diff options
Diffstat (limited to 'gtk/gtklistitem.c')
| -rw-r--r-- | gtk/gtklistitem.c | 394 |
1 files changed, 394 insertions, 0 deletions
diff --git a/gtk/gtklistitem.c b/gtk/gtklistitem.c new file mode 100644 index 0000000000..6420270259 --- /dev/null +++ b/gtk/gtklistitem.c @@ -0,0 +1,394 @@ +/* GTK - The GIMP Toolkit + * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Library General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library 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 + * Library General Public License for more details. + * + * You should have received a copy of the GNU Library General Public + * License along with this library; if not, write to the Free + * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ +#include "gtklabel.h" +#include "gtklistitem.h" +#include "gtklist.h" + +static void gtk_list_item_class_init (GtkListItemClass *klass); +static void gtk_list_item_init (GtkListItem *list_item); +static void gtk_list_item_realize (GtkWidget *widget); +static void gtk_list_item_size_request (GtkWidget *widget, + GtkRequisition *requisition); +static void gtk_list_item_size_allocate (GtkWidget *widget, + GtkAllocation *allocation); +static void gtk_list_item_draw (GtkWidget *widget, + GdkRectangle *area); +static void gtk_list_item_draw_focus (GtkWidget *widget); +static gint gtk_list_item_button_press (GtkWidget *widget, + GdkEventButton *event); +static gint gtk_list_item_expose (GtkWidget *widget, + GdkEventExpose *event); +static gint gtk_list_item_focus_in (GtkWidget *widget, + GdkEventFocus *event); +static gint gtk_list_item_focus_out (GtkWidget *widget, + GdkEventFocus *event); +static void gtk_real_list_item_select (GtkItem *item); +static void gtk_real_list_item_deselect (GtkItem *item); +static void gtk_real_list_item_toggle (GtkItem *item); + + +static GtkItemClass *parent_class = NULL; + + +guint +gtk_list_item_get_type () +{ + static guint list_item_type = 0; + + if (!list_item_type) + { + GtkTypeInfo list_item_info = + { + "GtkListItem", + sizeof (GtkListItem), + sizeof (GtkListItemClass), + (GtkClassInitFunc) gtk_list_item_class_init, + (GtkObjectInitFunc) gtk_list_item_init, + (GtkArgFunc) NULL, + }; + + list_item_type = gtk_type_unique (gtk_item_get_type (), &list_item_info); + } + + return list_item_type; +} + +static void +gtk_list_item_class_init (GtkListItemClass *class) +{ + GtkWidgetClass *widget_class; + GtkItemClass *item_class; + + widget_class = (GtkWidgetClass*) class; + item_class = (GtkItemClass*) class; + + parent_class = gtk_type_class (gtk_item_get_type ()); + + widget_class->realize = gtk_list_item_realize; + widget_class->size_request = gtk_list_item_size_request; + widget_class->size_allocate = gtk_list_item_size_allocate; + widget_class->draw = gtk_list_item_draw; + widget_class->draw_focus = gtk_list_item_draw_focus; + widget_class->button_press_event = gtk_list_item_button_press; + widget_class->expose_event = gtk_list_item_expose; + widget_class->focus_in_event = gtk_list_item_focus_in; + widget_class->focus_out_event = gtk_list_item_focus_out; + + item_class->select = gtk_real_list_item_select; + item_class->deselect = gtk_real_list_item_deselect; + item_class->toggle = gtk_real_list_item_toggle; +} + +static void +gtk_list_item_init (GtkListItem *list_item) +{ + GTK_WIDGET_SET_FLAGS (list_item, GTK_CAN_FOCUS); +} + +GtkWidget* +gtk_list_item_new () +{ + return GTK_WIDGET (gtk_type_new (gtk_list_item_get_type ())); +} + +GtkWidget* +gtk_list_item_new_with_label (const gchar *label) +{ + GtkWidget *list_item; + GtkWidget *label_widget; + + list_item = gtk_list_item_new (); + label_widget = gtk_label_new (label); + gtk_misc_set_alignment (GTK_MISC (label_widget), 0.0, 0.5); + + gtk_container_add (GTK_CONTAINER (list_item), label_widget); + gtk_widget_show (label_widget); + + return list_item; +} + +void +gtk_list_item_select (GtkListItem *list_item) +{ + gtk_item_select (GTK_ITEM (list_item)); +} + +void +gtk_list_item_deselect (GtkListItem *list_item) +{ + gtk_item_deselect (GTK_ITEM (list_item)); +} + + +static void +gtk_list_item_realize (GtkWidget *widget) +{ + g_return_if_fail (widget != NULL); + g_return_if_fail (GTK_IS_LIST_ITEM (widget)); + + if (GTK_WIDGET_CLASS (parent_class)->realize) + (* GTK_WIDGET_CLASS (parent_class)->realize) (widget); + + gdk_window_set_background (widget->window, &widget->style->white); +} + +static void +gtk_list_item_size_request (GtkWidget *widget, + GtkRequisition *requisition) +{ + GtkBin *bin; + + g_return_if_fail (widget != NULL); + g_return_if_fail (GTK_IS_LIST_ITEM (widget)); + g_return_if_fail (requisition != NULL); + + bin = GTK_BIN (widget); + + requisition->width = (GTK_CONTAINER (widget)->border_width + + widget->style->klass->xthickness) * 2; + requisition->height = GTK_CONTAINER (widget)->border_width * 2; + + if (bin->child && GTK_WIDGET_VISIBLE (bin->child)) + { + gtk_widget_size_request (bin->child, &bin->child->requisition); + + requisition->width += bin->child->requisition.width; + requisition->height += bin->child->requisition.height; + } +} + +static void +gtk_list_item_size_allocate (GtkWidget *widget, + GtkAllocation *allocation) +{ + GtkBin *bin; + GtkAllocation child_allocation; + + g_return_if_fail (widget != NULL); + g_return_if_fail (GTK_IS_LIST_ITEM (widget)); + g_return_if_fail (allocation != NULL); + + widget->allocation = *allocation; + if (GTK_WIDGET_REALIZED (widget)) + gdk_window_move_resize (widget->window, + allocation->x, allocation->y, + allocation->width, allocation->height); + + bin = GTK_BIN (widget); + + if (bin->child) + { + child_allocation.x = (GTK_CONTAINER (widget)->border_width + + widget->style->klass->xthickness); + child_allocation.y = GTK_CONTAINER (widget)->border_width; + child_allocation.width = allocation->width - child_allocation.x * 2; + child_allocation.height = allocation->height - child_allocation.y * 2; + + gtk_widget_size_allocate (bin->child, &child_allocation); + } +} + +static void +gtk_list_item_draw (GtkWidget *widget, + GdkRectangle *area) +{ + GtkBin *bin; + GdkRectangle child_area; + + g_return_if_fail (widget != NULL); + g_return_if_fail (GTK_IS_LIST_ITEM (widget)); + g_return_if_fail (area != NULL); + + if (GTK_WIDGET_DRAWABLE (widget)) + { + bin = GTK_BIN (widget); + + if (!GTK_WIDGET_IS_SENSITIVE (widget)) + gtk_style_set_background (widget->style, widget->window, GTK_STATE_INSENSITIVE); + else if (widget->state == GTK_STATE_NORMAL) + gdk_window_set_background (widget->window, &widget->style->white); + else + gtk_style_set_background (widget->style, widget->window, widget->state); + + gdk_window_clear_area (widget->window, area->x, area->y, + area->width, area->height); + + if (bin->child && gtk_widget_intersect (bin->child, area, &child_area)) + gtk_widget_draw (bin->child, &child_area); + + gtk_widget_draw_focus (widget); + } +} + +static void +gtk_list_item_draw_focus (GtkWidget *widget) +{ + GdkGC *gc; + + g_return_if_fail (widget != NULL); + g_return_if_fail (GTK_IS_LIST_ITEM (widget)); + + if (GTK_WIDGET_DRAWABLE (widget)) + { + if (GTK_WIDGET_HAS_FOCUS (widget)) + gc = widget->style->black_gc; + else if (!GTK_WIDGET_IS_SENSITIVE (widget)) + gc = widget->style->bg_gc[GTK_STATE_INSENSITIVE]; + else if (widget->state == GTK_STATE_NORMAL) + gc = widget->style->white_gc; + else + gc = widget->style->bg_gc[widget->state]; + + gdk_draw_rectangle (widget->window, gc, FALSE, 0, 0, + widget->allocation.width - 1, + widget->allocation.height - 1); + } +} + +static gint +gtk_list_item_button_press (GtkWidget *widget, + GdkEventButton *event) +{ + g_return_val_if_fail (widget != NULL, FALSE); + g_return_val_if_fail (GTK_IS_LIST_ITEM (widget), FALSE); + g_return_val_if_fail (event != NULL, FALSE); + + if (event->type == GDK_BUTTON_PRESS) + if (!GTK_WIDGET_HAS_FOCUS (widget)) + gtk_widget_grab_focus (widget); + + return FALSE; +} + +static gint +gtk_list_item_expose (GtkWidget *widget, + GdkEventExpose *event) +{ + GtkBin *bin; + GdkEventExpose child_event; + + g_return_val_if_fail (widget != NULL, FALSE); + g_return_val_if_fail (GTK_IS_LIST_ITEM (widget), FALSE); + g_return_val_if_fail (event != NULL, FALSE); + + if (GTK_WIDGET_DRAWABLE (widget)) + { + bin = GTK_BIN (widget); + + if (!GTK_WIDGET_IS_SENSITIVE (widget)) + gdk_window_set_background (widget->window, &widget->style->bg[GTK_STATE_INSENSITIVE]); + else if (widget->state == GTK_STATE_NORMAL) + gdk_window_set_background (widget->window, &widget->style->white); + else + gdk_window_set_background (widget->window, &widget->style->bg[widget->state]); + + gdk_window_clear_area (widget->window, event->area.x, event->area.y, + event->area.width, event->area.height); + + if (bin->child) + { + child_event = *event; + + if (GTK_WIDGET_NO_WINDOW (bin->child) && + gtk_widget_intersect (bin->child, &event->area, &child_event.area)) + gtk_widget_event (bin->child, (GdkEvent*) &child_event); + } + + gtk_widget_draw_focus (widget); + } + + return FALSE; +} + +static gint +gtk_list_item_focus_in (GtkWidget *widget, + GdkEventFocus *event) +{ + g_return_val_if_fail (widget != NULL, FALSE); + g_return_val_if_fail (GTK_IS_LIST_ITEM (widget), FALSE); + g_return_val_if_fail (event != NULL, FALSE); + + GTK_WIDGET_SET_FLAGS (widget, GTK_HAS_FOCUS); + gtk_widget_draw_focus (widget); + + return FALSE; +} + +static gint +gtk_list_item_focus_out (GtkWidget *widget, + GdkEventFocus *event) +{ + g_return_val_if_fail (widget != NULL, FALSE); + g_return_val_if_fail (GTK_IS_LIST_ITEM (widget), FALSE); + g_return_val_if_fail (event != NULL, FALSE); + + GTK_WIDGET_UNSET_FLAGS (widget, GTK_HAS_FOCUS); + gtk_widget_draw_focus (widget); + + return FALSE; +} + +static void +gtk_real_list_item_select (GtkItem *item) +{ + g_return_if_fail (item != NULL); + g_return_if_fail (GTK_IS_LIST_ITEM (item)); + + if (GTK_WIDGET (item)->state == GTK_STATE_SELECTED) + return; + + gtk_widget_set_state (GTK_WIDGET (item), GTK_STATE_SELECTED); + gtk_widget_queue_draw (GTK_WIDGET (item)); +} + +static void +gtk_real_list_item_deselect (GtkItem *item) +{ + g_return_if_fail (item != NULL); + g_return_if_fail (GTK_IS_LIST_ITEM (item)); + + if (GTK_WIDGET (item)->state == GTK_STATE_NORMAL) + return; + + gtk_widget_set_state (GTK_WIDGET (item), GTK_STATE_NORMAL); + gtk_widget_queue_draw (GTK_WIDGET (item)); +} + +static void +gtk_real_list_item_toggle (GtkItem *item) +{ + g_return_if_fail (item != NULL); + g_return_if_fail (GTK_IS_LIST_ITEM (item)); + + if (GTK_WIDGET (item)->parent && GTK_IS_LIST (GTK_WIDGET (item)->parent)) + gtk_list_select_child (GTK_LIST (GTK_WIDGET (item)->parent), + GTK_WIDGET (item)); + else + { + /* Should we really bother with this bit? A listitem not in a list? + * -Johannes Keukelaar + * yes, always be on the save side! + * -timj + */ + if (GTK_WIDGET (item)->state == GTK_STATE_SELECTED) + gtk_widget_set_state (GTK_WIDGET (item), GTK_STATE_NORMAL); + else + gtk_widget_set_state (GTK_WIDGET (item), GTK_STATE_SELECTED); + gtk_widget_queue_draw (GTK_WIDGET (item)); + } +} |