gaim/gaim

Yo.
gtk1-stable v0_59_9
2003-03-01, Sean Egan
87952f35ac6d
Yo.
/* 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.
*/
/*
* GtkTicker Copyright 2000 Syd Logan
*/
#include "gtkticker.h"
#include <gtk/gtk.h>
static void gtk_ticker_compute_offsets (GtkTicker *ticker);
static void gtk_ticker_class_init (GtkTickerClass *klass);
static void gtk_ticker_init (GtkTicker *ticker);
static void gtk_ticker_map (GtkWidget *widget);
static void gtk_ticker_realize (GtkWidget *widget);
static void gtk_ticker_size_request (GtkWidget *widget,
GtkRequisition *requisition);
static void gtk_ticker_size_allocate (GtkWidget *widget,
GtkAllocation *allocation);
static void gtk_ticker_paint (GtkWidget *widget,
GdkRectangle *area);
static void gtk_ticker_draw (GtkWidget *widget,
GdkRectangle *area);
static gint gtk_ticker_expose (GtkWidget *widget,
GdkEventExpose *event);
static void gtk_ticker_add_real (GtkContainer *container,
GtkWidget *widget);
static void gtk_ticker_remove_real (GtkContainer *container,
GtkWidget *widget);
static void gtk_ticker_forall (GtkContainer *container,
gboolean include_internals,
GtkCallback callback,
gpointer callback_data);
static GtkType gtk_ticker_child_type (GtkContainer *container);
static GtkContainerClass *parent_class = NULL;
GtkType
gtk_ticker_get_type (void)
{
static GtkType ticker_type = 0;
if (!ticker_type)
{
static const GtkTypeInfo ticker_info =
{
"GtkTicker",
sizeof (GtkTicker),
sizeof (GtkTickerClass),
(GtkClassInitFunc) gtk_ticker_class_init,
(GtkObjectInitFunc) gtk_ticker_init,
/* reserved_1 */ NULL,
/* reserved_2 */ NULL,
(GtkClassInitFunc) NULL,
};
ticker_type = gtk_type_unique (GTK_TYPE_CONTAINER, &ticker_info);
}
return ticker_type;
}
static void
gtk_ticker_class_init (GtkTickerClass *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_TYPE_CONTAINER);
widget_class->map = gtk_ticker_map;
widget_class->realize = gtk_ticker_realize;
widget_class->size_request = gtk_ticker_size_request;
widget_class->size_allocate = gtk_ticker_size_allocate;
widget_class->draw = gtk_ticker_draw;
widget_class->expose_event = gtk_ticker_expose;
container_class->add = gtk_ticker_add_real;
container_class->remove = gtk_ticker_remove_real;
container_class->forall = gtk_ticker_forall;
container_class->child_type = gtk_ticker_child_type;
}
static GtkType
gtk_ticker_child_type (GtkContainer *container)
{
return GTK_TYPE_WIDGET;
}
static void
gtk_ticker_init (GtkTicker *ticker)
{
GTK_WIDGET_UNSET_FLAGS (ticker, GTK_NO_WINDOW);
ticker->interval = (guint) 200;
ticker->scootch = (guint) 2;
ticker->children = NULL;
ticker->timer = 0;
ticker->dirty = TRUE;
}
GtkWidget*
gtk_ticker_new (void)
{
GtkTicker *ticker;
ticker = gtk_type_new (GTK_TYPE_TICKER);
return GTK_WIDGET (ticker);
}
static void
gtk_ticker_put (GtkTicker *ticker,
GtkWidget *widget)
{
GtkTickerChild *child_info;
g_return_if_fail (ticker != NULL);
g_return_if_fail (GTK_IS_TICKER (ticker));
g_return_if_fail (widget != NULL);
child_info = g_new(GtkTickerChild, 1);
child_info->widget = widget;
child_info->x = 0;
gtk_widget_set_parent(widget, GTK_WIDGET (ticker));
ticker->children = g_list_append (ticker->children, child_info);
if (GTK_WIDGET_REALIZED (ticker))
gtk_widget_realize (widget);
if (GTK_WIDGET_VISIBLE (ticker) && GTK_WIDGET_VISIBLE (widget))
{
if (GTK_WIDGET_MAPPED (ticker))
gtk_widget_map (widget);
gtk_widget_queue_resize (GTK_WIDGET (ticker));
}
}
void
gtk_ticker_set_interval (GtkTicker *ticker, gint interval )
{
g_return_if_fail (ticker != NULL);
g_return_if_fail (GTK_IS_TICKER (ticker));
if ( interval < 0 )
interval = 200;
ticker->interval = interval;
}
guint
gtk_ticker_get_interval (GtkTicker *ticker )
{
g_return_val_if_fail (ticker != NULL, -1);
g_return_val_if_fail (GTK_IS_TICKER (ticker), -1);
return ticker->interval;
}
void
gtk_ticker_set_scootch (GtkTicker *ticker, gint scootch )
{
g_return_if_fail (ticker != NULL);
g_return_if_fail (GTK_IS_TICKER (ticker));
if ( scootch <= 0 )
scootch = 2;
ticker->scootch = scootch;
ticker->dirty = TRUE;
}
guint
gtk_ticker_get_scootch (GtkTicker *ticker )
{
g_return_val_if_fail (ticker != NULL, -1);
g_return_val_if_fail (GTK_IS_TICKER (ticker), -1);
return ticker->scootch;
}
void
gtk_ticker_set_spacing (GtkTicker *ticker, gint spacing )
{
g_return_if_fail (ticker != NULL);
g_return_if_fail (GTK_IS_TICKER (ticker));
if ( spacing < 0 )
spacing = 0;
ticker->spacing = spacing;
ticker->dirty = TRUE;
}
static int
ticker_timeout( gpointer data )
{
GtkTicker *ticker = (GtkTicker *) data;
if (GTK_WIDGET_VISIBLE (ticker))
gtk_widget_queue_resize (GTK_WIDGET (ticker));
return( TRUE );
}
void
gtk_ticker_start_scroll(GtkTicker *ticker)
{
g_return_if_fail (ticker != NULL);
g_return_if_fail (GTK_IS_TICKER (ticker));
if ( ticker->timer != 0 )
return;
ticker->timer = gtk_timeout_add(ticker->interval,
ticker_timeout, ticker);
}
void
gtk_ticker_stop_scroll(GtkTicker *ticker)
{
g_return_if_fail (ticker != NULL);
g_return_if_fail (GTK_IS_TICKER (ticker));
if ( ticker->timer == 0 )
return;
gtk_timeout_remove( ticker->timer );
ticker->timer = 0;
}
guint
gtk_ticker_get_spacing (GtkTicker *ticker )
{
g_return_val_if_fail (ticker != NULL, -1);
g_return_val_if_fail (GTK_IS_TICKER (ticker), -1);
return ticker->spacing;
}
static void
gtk_ticker_map (GtkWidget *widget)
{
GtkTicker *ticker;
GtkTickerChild *child;
GList *children;
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_TICKER (widget));
GTK_WIDGET_SET_FLAGS (widget, GTK_MAPPED);
ticker = GTK_TICKER (widget);
children = ticker->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);
}
gdk_window_show (widget->window);
}
static void
gtk_ticker_realize (GtkWidget *widget)
{
GdkWindowAttr attributes;
gint attributes_mask;
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_TICKER (widget));
GTK_WIDGET_SET_FLAGS (widget, 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 (gtk_widget_get_parent_window (widget),
&attributes, attributes_mask);
gdk_window_set_user_data (widget->window, widget);
widget->style = gtk_style_attach (widget->style, widget->window);
gtk_style_set_background (widget->style, widget->window, GTK_STATE_NORMAL);
}
static void
gtk_ticker_size_request (GtkWidget *widget,
GtkRequisition *requisition)
{
GtkTicker *ticker;
GtkTickerChild *child;
GList *children;
GtkRequisition child_requisition;
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_TICKER (widget));
g_return_if_fail (requisition != NULL);
ticker = GTK_TICKER (widget);
requisition->width = 0;
requisition->height = 0;
children = ticker->children;
while (children)
{
child = children->data;
children = children->next;
if (GTK_WIDGET_VISIBLE (child->widget))
{
gtk_widget_size_request (child->widget, &child_requisition);
requisition->height = MAX (requisition->height,
child_requisition.height);
requisition->width += child_requisition.width + ticker->spacing;
}
}
if ( requisition->width > ticker->spacing )
requisition->width -= ticker->spacing;
requisition->height += GTK_CONTAINER (ticker)->border_width * 2;
requisition->width += GTK_CONTAINER (ticker)->border_width * 2;
}
static void
gtk_ticker_compute_offsets (GtkTicker *ticker)
{
GtkTickerChild *child;
GtkRequisition child_requisition;
GList *children;
guint16 border_width;
g_return_if_fail (ticker != NULL);
g_return_if_fail (GTK_IS_TICKER(ticker));
border_width = GTK_CONTAINER (ticker)->border_width;
ticker->width = GTK_WIDGET(ticker)->allocation.width;
ticker->total = 0;
children = ticker->children;
while (children) {
child = children->data;
child->x = 0;
if (GTK_WIDGET_VISIBLE (child->widget)) {
gtk_widget_get_child_requisition (child->widget, &child_requisition);
child->offset = ticker->total;
ticker->total +=
child_requisition.width + border_width + ticker->spacing;
}
children = children->next;
}
ticker->dirty = FALSE;
}
static void
gtk_ticker_size_allocate (GtkWidget *widget,
GtkAllocation *allocation)
{
GtkTicker *ticker;
GtkTickerChild *child;
GtkAllocation child_allocation;
GtkRequisition child_requisition;
GList *children;
guint16 border_width;
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_TICKER(widget));
g_return_if_fail (allocation != NULL);
ticker = GTK_TICKER (widget);
if ( GTK_WIDGET(ticker)->allocation.width != ticker->width )
ticker->dirty = TRUE;
if ( ticker->dirty == TRUE ) {
gtk_ticker_compute_offsets( ticker );
}
widget->allocation = *allocation;
if (GTK_WIDGET_REALIZED (widget))
gdk_window_move_resize (widget->window,
allocation->x,
allocation->y,
allocation->width,
allocation->height);
border_width = GTK_CONTAINER (ticker)->border_width;
children = ticker->children;
while (children)
{
child = children->data;
child->x -= ticker->scootch;
if (GTK_WIDGET_VISIBLE (child->widget)) {
gtk_widget_get_child_requisition (child->widget, &child_requisition);
child_allocation.width = child_requisition.width;
child_allocation.x = child->offset + border_width + child->x;
if ( ( child_allocation.x + child_allocation.width ) < GTK_WIDGET(ticker)->allocation.x ) {
if ( ticker->total >= GTK_WIDGET(ticker)->allocation.width ) {
child->x += GTK_WIDGET(ticker)->allocation.x + GTK_WIDGET(ticker)->allocation.width + ( ticker->total - ( GTK_WIDGET(ticker)->allocation.x + GTK_WIDGET(ticker)->allocation.width ) );
}
else {
child->x += GTK_WIDGET(ticker)->allocation.x + GTK_WIDGET(ticker)->allocation.width;
}
}
child_allocation.y = border_width;
child_allocation.height = child_requisition.height;
gtk_widget_size_allocate (child->widget, &child_allocation);
}
children = children->next;
}
}
static void
gtk_ticker_paint (GtkWidget *widget,
GdkRectangle *area)
{
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_TICKER (widget));
g_return_if_fail (area != NULL);
if (GTK_WIDGET_DRAWABLE (widget))
gdk_window_clear_area (widget->window, 0, 0, widget->allocation.width,
widget->allocation.height);
}
static void
gtk_ticker_draw (GtkWidget *widget,
GdkRectangle *area)
{
GtkTicker *ticker;
GtkTickerChild *child;
GList *children;
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_TICKER (widget));
if (GTK_WIDGET_DRAWABLE (widget))
{
ticker = GTK_TICKER (widget);
gtk_ticker_paint (widget, area);
children = ticker->children;
while (children)
{
child = children->data;
children = children->next;
gtk_widget_draw (child->widget, NULL);
}
}
}
static gint
gtk_ticker_expose (GtkWidget *widget, GdkEventExpose *event)
{
GtkTicker *ticker;
GtkTickerChild *child;
GdkEventExpose child_event;
GList *children;
g_return_val_if_fail (widget != NULL, FALSE);
g_return_val_if_fail (GTK_IS_TICKER (widget), FALSE);
g_return_val_if_fail (event != NULL, FALSE);
if (GTK_WIDGET_DRAWABLE (widget))
{
ticker = GTK_TICKER (widget);
child_event = *event;
children = ticker->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;
}
void
gtk_ticker_add(GtkTicker *ticker, GtkWidget *widget)
{
gtk_ticker_add_real( GTK_CONTAINER( ticker ), widget );
ticker->dirty = TRUE;
}
void
gtk_ticker_remove(GtkTicker *ticker, GtkWidget *widget)
{
gtk_ticker_remove_real( GTK_CONTAINER( ticker ), widget );
ticker->dirty = TRUE;
}
static void
gtk_ticker_add_real(GtkContainer *container,
GtkWidget *widget)
{
g_return_if_fail (container != NULL);
g_return_if_fail (GTK_IS_TICKER (container));
g_return_if_fail (widget != NULL);
gtk_ticker_put(GTK_TICKER (container), widget);
}
static void
gtk_ticker_remove_real(GtkContainer *container,
GtkWidget *widget)
{
GtkTicker *ticker;
GtkTickerChild *child;
GList *children;
g_return_if_fail (container != NULL);
g_return_if_fail (GTK_IS_TICKER (container));
g_return_if_fail (widget != NULL);
ticker = GTK_TICKER (container);
children = ticker->children;
while (children)
{
child = children->data;
if (child->widget == widget)
{
gboolean was_visible = GTK_WIDGET_VISIBLE (widget);
gtk_widget_unparent (widget);
ticker->children = g_list_remove_link (ticker->children, children);
g_list_free (children);
g_free (child);
if (was_visible && GTK_WIDGET_VISIBLE (container))
gtk_widget_queue_resize (GTK_WIDGET (container));
break;
}
children = children->next;
}
}
static void
gtk_ticker_forall (GtkContainer *container,
gboolean include_internals,
GtkCallback callback,
gpointer callback_data)
{
GtkTicker *ticker;
GtkTickerChild *child;
GList *children;
g_return_if_fail (container != NULL);
g_return_if_fail (GTK_IS_TICKER (container));
g_return_if_fail (callback != NULL);
ticker = GTK_TICKER (container);
children = ticker->children;
while (children)
{
child = children->data;
children = children->next;
(* callback) (child->widget, callback_data);
}
}