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gtk2/gtk/gtktable.c
Elliot Lee 060978e069 I submitted this patch twice to gtk-devel-list, and received no comments, 
I submitted this patch twice to gtk-devel-list, and received no comments, so
am committing it.  Although not exhaustively tested, I have been using this
gtk+ for a week w/o problems, and I did read the code to ensure that nothing
ever writes to these data structures. If by chance people encounter SEGV's in
gtk+ code that is setting values in global data structures, this patch could
be a possible culprit.

1998-11-30  Elliot Lee  <sopwith@cuc.ml.org>

	* {gdk,gtk}/*.c: Make read-only data structures "static const" to
	allow them to be shared, mainly including (but not limited to) the
	GtkTypeInfo structures for each class.

	* gtk/gtkfilesel.c: Add /net to the "leave me alone" directory listing.
1998-11-30 19:07:15 +00:00

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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., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#include "gtktable.h"
enum
{
ARG_0,
ARG_N_ROWS,
ARG_N_COLUMNS,
ARG_COLUMN_SPACING,
ARG_ROW_SPACING,
ARG_HOMOGENEOUS
};
enum
{
CHILD_ARG_0,
CHILD_ARG_LEFT_ATTACH,
CHILD_ARG_RIGHT_ATTACH,
CHILD_ARG_TOP_ATTACH,
CHILD_ARG_BOTTOM_ATTACH,
CHILD_ARG_X_OPTIONS,
CHILD_ARG_Y_OPTIONS,
CHILD_ARG_X_PADDING,
CHILD_ARG_Y_PADDING
};
static void gtk_table_class_init (GtkTableClass *klass);
static void gtk_table_init (GtkTable *table);
static void gtk_table_finalize (GtkObject *object);
static void gtk_table_map (GtkWidget *widget);
static void gtk_table_unmap (GtkWidget *widget);
static void gtk_table_draw (GtkWidget *widget,
GdkRectangle *area);
static gint gtk_table_expose (GtkWidget *widget,
GdkEventExpose *event);
static void gtk_table_size_request (GtkWidget *widget,
GtkRequisition *requisition);
static void gtk_table_size_allocate (GtkWidget *widget,
GtkAllocation *allocation);
static void gtk_table_add (GtkContainer *container,
GtkWidget *widget);
static void gtk_table_remove (GtkContainer *container,
GtkWidget *widget);
static void gtk_table_forall (GtkContainer *container,
gboolean include_internals,
GtkCallback callback,
gpointer callback_data);
static void gtk_table_get_arg (GtkObject *object,
GtkArg *arg,
guint arg_id);
static void gtk_table_set_arg (GtkObject *object,
GtkArg *arg,
guint arg_id);
static void gtk_table_set_child_arg (GtkContainer *container,
GtkWidget *child,
GtkArg *arg,
guint arg_id);
static void gtk_table_get_child_arg (GtkContainer *container,
GtkWidget *child,
GtkArg *arg,
guint arg_id);
static GtkType gtk_table_child_type (GtkContainer *container);
static void gtk_table_size_request_init (GtkTable *table);
static void gtk_table_size_request_pass1 (GtkTable *table);
static void gtk_table_size_request_pass2 (GtkTable *table);
static void gtk_table_size_request_pass3 (GtkTable *table);
static void gtk_table_size_allocate_init (GtkTable *table);
static void gtk_table_size_allocate_pass1 (GtkTable *table);
static void gtk_table_size_allocate_pass2 (GtkTable *table);
static GtkContainerClass *parent_class = NULL;
GtkType
gtk_table_get_type (void)
{
static GtkType table_type = 0;
if (!table_type)
{
static const GtkTypeInfo table_info =
{
"GtkTable",
sizeof (GtkTable),
sizeof (GtkTableClass),
(GtkClassInitFunc) gtk_table_class_init,
(GtkObjectInitFunc) gtk_table_init,
/* reserved_1 */ NULL,
/* reserved_2 */ NULL,
(GtkClassInitFunc) NULL,
};
table_type = gtk_type_unique (gtk_container_get_type (), &table_info);
}
return table_type;
}
static void
gtk_table_class_init (GtkTableClass *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 ());
gtk_object_add_arg_type ("GtkTable::n_rows", GTK_TYPE_UINT, GTK_ARG_READWRITE, ARG_N_ROWS);
gtk_object_add_arg_type ("GtkTable::n_columns", GTK_TYPE_UINT, GTK_ARG_READWRITE, ARG_N_COLUMNS);
gtk_object_add_arg_type ("GtkTable::row_spacing", GTK_TYPE_UINT, GTK_ARG_READWRITE, ARG_ROW_SPACING);
gtk_object_add_arg_type ("GtkTable::column_spacing", GTK_TYPE_UINT, GTK_ARG_READWRITE, ARG_COLUMN_SPACING);
gtk_object_add_arg_type ("GtkTable::homogeneous", GTK_TYPE_BOOL, GTK_ARG_READWRITE, ARG_HOMOGENEOUS);
gtk_container_add_child_arg_type ("GtkTable::left_attach", GTK_TYPE_UINT, GTK_ARG_READWRITE, CHILD_ARG_LEFT_ATTACH);
gtk_container_add_child_arg_type ("GtkTable::right_attach", GTK_TYPE_UINT, GTK_ARG_READWRITE, CHILD_ARG_RIGHT_ATTACH);
gtk_container_add_child_arg_type ("GtkTable::top_attach", GTK_TYPE_UINT, GTK_ARG_READWRITE, CHILD_ARG_TOP_ATTACH);
gtk_container_add_child_arg_type ("GtkTable::bottom_attach", GTK_TYPE_UINT, GTK_ARG_READWRITE, CHILD_ARG_BOTTOM_ATTACH);
gtk_container_add_child_arg_type ("GtkTable::x_options", GTK_TYPE_ATTACH_OPTIONS, GTK_ARG_READWRITE, CHILD_ARG_X_OPTIONS);
gtk_container_add_child_arg_type ("GtkTable::y_options", GTK_TYPE_ATTACH_OPTIONS, GTK_ARG_READWRITE, CHILD_ARG_Y_OPTIONS);
gtk_container_add_child_arg_type ("GtkTable::x_padding", GTK_TYPE_UINT, GTK_ARG_READWRITE, CHILD_ARG_X_PADDING);
gtk_container_add_child_arg_type ("GtkTable::y_padding", GTK_TYPE_UINT, GTK_ARG_READWRITE, CHILD_ARG_Y_PADDING);
object_class->get_arg = gtk_table_get_arg;
object_class->set_arg = gtk_table_set_arg;
object_class->finalize = gtk_table_finalize;
widget_class->map = gtk_table_map;
widget_class->unmap = gtk_table_unmap;
widget_class->draw = gtk_table_draw;
widget_class->expose_event = gtk_table_expose;
widget_class->size_request = gtk_table_size_request;
widget_class->size_allocate = gtk_table_size_allocate;
container_class->add = gtk_table_add;
container_class->remove = gtk_table_remove;
container_class->forall = gtk_table_forall;
container_class->child_type = gtk_table_child_type;
container_class->set_child_arg = gtk_table_set_child_arg;
container_class->get_child_arg = gtk_table_get_child_arg;
}
static GtkType
gtk_table_child_type (GtkContainer *container)
{
return GTK_TYPE_WIDGET;
}
static void
gtk_table_get_arg (GtkObject *object,
GtkArg *arg,
guint arg_id)
{
GtkTable *table;
table = GTK_TABLE (object);
switch (arg_id)
{
case ARG_N_ROWS:
GTK_VALUE_UINT (*arg) = table->nrows;
break;
case ARG_N_COLUMNS:
GTK_VALUE_UINT (*arg) = table->ncols;
break;
case ARG_ROW_SPACING:
GTK_VALUE_UINT (*arg) = table->row_spacing;
break;
case ARG_COLUMN_SPACING:
GTK_VALUE_UINT (*arg) = table->column_spacing;
break;
case ARG_HOMOGENEOUS:
GTK_VALUE_BOOL (*arg) = table->homogeneous;
break;
default:
arg->type = GTK_TYPE_INVALID;
break;
}
}
static void
gtk_table_set_arg (GtkObject *object,
GtkArg *arg,
guint arg_id)
{
GtkTable *table;
table = GTK_TABLE (object);
switch (arg_id)
{
case ARG_N_ROWS:
gtk_table_resize (table, GTK_VALUE_UINT (*arg), table->ncols);
break;
case ARG_N_COLUMNS:
gtk_table_resize (table, table->nrows, GTK_VALUE_UINT (*arg));
break;
case ARG_ROW_SPACING:
gtk_table_set_row_spacings (table, GTK_VALUE_UINT (*arg));
break;
case ARG_COLUMN_SPACING:
gtk_table_set_col_spacings (table, GTK_VALUE_UINT (*arg));
break;
case ARG_HOMOGENEOUS:
gtk_table_set_homogeneous (table, GTK_VALUE_BOOL (*arg));
break;
default:
break;
}
}
static void
gtk_table_set_child_arg (GtkContainer *container,
GtkWidget *child,
GtkArg *arg,
guint arg_id)
{
GtkTable *table;
GtkTableChild *table_child;
GList *list;
table = GTK_TABLE (container);
table_child = NULL;
for (list = table->children; list; list = list->next)
{
table_child = list->data;
if (table_child->widget == child)
break;
}
if (!list)
return;
switch (arg_id)
{
case CHILD_ARG_LEFT_ATTACH:
table_child->left_attach = GTK_VALUE_UINT (*arg);
if (table_child->right_attach <= table_child->left_attach)
table_child->right_attach = table_child->left_attach + 1;
if (table_child->right_attach >= table->ncols)
gtk_table_resize (table, table->ncols, table_child->right_attach);
break;
case CHILD_ARG_RIGHT_ATTACH:
if (GTK_VALUE_UINT (*arg) > 0)
{
table_child->right_attach = GTK_VALUE_UINT (*arg);
if (table_child->right_attach <= table_child->left_attach)
table_child->left_attach = table_child->right_attach - 1;
if (table_child->right_attach >= table->ncols)
gtk_table_resize (table, table->ncols, table_child->right_attach);
}
break;
case CHILD_ARG_TOP_ATTACH:
table_child->top_attach = GTK_VALUE_UINT (*arg);
if (table_child->bottom_attach <= table_child->top_attach)
table_child->bottom_attach = table_child->top_attach + 1;
if (table_child->bottom_attach >= table->nrows)
gtk_table_resize (table, table_child->bottom_attach, table->ncols);
break;
case CHILD_ARG_BOTTOM_ATTACH:
if (GTK_VALUE_UINT (*arg) > 0)
{
table_child->bottom_attach = GTK_VALUE_UINT (*arg);
if (table_child->bottom_attach <= table_child->top_attach)
table_child->top_attach = table_child->bottom_attach - 1;
if (table_child->bottom_attach >= table->nrows)
gtk_table_resize (table, table_child->bottom_attach, table->ncols);
}
break;
case CHILD_ARG_X_OPTIONS:
table_child->xexpand = (GTK_VALUE_FLAGS (*arg) & GTK_EXPAND) != 0;
table_child->xshrink = (GTK_VALUE_FLAGS (*arg) & GTK_SHRINK) != 0;
table_child->xfill = (GTK_VALUE_FLAGS (*arg) & GTK_FILL) != 0;
break;
case CHILD_ARG_Y_OPTIONS:
table_child->yexpand = (GTK_VALUE_FLAGS (*arg) & GTK_EXPAND) != 0;
table_child->yshrink = (GTK_VALUE_FLAGS (*arg) & GTK_SHRINK) != 0;
table_child->yfill = (GTK_VALUE_FLAGS (*arg) & GTK_FILL) != 0;
break;
case CHILD_ARG_X_PADDING:
table_child->xpadding = GTK_VALUE_UINT (*arg);
break;
case CHILD_ARG_Y_PADDING:
table_child->ypadding = GTK_VALUE_UINT (*arg);
break;
default:
break;
}
if (GTK_WIDGET_VISIBLE (child) && GTK_WIDGET_VISIBLE (table))
gtk_widget_queue_resize (child);
}
static void
gtk_table_get_child_arg (GtkContainer *container,
GtkWidget *child,
GtkArg *arg,
guint arg_id)
{
GtkTable *table;
GtkTableChild *table_child;
GList *list;
table = GTK_TABLE (container);
table_child = NULL;
for (list = table->children; list; list = list->next)
{
table_child = list->data;
if (table_child->widget == child)
break;
}
if (!list)
return;
switch (arg_id)
{
case CHILD_ARG_LEFT_ATTACH:
GTK_VALUE_UINT (*arg) = table_child->left_attach;
break;
case CHILD_ARG_RIGHT_ATTACH:
GTK_VALUE_UINT (*arg) = table_child->right_attach;
break;
case CHILD_ARG_TOP_ATTACH:
GTK_VALUE_UINT (*arg) = table_child->top_attach;
break;
case CHILD_ARG_BOTTOM_ATTACH:
GTK_VALUE_UINT (*arg) = table_child->bottom_attach;
break;
case CHILD_ARG_X_OPTIONS:
GTK_VALUE_FLAGS (*arg) = (table_child->xexpand * GTK_EXPAND |
table_child->xshrink * GTK_SHRINK |
table_child->xfill * GTK_FILL);
break;
case CHILD_ARG_Y_OPTIONS:
GTK_VALUE_FLAGS (*arg) = (table_child->yexpand * GTK_EXPAND |
table_child->yshrink * GTK_SHRINK |
table_child->yfill * GTK_FILL);
break;
case CHILD_ARG_X_PADDING:
GTK_VALUE_UINT (*arg) = table_child->xpadding;
break;
case CHILD_ARG_Y_PADDING:
GTK_VALUE_UINT (*arg) = table_child->ypadding;
break;
default:
arg->type = GTK_TYPE_INVALID;
break;
}
}
static void
gtk_table_init (GtkTable *table)
{
GTK_WIDGET_SET_FLAGS (table, GTK_NO_WINDOW);
table->children = NULL;
table->rows = NULL;
table->cols = NULL;
table->nrows = 0;
table->ncols = 0;
table->column_spacing = 0;
table->row_spacing = 0;
table->homogeneous = FALSE;
gtk_table_resize (table, 1, 1);
}
GtkWidget*
gtk_table_new (guint rows,
guint columns,
gboolean homogeneous)
{
GtkTable *table;
if (rows == 0)
rows = 1;
if (columns == 0)
columns = 1;
table = gtk_type_new (gtk_table_get_type ());
table->homogeneous = (homogeneous ? TRUE : FALSE);
gtk_table_resize (table, rows, columns);
return GTK_WIDGET (table);
}
void
gtk_table_resize (GtkTable *table,
guint n_rows,
guint n_cols)
{
g_return_if_fail (table != NULL);
g_return_if_fail (GTK_IS_TABLE (table));
n_rows = MAX (n_rows, 1);
n_cols = MAX (n_cols, 1);
if (n_rows != table->nrows ||
n_cols != table->ncols)
{
GList *list;
for (list = table->children; list; list = list->next)
{
GtkTableChild *child;
child = list->data;
n_rows = MAX (n_rows, child->bottom_attach);
n_cols = MAX (n_cols, child->right_attach);
}
if (n_rows != table->nrows)
{
guint i;
i = table->nrows;
table->nrows = n_rows;
table->rows = g_realloc (table->rows, table->nrows * sizeof (GtkTableRowCol));
for (; i < table->nrows; i++)
{
table->rows[i].requisition = 0;
table->rows[i].allocation = 0;
table->rows[i].spacing = table->row_spacing;
table->rows[i].need_expand = 0;
table->rows[i].need_shrink = 0;
table->rows[i].expand = 0;
table->rows[i].shrink = 0;
}
}
if (n_cols != table->ncols)
{
guint i;
i = table->ncols;
table->ncols = n_cols;
table->cols = g_realloc (table->cols, table->ncols * sizeof (GtkTableRowCol));
for (; i < table->ncols; i++)
{
table->cols[i].requisition = 0;
table->cols[i].allocation = 0;
table->cols[i].spacing = table->column_spacing;
table->cols[i].need_expand = 0;
table->cols[i].need_shrink = 0;
table->cols[i].expand = 0;
table->cols[i].shrink = 0;
}
}
}
}
void
gtk_table_attach (GtkTable *table,
GtkWidget *child,
guint left_attach,
guint right_attach,
guint top_attach,
guint bottom_attach,
GtkAttachOptions xoptions,
GtkAttachOptions yoptions,
guint xpadding,
guint ypadding)
{
GtkTableChild *table_child;
g_return_if_fail (table != NULL);
g_return_if_fail (GTK_IS_TABLE (table));
g_return_if_fail (child != NULL);
g_return_if_fail (GTK_IS_WIDGET (child));
g_return_if_fail (child->parent == NULL);
/* g_return_if_fail (left_attach >= 0); */
g_return_if_fail (left_attach < right_attach);
/* g_return_if_fail (top_attach >= 0); */
g_return_if_fail (top_attach < bottom_attach);
if (right_attach >= table->ncols)
gtk_table_resize (table, table->nrows, right_attach);
if (bottom_attach >= table->nrows)
gtk_table_resize (table, bottom_attach, table->ncols);
table_child = g_new (GtkTableChild, 1);
table_child->widget = child;
table_child->left_attach = left_attach;
table_child->right_attach = right_attach;
table_child->top_attach = top_attach;
table_child->bottom_attach = bottom_attach;
table_child->xexpand = (xoptions & GTK_EXPAND) != 0;
table_child->xshrink = (xoptions & GTK_SHRINK) != 0;
table_child->xfill = (xoptions & GTK_FILL) != 0;
table_child->xpadding = xpadding;
table_child->yexpand = (yoptions & GTK_EXPAND) != 0;
table_child->yshrink = (yoptions & GTK_SHRINK) != 0;
table_child->yfill = (yoptions & GTK_FILL) != 0;
table_child->ypadding = ypadding;
table->children = g_list_prepend (table->children, table_child);
gtk_widget_set_parent (child, GTK_WIDGET (table));
if (GTK_WIDGET_VISIBLE (GTK_WIDGET (table)))
{
if (GTK_WIDGET_REALIZED (GTK_WIDGET (table)) &&
!GTK_WIDGET_REALIZED (child))
gtk_widget_realize (child);
if (GTK_WIDGET_MAPPED (GTK_WIDGET (table)) &&
!GTK_WIDGET_MAPPED (child))
gtk_widget_map (child);
}
if (GTK_WIDGET_VISIBLE (child) && GTK_WIDGET_VISIBLE (table))
gtk_widget_queue_resize (child);
}
void
gtk_table_attach_defaults (GtkTable *table,
GtkWidget *widget,
guint left_attach,
guint right_attach,
guint top_attach,
guint bottom_attach)
{
gtk_table_attach (table, widget,
left_attach, right_attach,
top_attach, bottom_attach,
GTK_EXPAND | GTK_FILL,
GTK_EXPAND | GTK_FILL,
0, 0);
}
void
gtk_table_set_row_spacing (GtkTable *table,
guint row,
guint spacing)
{
g_return_if_fail (table != NULL);
g_return_if_fail (GTK_IS_TABLE (table));
g_return_if_fail (row + 1 < table->nrows);
if (table->rows[row].spacing != spacing)
{
table->rows[row].spacing = spacing;
if (GTK_WIDGET_VISIBLE (table))
gtk_widget_queue_resize (GTK_WIDGET (table));
}
}
void
gtk_table_set_col_spacing (GtkTable *table,
guint column,
guint spacing)
{
g_return_if_fail (table != NULL);
g_return_if_fail (GTK_IS_TABLE (table));
g_return_if_fail (column + 1 < table->ncols);
if (table->cols[column].spacing != spacing)
{
table->cols[column].spacing = spacing;
if (GTK_WIDGET_VISIBLE (table))
gtk_widget_queue_resize (GTK_WIDGET (table));
}
}
void
gtk_table_set_row_spacings (GtkTable *table,
guint spacing)
{
guint row;
g_return_if_fail (table != NULL);
g_return_if_fail (GTK_IS_TABLE (table));
table->row_spacing = spacing;
for (row = 0; row + 1 < table->nrows; row++)
table->rows[row].spacing = spacing;
if (GTK_WIDGET_VISIBLE (table))
gtk_widget_queue_resize (GTK_WIDGET (table));
}
void
gtk_table_set_col_spacings (GtkTable *table,
guint spacing)
{
guint col;
g_return_if_fail (table != NULL);
g_return_if_fail (GTK_IS_TABLE (table));
table->column_spacing = spacing;
for (col = 0; col + 1 < table->ncols; col++)
table->cols[col].spacing = spacing;
if (GTK_WIDGET_VISIBLE (table))
gtk_widget_queue_resize (GTK_WIDGET (table));
}
void
gtk_table_set_homogeneous (GtkTable *table,
gboolean homogeneous)
{
g_return_if_fail (table != NULL);
g_return_if_fail (GTK_IS_TABLE (table));
homogeneous = (homogeneous != 0);
if (homogeneous != table->homogeneous)
{
table->homogeneous = homogeneous;
if (GTK_WIDGET_VISIBLE (table))
gtk_widget_queue_resize (GTK_WIDGET (table));
}
}
static void
gtk_table_finalize (GtkObject *object)
{
GtkTable *table;
g_return_if_fail (object != NULL);
g_return_if_fail (GTK_IS_TABLE (object));
table = GTK_TABLE (object);
g_free (table->rows);
g_free (table->cols);
(* GTK_OBJECT_CLASS (parent_class)->finalize) (object);
}
static void
gtk_table_map (GtkWidget *widget)
{
GtkTable *table;
GtkTableChild *child;
GList *children;
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_TABLE (widget));
table = GTK_TABLE (widget);
GTK_WIDGET_SET_FLAGS (table, GTK_MAPPED);
children = table->children;
while (children)
{
child = children->data;
children = children->next;
if (GTK_WIDGET_VISIBLE (child->widget) &&
!GTK_WIDGET_MAPPED (child->widget))
gtk_widget_map (child->widget);
}
}
static void
gtk_table_unmap (GtkWidget *widget)
{
GtkTable *table;
GtkTableChild *child;
GList *children;
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_TABLE (widget));
table = GTK_TABLE (widget);
GTK_WIDGET_UNSET_FLAGS (table, GTK_MAPPED);
children = table->children;
while (children)
{
child = children->data;
children = children->next;
if (GTK_WIDGET_VISIBLE (child->widget) &&
GTK_WIDGET_MAPPED (child->widget))
gtk_widget_unmap (child->widget);
}
}
static void
gtk_table_draw (GtkWidget *widget,
GdkRectangle *area)
{
GtkTable *table;
GtkTableChild *child;
GList *children;
GdkRectangle child_area;
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_TABLE (widget));
if (GTK_WIDGET_VISIBLE (widget) && GTK_WIDGET_MAPPED (widget))
{
table = GTK_TABLE (widget);
children = table->children;
while (children)
{
child = children->data;
children = children->next;
if (gtk_widget_intersect (child->widget, area, &child_area))
gtk_widget_draw (child->widget, &child_area);
}
}
}
static gint
gtk_table_expose (GtkWidget *widget,
GdkEventExpose *event)
{
GtkTable *table;
GtkTableChild *child;
GList *children;
GdkEventExpose child_event;
g_return_val_if_fail (widget != NULL, FALSE);
g_return_val_if_fail (GTK_IS_TABLE (widget), FALSE);
if (GTK_WIDGET_VISIBLE (widget) && GTK_WIDGET_MAPPED (widget))
{
table = GTK_TABLE (widget);
child_event = *event;
children = table->children;
while (children)
{
child = children->data;
children = children->next;
if (GTK_WIDGET_NO_WINDOW (child->widget) &&
gtk_widget_intersect (child->widget, &event->area, &child_event.area))
gtk_widget_event (child->widget, (GdkEvent*) &child_event);
}
}
return FALSE;
}
static void
gtk_table_size_request (GtkWidget *widget,
GtkRequisition *requisition)
{
GtkTable *table;
gint row, col;
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_TABLE (widget));
g_return_if_fail (requisition != NULL);
table = GTK_TABLE (widget);
requisition->width = 0;
requisition->height = 0;
gtk_table_size_request_init (table);
gtk_table_size_request_pass1 (table);
gtk_table_size_request_pass2 (table);
gtk_table_size_request_pass3 (table);
gtk_table_size_request_pass2 (table);
for (col = 0; col < table->ncols; col++)
requisition->width += table->cols[col].requisition;
for (col = 0; col + 1 < table->ncols; col++)
requisition->width += table->cols[col].spacing;
for (row = 0; row < table->nrows; row++)
requisition->height += table->rows[row].requisition;
for (row = 0; row + 1 < table->nrows; row++)
requisition->height += table->rows[row].spacing;
requisition->width += GTK_CONTAINER (table)->border_width * 2;
requisition->height += GTK_CONTAINER (table)->border_width * 2;
}
static void
gtk_table_size_allocate (GtkWidget *widget,
GtkAllocation *allocation)
{
GtkTable *table;
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_TABLE (widget));
g_return_if_fail (allocation != NULL);
widget->allocation = *allocation;
table = GTK_TABLE (widget);
gtk_table_size_allocate_init (table);
gtk_table_size_allocate_pass1 (table);
gtk_table_size_allocate_pass2 (table);
}
static void
gtk_table_add (GtkContainer *container,
GtkWidget *widget)
{
g_return_if_fail (container != NULL);
g_return_if_fail (GTK_IS_TABLE (container));
g_return_if_fail (widget != NULL);
gtk_table_attach_defaults (GTK_TABLE (container), widget, 0, 1, 0, 1);
}
static void
gtk_table_remove (GtkContainer *container,
GtkWidget *widget)
{
GtkTable *table;
GtkTableChild *child;
GList *children;
g_return_if_fail (container != NULL);
g_return_if_fail (GTK_IS_TABLE (container));
g_return_if_fail (widget != NULL);
table = GTK_TABLE (container);
children = table->children;
while (children)
{
child = children->data;
children = children->next;
if (child->widget == widget)
{
gboolean was_visible = GTK_WIDGET_VISIBLE (widget);
gtk_widget_unparent (widget);
table->children = g_list_remove (table->children, child);
g_free (child);
if (was_visible && GTK_WIDGET_VISIBLE (container))
gtk_container_queue_resize (container);
break;
}
}
}
static void
gtk_table_forall (GtkContainer *container,
gboolean include_internals,
GtkCallback callback,
gpointer callback_data)
{
GtkTable *table;
GtkTableChild *child;
GList *children;
g_return_if_fail (container != NULL);
g_return_if_fail (GTK_IS_TABLE (container));
g_return_if_fail (callback != NULL);
table = GTK_TABLE (container);
children = table->children;
while (children)
{
child = children->data;
children = children->next;
(* callback) (child->widget, callback_data);
}
}
static void
gtk_table_size_request_init (GtkTable *table)
{
GtkTableChild *child;
GList *children;
gint row, col;
for (row = 0; row < table->nrows; row++)
table->rows[row].requisition = 0;
for (col = 0; col < table->ncols; col++)
table->cols[col].requisition = 0;
children = table->children;
while (children)
{
child = children->data;
children = children->next;
if (GTK_WIDGET_VISIBLE (child->widget))
gtk_widget_size_request (child->widget, &child->widget->requisition);
}
}
static void
gtk_table_size_request_pass1 (GtkTable *table)
{
GtkTableChild *child;
GList *children;
gint width;
gint height;
children = table->children;
while (children)
{
child = children->data;
children = children->next;
if (GTK_WIDGET_VISIBLE (child->widget))
{
/* Child spans a single column.
*/
if (child->left_attach == (child->right_attach - 1))
{
width = child->widget->requisition.width + child->xpadding * 2;
table->cols[child->left_attach].requisition = MAX (table->cols[child->left_attach].requisition, width);
}
/* Child spans a single row.
*/
if (child->top_attach == (child->bottom_attach - 1))
{
height = child->widget->requisition.height + child->ypadding * 2;
table->rows[child->top_attach].requisition = MAX (table->rows[child->top_attach].requisition, height);
}
}
}
}
static void
gtk_table_size_request_pass2 (GtkTable *table)
{
gint max_width;
gint max_height;
gint row, col;
if (table->homogeneous)
{
max_width = 0;
max_height = 0;
for (col = 0; col < table->ncols; col++)
max_width = MAX (max_width, table->cols[col].requisition);
for (row = 0; row < table->nrows; row++)
max_height = MAX (max_height, table->rows[row].requisition);
for (col = 0; col < table->ncols; col++)
table->cols[col].requisition = max_width;
for (row = 0; row < table->nrows; row++)
table->rows[row].requisition = max_height;
}
}
static void
gtk_table_size_request_pass3 (GtkTable *table)
{
GtkTableChild *child;
GList *children;
gint width, height;
gint row, col;
gint extra;
children = table->children;
while (children)
{
child = children->data;
children = children->next;
if (GTK_WIDGET_VISIBLE (child->widget))
{
/* Child spans multiple columns.
*/
if (child->left_attach != (child->right_attach - 1))
{
/* Check and see if there is already enough space
* for the child.
*/
width = 0;
for (col = child->left_attach; col < child->right_attach; col++)
{
width += table->cols[col].requisition;
if ((col + 1) < child->right_attach)
width += table->cols[col].spacing;
}
/* If we need to request more space for this child to fill
* its requisition, then divide up the needed space evenly
* amongst the columns it spans.
*/
if (width < child->widget->requisition.width + child->xpadding * 2)
{
width = child->widget->requisition.width + child->xpadding * 2 - width;
for (col = child->left_attach; col < child->right_attach; col++)
{
extra = width / (child->right_attach - col);
table->cols[col].requisition += extra;
width -= extra;
}
}
}
/* Child spans multiple rows.
*/
if (child->top_attach != (child->bottom_attach - 1))
{
/* Check and see if there is already enough space
* for the child.
*/
height = 0;
for (row = child->top_attach; row < child->bottom_attach; row++)
{
height += table->rows[row].requisition;
if ((row + 1) < child->bottom_attach)
height += table->rows[row].spacing;
}
/* If we need to request more space for this child to fill
* its requisition, then divide up the needed space evenly
* amongst the columns it spans.
*/
if (height < child->widget->requisition.height + child->ypadding * 2)
{
height = child->widget->requisition.height + child->ypadding * 2 - height;
for (row = child->top_attach; row < child->bottom_attach; row++)
{
extra = height / (child->bottom_attach - row);
table->rows[row].requisition += extra;
height -= extra;
}
}
}
}
}
}
static void
gtk_table_size_allocate_init (GtkTable *table)
{
GtkTableChild *child;
GList *children;
gint row, col;
gint has_expand;
gint has_shrink;
/* Initialize the rows and cols.
* By default, rows and cols do not expand and do shrink.
* Those values are modified by the children that occupy
* the rows and cols.
*/
for (col = 0; col < table->ncols; col++)
{
table->cols[col].allocation = table->cols[col].requisition;
table->cols[col].need_expand = FALSE;
table->cols[col].need_shrink = TRUE;
table->cols[col].expand = FALSE;
table->cols[col].shrink = TRUE;
table->cols[col].empty = TRUE;
}
for (row = 0; row < table->nrows; row++)
{
table->rows[row].allocation = table->rows[row].requisition;
table->rows[row].need_expand = FALSE;
table->rows[row].need_shrink = TRUE;
table->rows[row].expand = FALSE;
table->rows[row].shrink = TRUE;
table->rows[row].empty = TRUE;
}
/* Loop over all the children and adjust the row and col values
* based on whether the children want to be allowed to expand
* or shrink. This loop handles children that occupy a single
* row or column.
*/
children = table->children;
while (children)
{
child = children->data;
children = children->next;
if (GTK_WIDGET_VISIBLE (child->widget))
{
if (child->left_attach == (child->right_attach - 1))
{
if (child->xexpand)
table->cols[child->left_attach].expand = TRUE;
if (!child->xshrink)
table->cols[child->left_attach].shrink = FALSE;
table->cols[child->left_attach].empty = FALSE;
}
if (child->top_attach == (child->bottom_attach - 1))
{
if (child->yexpand)
table->rows[child->top_attach].expand = TRUE;
if (!child->yshrink)
table->rows[child->top_attach].shrink = FALSE;
table->rows[child->top_attach].empty = FALSE;
}
}
}
/* Loop over all the children again and this time handle children
* which span multiple rows or columns.
*/
children = table->children;
while (children)
{
child = children->data;
children = children->next;
if (GTK_WIDGET_VISIBLE (child->widget))
{
if (child->left_attach != (child->right_attach - 1))
{
for (col = child->left_attach; col < child->right_attach; col++)
table->cols[col].empty = FALSE;
if (child->xexpand)
{
has_expand = FALSE;
for (col = child->left_attach; col < child->right_attach; col++)
if (table->cols[col].expand)
{
has_expand = TRUE;
break;
}
if (!has_expand)
for (col = child->left_attach; col < child->right_attach; col++)
table->cols[col].need_expand = TRUE;
}
if (!child->xshrink)
{
has_shrink = TRUE;
for (col = child->left_attach; col < child->right_attach; col++)
if (!table->cols[col].shrink)
{
has_shrink = FALSE;
break;
}
if (has_shrink)
for (col = child->left_attach; col < child->right_attach; col++)
table->cols[col].need_shrink = FALSE;
}
}
if (child->top_attach != (child->bottom_attach - 1))
{
for (row = child->top_attach; row < child->bottom_attach; row++)
table->rows[row].empty = FALSE;
if (child->yexpand)
{
has_expand = FALSE;
for (row = child->top_attach; row < child->bottom_attach; row++)
if (table->rows[row].expand)
{
has_expand = TRUE;
break;
}
if (!has_expand)
for (row = child->top_attach; row < child->bottom_attach; row++)
table->rows[row].need_expand = TRUE;
}
if (!child->yshrink)
{
has_shrink = TRUE;
for (row = child->top_attach; row < child->bottom_attach; row++)
if (!table->rows[row].shrink)
{
has_shrink = FALSE;
break;
}
if (has_shrink)
for (row = child->top_attach; row < child->bottom_attach; row++)
table->rows[row].need_shrink = FALSE;
}
}
}
}
/* Loop over the columns and set the expand and shrink values
* if the column can be expanded or shrunk.
*/
for (col = 0; col < table->ncols; col++)
{
if (table->cols[col].empty)
{
table->cols[col].expand = FALSE;
table->cols[col].shrink = FALSE;
}
else
{
if (table->cols[col].need_expand)
table->cols[col].expand = TRUE;
if (!table->cols[col].need_shrink)
table->cols[col].shrink = FALSE;
}
}
/* Loop over the rows and set the expand and shrink values
* if the row can be expanded or shrunk.
*/
for (row = 0; row < table->nrows; row++)
{
if (table->rows[row].empty)
{
table->rows[row].expand = FALSE;
table->rows[row].shrink = FALSE;
}
else
{
if (table->rows[row].need_expand)
table->rows[row].expand = TRUE;
if (!table->rows[row].need_shrink)
table->rows[row].shrink = FALSE;
}
}
}
static void
gtk_table_size_allocate_pass1 (GtkTable *table)
{
gint real_width;
gint real_height;
gint width, height;
gint row, col;
gint nexpand;
gint nshrink;
gint extra;
/* If we were allocated more space than we requested
* then we have to expand any expandable rows and columns
* to fill in the extra space.
*/
real_width = GTK_WIDGET (table)->allocation.width - GTK_CONTAINER (table)->border_width * 2;
real_height = GTK_WIDGET (table)->allocation.height - GTK_CONTAINER (table)->border_width * 2;
if (table->homogeneous)
{
nexpand = 0;
for (col = 0; col < table->ncols; col++)
if (table->cols[col].expand)
{
nexpand += 1;
break;
}
if (nexpand > 0)
{
width = real_width;
for (col = 0; col + 1 < table->ncols; col++)
width -= table->cols[col].spacing;
for (col = 0; col < table->ncols; col++)
{
extra = width / (table->ncols - col);
table->cols[col].allocation = MAX (1, extra);
width -= extra;
}
}
}
else
{
width = 0;
nexpand = 0;
nshrink = 0;
for (col = 0; col < table->ncols; col++)
{
width += table->cols[col].requisition;
if (table->cols[col].expand)
nexpand += 1;
if (table->cols[col].shrink)
nshrink += 1;
}
for (col = 0; col + 1 < table->ncols; col++)
width += table->cols[col].spacing;
/* Check to see if we were allocated more width than we requested.
*/
if ((width < real_width) && (nexpand >= 1))
{
width = real_width - width;
for (col = 0; col < table->ncols; col++)
if (table->cols[col].expand)
{
extra = width / nexpand;
table->cols[col].allocation += extra;
width -= extra;
nexpand -= 1;
}
}
/* Check to see if we were allocated less width than we requested.
*/
if ((width > real_width) && (nshrink >= 1))
{
width = width - real_width;
for (col = 0; col < table->ncols; col++)
if (table->cols[col].shrink)
{
extra = width / nshrink;
table->cols[col].allocation = MAX (1, table->cols[col].allocation - extra);
width -= extra;
nshrink -= 1;
}
}
}
if (table->homogeneous)
{
nexpand = 0;
for (row = 0; row < table->nrows; row++)
if (table->rows[row].expand)
{
nexpand += 1;
break;
}
if (nexpand > 0)
{
height = real_height;
for (row = 0; row + 1 < table->nrows; row++)
height -= table->rows[row].spacing;
for (row = 0; row < table->nrows; row++)
{
extra = height / (table->nrows - row);
table->rows[row].allocation = MAX (1, extra);
height -= extra;
}
}
}
else
{
height = 0;
nexpand = 0;
nshrink = 0;
for (row = 0; row < table->nrows; row++)
{
height += table->rows[row].requisition;
if (table->rows[row].expand)
nexpand += 1;
if (table->rows[row].shrink)
nshrink += 1;
}
for (row = 0; row + 1 < table->nrows; row++)
height += table->rows[row].spacing;
/* Check to see if we were allocated more height than we requested.
*/
if ((height < real_height) && (nexpand >= 1))
{
height = real_height - height;
for (row = 0; row < table->nrows; row++)
if (table->rows[row].expand)
{
extra = height / nexpand;
table->rows[row].allocation += extra;
height -= extra;
nexpand -= 1;
}
}
/* Check to see if we were allocated less height than we requested.
*/
if ((height > real_height) && (nshrink >= 1))
{
height = height - real_height;
for (row = 0; row < table->nrows; row++)
if (table->rows[row].shrink)
{
extra = height / nshrink;
table->rows[row].allocation = MAX (1, table->rows[row].allocation - extra);
height -= extra;
nshrink -= 1;
}
}
}
}
static void
gtk_table_size_allocate_pass2 (GtkTable *table)
{
GtkTableChild *child;
GList *children;
gint max_width;
gint max_height;
gint x, y;
gint row, col;
GtkAllocation allocation;
children = table->children;
while (children)
{
child = children->data;
children = children->next;
if (GTK_WIDGET_VISIBLE (child->widget))
{
x = GTK_WIDGET (table)->allocation.x + GTK_CONTAINER (table)->border_width;
y = GTK_WIDGET (table)->allocation.y + GTK_CONTAINER (table)->border_width;
max_width = 0;
max_height = 0;
for (col = 0; col < child->left_attach; col++)
{
x += table->cols[col].allocation;
x += table->cols[col].spacing;
}
for (col = child->left_attach; col < child->right_attach; col++)
{
max_width += table->cols[col].allocation;
if ((col + 1) < child->right_attach)
max_width += table->cols[col].spacing;
}
for (row = 0; row < child->top_attach; row++)
{
y += table->rows[row].allocation;
y += table->rows[row].spacing;
}
for (row = child->top_attach; row < child->bottom_attach; row++)
{
max_height += table->rows[row].allocation;
if ((row + 1) < child->bottom_attach)
max_height += table->rows[row].spacing;
}
if (child->xfill)
{
allocation.width = MAX (1, max_width - child->xpadding * 2);
allocation.x = x + (max_width - allocation.width) / 2;
}
else
{
allocation.width = child->widget->requisition.width;
allocation.x = x + (max_width - allocation.width) / 2;
}
if (child->yfill)
{
allocation.height = MAX (1, max_height - child->ypadding * 2);
allocation.y = y + (max_height - allocation.height) / 2;
}
else
{
allocation.height = child->widget->requisition.height;
allocation.y = y + (max_height - allocation.height) / 2;
}
gtk_widget_size_allocate (child->widget, &allocation);
}
}
}
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