes.window_type = GDK_WINDOW_CHILD; - attributes.x = 0; - attributes.y = y; - attributes.width = widget->allocation.width - 2 * border_width; - attributes.height = height; - attributes.wclass = GDK_INPUT_OUTPUT; - attributes.visual = gtk_widget_get_visual (widget); - attributes.colormap = gtk_widget_get_colormap (widget); - attributes.event_mask = gtk_widget_get_events (widget); - attributes.event_mask |= (GDK_EXPOSURE_MASK); - - attributes_mask = GDK_WA_X | GDK_WA_Y - | GDK_WA_VISUAL | GDK_WA_COLORMAP; - - group->child_window = gdk_window_new (widget->window, &attributes, - attributes_mask); - gdk_window_set_user_data (group->child_window, widget); - - gtk_widget_set_parent_window (GTK_WIDGET (group->child), - group->child_window); - gdk_window_set_back_pixmap (group->child_window, NULL, TRUE); -} - - -/* This returns the y position of a group's button within the EGroupBar window. - */ -static gint -e_group_bar_get_group_button_position (EGroupBar *group_bar, - gint group_num) -{ - gint border_width, window_height, y; - - border_width = GTK_CONTAINER (group_bar)->border_width; - window_height = GTK_WIDGET (group_bar)->allocation.height - 2 * border_width; - - if (group_num <= group_bar->current_group_num) - y = e_group_bar_sum_button_heights (group_bar, 0, group_num - 1); - else - y = window_height - e_group_bar_sum_button_heights (group_bar, group_num, group_bar->children->len - 1); - - return y; -} - - -/* This returns the sum of all the buttons from first to last inclusive. */ -static gint -e_group_bar_sum_button_heights (EGroupBar *group_bar, gint first, gint last) -{ - EGroupBarChild *group; - gint height, group_num; - - height = 0; - - if (group_bar->buttons_homogeneous) - return (last - first + 1) * group_bar->max_button_height; - - for (group_num = first; group_num <= last; group_num++) { - group = &g_array_index (group_bar->children, - EGroupBarChild, group_num); - height += group->button_height; - } - - return height; -} - - -static gint -e_group_bar_get_group_child_position (EGroupBar *group_bar, - gint group_num) -{ - EGroupBarChild *group; - gint y; - - y = e_group_bar_get_group_button_position (group_bar, group_num); - group = &g_array_index (group_bar->children, - EGroupBarChild, group_num); - y += group_bar->buttons_homogeneous ? group_bar->max_button_height - : group->button_height; - - return y; -} - - -static gint -e_group_bar_get_child_height (EGroupBar *group_bar) -{ - EGroupBarChild *group; - gint group_num; - - /* Start with the allocated height of the EGroupBar, less the border.*/ - group_bar->child_height = GTK_WIDGET (group_bar)->allocation.height; - group_bar->child_height -= 2 * GTK_CONTAINER (group_bar)->border_width; - - /* Now subtract the heights of all the buttons. */ - if (group_bar->buttons_homogeneous) { - group_bar->child_height -= group_bar->children->len * group_bar->max_button_height; - } else { - for (group_num = 0; - group_num < group_bar->children->len; - group_num++) { - group = &g_array_index (group_bar->children, - EGroupBarChild, group_num); - group_bar->child_height -= group->button_height; - } - } - - return group_bar->child_height; -} - - -/* - * Insertion, reordering and deletion of items. - */ - -/** - * e_group_bar_add_group: - * @group_bar: an #EGroupBar. - * @child: the child widget to add. - * @button: the button used to show the child widget. - * @position: the new group's position, or -1 to place it last. - * @Returns: the position of the new group. - * - * Adds a new group to a #EGroupBar at the given position. - **/ -gint -e_group_bar_add_group (EGroupBar *group_bar, - GtkWidget *child, - GtkWidget *button, - gint position) -{ - EGroupBarChild *group, empty_group, *tmp_group; - gint group_num, tmp_group_num; - - g_return_val_if_fail (group_bar != NULL, -1); - g_return_val_if_fail (E_IS_GROUP_BAR (group_bar), -1); - g_return_val_if_fail (child != NULL, -1); - g_return_val_if_fail (button != NULL, -1); - g_return_val_if_fail (GTK_IS_BUTTON (button), -1); - - /* Append an empty group to the children array and get a pointer to - it, so we can use it like a normal group. */ - group_num = group_bar->children->len; - g_array_append_val (group_bar->children, empty_group); - group = &g_array_index (group_bar->children, - EGroupBarChild, group_num); - - /* Initialize the group. */ - group->button = button; - group->button_window = NULL; - group->child = child; - group->child_window = NULL; - group->button_window_in_animation = FALSE; - group->child_window_in_animation = FALSE; - group->button_window_target_y = 0; - group->child_window_target_y = 0; - - /* If we don't have a current group, set it to the first one. */ - if (group_bar->current_group_num == -1) - group_bar->current_group_num = 0; - - /* If the EGroupBar widget is realize, we need to create the child - windows to put the button & child in. */ - if (GTK_WIDGET_REALIZED (group_bar)) { - e_group_bar_create_group_button_window (group_bar, group_num); - e_group_bar_create_group_child_window (group_bar, group_num); - - /* We need to lower all the child windows of the previous - groups, in reverse order, to keep the stacking order - correct. */ - for (tmp_group_num = group_num - 1; - tmp_group_num >= 0; - tmp_group_num--) { - tmp_group = &g_array_index (group_bar->children, - EGroupBarChild, - tmp_group_num); - gdk_window_lower (group->child_window); - } - } - - gtk_widget_set_parent (group->button, GTK_WIDGET (group_bar)); - gtk_widget_set_parent (group->child, GTK_WIDGET (group_bar)); - - if (GTK_WIDGET_REALIZED (group_bar)) { - gtk_widget_realize (group->button); - gtk_widget_realize (group->child); - } - - if (GTK_WIDGET_VISIBLE (group_bar) - && GTK_WIDGET_MAPPED (group_bar)) { - if (group->button - && GTK_WIDGET_VISIBLE (group->button) - && !GTK_WIDGET_MAPPED (group->button)) { - gtk_widget_map (group->button); - gtk_widget_queue_resize (group->button); - } - if (group->child - && GTK_WIDGET_VISIBLE (group->child) - && !GTK_WIDGET_MAPPED (group->child)) { - gtk_widget_map (group->child); - gtk_widget_queue_resize (group->child); - } - } - - gtk_signal_connect (GTK_OBJECT (group->button), "clicked", - GTK_SIGNAL_FUNC (e_group_bar_on_button_clicked), - group_bar); - - gtk_signal_connect (GTK_OBJECT (group->button), "drag_motion", - GTK_SIGNAL_FUNC (e_group_bar_on_button_drag_motion), - group_bar); - gtk_signal_connect (GTK_OBJECT (group->button), "drag_leave", - GTK_SIGNAL_FUNC (e_group_bar_on_button_drag_leave), - group_bar); - - return group_num; -} - - -/** - * e_group_bar_reorder_group: - * @group_bar: an #EGroupBar. - * @group_num: the index of the group to move. - * @new_position: the new position of the group. - * - * Moves a group to a new position within the #EGroupBar. - **/ -void -e_group_bar_reorder_group (EGroupBar *group_bar, - gint group_num, - gint new_position) -{ - g_return_if_fail (E_IS_GROUP_BAR (group_bar)); - -} - - -/** - * e_group_bar_remove_group: - * @group_bar: an #EGroupBar. - * @group_num: the index of the group to remove. - * - * Removes a group from an #EGroupBar. - **/ -void -e_group_bar_remove_group (EGroupBar *group_bar, - gint group_num) -{ - EGroupBarChild *group; - - g_return_if_fail (E_IS_GROUP_BAR (group_bar)); - g_return_if_fail (group_num >= 0); - g_return_if_fail (group_num < group_bar->children->len); - - group = &g_array_index (group_bar->children, - EGroupBarChild, group_num); - - /* Stop any animation. */ - e_group_bar_stop_all_animation (group_bar); - - gtk_widget_unparent (group->child); - if (group->button) - gtk_widget_unparent (group->button); - - if (group->button_window) { - gdk_window_set_user_data (group->button_window, NULL); - gdk_window_destroy (group->button_window); - } - if (group->child_window) { - gdk_window_set_user_data (group->child_window, NULL); - gdk_window_destroy (group->child_window); - } - - g_array_remove_index (group_bar->children, group_num); - - /* Make sure the current group is valid. */ - if (group_bar->current_group_num >= group_bar->children->len) - group_bar->current_group_num = group_bar->children->len - 1; - - gtk_widget_queue_resize (GTK_WIDGET (group_bar)); -} - - -/* - * Getting & setting the current group. - */ - -/** - * e_group_bar_get_current_group_num: - * @group_bar: an #EGroupBar. - * @Returns: the index of the group currently displayed. - * - * Returns the index of the group currently displayed. - **/ -gint -e_group_bar_get_current_group_num (EGroupBar *group_bar) -{ - g_return_val_if_fail (E_IS_GROUP_BAR (group_bar), -1); - - return group_bar->current_group_num; -} - - -/** - * e_group_bar_set_current_group_num: - * @group_bar: an #EGroupBar. - * @Returns: the index of the group to display. - * - * Sets the group to display. - **/ -/* FIXME: animate option? May want to set group without animation. */ -void -e_group_bar_set_current_group_num (EGroupBar *group_bar, - gint group_num) -{ - g_return_if_fail (E_IS_GROUP_BAR (group_bar)); - - /* If that already is the current group, just return. */ - if (group_bar->current_group_num == group_num) - return; - - /* FIXME: Set the target positions of the old current group and the - new current group, map the new group's child window, and create the - animation timeout, if we haven't already got one. */ - - group_bar->current_group_num = group_num; - -} - - -/* - * Getting groups and group numbers. - */ - -/** - * e_group_bar_get_nth_group: - * @group_bar: an #EGroupBar. - * @group_num: the index of the group to get. - * @Returns: the child widget at the given index. - * - * Returns the child widget at the given index. - **/ -GtkWidget* -e_group_bar_get_nth_group (EGroupBar *group_bar, - gint group_num) -{ - EGroupBarChild *group; - - g_return_val_if_fail (E_IS_GROUP_BAR (group_bar), NULL); - g_return_val_if_fail (group_num >= 0, NULL); - g_return_val_if_fail (group_num < group_bar->children->len, NULL); - - group = &g_array_index (group_bar->children, - EGroupBarChild, group_num); - return group->child; -} - - -/** - * e_group_bar_get_group_num: - * @group_bar: an #EGroupBar. - * @child: the child widget to find. - * @Returns: the index of the group containing the given widget. - * - * Returns the index of the group containing the given child widget. - **/ -gint -e_group_bar_get_group_num (EGroupBar *group_bar, - GtkWidget *child) -{ - EGroupBarChild *group; - gint group_num; - - g_return_val_if_fail (E_IS_GROUP_BAR (group_bar), -1); - g_return_val_if_fail (child != NULL, -1); - - for (group_num = 0; - group_num < group_bar->children->len; - group_num++) { - group = &g_array_index (group_bar->children, - EGroupBarChild, group_num); - - if (group->child == child) - return group_num; - } - - return -1; -} - - -/** - * e_group_bar_set_group_button_label: - * @group_bar: an #EGroupBar. - * @group_num: the index of the group. - * @label: the label widget to place in the group's button. - * - * Sets the label widget for the given group's button, replacing any existing - * widget in the button. - **/ -void -e_group_bar_set_group_button_label (EGroupBar *group_bar, - gint group_num, - GtkWidget *label) -{ - EGroupBarChild *group; - GtkWidget *button_child; - - g_return_if_fail (E_IS_GROUP_BAR (group_bar)); - g_return_if_fail (group_num >= 0); - g_return_if_fail (group_num < group_bar->children->len); - - group = &g_array_index (group_bar->children, - EGroupBarChild, group_num); - - button_child = GTK_BIN (group->button)->child; - if (button_child) { - gtk_container_remove (GTK_CONTAINER (group->button), - button_child); - } - - if (label) - gtk_container_add (GTK_CONTAINER (group->button), label); -} - - -/* - * Getting & setting the EGroupBar options. - */ - -/** - * e_group_bar_get_buttons_homogeneous: - * @group_bar: an #EGroupBar. - * @Returns: TRUE if the buttons are homoegeneous. - * - * Returns TRUE if the buttons are homogeneous (i.e. all have the same height). - **/ -gboolean -e_group_bar_get_buttons_homogeneous (EGroupBar *group_bar) -{ - g_return_val_if_fail (E_IS_GROUP_BAR (group_bar), TRUE); - - return group_bar->buttons_homogeneous; -} - - -/** - * e_group_bar_set_buttons_homogeneous: - * @group_bar: an #EGroupBar. - * @homogeneous: TRUE if the buttons should be homoegeneous. - * - * Specifies whether the buttons should be homogeneous. When set to TRUE all - * the group buttons will be set to the same height (equal to the largest - * requested height). When set to FALSE the buttons will use their own - * individual requested heights. - **/ -void -e_group_bar_set_buttons_homogeneous (EGroupBar *group_bar, - gboolean homogeneous) -{ - g_return_if_fail (E_IS_GROUP_BAR (group_bar)); - - /* Just return if the setting hasn't changed. */ - if (group_bar->buttons_homogeneous == homogeneous) - return; - - group_bar->buttons_homogeneous = homogeneous; - - /* Update the position & sizes of the buttons. */ - gtk_widget_queue_resize (GTK_WIDGET (group_bar)); -} - - -static void -e_group_bar_on_button_clicked (GtkWidget *group_button, - EGroupBar *group_bar) -{ - gint group_num; - - /* Determine which group button was clicked. */ - group_num = e_group_bar_find_button (group_bar, group_button); - - if (group_num != -1) - e_group_bar_start_animation (group_bar, group_num); -} - - -/* This returns the group containing the given button, or -1 if not found. */ -static gint -e_group_bar_find_button (EGroupBar *group_bar, - GtkWidget *group_button) -{ - EGroupBarChild *group; - gint group_num; - - /* Determine which group button was clicked. */ - for (group_num = 0; - group_num < group_bar->children->len; - group_num++) { - group = &g_array_index (group_bar->children, - EGroupBarChild, group_num); - if (group->button == group_button) - return group_num; - } - - return -1; -} - - -static void -e_group_bar_start_animation (EGroupBar *group_bar, - gint group_num) -{ - EGroupBarChild *group, *old_group; - gint old_group_num, step; - - old_group_num = group_bar->current_group_num; - - /* Return if it is already the current group. */ - if (old_group_num == group_num) - return; - - group_bar->current_group_num = group_num; - - /* Calculate the target y position of the new current group button - and child, and map the child. */ - group = &g_array_index (group_bar->children, - EGroupBarChild, group_num); - group->button_window_target_y = e_group_bar_get_group_button_position (group_bar, group_num); - group->button_window_in_animation = TRUE; - - group->child_window_target_y = e_group_bar_get_group_child_position (group_bar, group_num); - group->child_window_in_animation = TRUE; - - /* Calculate the target y position of the current group button and - child. */ - old_group = &g_array_index (group_bar->children, - EGroupBarChild, old_group_num); - old_group->button_window_target_y = e_group_bar_get_group_button_position (group_bar, old_group_num); - old_group->button_window_in_animation = TRUE; - - old_group->child_window_target_y = e_group_bar_get_group_child_position (group_bar, old_group_num); - old_group->child_window_in_animation = TRUE; - - /* We also need to animate the buttons in between the old group and the - new group. */ - step = (old_group_num < group_num) ? 1 : -1; - old_group_num += step; - while (old_group_num != group_num) { - old_group = &g_array_index (group_bar->children, - EGroupBarChild, old_group_num); - old_group->button_window_target_y = e_group_bar_get_group_button_position (group_bar, old_group_num); - old_group->button_window_in_animation = TRUE; - - old_group->child_window_target_y = e_group_bar_get_group_child_position (group_bar, old_group_num); - old_group->child_window_in_animation = TRUE; - - old_group_num += step; - } - - /* Add a timeout handler if we haven't already got one. */ - if (group_bar->animation_timeout_id == 0) { - group_bar->animation_timeout_id = g_timeout_add (E_GROUP_BAR_SCROLL_TIMEOUT, e_group_bar_timeout_handler, group_bar); - } -} - - -static gboolean -e_group_bar_timeout_handler (gpointer data) -{ - EGroupBar *group_bar; - EGroupBarChild *group; - gint group_num, button_window_y, child_window_y; - gboolean finished = TRUE; - - g_return_val_if_fail (E_IS_GROUP_BAR (data), FALSE); - - group_bar = E_GROUP_BAR (data); - - GDK_THREADS_ENTER (); - - for (group_num = 0; - group_num < group_bar->children->len; - group_num++) { - group = &g_array_index (group_bar->children, - EGroupBarChild, group_num); - - if (group->button_window_in_animation) { - gdk_window_get_position (group->button_window, NULL, - &button_window_y); - button_window_y += e_group_bar_get_increment (group_bar, button_window_y, group->button_window_target_y); - if (button_window_y == group->button_window_target_y) - group->button_window_in_animation = FALSE; - else - finished = FALSE; - gdk_window_move (group->button_window, - 0, button_window_y); - } - if (group->child_window_in_animation) { - gdk_window_get_position (group->child_window, NULL, - &child_window_y); - child_window_y += e_group_bar_get_increment (group_bar, child_window_y, group->child_window_target_y); - if (child_window_y == group->child_window_target_y) - group->child_window_in_animation = FALSE; - else - finished = FALSE; - gdk_window_move (group->child_window, - 0, child_window_y); - } - - } - - if (finished) - group_bar->animation_timeout_id = 0; - - GDK_THREADS_LEAVE (); - - return !finished; -} - - -static gint -e_group_bar_get_increment (EGroupBar *group_bar, - gint window_y, - gint window_target_y) -{ - gdouble percentage; - gint distance, total_distance, step; - - total_distance = group_bar->child_height; - distance = MIN (abs (window_target_y - window_y), total_distance); - - /* Convert the distance into an angle between -PI/2 and PI/2, so we can - then do a cosine of it. */ - percentage = cos (M_PI * ((gdouble)distance / (gdouble)total_distance) - M_PI / 2); - - /* Now multiply by our maximum step size to get the step size. */ - step = percentage * total_distance / 6; - - /* Add it to the minimum step size, but don't go too far. */ - step = step + E_GROUP_BAR_MIN_STEP_SIZE; - step = MIN (step, distance); - - if (window_target_y > window_y) - return step; - else - return -step; -} - - -static gboolean -e_group_bar_on_button_drag_motion (GtkWidget *widget, - GdkDragContext *context, - gint x, - gint y, - guint time, - EGroupBar *group_bar) -{ - gint group_num; - - if (!group_bar->auto_show_timeout_id) { - group_num = e_group_bar_find_button (group_bar, widget); - if (group_num != -1) { - group_bar->auto_show_timeout_id = gtk_timeout_add (E_GROUP_BAR_AUTO_SHOW_TIMEOUT, e_group_bar_auto_show, group_bar); - group_bar->auto_show_group_num = group_num; - } - } - return TRUE; -} - - -static void -e_group_bar_on_button_drag_leave (GtkWidget *widget, - GdkDragContext *context, - guint time, - EGroupBar *group_bar) -{ - if (group_bar->auto_show_timeout_id) { - gtk_timeout_remove (group_bar->auto_show_timeout_id); - group_bar->auto_show_timeout_id = 0; - } -} - - -static gboolean -e_group_bar_auto_show (gpointer data) -{ - EGroupBar *group_bar; - - g_return_val_if_fail (E_IS_GROUP_BAR (data), FALSE); - - group_bar = E_GROUP_BAR (data); - - GDK_THREADS_ENTER (); - - e_group_bar_start_animation (group_bar, - group_bar->auto_show_group_num); - - group_bar->auto_show_timeout_id = 0; - - GDK_THREADS_LEAVE (); - - return FALSE; -} - - -/* This removes all timeouts and sets all 'in_animation' flags to FALSE. */ -static void -e_group_bar_stop_all_animation (EGroupBar *group_bar) -{ - EGroupBarChild *group; - gint group_num; - - if (group_bar->animation_timeout_id) { - g_source_remove (group_bar->animation_timeout_id); - group_bar->animation_timeout_id = 0; - } - if (group_bar->auto_show_timeout_id) { - g_source_remove (group_bar->auto_show_timeout_id); - group_bar->auto_show_timeout_id = 0; - } - - for (group_num = 0; - group_num < group_bar->children->len; - group_num++) { - group = &g_array_index (group_bar->children, - EGroupBarChild, group_num); - group->button_window_in_animation = FALSE; - group->child_window_in_animation = FALSE; - } -} - |