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Diffstat (limited to 'widgets/shortcut-bar/e-icon-bar.c')
| -rw-r--r-- | widgets/shortcut-bar/e-icon-bar.c | 1643 |
1 files changed, 0 insertions, 1643 deletions
diff --git a/widgets/shortcut-bar/e-icon-bar.c b/widgets/shortcut-bar/e-icon-bar.c deleted file mode 100644 index 35f5d23f93..0000000000 --- a/widgets/shortcut-bar/e-icon-bar.c +++ /dev/null @@ -1,1643 +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 - */ - -/* - * EIconBar is a subclass of ECanvas for displaying a vertical column of - * icons and descriptions. It provides 2 views - large icons and small icons. - */ - -#include <config.h> -#include <gtk/gtkmain.h> -#include <gtk/gtksignal.h> -#include <gdk-pixbuf/gnome-canvas-pixbuf.h> -#include "e-icon-bar.h" -#include "e-icon-bar-bg-item.h" -#include <gal/e-text/e-text.h> -#include <gal/widgets/e-canvas-utils.h> - -/* These are the offsets of the icons & text in both views. Note that the - shadow around icons is drawn in the space between items (as is the - horizontal bar when dragging). */ -#define E_ICON_BAR_LARGE_ICON_SPACING 8 /* Spacing between items. */ -#define E_ICON_BAR_LARGE_ICON_WIDTH 48 -#define E_ICON_BAR_LARGE_ICON_HEIGHT 48 -#define E_ICON_BAR_LARGE_ICON_TEXT_X 4 -#define E_ICON_BAR_LARGE_ICON_TEXT_Y (E_ICON_BAR_LARGE_ICON_HEIGHT + 4) - -#define E_ICON_BAR_SMALL_ICON_SPACING 4 /* Spacing between items. */ -#define E_ICON_BAR_SMALL_ICON_WIDTH 24 -#define E_ICON_BAR_SMALL_ICON_HEIGHT 24 -#define E_ICON_BAR_SMALL_ICON_X 4 -#define E_ICON_BAR_SMALL_ICON_TEXT_X (E_ICON_BAR_SMALL_ICON_WIDTH + 6) - -/* The space we leave at the top or bottom of the bar when position an item - while it is being edited. This is used since the EIconBar may be in a - EScrolledBar which may show buttons at the top or bottom. */ -#define E_ICON_BAR_V_SPACE 22 - -/* The number of pixels the mouse has to be moved with the button down before - we start a drag. */ -#define E_ICON_BAR_DRAG_START_OFFSET 4 - -/* This is the area at the top & bottom of the bar where we auto-scroll if the - mouse goes into during a drag-and-drop operation. */ -#define E_ICON_BAR_DRAG_AUTO_SCROLL_OFFSET 16 - -/* This is the time between each auto-scroll, when dragging. */ -#define E_ICON_BAR_SCROLL_TIMEOUT 30 - -/* This is the number of timeouts we skip before we start scrolling. */ -#define E_ICON_BAR_SCROLL_DELAY 12 - - -static void e_icon_bar_class_init (EIconBarClass *class); -static void e_icon_bar_init (EIconBar *icon_bar); -static void e_icon_bar_destroy (GtkObject *object); -static void e_icon_bar_size_allocate (GtkWidget *widget, - GtkAllocation *allocation); -static gint e_icon_bar_leave_notify_event (GtkWidget *widget, - GdkEventCrossing *event); -static gint e_icon_bar_focus_in (GtkWidget *widget, - GdkEventFocus *event); -static gint e_icon_bar_focus_out (GtkWidget *widget, - GdkEventFocus *event); -static gint e_icon_bar_drag_motion (GtkWidget *widget, - GdkDragContext *context, - gint x, - gint y, - guint time); -static void e_icon_bar_drag_leave (GtkWidget *widget, - GdkDragContext *context, - guint time); -static void e_icon_bar_set_dragging_before_item (EIconBar *icon_bar, - gint before_item); -static gboolean e_icon_bar_timeout_handler (gpointer data); - -static void e_icon_bar_recalc_common_positions (EIconBar *icon_bar); -static gint e_icon_bar_recalc_item_positions (EIconBar *icon_bar); -static void e_icon_bar_reflow (ECanvas *canvas); -static gint e_icon_bar_find_item (EIconBar *icon_bar, - GnomeCanvasItem *text_item); -static gboolean e_icon_bar_on_item_event (GnomeCanvasItem *item, - GdkEvent *event, - EIconBar *icon_bar); - -static gboolean e_icon_bar_large_icons_intersects (EIconBar *icon_bar, - EIconBarItem *item, - gint x, - gint y); -static gboolean e_icon_bar_large_icons_is_before (EIconBar *icon_bar, - EIconBarItem *item, - gint x, - gint y); -static gboolean e_icon_bar_small_icons_intersects (EIconBar *icon_bar, - EIconBarItem *item, - gint x, - gint y); -static gboolean e_icon_bar_small_icons_is_before (EIconBar *icon_bar, - EIconBarItem *item, - gint x, - gint y); -static void e_icon_bar_on_editing_started (EIconBar *icon_bar, - GnomeCanvasItem *item); -static void e_icon_bar_on_editing_stopped (EIconBar *icon_bar, - GnomeCanvasItem *item); -static void e_icon_bar_ensure_edited_item_visible (EIconBar *icon_bar); -static void e_icon_bar_update_highlight (EIconBar *icon_bar); -static void e_icon_bar_vadjustment_value_changed (GtkAdjustment *adjustment, - EIconBar *icon_bar); -static void e_icon_bar_style_set (GtkWidget *widget, GtkStyle *previous_style); - -enum -{ - ITEM_SELECTED, - ITEM_DRAGGED, - LAST_SIGNAL -}; - -static guint e_icon_bar_signals[LAST_SIGNAL] = {0}; - -static ECanvasClass *parent_class; - - -GtkType -e_icon_bar_get_type (void) -{ - static GtkType e_icon_bar_type = 0; - - if (!e_icon_bar_type){ - GtkTypeInfo e_icon_bar_info = { - "EIconBar", - sizeof (EIconBar), - sizeof (EIconBarClass), - (GtkClassInitFunc) e_icon_bar_class_init, - (GtkObjectInitFunc) e_icon_bar_init, - NULL, /* reserved 1 */ - NULL, /* reserved 2 */ - (GtkClassInitFunc) NULL - }; - - parent_class = gtk_type_class (e_canvas_get_type ()); - e_icon_bar_type = gtk_type_unique (e_canvas_get_type (), - &e_icon_bar_info); - } - - return e_icon_bar_type; -} - - -static void -e_icon_bar_class_init (EIconBarClass *class) -{ - GtkObjectClass *object_class; - GtkWidgetClass *widget_class; - ECanvasClass *ecanvas_class; - - object_class = (GtkObjectClass *) class; - widget_class = (GtkWidgetClass *) class; - ecanvas_class = E_CANVAS_CLASS( class ); - - e_icon_bar_signals[ITEM_SELECTED] = - gtk_signal_new ("item_selected", - GTK_RUN_LAST | GTK_RUN_ACTION, - object_class->type, - GTK_SIGNAL_OFFSET (EIconBarClass, - selected_item), - gtk_marshal_NONE__POINTER_INT, - GTK_TYPE_NONE, 2, GTK_TYPE_GDK_EVENT, - GTK_TYPE_INT); - e_icon_bar_signals[ITEM_DRAGGED] = - gtk_signal_new ("item_dragged", - GTK_RUN_LAST | GTK_RUN_ACTION, - object_class->type, - GTK_SIGNAL_OFFSET (EIconBarClass, - dragged_item), - gtk_marshal_NONE__POINTER_INT, - GTK_TYPE_NONE, 2, GTK_TYPE_GDK_EVENT, - GTK_TYPE_INT); - - gtk_object_class_add_signals (object_class, e_icon_bar_signals, - LAST_SIGNAL); - - /* Method override */ - object_class->destroy = e_icon_bar_destroy; - - widget_class->size_allocate = e_icon_bar_size_allocate; - widget_class->leave_notify_event = e_icon_bar_leave_notify_event; - widget_class->focus_in_event = e_icon_bar_focus_in; - widget_class->focus_out_event = e_icon_bar_focus_out; - widget_class->drag_motion = e_icon_bar_drag_motion; - widget_class->drag_leave = e_icon_bar_drag_leave; - widget_class->style_set = e_icon_bar_style_set; - - ecanvas_class->reflow = e_icon_bar_reflow; - - class->selected_item = NULL; -} - - -static void -e_icon_bar_init (EIconBar *icon_bar) -{ - GdkColormap *colormap; - gboolean success[E_ICON_BAR_COLOR_LAST]; - gint nfailed; - - icon_bar->view_type = E_ICON_BAR_LARGE_ICONS; - icon_bar->items = g_array_new (FALSE, FALSE, sizeof (EIconBarItem)); - icon_bar->pressed_item_num = -1; - icon_bar->mouse_over_item_num = -1; - icon_bar->editing_item_num = -1; - icon_bar->edit_rect_item = NULL; - icon_bar->in_drag = FALSE; - icon_bar->dragging_before_item_num = -1; - icon_bar->icon_x = 0; - icon_bar->icon_w = 0; - icon_bar->icon_h = 0; - icon_bar->text_x = 0; - icon_bar->text_w = 5; - icon_bar->auto_scroll_timeout_id = 0; - icon_bar->vadjustment_value_changed_id = 0; - - /* Create the background item in the canvas, which handles selections - and drag-and-drop. */ - gnome_canvas_item_new (GNOME_CANVAS_GROUP (GNOME_CANVAS (icon_bar)->root), - e_icon_bar_bg_item_get_type (), - "EIconBarBgItem::icon_bar", icon_bar, - NULL); - - colormap = gtk_widget_get_colormap (GTK_WIDGET (icon_bar)); - - icon_bar->colors[E_ICON_BAR_COLOR_EDITING_TEXT].red = 0; - icon_bar->colors[E_ICON_BAR_COLOR_EDITING_TEXT].green = 0; - icon_bar->colors[E_ICON_BAR_COLOR_EDITING_TEXT].blue = 0; - - icon_bar->colors[E_ICON_BAR_COLOR_EDITING_RECT].red = 65535; - icon_bar->colors[E_ICON_BAR_COLOR_EDITING_RECT].green = 65535; - icon_bar->colors[E_ICON_BAR_COLOR_EDITING_RECT].blue = 65535; - - icon_bar->colors[E_ICON_BAR_COLOR_EDITING_RECT_OUTLINE].red = 0; - icon_bar->colors[E_ICON_BAR_COLOR_EDITING_RECT_OUTLINE].green = 0; - icon_bar->colors[E_ICON_BAR_COLOR_EDITING_RECT_OUTLINE].blue = 0; - - nfailed = gdk_colormap_alloc_colors (colormap, icon_bar->colors, - E_ICON_BAR_COLOR_LAST, FALSE, - TRUE, success); - if (nfailed) - g_warning ("Failed to allocate all colors"); -} - - -/** - * e_icon_bar_new: - * @Returns: A new #EIconBar. - * - * Creates a new #EIconBar. - **/ -GtkWidget * -e_icon_bar_new (void) -{ - GtkWidget *icon_bar; - - icon_bar = GTK_WIDGET (gtk_type_new (e_icon_bar_get_type ())); - - return icon_bar; -} - - -static void -e_icon_bar_destroy (GtkObject *object) -{ - EIconBar *icon_bar; - int item_num; - EIconBarItem *item; - - icon_bar = E_ICON_BAR (object); - - for (item_num = 0; item_num < icon_bar->items->len; item_num++) { - item = &g_array_index (icon_bar->items, - EIconBarItem, item_num); - if (item->destroy) - item->destroy (item->data); - } - - g_array_free (icon_bar->items, TRUE); - - if (icon_bar->auto_scroll_timeout_id != 0) { - gtk_timeout_remove (icon_bar->auto_scroll_timeout_id); - icon_bar->auto_scroll_timeout_id = 0; - } - - GTK_OBJECT_CLASS (parent_class)->destroy (object); -} - - -static void -e_icon_bar_size_allocate (GtkWidget *widget, GtkAllocation *allocation) -{ - EIconBar *icon_bar; - gint canvas_width, canvas_height, height; -#if 0 - g_print ("In e_icon_bar_size_allocate\n"); -#endif - icon_bar = E_ICON_BAR (widget); - - GTK_WIDGET_CLASS (parent_class)->size_allocate (widget, allocation); - - canvas_width = GTK_WIDGET (icon_bar)->allocation.width; - canvas_height = GTK_WIDGET (icon_bar)->allocation.height; - - /* Reset the y position and widths of all the items to the width of - the canvas, and reset the button labels, so they fit. */ - e_icon_bar_recalc_common_positions (icon_bar); - height = e_icon_bar_recalc_item_positions (icon_bar); - - gnome_canvas_set_scroll_region (GNOME_CANVAS (widget), - 0, 0, canvas_width, - MAX (height, canvas_height - 1)); - - /* If we are editing an item, make sure it is visible. */ - e_icon_bar_ensure_edited_item_visible (icon_bar); - - GTK_LAYOUT (widget)->vadjustment->step_increment = 16; - if (icon_bar->vadjustment_value_changed_id == 0) - icon_bar->vadjustment_value_changed_id = gtk_signal_connect (GTK_OBJECT (GTK_LAYOUT (widget)->vadjustment), "value_changed", GTK_SIGNAL_FUNC (e_icon_bar_vadjustment_value_changed), icon_bar); - - e_icon_bar_update_highlight (icon_bar); -} - - -/* This sets all the item positions which are the same for all items in the - group. */ -static void -e_icon_bar_recalc_common_positions (EIconBar *icon_bar) -{ - gint canvas_width; - - canvas_width = GTK_WIDGET (icon_bar)->allocation.width; - - if (icon_bar->view_type == E_ICON_BAR_LARGE_ICONS) { - icon_bar->icon_x = (canvas_width - E_ICON_BAR_LARGE_ICON_WIDTH) / 2; - icon_bar->icon_w = E_ICON_BAR_LARGE_ICON_WIDTH; - icon_bar->icon_h = E_ICON_BAR_LARGE_ICON_HEIGHT; - - icon_bar->text_x = E_ICON_BAR_LARGE_ICON_TEXT_X; - icon_bar->text_w = MAX (canvas_width - (E_ICON_BAR_LARGE_ICON_TEXT_X * 2), 5); - - icon_bar->spacing = E_ICON_BAR_LARGE_ICON_SPACING; - } else { - icon_bar->icon_x = E_ICON_BAR_SMALL_ICON_X; - icon_bar->icon_w = E_ICON_BAR_SMALL_ICON_WIDTH; - icon_bar->icon_h = E_ICON_BAR_SMALL_ICON_HEIGHT; - - icon_bar->text_x = E_ICON_BAR_SMALL_ICON_TEXT_X; - icon_bar->text_w = MAX (canvas_width - E_ICON_BAR_SMALL_ICON_TEXT_X, 5); - - icon_bar->spacing = E_ICON_BAR_SMALL_ICON_SPACING; - } -} - - -/* This recalculates the positions of all the items, according to the current - view type and the height of the text items. */ -static gint -e_icon_bar_recalc_item_positions (EIconBar *icon_bar) -{ - EIconBarItem *item; - gint y, item_num, text_h; - gdouble x1, y1, x2, y2, text_x; - GtkJustification justify; - GtkAnchorType anchor; - gint max_lines; - GdkFont *font; - gboolean line_wrap; - - if (icon_bar->view_type == E_ICON_BAR_LARGE_ICONS) { - justify = GTK_JUSTIFY_CENTER; - anchor = GTK_ANCHOR_N; - max_lines = 2; - text_x = icon_bar->text_x + (icon_bar->text_w / 2); - line_wrap = TRUE; - - /* - * Fixme: incorrect - */ - font = GTK_WIDGET (icon_bar)->style->font; - text_h = font->ascent + font->descent; - } else { - justify = GTK_JUSTIFY_LEFT; - anchor = GTK_ANCHOR_NW; - max_lines = 1; - text_x = icon_bar->text_x; - font = GTK_WIDGET (icon_bar)->style->font; - text_h = font->ascent + font->descent; - line_wrap = FALSE; - } - - /* Now step through the items, setting the y positions. */ - y = icon_bar->spacing; - for (item_num = 0; item_num < icon_bar->items->len; item_num++) { - item = &g_array_index (icon_bar->items, - EIconBarItem, item_num); - - if (icon_bar->view_type == E_ICON_BAR_LARGE_ICONS) { - item->icon_y = y; - item->text_y = y + E_ICON_BAR_LARGE_ICON_TEXT_Y; - } else { - item->text_height = text_h; - item->item_height = MAX (text_h, E_ICON_BAR_SMALL_ICON_HEIGHT); - item->icon_y = y + (item->item_height - E_ICON_BAR_SMALL_ICON_HEIGHT) / 2; - item->text_y = y + (item->item_height - item->text_height) / 2; - } - - gnome_canvas_item_set (item->text, - "clip_width", (gdouble) (icon_bar->text_w), - "justification", justify, - "anchor", anchor, - "max_lines", max_lines, - "line_wrap", line_wrap, - NULL); - e_canvas_item_move_absolute(item->text, - text_x, item->text_y); - - /* Get the text item's height. */ - gnome_canvas_item_get_bounds (item->text, &x1, &y1, &x2, &y2); - item->text_x = x1; - item->text_width = x2 - x1; - item->text_height = y2 - y1; - - if (icon_bar->view_type == E_ICON_BAR_LARGE_ICONS) { - item->item_height = E_ICON_BAR_LARGE_ICON_TEXT_Y - + item->text_height; - } - - gnome_canvas_item_set (item->image, - "GnomeCanvasPixbuf::x", (gdouble)icon_bar->icon_x, - "GnomeCanvasPixbuf::y", (gdouble)item->icon_y, - "GnomeCanvasPixbuf::width_set", TRUE, - "GnomeCanvasPixbuf::height_set", TRUE, - "GnomeCanvasPixbuf::width", (gdouble)icon_bar->icon_w, - "GnomeCanvasPixbuf::height", (gdouble)icon_bar->icon_h, - NULL); - - y += item->item_height + icon_bar->spacing; - } - - return y; -} - - -static gint -e_icon_bar_leave_notify_event (GtkWidget *widget, GdkEventCrossing *event) -{ - EIconBar *icon_bar; - - icon_bar = E_ICON_BAR (widget); - - GTK_WIDGET_CLASS (parent_class)->leave_notify_event (widget, event); - - /* Make sure no items are highlighted. */ - e_icon_bar_item_motion (icon_bar, -1, NULL); - - return FALSE; -} - - -static gint -e_icon_bar_focus_in (GtkWidget *widget, - GdkEventFocus *event) -{ - g_return_val_if_fail (widget != NULL, FALSE); - g_return_val_if_fail (E_IS_ICON_BAR (widget), FALSE); - g_return_val_if_fail (event != NULL, FALSE); - - GTK_WIDGET_CLASS (parent_class)->focus_in_event (widget, event); - GTK_WIDGET_SET_FLAGS (widget, GTK_HAS_FOCUS); - return FALSE; -} - - -static gint -e_icon_bar_focus_out (GtkWidget *widget, - GdkEventFocus *event) -{ - g_return_val_if_fail (widget != NULL, FALSE); - g_return_val_if_fail (E_IS_ICON_BAR (widget), FALSE); - g_return_val_if_fail (event != NULL, FALSE); - - GTK_WIDGET_CLASS (parent_class)->focus_out_event (widget, event); - GTK_WIDGET_UNSET_FLAGS (widget, GTK_HAS_FOCUS); - return FALSE; -} - - -/** - * e_icon_bar_set_view_type: - * @icon_bar: An #EIconBar. - * @view_type: The new view type, %E_ICON_BAR_LARGE_ICONS or - * %E_ICON_BAR_SMALL_ICONS. - * - * Sets the view type of the #EIconBar. - **/ -void -e_icon_bar_set_view_type (EIconBar *icon_bar, - EIconBarViewType view_type) -{ - g_return_if_fail (E_IS_ICON_BAR (icon_bar)); - - if (icon_bar->view_type == view_type) - return; - - icon_bar->view_type = view_type; - - /* Queue a resize of the canvas, so everything is put in the right - positions based on the new view type. */ - gtk_widget_queue_resize (GTK_WIDGET (icon_bar)); -} - -static GdkPixbuf * -flatten_alpha (GdkPixbuf *image, guint rgb) -{ - if (!image || !gdk_pixbuf_get_has_alpha (image)) - return NULL; - - - return gdk_pixbuf_composite_color_simple ( - image, - gdk_pixbuf_get_width (image), - gdk_pixbuf_get_height (image), - GDK_INTERP_NEAREST, - 255, - 32, - rgb, rgb); -} - -/* - * Creates a 24-bits RGB value from a GdkColor - */ -static guint -rgb_from_gdk_color (GdkColor *color) -{ - guint a = - (((color->red >> 8) << 16) | - ((color->green >> 8) << 8) | - ((color->blue >> 8))); - - return a; -} - -static void -e_icon_bar_style_set (GtkWidget *widget, GtkStyle *previous_style) { - EIconBar *icon_bar; - EIconBarItem *item; - gint item_num; - GdkPixbuf *flattened; - GtkStyle *style = widget->style; - GdkColormap *colormap; - - colormap = gtk_widget_get_colormap (widget); - gdk_color_alloc (colormap, &style->fg [GTK_STATE_NORMAL]); - - icon_bar = E_ICON_BAR (widget); - - for (item_num = 0; item_num < icon_bar->items->len; item_num++) { - - item = &g_array_index (icon_bar->items, - EIconBarItem, item_num); - - flattened = flatten_alpha (item->pixbuf, - rgb_from_gdk_color (&style->bg [GTK_STATE_NORMAL])); - - gnome_canvas_item_set(item->image, - "GnomeCanvasPixbuf::pixbuf", flattened ? flattened : item->pixbuf, - NULL); - gnome_canvas_item_set (item->text, - "font_gdk", style->font, - "fill_color_gdk", &style->fg [GTK_STATE_NORMAL], - NULL); - - if (flattened) - /* the canvas item holds the reference now */ - gdk_pixbuf_unref (flattened); - - } - - e_icon_bar_recalc_item_positions (icon_bar); -} - - -/** - * e_icon_bar_add_item: - * @icon_bar: An #EIconBar. - * @image: the new item's icon. - * @text: the new item's text. - * @position: the position to place the new item, or -1 to place it last. - * - * Adds an item to the #EIconBar at the given position. - **/ -gint -e_icon_bar_add_item (EIconBar *icon_bar, - GdkPixbuf *image, - const gchar *text, - gint position) -{ - EIconBarItem item; - GtkJustification justify; - GtkAnchorType anchor; - gint max_lines, retval; - GtkStyle *style; - GdkFont *font; - gdouble text_x, clip_height; - GdkPixbuf *flattened = NULL; - - g_return_val_if_fail (E_IS_ICON_BAR (icon_bar), -1); - g_return_val_if_fail (text != NULL, -1); - g_return_val_if_fail (position >= -1, -1); - g_return_val_if_fail (position <= (gint)icon_bar->items->len, -1); - - if (icon_bar->view_type == E_ICON_BAR_LARGE_ICONS) { - justify = GTK_JUSTIFY_CENTER; - anchor = GTK_ANCHOR_N; - max_lines = 2; - text_x = icon_bar->text_x + (icon_bar->text_w / 2); - } else { - justify = GTK_JUSTIFY_LEFT; - anchor = GTK_ANCHOR_NW; - max_lines = 1; - text_x = icon_bar->text_x; - } - - gtk_widget_ensure_style (GTK_WIDGET (icon_bar)); - style = GTK_WIDGET (icon_bar)->style; - font = style->font; - clip_height = max_lines * (font->ascent + font->descent); - item.text = gnome_canvas_item_new (GNOME_CANVAS_GROUP (GNOME_CANVAS (icon_bar)->root), - e_text_get_type (), - "font_gdk", font, - "fill_color_gdk", &style->fg [GTK_STATE_NORMAL], - "use_ellipsis", TRUE, - "anchor", anchor, - "editable", TRUE, - "justification", justify, - "line_wrap", TRUE, - "max_lines", max_lines, - "clip", TRUE, - "clip_width", (gdouble) (icon_bar->text_w), - "clip_height", clip_height, - "text", text, - NULL); - e_canvas_item_move_absolute(item.text, - text_x, 0); - - gtk_signal_connect (GTK_OBJECT (item.text), "event", - GTK_SIGNAL_FUNC (e_icon_bar_on_item_event), - icon_bar); - - item.pixbuf = image; - gdk_pixbuf_ref (image); - - flattened = flatten_alpha (image, - rgb_from_gdk_color (&style->bg [GTK_STATE_NORMAL])); - - item.image = gnome_canvas_item_new (GNOME_CANVAS_GROUP (GNOME_CANVAS (icon_bar)->root), - gnome_canvas_pixbuf_get_type (), - "GnomeCanvasPixbuf::pixbuf", flattened ? flattened : image, - "GnomeCanvasPixbuf::width", (gdouble) icon_bar->icon_w, - "GnomeCanvasPixbuf::height", (gdouble) icon_bar->icon_h, - NULL); - - - if (flattened) - /* the canvas item holds the reference now */ - gdk_pixbuf_unref (flattened); - - gtk_signal_connect (GTK_OBJECT (item.image), "event", - GTK_SIGNAL_FUNC (e_icon_bar_on_item_event), - icon_bar); - - item.data = NULL; - item.destroy = NULL; - - if (position == -1) { - g_array_append_val (icon_bar->items, item); - retval = icon_bar->items->len - 1; - } else { - g_array_insert_val (icon_bar->items, position, item); - retval = position; - - /* FIXME: Should possibly update other indices. */ - if (icon_bar->dragged_item_num >= position) - icon_bar->dragged_item_num++; - } - - gtk_widget_queue_resize (GTK_WIDGET (icon_bar)); - - return retval; -} - - -/** - * e_icon_bar_reorder_item: - * @icon_bar: An #EIconBar. - * @item_num: The index of the item to move. - * @new_position: The new position of the item, which is used after the item - * has been removed from its current position. If @new_position is -1, the item - * is placed last. - * - * Moves an item to a new position within the #EIconBar. - **/ -void -e_icon_bar_reorder_item (EIconBar *icon_bar, - gint item_num, - gint new_position) -{ - EIconBarItem tmp_item; - - g_return_if_fail (E_IS_ICON_BAR (icon_bar)); - g_return_if_fail (item_num >= 0); - g_return_if_fail (item_num < icon_bar->items->len); - g_return_if_fail (new_position >= -1); - g_return_if_fail (new_position < icon_bar->items->len); - - tmp_item = g_array_index (icon_bar->items, EIconBarItem, item_num); - g_array_remove_index (icon_bar->items, item_num); - - if (new_position == -1) - g_array_append_val (icon_bar->items, tmp_item); - else - g_array_insert_val (icon_bar->items, new_position, tmp_item); - - gtk_widget_queue_resize (GTK_WIDGET (icon_bar)); -} - - -/** - * e_icon_bar_remove_item: - * @icon_bar: An #EIconBar. - * @item_num: The index of the item to remove. - * - * Removes an item from the #EIconBar. - **/ -void -e_icon_bar_remove_item (EIconBar *icon_bar, - gint item_num) -{ - EIconBarItem *item; - - g_return_if_fail (E_IS_ICON_BAR (icon_bar)); - g_return_if_fail (item_num >= 0); - g_return_if_fail (item_num < icon_bar->items->len); - - item = &g_array_index (icon_bar->items, EIconBarItem, item_num); - - if (item->destroy) - item->destroy (item->data); - - gtk_object_destroy (GTK_OBJECT (item->text)); - gtk_object_destroy (GTK_OBJECT (item->image)); - gdk_pixbuf_unref (item->pixbuf); - - g_array_remove_index (icon_bar->items, item_num); - - gtk_widget_queue_resize (GTK_WIDGET (icon_bar)); -} - - -/** - * e_icon_bar_get_item_image: - * @icon_bar: An #EIconBar. - * @item_num: The index of the item. - * @Returns: The icon of the given item. - * - * Returns the icon used for the given item. - **/ -GdkPixbuf * -e_icon_bar_get_item_image (EIconBar *icon_bar, - gint item_num) -{ - EIconBarItem *item; - GdkPixbuf *image = NULL; - - g_return_val_if_fail (E_IS_ICON_BAR (icon_bar), NULL); - g_return_val_if_fail (item_num >= 0, NULL); - g_return_val_if_fail (item_num < icon_bar->items->len, NULL); - - item = &g_array_index (icon_bar->items, EIconBarItem, item_num); - gtk_object_get (GTK_OBJECT (item->image), - "GnomeCanvasPixbuf::pixbuf", &image, - NULL); - return image; -} - - -/** - * e_icon_bar_set_item_image: - * @icon_bar: An #EIconBar. - * @item_num: The index of the item. - * @image: The new icon to use for the given item. - * - * Sets the icon to use for the given item. - **/ -void -e_icon_bar_set_item_image (EIconBar *icon_bar, - gint item_num, - GdkPixbuf *image) -{ - EIconBarItem *item; - - g_return_if_fail (E_IS_ICON_BAR (icon_bar)); - g_return_if_fail (item_num >= 0); - g_return_if_fail (item_num < icon_bar->items->len); - - item = &g_array_index (icon_bar->items, EIconBarItem, item_num); - gnome_canvas_item_set (item->image, - "GnomeCanvasPixbuf::pixbuf", image, - NULL); -} - - -/** - * e_icon_bar_get_item_text: - * @icon_bar: An #EIconBar. - * @item_num: The index of the item. - * @Returns: The text of the given item. - * - * Returns the text of the given item. This should be freed when no longer - * needed. - **/ -gchar* -e_icon_bar_get_item_text (EIconBar *icon_bar, - gint item_num) -{ - EIconBarItem *item; - gchar *text; - - g_return_val_if_fail (E_IS_ICON_BAR (icon_bar), NULL); - g_return_val_if_fail (item_num >= 0, NULL); - g_return_val_if_fail (item_num < icon_bar->items->len, NULL); - - item = &g_array_index (icon_bar->items, EIconBarItem, item_num); - gtk_object_get (GTK_OBJECT (item->text), - "EText::text", &text, - NULL); - - return text; -} - - -/** - * e_icon_bar_set_item_text: - * @icon_bar: An #EIconBar. - * @item_num: The index of the item. - * @text: The new text for the given item. - * - * Sets the text of the given item. - **/ -void -e_icon_bar_set_item_text (EIconBar *icon_bar, - gint item_num, - gchar *text) -{ - EIconBarItem *item; - - g_return_if_fail (E_IS_ICON_BAR (icon_bar)); - g_return_if_fail (item_num >= 0); - g_return_if_fail (item_num < icon_bar->items->len); - - item = &g_array_index (icon_bar->items, EIconBarItem, item_num); - gnome_canvas_item_set (item->text, - "EText::text", text, - NULL); -} - - -/** - * e_icon_bar_get_item_data: - * @icon_bar: An #EIconBar. - * @item_num: The index of the item. - * @Returns: The user data associated with the given item. - * - * Returns the user data associated with the given item. - **/ -gpointer -e_icon_bar_get_item_data (EIconBar *icon_bar, - gint item_num) -{ - EIconBarItem *item; - - g_return_val_if_fail (E_IS_ICON_BAR (icon_bar), NULL); - g_return_val_if_fail (item_num >= 0, NULL); - g_return_val_if_fail (item_num < icon_bar->items->len, NULL); - - item = &g_array_index (icon_bar->items, EIconBarItem, item_num); - return item->data; -} - - -/** - * e_icon_bar_set_item_data: - * @icon_bar: An #EIconBar. - * @item_num: The index of the item. - * @data: The user data to set for the given item. - * - * Sets the user data of the given item. - **/ -void -e_icon_bar_set_item_data (EIconBar *icon_bar, - gint item_num, - gpointer data) -{ - e_icon_bar_set_item_data_full (icon_bar, item_num, data, NULL); -} - - -/** - * e_icon_bar_set_item_data_full: - * @icon_bar: An #EIconBar. - * @item_num: The index of the item. - * @data: The user data to set for the given item. - * @destroy: The function to free @data when the item is destroyed. - * - * Sets the user data of the given item, and the function to free the data - * when the item is destroyed. - **/ -void -e_icon_bar_set_item_data_full (EIconBar *icon_bar, - gint item_num, - gpointer data, - GtkDestroyNotify destroy) -{ - EIconBarItem *item; - - g_return_if_fail (E_IS_ICON_BAR (icon_bar)); - g_return_if_fail (item_num >= 0); - g_return_if_fail (item_num < icon_bar->items->len); - - item = &g_array_index (icon_bar->items, EIconBarItem, item_num); - - if (item->destroy) - item->destroy (item->data); - - item->data = data; - item->destroy = destroy; -} - - -static void -e_icon_bar_reflow (ECanvas *canvas) -{ -#if 0 - g_print ("In e_icon_bar_on_canvas_reflow\n"); - gtk_widget_queue_resize (GTK_WIDGET (canvas)); -#endif -} - - -/* This returns the index of the given item, or -1 if it isn't found. */ -static gint -e_icon_bar_find_item (EIconBar *icon_bar, - GnomeCanvasItem *canvas_item) -{ - EIconBarItem *item; - gint item_num; - - for (item_num = 0; item_num < icon_bar->items->len; item_num++) { - item = &g_array_index (icon_bar->items, - EIconBarItem, item_num); - - if (item->text == canvas_item || item->image == canvas_item) { - return item_num; - } - } - - return -1; -} - - -/* When an item has a grab, it will get all events, so we need to use the - position to find the real item. */ -static gboolean -e_icon_bar_on_item_event (GnomeCanvasItem *item, - GdkEvent *event, - EIconBar *icon_bar) -{ - gint item_num; - - switch (event->type) { - case GDK_BUTTON_PRESS: - if (event->button.button == 4 || event->button.button == 5) - return FALSE; - - item_num = e_icon_bar_find_item_at_position (icon_bar, - event->button.x, - event->button.y, - NULL); - /* If the item is not being edited, we handle the event and - stop the signal so the text editing isn't started. */ - if (icon_bar->editing_item_num == -1 - || icon_bar->editing_item_num != item_num) { - e_icon_bar_item_pressed (icon_bar, item_num, event); - gtk_signal_emit_stop_by_name (GTK_OBJECT (item), - "event"); - return TRUE; - } - break; - case GDK_BUTTON_RELEASE: - item_num = e_icon_bar_find_item_at_position (icon_bar, - event->button.x, - event->button.y, - NULL); - /* If the item is not being edited, we handle the event and - stop the signal so the text editing isn't started. */ - if (icon_bar->editing_item_num == -1 - || icon_bar->editing_item_num != item_num) { - e_icon_bar_item_released (icon_bar, item_num, event); - gtk_signal_emit_stop_by_name (GTK_OBJECT (item), - "event"); - return TRUE; - } - break; - case GDK_MOTION_NOTIFY: - item_num = e_icon_bar_find_item_at_position (icon_bar, - event->motion.x, - event->motion.y, - NULL); - e_icon_bar_item_motion (icon_bar, item_num, event); - return TRUE; - case GDK_FOCUS_CHANGE: - if (event->focus_change.in) - e_icon_bar_on_editing_started (icon_bar, item); - else - e_icon_bar_on_editing_stopped (icon_bar, item); - - return FALSE; - default: - break; - } - - return FALSE; -} - - -void -e_icon_bar_item_pressed (EIconBar *icon_bar, - gint item_num, - GdkEvent *event) -{ - gint button; - - /* If we are editing an item, and a different item (or anywhere outside - an item) is clicked, stop the edit. If the item being edited is - clicked we just return, since the user may be selecting text. */ - if (icon_bar->editing_item_num != -1) { - if (icon_bar->editing_item_num != item_num) { - e_icon_bar_stop_editing_item (icon_bar, TRUE); - } - return; - } - - button = event->button.button; - - if (button == 1 && item_num != -1) { - icon_bar->mouse_over_item_num = item_num; - icon_bar->pressed_item_num = item_num; - icon_bar->pressed_x = event->button.x; - icon_bar->pressed_y = event->button.y; - gtk_widget_queue_draw (GTK_WIDGET (icon_bar)); - } else if (button == 3) { - gtk_signal_emit (GTK_OBJECT (icon_bar), - e_icon_bar_signals[ITEM_SELECTED], - event, item_num); - } -} - - -void -e_icon_bar_item_released (EIconBar *icon_bar, - gint item_num, - GdkEvent *event) -{ - gint button; - - /* If we are editing an item, just return. */ - if (icon_bar->editing_item_num != -1) - return; - - button = event->button.button; - - if (button == 1) { - if (icon_bar->pressed_item_num != -1 - && icon_bar->pressed_item_num == icon_bar->mouse_over_item_num) { - gtk_signal_emit (GTK_OBJECT (icon_bar), - e_icon_bar_signals[ITEM_SELECTED], - event, item_num); - } - - icon_bar->pressed_item_num = -1; - gtk_widget_queue_draw (GTK_WIDGET (icon_bar)); - } -} - - -void -e_icon_bar_item_motion (EIconBar *icon_bar, - gint item_num, - GdkEvent *event) -{ - gboolean need_redraw = TRUE; - - if (event && event->motion.state & GDK_BUTTON1_MASK - && icon_bar->pressed_item_num != -1) { - if (abs (event->motion.x - icon_bar->pressed_x) > E_ICON_BAR_DRAG_START_OFFSET - || abs (event->motion.y - icon_bar->pressed_y) > E_ICON_BAR_DRAG_START_OFFSET) { - icon_bar->dragged_item_num = icon_bar->pressed_item_num; - gtk_signal_emit (GTK_OBJECT (icon_bar), - e_icon_bar_signals[ITEM_DRAGGED], - event, icon_bar->dragged_item_num); - - /* Don't show the button as pressed while dragging. */ - icon_bar->pressed_item_num = -1; - gtk_widget_queue_draw (GTK_WIDGET (icon_bar)); - } - - return; - } - - if (icon_bar->mouse_over_item_num == item_num) - return; - - /* If we are editing an item, items aren't highlighted so we don't - need a redraw. Also if an item is pressed, we only need a redraw if - item_num or the old mouse_over_item_num is the pressed item. */ - if (icon_bar->editing_item_num != -1) { - need_redraw = FALSE; - } else if (icon_bar->pressed_item_num != -1) { - if (icon_bar->pressed_item_num != item_num - && icon_bar->pressed_item_num != icon_bar->mouse_over_item_num) - need_redraw = FALSE; - } - - icon_bar->mouse_over_item_num = item_num; - - if (need_redraw) - gtk_widget_queue_draw (GTK_WIDGET (icon_bar)); -} - - -/* This returns the index of the item at the given position on the EIconBar, - or -1 if no item is found. If before_item is not NULL, it returns the - item which the mouse is before, or -1 (for dragging). */ -gint -e_icon_bar_find_item_at_position (EIconBar *icon_bar, - gint x, - gint y, - gint *before_item) -{ - EIconBarItem *item = NULL; - gint item_num; - - if (before_item) - *before_item = -1; - - for (item_num = 0; item_num < icon_bar->items->len; item_num++) { - item = &g_array_index (icon_bar->items, - EIconBarItem, item_num); - - if (icon_bar->view_type == E_ICON_BAR_LARGE_ICONS) { - if (e_icon_bar_large_icons_intersects (icon_bar, item, - x, y)) - return item_num; - - if (before_item - && e_icon_bar_large_icons_is_before (icon_bar, - item, x, y)) { - *before_item = item_num; - return -1; - } - } else { - if (e_icon_bar_small_icons_intersects (icon_bar, item, - x, y)) - return item_num; - - if (before_item - && e_icon_bar_small_icons_is_before (icon_bar, - item, x, y)) { - *before_item = item_num; - return -1; - } - - } - - } - - /* If the mouse is below all the items, but inside the items' width, - and before_item is not NULL, we set it to the number of items, so - the dropped item would be added at the end. Note that this assumes - that the item variable points to the last item in the EIconBar. */ - if (before_item) { - if (icon_bar->view_type == E_ICON_BAR_LARGE_ICONS) { - if (x < icon_bar->text_x - || x >= icon_bar->text_x + icon_bar->text_w) - return -1; - - if (item == NULL - || y > item->icon_y + item->item_height) - *before_item = icon_bar->items->len; - } else { - if (x < icon_bar->icon_x - || x >= icon_bar->text_x + icon_bar->text_w) - return -1; - - if (item == NULL) { - *before_item = icon_bar->items->len; - } else { - gint max_y; - max_y = MAX (item->icon_y + icon_bar->icon_h, - item->text_y + item->text_height); - if (y > max_y) - *before_item = icon_bar->items->len; - } - } - } - - return -1; -} - - -static gboolean -e_icon_bar_large_icons_intersects (EIconBar *icon_bar, - EIconBarItem *item, - gint x, - gint y) -{ - if (y < item->icon_y || y >= item->text_y + item->text_height) - return FALSE; - - if (y < item->icon_y + icon_bar->icon_h) { - if (x < icon_bar->icon_x - || x >= icon_bar->icon_x + icon_bar->icon_w) - return FALSE; - } else { - if (x < item->text_x - || x >= item->text_x + item->text_width) - return FALSE; - } - - return TRUE; -} - - -static gboolean -e_icon_bar_large_icons_is_before (EIconBar *icon_bar, - EIconBarItem *item, - gint x, - gint y) -{ - if (y < item->icon_y - icon_bar->spacing - || y >= item->icon_y) - return FALSE; - - if (x < icon_bar->text_x || x >= icon_bar->text_x + icon_bar->text_w) - return FALSE; - - return TRUE; -} - - -static gboolean -e_icon_bar_small_icons_intersects (EIconBar *icon_bar, - EIconBarItem *item, - gint x, - gint y) -{ - gint min_y, max_y; - - min_y = MIN (item->icon_y, item->text_y); - max_y = MAX (item->icon_y + icon_bar->icon_h, - item->text_y + item->text_height); - - if (y < min_y || y >= max_y) - return FALSE; - - if (x < icon_bar->icon_x || x >= item->text_x + item->text_width) - return FALSE; - - return TRUE; -} - - -static gboolean -e_icon_bar_small_icons_is_before (EIconBar *icon_bar, - EIconBarItem *item, - gint x, - gint y) -{ - gint min_y, max_y; - - max_y = MIN (item->icon_y, item->text_y); - min_y = max_y - icon_bar->spacing; - - if (y < min_y || y >= max_y) - return FALSE; - - if (x < icon_bar->icon_x || x >= icon_bar->text_x + icon_bar->text_w) - return FALSE; - - return TRUE; -} - - -/** - * e_icon_bar_start_editing_item: - * @icon_bar: An #EIconBar. - * @item_num: The index of the item. - * - * Turns the item into an editable text field so the user can rename it. - * Editing is stopped automatically when the user hits 'Return' or clicks - * outside the item. It can also be stopped explicitly by calling - * e_icon_bar_stop_editing_item(). - **/ -void -e_icon_bar_start_editing_item (EIconBar *icon_bar, - gint item_num) -{ - EIconBarItem *item; - - g_return_if_fail (E_IS_ICON_BAR (icon_bar)); - g_return_if_fail (item_num >= 0); - g_return_if_fail (item_num < icon_bar->items->len); - - item = &g_array_index (icon_bar->items, - EIconBarItem, item_num); - e_canvas_item_grab_focus (item->text); -} - - -/** - * e_icon_bar_stop_editing_item: - * @icon_bar: An #EIconBar. - * @accept: TRUE if the changes should be accepted, FALSE if the text should be - * changed back to its state before the editing started. - * - * Stops the editing of the items, if any were being edited. - **/ -void -e_icon_bar_stop_editing_item (EIconBar *icon_bar, - gboolean accept) -{ - EIconBarItem *item; - GtkWidget *toplevel; - - g_return_if_fail (E_IS_ICON_BAR (icon_bar)); - - if (icon_bar->editing_item_num != -1) { - item = &g_array_index (icon_bar->items, EIconBarItem, - icon_bar->editing_item_num); - - toplevel = gtk_widget_get_toplevel (GTK_WIDGET (icon_bar)); - if (toplevel && GTK_IS_WINDOW (toplevel)) - gtk_window_set_focus (GTK_WINDOW (toplevel), NULL); - } -} - - -static void -e_icon_bar_on_editing_started (EIconBar *icon_bar, - GnomeCanvasItem *item) -{ - gint item_num; - gdouble x1, y1, x2, y2; - - item_num = e_icon_bar_find_item (icon_bar, item); - g_return_if_fail (item_num != -1); - - /* Turn off any highlighted item. */ - e_icon_bar_item_motion (icon_bar, -1, NULL); - - icon_bar->editing_item_num = item_num; - - e_icon_bar_ensure_edited_item_visible (icon_bar); - - /* Set the fg & bg colors. */ - gnome_canvas_item_set (item, - "fill_color_gdk", &icon_bar->colors[E_ICON_BAR_COLOR_EDITING_TEXT], - NULL); - - /* Create the edit rect if necessary. */ - if (!icon_bar->edit_rect_item) { - icon_bar->edit_rect_item = - gnome_canvas_item_new (GNOME_CANVAS_GROUP (GNOME_CANVAS (icon_bar)->root), - gnome_canvas_rect_get_type(), - "fill_color_gdk", &icon_bar->colors[E_ICON_BAR_COLOR_EDITING_RECT], - "outline_color_gdk", &icon_bar->colors[E_ICON_BAR_COLOR_EDITING_RECT_OUTLINE], - NULL); - } - - gnome_canvas_item_get_bounds (item, &x1, &y1, &x2, &y2); - gnome_canvas_item_set (icon_bar->edit_rect_item, - "x1", x1 - 1, - "y1", y1 - 1, - "x2", x2 + 1, - "y2", y2 + 1, - NULL); - gnome_canvas_item_show (icon_bar->edit_rect_item); - - /* Make sure the text item is on top. */ - gnome_canvas_item_raise_to_top (item); -} - - -static void -e_icon_bar_on_editing_stopped (EIconBar *icon_bar, - GnomeCanvasItem *item) -{ - gint item_num; - - item_num = e_icon_bar_find_item (icon_bar, item); - g_return_if_fail (item_num != -1); - - icon_bar->editing_item_num = -1; - - e_icon_bar_update_highlight (icon_bar); - - /* Reset the fg & bg colors. */ - gnome_canvas_item_set (item, - "fill_color_gdk", &(GTK_WIDGET(icon_bar)->style->fg [GTK_STATE_NORMAL]), - NULL); - - if (icon_bar->edit_rect_item) { - gnome_canvas_item_hide (icon_bar->edit_rect_item); - } -} - - -static void -e_icon_bar_ensure_edited_item_visible (EIconBar *icon_bar) -{ - EIconBarItem *item; - gint scroll_x, scroll_y, min_scroll_y, max_scroll_y, new_scroll_y; - - if (icon_bar->editing_item_num == -1) - return; - - item = &g_array_index (icon_bar->items, - EIconBarItem, icon_bar->editing_item_num); - gnome_canvas_get_scroll_offsets (GNOME_CANVAS (icon_bar), - &scroll_x, &scroll_y); - - /* The minimum scroll y position is with the text right on the bottom - of the display. */ - min_scroll_y = item->text_y + item->text_height + E_ICON_BAR_V_SPACE - - GTK_WIDGET (icon_bar)->allocation.height; - /* The maximum scroll y position is with the text at the top. */ - max_scroll_y = item->text_y - E_ICON_BAR_V_SPACE; - - new_scroll_y = MAX (scroll_y, min_scroll_y); - new_scroll_y = MIN (new_scroll_y, max_scroll_y); - - if (new_scroll_y != scroll_y) - gnome_canvas_scroll_to (GNOME_CANVAS (icon_bar), - scroll_x, new_scroll_y); -} - - -/* This gets the mouse position and updates the highlight if necessary. - It is called after items are added/deleted/scrolled/edited. */ -static void -e_icon_bar_update_highlight (EIconBar *icon_bar) -{ - GtkWidget *widget; - gint x, y, item_num; - - widget = GTK_WIDGET (icon_bar); - - if (!widget->window) - return; - - gdk_window_get_pointer (widget->window, &x, &y, NULL); - - if (x < 0 || y < 0 - || x > widget->allocation.width || y > widget->allocation.height) - return; - - x += icon_bar->canvas.parent.layout.hadjustment->value; - y += icon_bar->canvas.parent.layout.vadjustment->value; - item_num = e_icon_bar_find_item_at_position (icon_bar, x, y, NULL); - e_icon_bar_item_motion (icon_bar, item_num, NULL); -} - - -static gint -e_icon_bar_drag_motion (GtkWidget *widget, - GdkDragContext *context, - gint x, - gint y, - guint time) -{ - EIconBar *icon_bar; - gint item_num, before_item, scroll_x, scroll_y; - - g_return_val_if_fail (E_IS_ICON_BAR (widget), FALSE); - - icon_bar = E_ICON_BAR (widget); - - icon_bar->in_drag = TRUE; - - /* Check if the mouse is over or between items, and if so highlight. */ - gnome_canvas_get_scroll_offsets (GNOME_CANVAS (icon_bar), - &scroll_x, &scroll_y); - item_num = e_icon_bar_find_item_at_position (icon_bar, - x + scroll_x, - y + scroll_y, - &before_item); - e_icon_bar_item_motion (icon_bar, item_num, NULL); - e_icon_bar_set_dragging_before_item (icon_bar, before_item); - - /* Check if the mouse is at the top or bottom of the bar, and if it is - scroll up/down. */ - if (y < E_ICON_BAR_DRAG_AUTO_SCROLL_OFFSET) - icon_bar->scrolling_up = TRUE; - else if (y >= widget->allocation.height - E_ICON_BAR_DRAG_AUTO_SCROLL_OFFSET) - icon_bar->scrolling_up = FALSE; - else { - if (icon_bar->auto_scroll_timeout_id != 0) { - gtk_timeout_remove (icon_bar->auto_scroll_timeout_id); - icon_bar->auto_scroll_timeout_id = 0; - } - return FALSE; - } - - if (icon_bar->auto_scroll_timeout_id == 0) { - icon_bar->auto_scroll_timeout_id = g_timeout_add (E_ICON_BAR_SCROLL_TIMEOUT, e_icon_bar_timeout_handler, icon_bar); - icon_bar->auto_scroll_delay = E_ICON_BAR_SCROLL_DELAY; - } - - return FALSE; -} - - -static void -e_icon_bar_drag_leave (GtkWidget *widget, - GdkDragContext *context, - guint time) -{ - EIconBar *icon_bar; - - g_return_if_fail (E_IS_ICON_BAR (widget)); - - icon_bar = E_ICON_BAR (widget); - - icon_bar->in_drag = FALSE; - - if (icon_bar->auto_scroll_timeout_id != 0) { - gtk_timeout_remove (icon_bar->auto_scroll_timeout_id); - icon_bar->auto_scroll_timeout_id = 0; - } - - if (icon_bar->mouse_over_item_num != -1) { - icon_bar->mouse_over_item_num = -1; - gtk_widget_queue_draw (GTK_WIDGET (icon_bar)); - } -} - - -static void -e_icon_bar_set_dragging_before_item (EIconBar *icon_bar, - gint before_item) -{ - if (icon_bar->dragging_before_item_num == before_item) - return; - - icon_bar->dragging_before_item_num = before_item; - - gtk_widget_queue_draw (GTK_WIDGET (icon_bar)); -} - - -static gboolean -e_icon_bar_timeout_handler (gpointer data) -{ - EIconBar *icon_bar; - gint scroll_x, scroll_y, new_scroll_y; - GtkAdjustment *adj; - - g_return_val_if_fail (E_IS_ICON_BAR (data), FALSE); - - icon_bar = E_ICON_BAR (data); - - GDK_THREADS_ENTER (); - - if (icon_bar->auto_scroll_delay > 0) { - icon_bar->auto_scroll_delay--; - GDK_THREADS_LEAVE (); - return TRUE; - } - - gnome_canvas_get_scroll_offsets (GNOME_CANVAS (icon_bar), - &scroll_x, &scroll_y); - - adj = GTK_LAYOUT (icon_bar)->vadjustment; - - if (icon_bar->scrolling_up) - new_scroll_y = MAX (scroll_y - adj->step_increment, 0); - else - new_scroll_y = MIN (scroll_y + adj->step_increment, - adj->upper - adj->page_size); - - if (new_scroll_y != scroll_y) - gnome_canvas_scroll_to (GNOME_CANVAS (icon_bar), - scroll_x, new_scroll_y); - - GDK_THREADS_LEAVE (); - return TRUE; -} - - -static void -e_icon_bar_vadjustment_value_changed (GtkAdjustment *adjustment, - EIconBar *icon_bar) -{ - e_icon_bar_update_highlight (icon_bar); -} - |