395 lines
11 KiB
C
395 lines
11 KiB
C
/* GTK - The GIMP Toolkit
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* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the Free
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* Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include "gtklabel.h"
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#include "gtklistitem.h"
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#include "gtklist.h"
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static void gtk_list_item_class_init (GtkListItemClass *klass);
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static void gtk_list_item_init (GtkListItem *list_item);
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static void gtk_list_item_realize (GtkWidget *widget);
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static void gtk_list_item_size_request (GtkWidget *widget,
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GtkRequisition *requisition);
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static void gtk_list_item_size_allocate (GtkWidget *widget,
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GtkAllocation *allocation);
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static void gtk_list_item_draw (GtkWidget *widget,
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GdkRectangle *area);
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static void gtk_list_item_draw_focus (GtkWidget *widget);
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static gint gtk_list_item_button_press (GtkWidget *widget,
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GdkEventButton *event);
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static gint gtk_list_item_expose (GtkWidget *widget,
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GdkEventExpose *event);
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static gint gtk_list_item_focus_in (GtkWidget *widget,
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GdkEventFocus *event);
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static gint gtk_list_item_focus_out (GtkWidget *widget,
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GdkEventFocus *event);
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static void gtk_real_list_item_select (GtkItem *item);
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static void gtk_real_list_item_deselect (GtkItem *item);
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static void gtk_real_list_item_toggle (GtkItem *item);
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static GtkItemClass *parent_class = NULL;
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guint
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gtk_list_item_get_type ()
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{
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static guint list_item_type = 0;
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if (!list_item_type)
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{
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GtkTypeInfo list_item_info =
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{
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"GtkListItem",
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sizeof (GtkListItem),
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sizeof (GtkListItemClass),
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(GtkClassInitFunc) gtk_list_item_class_init,
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(GtkObjectInitFunc) gtk_list_item_init,
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(GtkArgFunc) NULL,
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};
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list_item_type = gtk_type_unique (gtk_item_get_type (), &list_item_info);
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}
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return list_item_type;
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}
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static void
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gtk_list_item_class_init (GtkListItemClass *class)
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{
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GtkWidgetClass *widget_class;
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GtkItemClass *item_class;
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widget_class = (GtkWidgetClass*) class;
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item_class = (GtkItemClass*) class;
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parent_class = gtk_type_class (gtk_item_get_type ());
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widget_class->realize = gtk_list_item_realize;
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widget_class->size_request = gtk_list_item_size_request;
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widget_class->size_allocate = gtk_list_item_size_allocate;
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widget_class->draw = gtk_list_item_draw;
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widget_class->draw_focus = gtk_list_item_draw_focus;
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widget_class->button_press_event = gtk_list_item_button_press;
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widget_class->expose_event = gtk_list_item_expose;
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widget_class->focus_in_event = gtk_list_item_focus_in;
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widget_class->focus_out_event = gtk_list_item_focus_out;
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item_class->select = gtk_real_list_item_select;
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item_class->deselect = gtk_real_list_item_deselect;
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item_class->toggle = gtk_real_list_item_toggle;
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}
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static void
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gtk_list_item_init (GtkListItem *list_item)
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{
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GTK_WIDGET_SET_FLAGS (list_item, GTK_CAN_FOCUS);
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}
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GtkWidget*
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gtk_list_item_new ()
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{
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return GTK_WIDGET (gtk_type_new (gtk_list_item_get_type ()));
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}
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GtkWidget*
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gtk_list_item_new_with_label (const gchar *label)
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{
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GtkWidget *list_item;
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GtkWidget *label_widget;
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list_item = gtk_list_item_new ();
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label_widget = gtk_label_new (label);
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gtk_misc_set_alignment (GTK_MISC (label_widget), 0.0, 0.5);
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gtk_container_add (GTK_CONTAINER (list_item), label_widget);
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gtk_widget_show (label_widget);
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return list_item;
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}
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void
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gtk_list_item_select (GtkListItem *list_item)
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{
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gtk_item_select (GTK_ITEM (list_item));
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}
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void
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gtk_list_item_deselect (GtkListItem *list_item)
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{
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gtk_item_deselect (GTK_ITEM (list_item));
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}
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static void
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gtk_list_item_realize (GtkWidget *widget)
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{
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g_return_if_fail (widget != NULL);
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g_return_if_fail (GTK_IS_LIST_ITEM (widget));
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if (GTK_WIDGET_CLASS (parent_class)->realize)
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(* GTK_WIDGET_CLASS (parent_class)->realize) (widget);
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gdk_window_set_background (widget->window, &widget->style->white);
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}
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static void
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gtk_list_item_size_request (GtkWidget *widget,
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GtkRequisition *requisition)
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{
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GtkBin *bin;
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g_return_if_fail (widget != NULL);
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g_return_if_fail (GTK_IS_LIST_ITEM (widget));
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g_return_if_fail (requisition != NULL);
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bin = GTK_BIN (widget);
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requisition->width = (GTK_CONTAINER (widget)->border_width +
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widget->style->klass->xthickness) * 2;
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requisition->height = GTK_CONTAINER (widget)->border_width * 2;
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if (bin->child && GTK_WIDGET_VISIBLE (bin->child))
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{
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gtk_widget_size_request (bin->child, &bin->child->requisition);
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requisition->width += bin->child->requisition.width;
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requisition->height += bin->child->requisition.height;
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}
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}
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static void
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gtk_list_item_size_allocate (GtkWidget *widget,
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GtkAllocation *allocation)
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{
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GtkBin *bin;
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GtkAllocation child_allocation;
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g_return_if_fail (widget != NULL);
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g_return_if_fail (GTK_IS_LIST_ITEM (widget));
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g_return_if_fail (allocation != NULL);
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widget->allocation = *allocation;
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if (GTK_WIDGET_REALIZED (widget))
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gdk_window_move_resize (widget->window,
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allocation->x, allocation->y,
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allocation->width, allocation->height);
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bin = GTK_BIN (widget);
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if (bin->child)
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{
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child_allocation.x = (GTK_CONTAINER (widget)->border_width +
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widget->style->klass->xthickness);
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child_allocation.y = GTK_CONTAINER (widget)->border_width;
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child_allocation.width = allocation->width - child_allocation.x * 2;
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child_allocation.height = allocation->height - child_allocation.y * 2;
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gtk_widget_size_allocate (bin->child, &child_allocation);
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}
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}
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static void
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gtk_list_item_draw (GtkWidget *widget,
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GdkRectangle *area)
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{
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GtkBin *bin;
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GdkRectangle child_area;
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g_return_if_fail (widget != NULL);
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g_return_if_fail (GTK_IS_LIST_ITEM (widget));
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g_return_if_fail (area != NULL);
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if (GTK_WIDGET_DRAWABLE (widget))
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{
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bin = GTK_BIN (widget);
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if (!GTK_WIDGET_IS_SENSITIVE (widget))
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gtk_style_set_background (widget->style, widget->window, GTK_STATE_INSENSITIVE);
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else if (widget->state == GTK_STATE_NORMAL)
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gdk_window_set_background (widget->window, &widget->style->white);
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else
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gtk_style_set_background (widget->style, widget->window, widget->state);
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gdk_window_clear_area (widget->window, area->x, area->y,
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area->width, area->height);
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if (bin->child && gtk_widget_intersect (bin->child, area, &child_area))
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gtk_widget_draw (bin->child, &child_area);
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gtk_widget_draw_focus (widget);
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}
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}
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static void
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gtk_list_item_draw_focus (GtkWidget *widget)
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{
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GdkGC *gc;
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g_return_if_fail (widget != NULL);
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g_return_if_fail (GTK_IS_LIST_ITEM (widget));
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if (GTK_WIDGET_DRAWABLE (widget))
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{
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if (GTK_WIDGET_HAS_FOCUS (widget))
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gc = widget->style->black_gc;
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else if (!GTK_WIDGET_IS_SENSITIVE (widget))
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gc = widget->style->bg_gc[GTK_STATE_INSENSITIVE];
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else if (widget->state == GTK_STATE_NORMAL)
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gc = widget->style->white_gc;
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else
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gc = widget->style->bg_gc[widget->state];
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gdk_draw_rectangle (widget->window, gc, FALSE, 0, 0,
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widget->allocation.width - 1,
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widget->allocation.height - 1);
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}
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}
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static gint
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gtk_list_item_button_press (GtkWidget *widget,
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GdkEventButton *event)
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{
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g_return_val_if_fail (widget != NULL, FALSE);
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g_return_val_if_fail (GTK_IS_LIST_ITEM (widget), FALSE);
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g_return_val_if_fail (event != NULL, FALSE);
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if (event->type == GDK_BUTTON_PRESS)
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if (!GTK_WIDGET_HAS_FOCUS (widget))
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gtk_widget_grab_focus (widget);
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return FALSE;
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}
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static gint
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gtk_list_item_expose (GtkWidget *widget,
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GdkEventExpose *event)
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{
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GtkBin *bin;
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GdkEventExpose child_event;
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g_return_val_if_fail (widget != NULL, FALSE);
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g_return_val_if_fail (GTK_IS_LIST_ITEM (widget), FALSE);
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g_return_val_if_fail (event != NULL, FALSE);
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if (GTK_WIDGET_DRAWABLE (widget))
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{
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bin = GTK_BIN (widget);
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if (!GTK_WIDGET_IS_SENSITIVE (widget))
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gdk_window_set_background (widget->window, &widget->style->bg[GTK_STATE_INSENSITIVE]);
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else if (widget->state == GTK_STATE_NORMAL)
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gdk_window_set_background (widget->window, &widget->style->white);
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else
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gdk_window_set_background (widget->window, &widget->style->bg[widget->state]);
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gdk_window_clear_area (widget->window, event->area.x, event->area.y,
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event->area.width, event->area.height);
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if (bin->child)
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{
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child_event = *event;
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if (GTK_WIDGET_NO_WINDOW (bin->child) &&
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gtk_widget_intersect (bin->child, &event->area, &child_event.area))
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gtk_widget_event (bin->child, (GdkEvent*) &child_event);
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}
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gtk_widget_draw_focus (widget);
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}
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return FALSE;
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}
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static gint
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gtk_list_item_focus_in (GtkWidget *widget,
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GdkEventFocus *event)
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{
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g_return_val_if_fail (widget != NULL, FALSE);
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g_return_val_if_fail (GTK_IS_LIST_ITEM (widget), FALSE);
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g_return_val_if_fail (event != NULL, FALSE);
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GTK_WIDGET_SET_FLAGS (widget, GTK_HAS_FOCUS);
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gtk_widget_draw_focus (widget);
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return FALSE;
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}
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static gint
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gtk_list_item_focus_out (GtkWidget *widget,
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GdkEventFocus *event)
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{
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g_return_val_if_fail (widget != NULL, FALSE);
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g_return_val_if_fail (GTK_IS_LIST_ITEM (widget), FALSE);
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g_return_val_if_fail (event != NULL, FALSE);
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GTK_WIDGET_UNSET_FLAGS (widget, GTK_HAS_FOCUS);
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gtk_widget_draw_focus (widget);
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return FALSE;
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}
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static void
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gtk_real_list_item_select (GtkItem *item)
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{
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g_return_if_fail (item != NULL);
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g_return_if_fail (GTK_IS_LIST_ITEM (item));
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if (GTK_WIDGET (item)->state == GTK_STATE_SELECTED)
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return;
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gtk_widget_set_state (GTK_WIDGET (item), GTK_STATE_SELECTED);
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gtk_widget_queue_draw (GTK_WIDGET (item));
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}
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static void
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gtk_real_list_item_deselect (GtkItem *item)
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{
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g_return_if_fail (item != NULL);
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g_return_if_fail (GTK_IS_LIST_ITEM (item));
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if (GTK_WIDGET (item)->state == GTK_STATE_NORMAL)
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return;
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gtk_widget_set_state (GTK_WIDGET (item), GTK_STATE_NORMAL);
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gtk_widget_queue_draw (GTK_WIDGET (item));
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}
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static void
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gtk_real_list_item_toggle (GtkItem *item)
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{
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g_return_if_fail (item != NULL);
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g_return_if_fail (GTK_IS_LIST_ITEM (item));
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if (GTK_WIDGET (item)->parent && GTK_IS_LIST (GTK_WIDGET (item)->parent))
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gtk_list_select_child (GTK_LIST (GTK_WIDGET (item)->parent),
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GTK_WIDGET (item));
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else
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{
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/* Should we really bother with this bit? A listitem not in a list?
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* -Johannes Keukelaar
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* yes, always be on the save side!
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* -timj
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*/
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if (GTK_WIDGET (item)->state == GTK_STATE_SELECTED)
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gtk_widget_set_state (GTK_WIDGET (item), GTK_STATE_NORMAL);
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else
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gtk_widget_set_state (GTK_WIDGET (item), GTK_STATE_SELECTED);
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gtk_widget_queue_draw (GTK_WIDGET (item));
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}
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}
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