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9c5d32799d87112de1234a05ab5b026b3755d212
gtk3/gtk/gtknotebook.c
Owen Taylor d30343b9d9 gdk/gdkgc.c: If gdk_gc_set_clip_rectangle is called with 
rectangle = NULL, remove clip mask, instead of segfaulting.
gtk/gtknotebook.c: Set clip mask before redrawing, so that
  we don't overwrite things outside of exposed areas when
  drawing the shadows. (Based on a patch from
  Lars Hamann <hamann@braunschweig.netsurf.de> and Stefan Jeske)

                                        -owt
1997-12-12 20:03:48 +00:00

1340 lines
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/* 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 "gtknotebook.h"
#define CHILD_SPACING 2
#define TAB_OVERLAP 2
#define TAB_CURVATURE 1
static void gtk_notebook_class_init (GtkNotebookClass *klass);
static void gtk_notebook_init (GtkNotebook *notebook);
static void gtk_notebook_destroy (GtkObject *object);
static void gtk_notebook_map (GtkWidget *widget);
static void gtk_notebook_unmap (GtkWidget *widget);
static void gtk_notebook_realize (GtkWidget *widget);
static void gtk_notebook_unrealize (GtkWidget *widget);
static void gtk_notebook_size_request (GtkWidget *widget,
GtkRequisition *requisition);
static void gtk_notebook_size_allocate (GtkWidget *widget,
GtkAllocation *allocation);
static void gtk_notebook_paint (GtkWidget *widget,
GdkRectangle *area);
static void gtk_notebook_draw (GtkWidget *widget,
GdkRectangle *area);
static gint gtk_notebook_expose (GtkWidget *widget,
GdkEventExpose *event);
static gint gtk_notebook_button_press (GtkWidget *widget,
GdkEventButton *event);
static void gtk_notebook_add (GtkContainer *container,
GtkWidget *widget);
static void gtk_notebook_remove (GtkContainer *container,
GtkWidget *widget);
static void gtk_notebook_foreach (GtkContainer *container,
GtkCallback callback,
gpointer callback_data);
static void gtk_notebook_switch_page (GtkNotebook *notebook,
GtkNotebookPage *page);
static void gtk_notebook_set_clip_rect (GtkNotebook *notebook,
GtkStateType state_type,
GdkRectangle *area);
static void gtk_notebook_draw_tab (GtkNotebook *notebook,
GtkNotebookPage *page,
GdkRectangle *area);
static void gtk_notebook_pages_allocate (GtkNotebook *notebook,
GtkAllocation *allocation);
static void gtk_notebook_page_allocate (GtkNotebook *notebook,
GtkNotebookPage *page,
GtkAllocation *allocation);
static GtkContainerClass *parent_class = NULL;
guint
gtk_notebook_get_type ()
{
static guint notebook_type = 0;
if (!notebook_type)
{
GtkTypeInfo notebook_info =
{
"GtkNotebook",
sizeof (GtkNotebook),
sizeof (GtkNotebookClass),
(GtkClassInitFunc) gtk_notebook_class_init,
(GtkObjectInitFunc) gtk_notebook_init,
(GtkArgFunc) NULL,
};
notebook_type = gtk_type_unique (gtk_container_get_type (), &notebook_info);
}
return notebook_type;
}
static void
gtk_notebook_class_init (GtkNotebookClass *class)
{
GtkObjectClass *object_class;
GtkWidgetClass *widget_class;
GtkContainerClass *container_class;
object_class = (GtkObjectClass*) class;
widget_class = (GtkWidgetClass*) class;
container_class = (GtkContainerClass*) class;
parent_class = gtk_type_class (gtk_container_get_type ());
object_class->destroy = gtk_notebook_destroy;
widget_class->map = gtk_notebook_map;
widget_class->unmap = gtk_notebook_unmap;
widget_class->realize = gtk_notebook_realize;
widget_class->unrealize = gtk_notebook_unrealize;
widget_class->size_request = gtk_notebook_size_request;
widget_class->size_allocate = gtk_notebook_size_allocate;
widget_class->draw = gtk_notebook_draw;
widget_class->expose_event = gtk_notebook_expose;
widget_class->button_press_event = gtk_notebook_button_press;
container_class->add = gtk_notebook_add;
container_class->remove = gtk_notebook_remove;
container_class->foreach = gtk_notebook_foreach;
}
static void
gtk_notebook_init (GtkNotebook *notebook)
{
notebook->cur_page = NULL;
notebook->children = NULL;
notebook->show_tabs = TRUE;
notebook->show_border = TRUE;
notebook->tab_pos = GTK_POS_TOP;
}
GtkWidget*
gtk_notebook_new ()
{
return GTK_WIDGET (gtk_type_new (gtk_notebook_get_type ()));
}
void
gtk_notebook_append_page (GtkNotebook *notebook,
GtkWidget *child,
GtkWidget *tab_label)
{
g_return_if_fail (notebook != NULL);
g_return_if_fail (GTK_IS_NOTEBOOK (notebook));
g_return_if_fail (child != NULL);
g_return_if_fail (tab_label != NULL);
gtk_notebook_insert_page (notebook, child, tab_label, -1);
}
void
gtk_notebook_prepend_page (GtkNotebook *notebook,
GtkWidget *child,
GtkWidget *tab_label)
{
g_return_if_fail (notebook != NULL);
g_return_if_fail (GTK_IS_NOTEBOOK (notebook));
g_return_if_fail (child != NULL);
g_return_if_fail (tab_label != NULL);
gtk_notebook_insert_page (notebook, child, tab_label, 0);
}
void
gtk_notebook_insert_page (GtkNotebook *notebook,
GtkWidget *child,
GtkWidget *tab_label,
gint position)
{
GtkNotebookPage *page;
gint nchildren;
g_return_if_fail (notebook != NULL);
g_return_if_fail (GTK_IS_NOTEBOOK (notebook));
g_return_if_fail (child != NULL);
g_return_if_fail (tab_label != NULL);
page = g_new (GtkNotebookPage, 1);
page->child = child;
page->tab_label = tab_label;
page->requisition.width = 0;
page->requisition.height = 0;
page->allocation.x = 0;
page->allocation.y = 0;
page->allocation.width = 0;
page->allocation.height = 0;
nchildren = g_list_length (notebook->children);
if ((position < 0) || (position > nchildren))
position = nchildren;
notebook->children = g_list_insert (notebook->children, page, position);
if (!notebook->cur_page)
notebook->cur_page = page;
gtk_widget_show (tab_label);
gtk_widget_set_parent (child, GTK_WIDGET (notebook));
gtk_widget_set_parent (tab_label, GTK_WIDGET (notebook));
if (GTK_WIDGET_VISIBLE (notebook))
{
if (GTK_WIDGET_REALIZED (notebook) &&
!GTK_WIDGET_REALIZED (child))
gtk_widget_realize (child);
if (GTK_WIDGET_MAPPED (notebook) &&
!GTK_WIDGET_MAPPED (child) && notebook->cur_page == page)
gtk_widget_map (child);
if (GTK_WIDGET_REALIZED (notebook) &&
!GTK_WIDGET_REALIZED (tab_label))
gtk_widget_realize (tab_label);
if (GTK_WIDGET_MAPPED (notebook) &&
!GTK_WIDGET_MAPPED (tab_label))
gtk_widget_map (tab_label);
}
if (GTK_WIDGET_VISIBLE (child) && GTK_WIDGET_VISIBLE (notebook))
gtk_widget_queue_resize (child);
}
void
gtk_notebook_remove_page (GtkNotebook *notebook,
gint page_num)
{
GtkNotebookPage *page;
GList *tmp_list;
g_return_if_fail (notebook != NULL);
g_return_if_fail (GTK_IS_NOTEBOOK (notebook));
tmp_list = g_list_nth (notebook->children, page_num);
if (tmp_list)
{
page = tmp_list->data;
if (notebook->cur_page == page)
gtk_notebook_prev_page (notebook);
if (notebook->cur_page == page)
notebook->cur_page = NULL;
notebook->children = g_list_remove_link (notebook->children, tmp_list);
g_list_free (tmp_list);
g_free (page);
}
}
gint
gtk_notebook_current_page (GtkNotebook *notebook)
{
GList *children;
gint cur_page;
g_return_val_if_fail (notebook != NULL, -1);
g_return_val_if_fail (GTK_IS_NOTEBOOK (notebook), -1);
if (notebook->cur_page)
{
cur_page = 0;
children = notebook->children;
while (children)
{
if (children->data == notebook->cur_page)
break;
children = children->next;
cur_page += 1;
}
if (!children)
cur_page = -1;
}
else
{
cur_page = -1;
}
return cur_page;
}
void
gtk_notebook_set_page (GtkNotebook *notebook,
gint page_num)
{
GtkNotebookPage *page;
GList *tmp_list;
g_return_if_fail (notebook != NULL);
g_return_if_fail (GTK_IS_NOTEBOOK (notebook));
tmp_list = g_list_nth (notebook->children, page_num);
if (tmp_list)
{
page = tmp_list->data;
gtk_notebook_switch_page (notebook, page);
}
}
void
gtk_notebook_next_page (GtkNotebook *notebook)
{
GtkNotebookPage *page;
GList *children;
g_return_if_fail (notebook != NULL);
g_return_if_fail (GTK_IS_NOTEBOOK (notebook));
children = notebook->children;
while (children)
{
page = children->data;
if (notebook->cur_page == page)
{
children = children->next;
if (!children)
children = notebook->children;
page = children->data;
gtk_notebook_switch_page (notebook, page);
}
children = children->next;
}
}
void
gtk_notebook_prev_page (GtkNotebook *notebook)
{
GtkNotebookPage *page;
GList *children;
g_return_if_fail (notebook != NULL);
g_return_if_fail (GTK_IS_NOTEBOOK (notebook));
children = notebook->children;
while (children)
{
page = children->data;
if (notebook->cur_page == page)
{
children = children->prev;
if (!children)
children = g_list_last (notebook->children);
page = children->data;
gtk_notebook_switch_page (notebook, page);
}
children = children->next;
}
}
void
gtk_notebook_set_tab_pos (GtkNotebook *notebook,
GtkPositionType pos)
{
g_return_if_fail (notebook != NULL);
g_return_if_fail (GTK_IS_NOTEBOOK (notebook));
if (notebook->tab_pos != pos)
{
notebook->tab_pos = pos;
if (GTK_WIDGET_VISIBLE (notebook))
gtk_widget_queue_resize (GTK_WIDGET (notebook));
}
}
void
gtk_notebook_set_show_tabs (GtkNotebook *notebook,
gint show_tabs)
{
g_return_if_fail (notebook != NULL);
g_return_if_fail (GTK_IS_NOTEBOOK (notebook));
if (notebook->show_tabs != show_tabs)
{
notebook->show_tabs = show_tabs;
if (GTK_WIDGET_VISIBLE (notebook))
gtk_widget_queue_resize (GTK_WIDGET (notebook));
}
}
void
gtk_notebook_set_show_border (GtkNotebook *notebook,
gint show_border)
{
g_return_if_fail (notebook != NULL);
g_return_if_fail (GTK_IS_NOTEBOOK (notebook));
if (notebook->show_border != show_border)
{
notebook->show_border = show_border;
if (GTK_WIDGET_VISIBLE (notebook))
gtk_widget_queue_resize (GTK_WIDGET (notebook));
}
}
static void
gtk_notebook_destroy (GtkObject *object)
{
GtkNotebook *notebook;
GtkNotebookPage *page;
GList *children;
g_return_if_fail (object != NULL);
g_return_if_fail (GTK_IS_NOTEBOOK (object));
notebook = GTK_NOTEBOOK (object);
children = notebook->children;
while (children)
{
page = children->data;
children = children->next;
page->child->parent = NULL;
page->tab_label->parent = NULL;
gtk_object_unref (GTK_OBJECT (page->child));
gtk_object_unref (GTK_OBJECT (page->tab_label));
gtk_widget_destroy (page->child);
gtk_widget_destroy (page->tab_label);
g_free (page);
}
g_list_free (notebook->children);
if (GTK_OBJECT_CLASS (parent_class)->destroy)
(* GTK_OBJECT_CLASS (parent_class)->destroy) (object);
}
static void
gtk_notebook_map (GtkWidget *widget)
{
GtkNotebook *notebook;
GtkNotebookPage *page;
GList *children;
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_NOTEBOOK (widget));
GTK_WIDGET_SET_FLAGS (widget, GTK_MAPPED);
gdk_window_show (widget->window);
notebook = GTK_NOTEBOOK (widget);
if (notebook->cur_page &&
GTK_WIDGET_VISIBLE (notebook->cur_page->child) &&
!GTK_WIDGET_MAPPED (notebook->cur_page->child))
gtk_widget_map (notebook->cur_page->child);
children = notebook->children;
while (children)
{
page = children->data;
children = children->next;
if (GTK_WIDGET_VISIBLE (page->child) &&
!GTK_WIDGET_MAPPED (page->tab_label))
gtk_widget_map (page->tab_label);
}
}
static void
gtk_notebook_unmap (GtkWidget *widget)
{
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_NOTEBOOK (widget));
GTK_WIDGET_UNSET_FLAGS (widget, GTK_MAPPED);
gdk_window_hide (widget->window);
}
static void
gtk_notebook_realize (GtkWidget *widget)
{
GtkNotebook *notebook;
GdkWindowAttr attributes;
gint attributes_mask;
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_NOTEBOOK (widget));
notebook = GTK_NOTEBOOK (widget);
GTK_WIDGET_SET_FLAGS (notebook, GTK_REALIZED);
attributes.window_type = GDK_WINDOW_CHILD;
attributes.x = widget->allocation.x;
attributes.y = widget->allocation.y;
attributes.width = widget->allocation.width;
attributes.height = widget->allocation.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 | GDK_BUTTON_PRESS_MASK;
attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
widget->window = gdk_window_new (widget->parent->window, &attributes, attributes_mask);
gdk_window_set_user_data (widget->window, notebook);
widget->style = gtk_style_attach (widget->style, widget->window);
gtk_style_set_background (widget->style, widget->window, GTK_STATE_NORMAL);
}
static void
gtk_notebook_unrealize (GtkWidget *widget)
{
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_NOTEBOOK (widget));
GTK_WIDGET_UNSET_FLAGS (widget, GTK_REALIZED | GTK_MAPPED);
gtk_style_detach (widget->style);
gdk_window_destroy (widget->window);
widget->window = NULL;
}
static void
gtk_notebook_size_request (GtkWidget *widget,
GtkRequisition *requisition)
{
GtkNotebook *notebook;
GtkNotebookPage *page;
GList *children;
gint tab_width;
gint tab_height;
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_NOTEBOOK (widget));
g_return_if_fail (requisition != NULL);
notebook = GTK_NOTEBOOK (widget);
widget->requisition.width = 0;
widget->requisition.height = 0;
children = notebook->children;
while (children)
{
page = children->data;
children = children->next;
if (GTK_WIDGET_VISIBLE (page->child))
{
gtk_widget_size_request (page->child, &page->child->requisition);
widget->requisition.width = MAX (widget->requisition.width,
page->child->requisition.width);
widget->requisition.height = MAX (widget->requisition.height,
page->child->requisition.height);
}
}
widget->requisition.width += GTK_CONTAINER (widget)->border_width * 2;
widget->requisition.height += GTK_CONTAINER (widget)->border_width * 2;
if (notebook->show_tabs)
{
widget->requisition.width += GTK_WIDGET (widget)->style->klass->xthickness * 2;
widget->requisition.height += GTK_WIDGET (widget)->style->klass->ythickness * 2;
tab_width = 0;
tab_height = 0;
children = notebook->children;
while (children)
{
page = children->data;
children = children->next;
if (GTK_WIDGET_VISIBLE (page->child))
{
gtk_widget_size_request (page->tab_label, &page->tab_label->requisition);
page->requisition.width = (page->tab_label->requisition.width +
(GTK_WIDGET (widget)->style->klass->xthickness +
CHILD_SPACING) * 2);
page->requisition.height = (page->tab_label->requisition.height +
(GTK_WIDGET (widget)->style->klass->ythickness +
CHILD_SPACING) * 2);
switch (notebook->tab_pos)
{
case GTK_POS_TOP:
case GTK_POS_BOTTOM:
page->requisition.width -= TAB_OVERLAP;
page->requisition.height -= GTK_WIDGET (widget)->style->klass->ythickness;
tab_width += page->requisition.width;
tab_height = MAX (tab_height, page->requisition.height);
break;
case GTK_POS_LEFT:
case GTK_POS_RIGHT:
page->requisition.width -= GTK_WIDGET (widget)->style->klass->xthickness;
page->requisition.height -= TAB_OVERLAP;
tab_width = MAX (tab_width, page->requisition.width);
tab_height += page->requisition.height;
break;
}
}
}
children = notebook->children;
while (children)
{
page = children->data;
children = children->next;
if (GTK_WIDGET_VISIBLE (page->child))
{
if ((notebook->tab_pos == GTK_POS_TOP) ||
(notebook->tab_pos == GTK_POS_BOTTOM))
page->requisition.height = tab_height;
else
page->requisition.width = tab_width;
}
}
switch (notebook->tab_pos)
{
case GTK_POS_TOP:
case GTK_POS_BOTTOM:
tab_width += GTK_WIDGET (widget)->style->klass->xthickness;
widget->requisition.width = MAX (widget->requisition.width, tab_width);
widget->requisition.height += tab_height;
break;
case GTK_POS_LEFT:
case GTK_POS_RIGHT:
tab_height += GTK_WIDGET (widget)->style->klass->ythickness;
widget->requisition.width += tab_width;
widget->requisition.height = MAX (widget->requisition.height, tab_height);
break;
}
}
else if (notebook->show_border)
{
widget->requisition.width += GTK_WIDGET (widget)->style->klass->xthickness * 2;
widget->requisition.height += GTK_WIDGET (widget)->style->klass->ythickness * 2;
}
}
static void
gtk_notebook_size_allocate (GtkWidget *widget,
GtkAllocation *allocation)
{
GtkNotebook *notebook;
GtkNotebookPage *page;
GtkAllocation child_allocation;
GList *children;
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_NOTEBOOK (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);
notebook = GTK_NOTEBOOK (widget);
if (notebook->children)
{
child_allocation.x = GTK_CONTAINER (widget)->border_width;
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;
if (notebook->show_tabs || notebook->show_border)
{
child_allocation.x += GTK_WIDGET (widget)->style->klass->xthickness;
child_allocation.y += GTK_WIDGET (widget)->style->klass->ythickness;
child_allocation.width -= GTK_WIDGET (widget)->style->klass->xthickness * 2;
child_allocation.height -= GTK_WIDGET (widget)->style->klass->ythickness * 2;
if (notebook->show_tabs && notebook->children)
{
switch (notebook->tab_pos)
{
case GTK_POS_TOP:
child_allocation.y += notebook->cur_page->requisition.height;
case GTK_POS_BOTTOM:
child_allocation.height -= notebook->cur_page->requisition.height;
break;
case GTK_POS_LEFT:
child_allocation.x += notebook->cur_page->requisition.width;
case GTK_POS_RIGHT:
child_allocation.width -= notebook->cur_page->requisition.width;
break;
}
}
}
children = notebook->children;
while (children)
{
page = children->data;
children = children->next;
if (GTK_WIDGET_VISIBLE (page->child))
gtk_widget_size_allocate (page->child, &child_allocation);
}
if (notebook->show_tabs && notebook->children)
gtk_notebook_pages_allocate (notebook, allocation);
}
}
static void
gtk_notebook_paint (GtkWidget *widget,
GdkRectangle *area)
{
GtkNotebook *notebook;
GtkNotebookPage *page;
GList *children;
GdkPoint points[6];
gint width, height;
gint x, y;
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_NOTEBOOK (widget));
g_return_if_fail (area != NULL);
if (GTK_WIDGET_DRAWABLE (widget))
{
notebook = GTK_NOTEBOOK (widget);
/* Set the clip rectangle here, so we don't overwrite things
* outside of exposed area when drawing shadows */
gtk_notebook_set_clip_rect (notebook, GTK_STATE_ACTIVE, area);
gtk_notebook_set_clip_rect (notebook, GTK_STATE_NORMAL, area);
gdk_window_clear_area (widget->window,
area->x, area->y,
area->width, area->height);
if (notebook->show_tabs || notebook->show_border)
{
x = GTK_CONTAINER (widget)->border_width;
y = GTK_CONTAINER (widget)->border_width;
width = widget->allocation.width - x * 2;
height = widget->allocation.height - y * 2;
if (notebook->show_tabs && notebook->children)
{
switch (notebook->tab_pos)
{
case GTK_POS_TOP:
y += notebook->cur_page->allocation.height;
case GTK_POS_BOTTOM:
height -= notebook->cur_page->allocation.height;
break;
case GTK_POS_LEFT:
x += notebook->cur_page->allocation.width;
case GTK_POS_RIGHT:
width -= notebook->cur_page->allocation.width;
break;
}
switch (notebook->tab_pos)
{
case GTK_POS_TOP:
points[0].x = notebook->cur_page->allocation.x;
points[0].y = y;
points[1].x = x;
points[1].y = y;
points[2].x = x;
points[2].y = y + height - 1;
points[3].x = x + width - 1;
points[3].y = y + height - 1;
points[4].x = x + width - 1;
points[4].y = y;
points[5].x = (notebook->cur_page->allocation.x +
notebook->cur_page->allocation.width -
GTK_WIDGET (notebook)->style->klass->xthickness);
points[5].y = y;
if (points[5].x == (x + width))
points[5].x -= 1;
break;
case GTK_POS_BOTTOM:
points[0].x = (notebook->cur_page->allocation.x +
notebook->cur_page->allocation.width -
GTK_WIDGET (notebook)->style->klass->xthickness);
points[0].y = y + height - 1;
points[1].x = x + width - 1;
points[1].y = y + height - 1;
points[2].x = x + width - 1;
points[2].y = y;
points[3].x = x;
points[3].y = y;
points[4].x = x;
points[4].y = y + height - 1;
points[5].x = notebook->cur_page->allocation.x;
points[5].y = y + height - 1;
if (points[0].x == (x + width))
points[0].x -= 1;
break;
case GTK_POS_LEFT:
points[0].x = x;
points[0].y = (notebook->cur_page->allocation.y +
notebook->cur_page->allocation.height -
GTK_WIDGET (notebook)->style->klass->ythickness);
points[1].x = x;
points[1].y = y + height - 1;
points[2].x = x + width - 1;
points[2].y = y + height - 1;
points[3].x = x + width - 1;
points[3].y = y;
points[4].x = x;
points[4].y = y;
points[5].x = x;
points[5].y = notebook->cur_page->allocation.y;
if (points[0].y == (y + height))
points[0].y -= 1;
break;
case GTK_POS_RIGHT:
points[0].x = x + width - 1;
points[0].y = notebook->cur_page->allocation.y;
points[1].x = x + width - 1;
points[1].y = y;
points[2].x = x;
points[2].y = y;
points[3].x = x;
points[3].y = y + height - 1;
points[4].x = x + width - 1;
points[4].y = y + height - 1;
points[5].x = x + width - 1;
points[5].y = (notebook->cur_page->allocation.y +
notebook->cur_page->allocation.height -
GTK_WIDGET (notebook)->style->klass->ythickness);
if (points[5].y == (y + height))
points[5].y -= 1;
break;
}
gtk_draw_polygon (widget->style, widget->window,
GTK_STATE_NORMAL, GTK_SHADOW_OUT,
points, 6, FALSE);
children = g_list_last (notebook->children);
while (children)
{
page = children->data;
children = children->prev;
if (notebook->cur_page != page)
gtk_notebook_draw_tab (notebook, page, area);
}
if (notebook->cur_page)
gtk_notebook_draw_tab (notebook, notebook->cur_page, area);
}
else if (notebook->show_border)
{
gtk_draw_shadow (widget->style, widget->window,
GTK_STATE_NORMAL, GTK_SHADOW_OUT,
x, y, width, height);
}
}
gtk_notebook_set_clip_rect (notebook, GTK_STATE_ACTIVE, NULL);
gtk_notebook_set_clip_rect (notebook, GTK_STATE_NORMAL, NULL);
}
}
static void
gtk_notebook_draw (GtkWidget *widget,
GdkRectangle *area)
{
GtkNotebook *notebook;
GdkRectangle child_area;
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_NOTEBOOK (widget));
g_return_if_fail (area != NULL);
if (GTK_WIDGET_DRAWABLE (widget))
{
notebook = GTK_NOTEBOOK (widget);
gtk_notebook_paint (widget, area);
if (notebook->cur_page &&
gtk_widget_intersect (notebook->cur_page->child, area, &child_area))
gtk_widget_draw (notebook->cur_page->child, &child_area);
}
}
static gint
gtk_notebook_expose (GtkWidget *widget,
GdkEventExpose *event)
{
GtkNotebook *notebook;
GdkEventExpose child_event;
g_return_val_if_fail (widget != NULL, FALSE);
g_return_val_if_fail (GTK_IS_NOTEBOOK (widget), FALSE);
g_return_val_if_fail (event != NULL, FALSE);
if (GTK_WIDGET_DRAWABLE (widget))
{
notebook = GTK_NOTEBOOK (widget);
gtk_notebook_paint (widget, &event->area);
child_event = *event;
if (notebook->cur_page && GTK_WIDGET_NO_WINDOW (notebook->cur_page->child) &&
gtk_widget_intersect (notebook->cur_page->child, &event->area, &child_event.area))
gtk_widget_event (notebook->cur_page->child, (GdkEvent*) &child_event);
}
return FALSE;
}
static gint
gtk_notebook_button_press (GtkWidget *widget,
GdkEventButton *event)
{
GtkNotebook *notebook;
GtkNotebookPage *page;
GList *children;
g_return_val_if_fail (widget != NULL, FALSE);
g_return_val_if_fail (GTK_IS_NOTEBOOK (widget), FALSE);
g_return_val_if_fail (event != NULL, FALSE);
if ((event->type != GDK_BUTTON_PRESS) ||
(event->window != widget->window))
return FALSE;
notebook = GTK_NOTEBOOK (widget);
children = notebook->children;
while (children)
{
page = children->data;
if (GTK_WIDGET_VISIBLE (page->child) &&
(event->x >= page->allocation.x) &&
(event->y >= page->allocation.y) &&
(event->x <= (page->allocation.x + page->allocation.width)) &&
(event->y <= (page->allocation.y + page->allocation.height)))
{
gtk_notebook_switch_page (notebook, page);
break;
}
children = children->next;
}
return FALSE;
}
static void
gtk_notebook_add (GtkContainer *container,
GtkWidget *widget)
{
g_warning ("gtk_notebook_add: use gtk_notebook_{append,prepend}_page instead\n");
}
static void
gtk_notebook_remove (GtkContainer *container,
GtkWidget *widget)
{
GtkNotebook *notebook;
GtkNotebookPage *page;
GList *children;
g_return_if_fail (container != NULL);
g_return_if_fail (GTK_IS_NOTEBOOK (container));
g_return_if_fail (widget != NULL);
notebook = GTK_NOTEBOOK (container);
children = notebook->children;
while (children)
{
page = children->data;
if (page->child == widget)
{
gtk_widget_unparent (page->child);
gtk_widget_unparent (page->tab_label);
notebook->children = g_list_remove_link (notebook->children, children);
g_list_free (children);
g_free (page);
if (GTK_WIDGET_VISIBLE (widget) && GTK_WIDGET_VISIBLE (container))
gtk_widget_queue_resize (GTK_WIDGET (container));
break;
}
children = children->next;
}
}
static void
gtk_notebook_foreach (GtkContainer *container,
GtkCallback callback,
gpointer callback_data)
{
GtkNotebook *notebook;
GtkNotebookPage *page;
GList *children;
g_return_if_fail (container != NULL);
g_return_if_fail (GTK_IS_NOTEBOOK (container));
g_return_if_fail (callback != NULL);
notebook = GTK_NOTEBOOK (container);
children = notebook->children;
while (children)
{
page = children->data;
children = children->next;
(* callback) (page->child, callback_data);
}
}
static void
gtk_notebook_switch_page (GtkNotebook *notebook,
GtkNotebookPage *page)
{
g_return_if_fail (notebook != NULL);
g_return_if_fail (page != NULL);
if (notebook->cur_page != page)
{
if (notebook->cur_page && GTK_WIDGET_MAPPED (notebook->cur_page->child))
gtk_widget_unmap (notebook->cur_page->child);
notebook->cur_page = page;
gtk_notebook_pages_allocate (notebook, &GTK_WIDGET (notebook)->allocation);
if (GTK_WIDGET_MAPPED (notebook))
{
if (GTK_WIDGET_REALIZED (notebook->cur_page->child))
{
gtk_widget_map (notebook->cur_page->child);
}
else
{
gtk_widget_map (notebook->cur_page->child);
gtk_widget_size_allocate (GTK_WIDGET (notebook),
&GTK_WIDGET (notebook)->allocation);
}
}
if (GTK_WIDGET_DRAWABLE (notebook))
gtk_widget_queue_draw (GTK_WIDGET (notebook));
}
}
static void
gtk_notebook_set_clip_rect (GtkNotebook *notebook,
GtkStateType state_type,
GdkRectangle *area)
{
GtkWidget *widget = GTK_WIDGET (notebook);
gdk_gc_set_clip_rectangle (widget->style->bg_gc[state_type], area);
gdk_gc_set_clip_rectangle (widget->style->light_gc[state_type], area);
gdk_gc_set_clip_rectangle (widget->style->dark_gc[state_type], area);
gdk_gc_set_clip_rectangle (widget->style->black_gc, area);
}
static void
gtk_notebook_draw_tab (GtkNotebook *notebook,
GtkNotebookPage *page,
GdkRectangle *area)
{
GdkRectangle child_area;
GdkRectangle page_area;
GtkStateType state_type;
GdkPoint points[6];
g_return_if_fail (notebook != NULL);
g_return_if_fail (page != NULL);
g_return_if_fail (area != NULL);
page_area.x = page->allocation.x;
page_area.y = page->allocation.y;
page_area.width = page->allocation.width;
page_area.height = page->allocation.height;
if (gdk_rectangle_intersect (&page_area, area, &child_area))
{
switch (notebook->tab_pos)
{
case GTK_POS_TOP:
points[0].x = page->allocation.x + page->allocation.width - 1;
points[0].y = page->allocation.y + page->allocation.height - 1;
points[1].x = page->allocation.x + page->allocation.width - 1;
points[1].y = page->allocation.y + TAB_CURVATURE;
points[2].x = page->allocation.x + page->allocation.width - TAB_CURVATURE - 1;
points[2].y = page->allocation.y;
points[3].x = page->allocation.x + TAB_CURVATURE;
points[3].y = page->allocation.y;
points[4].x = page->allocation.x;
points[4].y = page->allocation.y + TAB_CURVATURE;
points[5].x = page->allocation.x;
points[5].y = page->allocation.y + page->allocation.height - 1;
break;
case GTK_POS_BOTTOM:
points[0].x = page->allocation.x;
points[0].y = page->allocation.y;
points[1].x = page->allocation.x;
points[1].y = page->allocation.y + page->allocation.height - TAB_CURVATURE - 1;
points[2].x = page->allocation.x + TAB_CURVATURE;
points[2].y = page->allocation.y + page->allocation.height - 1;
points[3].x = page->allocation.x + page->allocation.width - TAB_CURVATURE - 1;
points[3].y = page->allocation.y + page->allocation.height - 1;
points[4].x = page->allocation.x + page->allocation.width - 1;
points[4].y = page->allocation.y + page->allocation.height - TAB_CURVATURE - 1;
points[5].x = page->allocation.x + page->allocation.width - 1;
points[5].y = page->allocation.y;
break;
case GTK_POS_LEFT:
points[0].x = page->allocation.x + page->allocation.width - 1;
points[0].y = page->allocation.y;
points[1].x = page->allocation.x + TAB_CURVATURE;
points[1].y = page->allocation.y;
points[2].x = page->allocation.x;
points[2].y = page->allocation.y + TAB_CURVATURE;
points[3].x = page->allocation.x;
points[3].y = page->allocation.y + page->allocation.height - TAB_CURVATURE - 1;
points[4].x = page->allocation.x + TAB_CURVATURE;
points[4].y = page->allocation.y + page->allocation.height - 1;
points[5].x = page->allocation.x + page->allocation.width - 1;
points[5].y = page->allocation.y + page->allocation.height - 1;
break;
case GTK_POS_RIGHT:
points[0].x = page->allocation.x;
points[0].y = page->allocation.y + page->allocation.height - 1;
points[1].x = page->allocation.x + page->allocation.width - TAB_CURVATURE - 1;
points[1].y = page->allocation.y + page->allocation.height - 1;
points[2].x = page->allocation.x + page->allocation.width - 1;
points[2].y = page->allocation.y + page->allocation.height - TAB_CURVATURE - 1;
points[3].x = page->allocation.x + page->allocation.width - 1;
points[3].y = page->allocation.y + TAB_CURVATURE;
points[4].x = page->allocation.x + page->allocation.width - TAB_CURVATURE - 1;
points[4].y = page->allocation.y;
points[5].x = page->allocation.x;
points[5].y = page->allocation.y;
break;
}
if (notebook->cur_page == page)
state_type = GTK_STATE_NORMAL;
else
state_type = GTK_STATE_ACTIVE;
gtk_draw_polygon (GTK_WIDGET (notebook)->style,
GTK_WIDGET (notebook)->window,
state_type, GTK_SHADOW_OUT,
points, 6, (notebook->cur_page != page));
if (gtk_widget_intersect (page->tab_label, area, &child_area))
gtk_widget_draw (page->tab_label, &child_area);
}
}
static void
gtk_notebook_pages_allocate (GtkNotebook *notebook,
GtkAllocation *allocation)
{
GtkNotebookPage *page;
GtkAllocation child_allocation;
GList *children;
if (notebook->show_tabs && notebook->children)
{
child_allocation.x = GTK_CONTAINER (notebook)->border_width;
child_allocation.y = GTK_CONTAINER (notebook)->border_width;
switch (notebook->tab_pos)
{
case GTK_POS_BOTTOM:
child_allocation.y = allocation->height - notebook->cur_page->requisition.height;
case GTK_POS_TOP:
child_allocation.height = notebook->cur_page->requisition.height;
break;
case GTK_POS_RIGHT:
child_allocation.x = allocation->width - notebook->cur_page->requisition.width;
case GTK_POS_LEFT:
child_allocation.width = notebook->cur_page->requisition.width;
break;
}
children = notebook->children;
while (children)
{
page = children->data;
children = children->next;
if (GTK_WIDGET_VISIBLE (page->child))
{
switch (notebook->tab_pos)
{
case GTK_POS_TOP:
case GTK_POS_BOTTOM:
child_allocation.width = page->requisition.width + TAB_OVERLAP;
break;
case GTK_POS_LEFT:
case GTK_POS_RIGHT:
child_allocation.height = page->requisition.height + TAB_OVERLAP;
break;
}
gtk_notebook_page_allocate (notebook, page, &child_allocation);
switch (notebook->tab_pos)
{
case GTK_POS_TOP:
case GTK_POS_BOTTOM:
child_allocation.x += child_allocation.width - TAB_OVERLAP;
break;
case GTK_POS_LEFT:
case GTK_POS_RIGHT:
child_allocation.y += child_allocation.height - TAB_OVERLAP;
break;
}
}
}
}
}
static void
gtk_notebook_page_allocate (GtkNotebook *notebook,
GtkNotebookPage *page,
GtkAllocation *allocation)
{
GtkAllocation child_allocation;
gint xthickness, ythickness;
g_return_if_fail (notebook != NULL);
g_return_if_fail (page != NULL);
g_return_if_fail (allocation != NULL);
page->allocation = *allocation;
xthickness = GTK_WIDGET (notebook)->style->klass->xthickness;
ythickness = GTK_WIDGET (notebook)->style->klass->ythickness;
if (notebook->cur_page != page)
{
switch (notebook->tab_pos)
{
case GTK_POS_TOP:
page->allocation.y += ythickness;
case GTK_POS_BOTTOM:
page->allocation.height -= ythickness;
break;
case GTK_POS_LEFT:
page->allocation.x += xthickness;
case GTK_POS_RIGHT:
page->allocation.width -= xthickness;
break;
}
}
switch (notebook->tab_pos)
{
case GTK_POS_TOP:
child_allocation.x = xthickness + CHILD_SPACING;
child_allocation.y = ythickness + CHILD_SPACING;
child_allocation.width = page->allocation.width - child_allocation.x * 2;
child_allocation.height = page->allocation.height - child_allocation.y;
child_allocation.x += page->allocation.x;
child_allocation.y += page->allocation.y;
break;
case GTK_POS_BOTTOM:
child_allocation.x = xthickness + CHILD_SPACING;
child_allocation.y = ythickness + CHILD_SPACING;
child_allocation.width = page->allocation.width - child_allocation.x * 2;
child_allocation.height = page->allocation.height - child_allocation.y;
child_allocation.x += page->allocation.x;
child_allocation.y = page->allocation.y;
break;
case GTK_POS_LEFT:
child_allocation.x = xthickness + CHILD_SPACING;
child_allocation.y = ythickness + CHILD_SPACING;
child_allocation.width = page->allocation.width - child_allocation.x;
child_allocation.height = page->allocation.height - child_allocation.y * 2;
child_allocation.x += page->allocation.x;
child_allocation.y += page->allocation.y;
break;
case GTK_POS_RIGHT:
child_allocation.x = xthickness + CHILD_SPACING;
child_allocation.y = ythickness + CHILD_SPACING;
child_allocation.width = page->allocation.width - child_allocation.x;
child_allocation.height = page->allocation.height - child_allocation.y * 2;
child_allocation.x = page->allocation.x;
child_allocation.y += page->allocation.y;
break;
}
gtk_widget_size_allocate (page->tab_label, &child_allocation);
}
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