[lttv.git] / ltt / branches / poly / lttv / modules / gui / main / src / gtkmultivpaned.c

/* This file is part of the Linux Trace Toolkit viewer
 * Copyright (C) 2003-2004 XangXiu Yang
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License Version 2 as
 * published by the Free Software Foundation;
 *
 * This program 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, 
 * MA 02111-1307, USA.
 */

#include <gtk/gtk.h>

#include <lttv/gtkmultivpaned.h>
//#include "gtkintl.h"
#include <lttv/mainwindow.h>
#include <lttv/gtktraceset.h>

static void gtk_multi_vpaned_class_init (GtkMultiVPanedClass    *klass);
static void gtk_multi_vpaned_init       (GtkMultiVPaned         *multi_vpaned);


static void     gtk_multi_vpaned_size_request   (GtkWidget      *widget,
					   GtkRequisition *requisition);
static void     gtk_multi_vpaned_size_allocate  (GtkWidget      *widget,
					   GtkAllocation  *allocation);

void gtk_multi_vpaned_scroll_value_changed (GtkRange *range, gpointer multi_vpaned);

GType
gtk_multi_vpaned_get_type (void)
{
  static GType multi_vpaned_type = 0;

  if (!multi_vpaned_type)
    {
      static const GTypeInfo multi_vpaned_info =
      {
	sizeof (GtkMultiVPanedClass),
	NULL,		/* base_init */
	NULL,		/* base_finalize */
	(GClassInitFunc) gtk_multi_vpaned_class_init,
	NULL,		/* class_finalize */
	NULL,		/* class_data */
	sizeof (GtkMultiVPaned),
	0,		/* n_preallocs */
	(GInstanceInitFunc) gtk_multi_vpaned_init,
	NULL,		/* value_table */
      };

      multi_vpaned_type = g_type_register_static (GTK_TYPE_PANED, "GtkMultiVPaned", 
					 &multi_vpaned_info, 0);
    }

  return multi_vpaned_type;
}

static void
gtk_multi_vpaned_class_init (GtkMultiVPanedClass *class)
{
  GtkWidgetClass *widget_class;
  
  widget_class = (GtkWidgetClass *) class;

  widget_class->size_request = gtk_multi_vpaned_size_request;
  widget_class->size_allocate = gtk_multi_vpaned_size_allocate;
}

static void
gtk_multi_vpaned_init (GtkMultiVPaned * multi_vpaned)
{
  GtkWidget * button;

  GTK_WIDGET_SET_FLAGS (multi_vpaned, GTK_NO_WINDOW);
  gtk_widget_set_redraw_on_allocate (GTK_WIDGET (multi_vpaned), FALSE);
  
  multi_vpaned->first_pane    = NULL;
  multi_vpaned->last_pane     = NULL;
  multi_vpaned->focused_pane  = NULL;
  multi_vpaned->iter          = NULL;
  multi_vpaned->num_children  = 0;

  multi_vpaned->vbox         = NULL;
  //  multi_vpaned->scrollWindow = NULL;
  //  multi_vpaned->viewport     = NULL;
  multi_vpaned->hscrollbar   = NULL;
}


GtkWidget* gtk_multi_vpaned_new ()
{
  return GTK_WIDGET (g_object_new (gtk_multi_vpaned_get_type (), NULL));
}

GtkWidget * gtk_multi_vpaned_get_widget(GtkMultiVPaned * multi_vpaned)
{
  if(multi_vpaned->focused_pane == NULL)return NULL;
  return (GtkWidget*)multi_vpaned->focused_pane->child2;
}

GtkWidget * gtk_multi_vpaned_get_first_widget(GtkMultiVPaned * multi_vpaned)
{
  if(multi_vpaned->first_pane == NULL)return NULL;
  multi_vpaned->iter = multi_vpaned->first_pane;
  return multi_vpaned->first_pane->child2;
}

GtkWidget * gtk_multi_vpaned_get_next_widget(GtkMultiVPaned * multi_vpaned)
{
  if(multi_vpaned->iter != multi_vpaned->last_pane){
    multi_vpaned->iter = (GtkPaned *)multi_vpaned->iter->child1;
    return multi_vpaned->iter->child2;
  }else {
    return NULL;
  }
}

void gtk_multi_vpaned_set_data(GtkMultiVPaned * multi_vpaned,char * key, gpointer value)
{
  g_object_set_data(G_OBJECT(multi_vpaned->focused_pane), key, value);    
}

gpointer gtk_multi_vpaned_get_data(GtkMultiVPaned * multi_vpaned,char * key)
{
  if(multi_vpaned->focused_pane == NULL)return NULL;
  return g_object_get_data(G_OBJECT(multi_vpaned->focused_pane), key);
}

void gtk_multi_vpaned_set_focus (GtkWidget * widget, gpointer user_data)
{
  GtkMultiVPaned * multi_vpaned = (GtkMultiVPaned*) widget;
  GtkPaned * pane;
  if(!multi_vpaned->first_pane) return;
  

  pane = multi_vpaned->first_pane;
  while(1){
    if((GtkWidget*)pane == (GtkWidget*)user_data){
      multi_vpaned->focused_pane = pane;
      break;
    }
    if(pane == multi_vpaned->last_pane){
      multi_vpaned->focused_pane = NULL;
      break;
    }
    pane = (GtkPaned*)pane->child1;
  }
}

void gtk_multi_vpaned_set_adjust(GtkMultiVPaned * multi_vpaned, gboolean first_time)
{
  TimeWindow time_window;
  TimeInterval *time_span;
  double tmp, start;
  double range = 0;

  get_time_window(multi_vpaned->mw,&time_window);
  if(first_time){
    time_span = LTTV_TRACESET_CONTEXT(multi_vpaned->mw->current_tab->traceset_info->
				      traceset_context)->Time_Span ;
  
    multi_vpaned->hadjust->lower = ltt_time_to_double(time_span->startTime) * 
                             NANOSECONDS_PER_SECOND;
    multi_vpaned->hadjust->value = multi_vpaned->hadjust->lower;
    multi_vpaned->hadjust->upper = ltt_time_to_double(time_span->endTime) *
                             NANOSECONDS_PER_SECOND;
  }

  /* Page increment of whole visible area */
  if(multi_vpaned->hadjust == NULL){
    g_warning("Insert a viewer first");
    return;
  }

  start = ltt_time_to_double(time_window.start_time) * NANOSECONDS_PER_SECOND;
  tmp = multi_vpaned->hadjust->upper - multi_vpaned->hadjust->lower;

  multi_vpaned->hadjust->page_increment = ltt_time_to_double(
		        time_window.time_width) * NANOSECONDS_PER_SECOND;

  if(multi_vpaned->hadjust->page_increment >= tmp - range)
    multi_vpaned->hadjust->value = multi_vpaned->hadjust->lower;
  if(start + multi_vpaned->hadjust->page_increment >= multi_vpaned->hadjust->upper - range)
    multi_vpaned->hadjust->value = start;

  /* page_size to the whole visible area will take care that the
     * scroll value + the shown area will never be more than what is
     * in the trace. */
  multi_vpaned->hadjust->page_size = multi_vpaned->hadjust->page_increment;
  multi_vpaned->hadjust->step_increment = multi_vpaned->hadjust->page_increment / 10;

  gtk_adjustment_changed (multi_vpaned->hadjust);
}

void gtk_multi_vpaned_widget_add(GtkMultiVPaned * multi_vpaned, GtkWidget * widget1)
{
  GtkPaned * tmpPane; 
  GtkWidget * w;
  
  g_return_if_fail(GTK_IS_MULTI_VPANED(multi_vpaned));
  g_object_ref(G_OBJECT(widget1));
 

  if(!multi_vpaned->first_pane){
    multi_vpaned->first_pane = (GtkPaned *)gtk_vpaned_new();
    multi_vpaned->last_pane = multi_vpaned->first_pane;

    multi_vpaned->hscrollbar = gtk_hscrollbar_new (NULL);
    gtk_widget_show(multi_vpaned->hscrollbar);

    multi_vpaned->hadjust = gtk_range_get_adjustment(GTK_RANGE(multi_vpaned->hscrollbar));
    gtk_multi_vpaned_set_adjust(multi_vpaned, TRUE);

    gtk_range_set_update_policy (GTK_RANGE(multi_vpaned->hscrollbar),
																 GTK_UPDATE_CONTINUOUS);
																 //changed by Mathieu Desnoyers, was :
                                 // GTK_UPDATE_DISCONTINUOUS);
    g_signal_connect(G_OBJECT(multi_vpaned->hscrollbar), "value-changed",
		     G_CALLBACK(gtk_multi_vpaned_scroll_value_changed), multi_vpaned);

    multi_vpaned->vbox = gtk_vbox_new(FALSE,0);
    gtk_widget_show(multi_vpaned->vbox);
    
    //    multi_vpaned->viewport = gtk_viewport_new (NULL,NULL);
    //    gtk_widget_show(multi_vpaned->viewport);
    
    //    gtk_container_add(GTK_CONTAINER(multi_vpaned->viewport), (GtkWidget*)multi_vpaned->vbox);
    gtk_box_pack_end(GTK_BOX(multi_vpaned->vbox),(GtkWidget*)multi_vpaned->hscrollbar,FALSE,FALSE,0);
    gtk_box_pack_end(GTK_BOX(multi_vpaned->vbox),(GtkWidget*)multi_vpaned->first_pane,TRUE,TRUE,0);
    
    //    multi_vpaned->scrollWindow = gtk_scrolled_window_new (NULL, NULL);
    //    gtk_widget_show(multi_vpaned->scrollWindow);
    //    gtk_container_add (GTK_CONTAINER (multi_vpaned->scrollWindow), (GtkWidget*)multi_vpaned->viewport);    
    //    gtk_paned_pack1(GTK_PANED(multi_vpaned), (GtkWidget*)multi_vpaned->scrollWindow,FALSE, TRUE);

    gtk_paned_pack1(GTK_PANED(multi_vpaned), (GtkWidget*)multi_vpaned->vbox,FALSE, TRUE);
  }else{
    tmpPane = multi_vpaned->last_pane;
    multi_vpaned->last_pane = (GtkPaned *)gtk_vpaned_new();
    gtk_paned_pack1 (tmpPane,(GtkWidget*)multi_vpaned->last_pane, FALSE,TRUE);
  }
  gtk_widget_show((GtkWidget *)multi_vpaned->last_pane);  

  gtk_paned_pack2 (multi_vpaned->last_pane,widget1, TRUE, TRUE);      
  multi_vpaned->focused_pane = multi_vpaned->last_pane;
  multi_vpaned->num_children++;
  
}

void gtk_multi_vpaned_widget_delete(GtkMultiVPaned * multi_vpaned)
{
  GtkPaned * tmp, *prev, *next;

  if(!multi_vpaned->focused_pane) return;
 
  tmp = (GtkPaned*)multi_vpaned->focused_pane->child2; //widget in vpaned
  g_object_unref(G_OBJECT(tmp));

  if(multi_vpaned->focused_pane == multi_vpaned->first_pane &&
     multi_vpaned->focused_pane == multi_vpaned->last_pane){
    //    gtk_container_remove(GTK_CONTAINER(multi_vpaned),(GtkWidget*)multi_vpaned->scrollWindow);
    gtk_container_remove(GTK_CONTAINER(multi_vpaned),(GtkWidget*)multi_vpaned->vbox);
    multi_vpaned->first_pane = NULL;
    multi_vpaned->last_pane = NULL;
    multi_vpaned->focused_pane = NULL;
  }else if(multi_vpaned->focused_pane == multi_vpaned->first_pane &&
	   multi_vpaned->focused_pane != multi_vpaned->last_pane){
    next = (GtkPaned*)multi_vpaned->first_pane->child1;
    g_object_ref(G_OBJECT(next));
    gtk_container_remove(GTK_CONTAINER(multi_vpaned->first_pane),(GtkWidget*)next);
    gtk_container_remove(GTK_CONTAINER(multi_vpaned->vbox),(GtkWidget*)multi_vpaned->first_pane);
    multi_vpaned->first_pane = next;
    gtk_box_pack_end(GTK_BOX(multi_vpaned->vbox),(GtkWidget*)multi_vpaned->first_pane,TRUE,TRUE,0);
    multi_vpaned->focused_pane = multi_vpaned->first_pane;
    g_object_unref(G_OBJECT(next));
  }else if(multi_vpaned->focused_pane != multi_vpaned->first_pane &&
	   multi_vpaned->focused_pane == multi_vpaned->last_pane){
    tmp = multi_vpaned->last_pane;
    multi_vpaned->last_pane = (GtkPaned*)gtk_widget_get_parent((GtkWidget*)multi_vpaned->last_pane);
    multi_vpaned->focused_pane = multi_vpaned->last_pane;
    gtk_container_remove(GTK_CONTAINER(multi_vpaned->last_pane),(GtkWidget*)tmp);
  }else{
    tmp = multi_vpaned->focused_pane;
    prev = (GtkPaned*)gtk_widget_get_parent((GtkWidget*)tmp);
    next = (GtkPaned*)tmp->child1;
    g_object_ref(G_OBJECT(next));
    gtk_container_remove(GTK_CONTAINER(multi_vpaned->focused_pane),(GtkWidget*)next);
    gtk_container_remove(GTK_CONTAINER(prev),(GtkWidget*)multi_vpaned->focused_pane);
    gtk_paned_pack1(prev, (GtkWidget*)next, FALSE, TRUE);
    multi_vpaned->focused_pane = next;
    g_object_unref(G_OBJECT(next));
  }

  multi_vpaned->num_children--;
}


void gtk_multi_vpaned_widget_move_up(GtkMultiVPaned * multi_vpaned)
{
  GtkWidget* upWidget, *downWidget;
  GtkPaned * prev,*next, *prevPrev;

  if(multi_vpaned->last_pane == multi_vpaned->focused_pane) return;

  // move VPane
  prev = (GtkPaned*)multi_vpaned->focused_pane->child1;
  g_object_ref(G_OBJECT(prev));
  gtk_container_remove(GTK_CONTAINER(multi_vpaned->focused_pane),(GtkWidget*)prev);

  if(prev == multi_vpaned->last_pane){
    prevPrev = NULL;
    multi_vpaned->last_pane = multi_vpaned->focused_pane;
  }else{    
    prevPrev = (GtkPaned*)prev->child1;
    g_object_ref(G_OBJECT(prevPrev));
    gtk_container_remove(GTK_CONTAINER(prev),(GtkWidget*)prevPrev);   
  }

  g_object_ref(G_OBJECT(multi_vpaned->focused_pane));
  if(multi_vpaned->first_pane == multi_vpaned->focused_pane){
    gtk_container_remove(GTK_CONTAINER(multi_vpaned->vbox),(GtkWidget*)multi_vpaned->focused_pane);
    gtk_box_pack_end(GTK_BOX(multi_vpaned->vbox),(GtkWidget*)prev,TRUE,TRUE,0);
    multi_vpaned->first_pane = prev;
  }else{
    next = (GtkPaned*)gtk_widget_get_parent((GtkWidget*)multi_vpaned->focused_pane);
    gtk_container_remove(GTK_CONTAINER(next),(GtkWidget*)multi_vpaned->focused_pane);
    gtk_paned_pack1(GTK_PANED(next), (GtkWidget*)prev, FALSE,TRUE);
  }
  gtk_paned_pack1(GTK_PANED(prev),(GtkWidget*)multi_vpaned->focused_pane, FALSE,TRUE);
  if(prevPrev)
    gtk_paned_pack1(GTK_PANED(multi_vpaned->focused_pane),(GtkWidget*)prevPrev, FALSE,TRUE);

  g_object_unref(G_OBJECT(prev));
  if(prevPrev) g_object_unref(G_OBJECT(prevPrev));
  g_object_unref(G_OBJECT(multi_vpaned->focused_pane));
}


void gtk_multi_vpaned_widget_move_down(GtkMultiVPaned * multi_vpaned)
{
  GtkWidget* upWidget, *downWidget;
  GtkPaned * prev,*next, *nextNext;

  if(multi_vpaned->first_pane == multi_vpaned->focused_pane) return;

  //move VPane
  next = (GtkPaned*)gtk_widget_get_parent((GtkWidget*)multi_vpaned->focused_pane);
  g_object_ref(G_OBJECT(next));

  if(multi_vpaned->last_pane == multi_vpaned->focused_pane){
    prev = NULL;
    multi_vpaned->last_pane = next;
  }else{
    prev = (GtkPaned*)multi_vpaned->focused_pane->child1;
    g_object_ref(G_OBJECT(prev));
    gtk_container_remove(GTK_CONTAINER(multi_vpaned->focused_pane),(GtkWidget*)prev);    
  }

  g_object_ref(G_OBJECT(multi_vpaned->focused_pane));
  gtk_container_remove(GTK_CONTAINER(next),(GtkWidget*)multi_vpaned->focused_pane);
  
  if(next == multi_vpaned->first_pane){
    multi_vpaned->first_pane = multi_vpaned->focused_pane;
    gtk_container_remove(GTK_CONTAINER(multi_vpaned->vbox),(GtkWidget*)next);       
    gtk_box_pack_end(GTK_BOX(multi_vpaned->vbox),(GtkWidget*)multi_vpaned->focused_pane,TRUE,TRUE,0);
  }else{    
    nextNext = (GtkPaned*)gtk_widget_get_parent((GtkWidget*)next);
    gtk_container_remove(GTK_CONTAINER(nextNext),(GtkWidget*)next);       
    gtk_paned_pack1(nextNext, (GtkWidget*)multi_vpaned->focused_pane, FALSE, TRUE);
  }
  gtk_paned_pack1(multi_vpaned->focused_pane,(GtkWidget*)next, FALSE,TRUE);
  if(prev)
    gtk_paned_pack1(next,(GtkWidget*)prev, FALSE,TRUE);

  if(prev)g_object_unref(G_OBJECT(prev));
  g_object_unref(G_OBJECT(next));
  g_object_unref(G_OBJECT(multi_vpaned->focused_pane));
}

void gtk_multi_vpaned_set_scroll_value(GtkMultiVPaned * multi_vpaned, double value)
{
  gtk_adjustment_set_value(multi_vpaned->hadjust, value);
  g_signal_stop_emission_by_name(G_OBJECT(multi_vpaned->hscrollbar), "value-changed");  
}

void gtk_multi_vpaned_scroll_value_changed(GtkRange *range, gpointer multi_vpaned_arg)
{
  TimeWindow time_window;
  TimeInterval *time_span;
  LttTime time;
  GtkMultiVPaned * multi_vpaned = (GtkMultiVPaned*)multi_vpaned_arg;
  gdouble value = gtk_range_get_value(range);
  gdouble upper, lower, ratio;

  time_window = multi_vpaned->mw->current_tab->time_window;

  time_span = LTTV_TRACESET_CONTEXT(multi_vpaned->mw->current_tab->traceset_info->
				    traceset_context)->Time_Span ;
  lower = multi_vpaned->hadjust->lower;
  upper = multi_vpaned->hadjust->upper;
  ratio = (value - lower) / (upper - lower);
  
  time = ltt_time_sub(time_span->endTime, time_span->startTime);
  time = ltt_time_mul(time, (float)ratio);
  time = ltt_time_add(time_span->startTime, time);

  time_window.start_time = time;

  time = ltt_time_sub(time_span->endTime, time);
  if(ltt_time_compare(time,time_window.time_width) < 0){
    time_window.time_width = time;
  }
  set_time_window(multi_vpaned->mw, &time_window); 
}


static void
gtk_multi_vpaned_size_request (GtkWidget      *widget,
			 GtkRequisition *requisition)
{
  GtkPaned *paned = GTK_PANED (widget);
  GtkRequisition child_requisition;

  requisition->width = 0;
  requisition->height = 0;

  if (paned->child1 && GTK_WIDGET_VISIBLE (paned->child1))
    {
      gtk_widget_size_request (paned->child1, &child_requisition);

      requisition->height = child_requisition.height;
      requisition->width = child_requisition.width;
    }

  if (paned->child2 && GTK_WIDGET_VISIBLE (paned->child2))
    {
      gtk_widget_size_request (paned->child2, &child_requisition);

      requisition->width = MAX (requisition->width, child_requisition.width);
      requisition->height += child_requisition.height;
    }

  requisition->height += GTK_CONTAINER (paned)->border_width * 2;
  requisition->width += GTK_CONTAINER (paned)->border_width * 2;
  
  if (paned->child1 && GTK_WIDGET_VISIBLE (paned->child1) &&
      paned->child2 && GTK_WIDGET_VISIBLE (paned->child2))
    {
      gint handle_size;

      gtk_widget_style_get (widget, "handle_size", &handle_size, NULL);
      requisition->height += handle_size;
    }

}

static void
gtk_multi_vpaned_size_allocate (GtkWidget     *widget,
			  GtkAllocation *allocation)
{
  GtkPaned *paned = GTK_PANED (widget);
  gint border_width = GTK_CONTAINER (paned)->border_width;

  widget->allocation = *allocation;

  if (paned->child1 && GTK_WIDGET_VISIBLE (paned->child1) &&
      paned->child2 && GTK_WIDGET_VISIBLE (paned->child2))
    {
      GtkRequisition child1_requisition;
      GtkRequisition child2_requisition;
      GtkAllocation child1_allocation;
      GtkAllocation child2_allocation;
      gint handle_size;
      
      gtk_widget_style_get (widget, "handle_size", &handle_size, NULL);

      gtk_widget_get_child_requisition (paned->child1, &child1_requisition);
      gtk_widget_get_child_requisition (paned->child2, &child2_requisition);
    
      gtk_paned_compute_position (paned,
				  MAX (1, widget->allocation.height
				       - handle_size
				       - 2 * border_width),
				  child1_requisition.height,
				  child2_requisition.height);

      paned->handle_pos.x = widget->allocation.x + border_width;
      paned->handle_pos.y = widget->allocation.y + paned->child1_size + border_width;
      paned->handle_pos.width = MAX (1, (gint) widget->allocation.width - 2 * border_width);
      paned->handle_pos.height = handle_size;
      
      if (GTK_WIDGET_REALIZED (widget))
	{
	  if (GTK_WIDGET_MAPPED (widget))
	    gdk_window_show (paned->handle);
	  gdk_window_move_resize (paned->handle,
				  paned->handle_pos.x,
				  paned->handle_pos.y,
				  paned->handle_pos.width,
				  handle_size);
	}

      child1_allocation.width = child2_allocation.width = MAX (1, (gint) allocation->width - border_width * 2);
      child1_allocation.height = MAX (1, paned->child1_size);
      child1_allocation.x = child2_allocation.x = widget->allocation.x + border_width;
      child1_allocation.y = widget->allocation.y + border_width;
      
      child2_allocation.y = child1_allocation.y + paned->child1_size + paned->handle_pos.height;
      child2_allocation.height = MAX (1, widget->allocation.y + widget->allocation.height - child2_allocation.y - border_width);
      
      if (GTK_WIDGET_MAPPED (widget) &&
	  paned->child1->allocation.height < child1_allocation.height)
	{
	  gtk_widget_size_allocate (paned->child2, &child2_allocation);
	  gtk_widget_size_allocate (paned->child1, &child1_allocation);
	}
      else
	{
	  gtk_widget_size_allocate (paned->child1, &child1_allocation);
	  gtk_widget_size_allocate (paned->child2, &child2_allocation);
	}
    }
  else
    {
      GtkAllocation child_allocation;

      if (GTK_WIDGET_REALIZED (widget))      
	gdk_window_hide (paned->handle);

      if (paned->child1)
	gtk_widget_set_child_visible (paned->child1, TRUE);
      if (paned->child2)
	gtk_widget_set_child_visible (paned->child2, TRUE);

      child_allocation.x = widget->allocation.x + border_width;
      child_allocation.y = widget->allocation.y + border_width;
      child_allocation.width = MAX (1, allocation->width - 2 * border_width);
      child_allocation.height = MAX (1, allocation->height - 2 * border_width);
      
      if (paned->child1 && GTK_WIDGET_VISIBLE (paned->child1))
	gtk_widget_size_allocate (paned->child1, &child_allocation);
      else if (paned->child2 && GTK_WIDGET_VISIBLE (paned->child2))
	gtk_widget_size_allocate (paned->child2, &child_allocation);
    }
}
Commit	Line	Data
e076699e	1	/* This file is part of the Linux Trace Toolkit viewer
	2	* Copyright (C) 2003-2004 XangXiu Yang
	3	*
	4	* This program is free software; you can redistribute it and/or modify
	5	* it under the terms of the GNU General Public License Version 2 as
	6	* published by the Free Software Foundation;
	7	*
	8	* This program is distributed in the hope that it will be useful,
	9	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	10	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	11	* GNU General Public License for more details.
	12	*
	13	* You should have received a copy of the GNU General Public License
	14	* along with this program; if not, write to the Free Software
	15	* Foundation, Inc., 59 Temple Place - Suite 330, Boston,
	16	* MA 02111-1307, USA.
	17	*/
	18
daecc161	19	#include <gtk/gtk.h>
	20
	21	#include <lttv/gtkmultivpaned.h>
	22	//#include "gtkintl.h"
637bd544	23	#include <lttv/mainwindow.h>
cef97e7c	24	#include <lttv/gtktraceset.h>
daecc161	25
	26	static void gtk_multi_vpaned_class_init (GtkMultiVPanedClass *klass);
	27	static void gtk_multi_vpaned_init (GtkMultiVPaned *multi_vpaned);
	28
	29
	30	static void gtk_multi_vpaned_size_request (GtkWidget *widget,
	31	GtkRequisition *requisition);
	32	static void gtk_multi_vpaned_size_allocate (GtkWidget *widget,
	33	GtkAllocation *allocation);
	34
	35	void gtk_multi_vpaned_scroll_value_changed (GtkRange *range, gpointer multi_vpaned);
	36
	37	GType
	38	gtk_multi_vpaned_get_type (void)
	39	{
	40	static GType multi_vpaned_type = 0;
	41
	42	if (!multi_vpaned_type)
	43	{
	44	static const GTypeInfo multi_vpaned_info =
	45	{
	46	sizeof (GtkMultiVPanedClass),
	47	NULL, /* base_init */
	48	NULL, /* base_finalize */
	49	(GClassInitFunc) gtk_multi_vpaned_class_init,
	50	NULL, /* class_finalize */
	51	NULL, /* class_data */
	52	sizeof (GtkMultiVPaned),
	53	0, /* n_preallocs */
	54	(GInstanceInitFunc) gtk_multi_vpaned_init,
	55	NULL, /* value_table */
	56	};
	57
	58	multi_vpaned_type = g_type_register_static (GTK_TYPE_PANED, "GtkMultiVPaned",
	59	&multi_vpaned_info, 0);
	60	}
	61
	62	return multi_vpaned_type;
	63	}
	64
	65	static void
	66	gtk_multi_vpaned_class_init (GtkMultiVPanedClass *class)
	67	{
	68	GtkWidgetClass *widget_class;
	69
	70	widget_class = (GtkWidgetClass *) class;
	71
	72	widget_class->size_request = gtk_multi_vpaned_size_request;
	73	widget_class->size_allocate = gtk_multi_vpaned_size_allocate;
	74	}
	75
	76	static void
	77	gtk_multi_vpaned_init (GtkMultiVPaned * multi_vpaned)
	78	{
	79	GtkWidget * button;
	80
	81	GTK_WIDGET_SET_FLAGS (multi_vpaned, GTK_NO_WINDOW);
	82	gtk_widget_set_redraw_on_allocate (GTK_WIDGET (multi_vpaned), FALSE);
	83
	84	multi_vpaned->first_pane = NULL;
	85	multi_vpaned->last_pane = NULL;
	86	multi_vpaned->focused_pane = NULL;
49bf71b5	87	multi_vpaned->iter = NULL;
daecc161	88	multi_vpaned->num_children = 0;
	89
	90	multi_vpaned->vbox = NULL;
	91	// multi_vpaned->scrollWindow = NULL;
	92	// multi_vpaned->viewport = NULL;
	93	multi_vpaned->hscrollbar = NULL;
	94	}
	95
	96
	97	GtkWidget* gtk_multi_vpaned_new ()
	98	{
	99	return GTK_WIDGET (g_object_new (gtk_multi_vpaned_get_type (), NULL));
	100	}
	101
49bf71b5	102	GtkWidget * gtk_multi_vpaned_get_widget(GtkMultiVPaned * multi_vpaned)
	103	{
	104	if(multi_vpaned->focused_pane == NULL)return NULL;
	105	return (GtkWidget*)multi_vpaned->focused_pane->child2;
	106	}
	107
	108	GtkWidget * gtk_multi_vpaned_get_first_widget(GtkMultiVPaned * multi_vpaned)
	109	{
	110	if(multi_vpaned->first_pane == NULL)return NULL;
	111	multi_vpaned->iter = multi_vpaned->first_pane;
	112	return multi_vpaned->first_pane->child2;
	113	}
	114
	115	GtkWidget * gtk_multi_vpaned_get_next_widget(GtkMultiVPaned * multi_vpaned)
	116	{
	117	if(multi_vpaned->iter != multi_vpaned->last_pane){
	118	multi_vpaned->iter = (GtkPaned *)multi_vpaned->iter->child1;
	119	return multi_vpaned->iter->child2;
	120	}else {
	121	return NULL;
	122	}
	123	}
	124
	125	void gtk_multi_vpaned_set_data(GtkMultiVPaned * multi_vpaned,char * key, gpointer value)
	126	{
	127	g_object_set_data(G_OBJECT(multi_vpaned->focused_pane), key, value);
	128	}
	129
	130	gpointer gtk_multi_vpaned_get_data(GtkMultiVPaned * multi_vpaned,char * key)
	131	{
	132	if(multi_vpaned->focused_pane == NULL)return NULL;
	133	return g_object_get_data(G_OBJECT(multi_vpaned->focused_pane), key);
	134	}
daecc161	135
	136	void gtk_multi_vpaned_set_focus (GtkWidget * widget, gpointer user_data)
	137	{
	138	GtkMultiVPaned * multi_vpaned = (GtkMultiVPaned*) widget;
	139	GtkPaned * pane;
	140	if(!multi_vpaned->first_pane) return;
	141
	142
	143	pane = multi_vpaned->first_pane;
	144	while(1){
	145	if((GtkWidget)pane == (GtkWidget)user_data){
	146	multi_vpaned->focused_pane = pane;
	147	break;
	148	}
	149	if(pane == multi_vpaned->last_pane){
	150	multi_vpaned->focused_pane = NULL;
	151	break;
	152	}
	153	pane = (GtkPaned*)pane->child1;
	154	}
	155	}
	156
	157	void gtk_multi_vpaned_set_adjust(GtkMultiVPaned * multi_vpaned, gboolean first_time)
	158	{
	159	TimeWindow time_window;
	160	TimeInterval *time_span;
	161	double tmp, start;
	162	double range = 0;
	163
	164	get_time_window(multi_vpaned->mw,&time_window);
	165	if(first_time){
	166	time_span = LTTV_TRACESET_CONTEXT(multi_vpaned->mw->current_tab->traceset_info->
	167	traceset_context)->Time_Span ;
	168
	169	multi_vpaned->hadjust->lower = ltt_time_to_double(time_span->startTime) *
	170	NANOSECONDS_PER_SECOND;
	171	multi_vpaned->hadjust->value = multi_vpaned->hadjust->lower;
	172	multi_vpaned->hadjust->upper = ltt_time_to_double(time_span->endTime) *
	173	NANOSECONDS_PER_SECOND;
	174	}
	175
	176	/* Page increment of whole visible area */
	177	if(multi_vpaned->hadjust == NULL){
	178	g_warning("Insert a viewer first");
	179	return;
	180	}
	181
	182	start = ltt_time_to_double(time_window.start_time) * NANOSECONDS_PER_SECOND;
	183	tmp = multi_vpaned->hadjust->upper - multi_vpaned->hadjust->lower;
	184
	185	multi_vpaned->hadjust->page_increment = ltt_time_to_double(
	186	time_window.time_width) * NANOSECONDS_PER_SECOND;
	187
	188	if(multi_vpaned->hadjust->page_increment >= tmp - range)
	189	multi_vpaned->hadjust->value = multi_vpaned->hadjust->lower;
	190	if(start + multi_vpaned->hadjust->page_increment >= multi_vpaned->hadjust->upper - range)
	191	multi_vpaned->hadjust->value = start;
	192
	193	/* page_size to the whole visible area will take care that the
	194	* scroll value + the shown area will never be more than what is
	195	* in the trace. */
	196	multi_vpaned->hadjust->page_size = multi_vpaned->hadjust->page_increment;
	197	multi_vpaned->hadjust->step_increment = multi_vpaned->hadjust->page_increment / 10;
	198
199	gtk_adjustment_changed (multi_vpaned->hadjust);
200	}
201
202	void gtk_multi_vpaned_widget_add(GtkMultiVPaned * multi_vpaned, GtkWidget * widget1)
203	{
204	GtkPaned * tmpPane;
205	GtkWidget * w;
206
207	g_return_if_fail(GTK_IS_MULTI_VPANED(multi_vpaned));
208	g_object_ref(G_OBJECT(widget1));
209
210
211	if(!multi_vpaned->first_pane){
212	multi_vpaned->first_pane = (GtkPaned *)gtk_vpaned_new();
213	multi_vpaned->last_pane = multi_vpaned->first_pane;
214
215	multi_vpaned->hscrollbar = gtk_hscrollbar_new (NULL);
216	gtk_widget_show(multi_vpaned->hscrollbar);
217
218	multi_vpaned->hadjust = gtk_range_get_adjustment(GTK_RANGE(multi_vpaned->hscrollbar));
219	gtk_multi_vpaned_set_adjust(multi_vpaned, TRUE);
220
221	gtk_range_set_update_policy (GTK_RANGE(multi_vpaned->hscrollbar),
4a93bd36	222	GTK_UPDATE_CONTINUOUS);
	223	//changed by Mathieu Desnoyers, was :
	224	// GTK_UPDATE_DISCONTINUOUS);
daecc161	225	g_signal_connect(G_OBJECT(multi_vpaned->hscrollbar), "value-changed",
	226	G_CALLBACK(gtk_multi_vpaned_scroll_value_changed), multi_vpaned);
	227
	228	multi_vpaned->vbox = gtk_vbox_new(FALSE,0);
	229	gtk_widget_show(multi_vpaned->vbox);
	230
	231	// multi_vpaned->viewport = gtk_viewport_new (NULL,NULL);
	232	// gtk_widget_show(multi_vpaned->viewport);
	233
	234	// gtk_container_add(GTK_CONTAINER(multi_vpaned->viewport), (GtkWidget*)multi_vpaned->vbox);
	235	gtk_box_pack_end(GTK_BOX(multi_vpaned->vbox),(GtkWidget*)multi_vpaned->hscrollbar,FALSE,FALSE,0);
	236	gtk_box_pack_end(GTK_BOX(multi_vpaned->vbox),(GtkWidget*)multi_vpaned->first_pane,TRUE,TRUE,0);
	237
	238	// multi_vpaned->scrollWindow = gtk_scrolled_window_new (NULL, NULL);
	239	// gtk_widget_show(multi_vpaned->scrollWindow);
	240	// gtk_container_add (GTK_CONTAINER (multi_vpaned->scrollWindow), (GtkWidget*)multi_vpaned->viewport);
	241	// gtk_paned_pack1(GTK_PANED(multi_vpaned), (GtkWidget*)multi_vpaned->scrollWindow,FALSE, TRUE);
	242
	243	gtk_paned_pack1(GTK_PANED(multi_vpaned), (GtkWidget*)multi_vpaned->vbox,FALSE, TRUE);
	244	}else{
	245	tmpPane = multi_vpaned->last_pane;
	246	multi_vpaned->last_pane = (GtkPaned *)gtk_vpaned_new();
	247	gtk_paned_pack1 (tmpPane,(GtkWidget*)multi_vpaned->last_pane, FALSE,TRUE);
	248	}
	249	gtk_widget_show((GtkWidget *)multi_vpaned->last_pane);
	250
	251	gtk_paned_pack2 (multi_vpaned->last_pane,widget1, TRUE, TRUE);
	252	multi_vpaned->focused_pane = multi_vpaned->last_pane;
	253	multi_vpaned->num_children++;
	254
	255	}
	256
	257	void gtk_multi_vpaned_widget_delete(GtkMultiVPaned * multi_vpaned)
	258	{
	259	GtkPaned * tmp, prev, next;
	260
	261	if(!multi_vpaned->focused_pane) return;
	262
	263	tmp = (GtkPaned*)multi_vpaned->focused_pane->child2; //widget in vpaned
	264	g_object_unref(G_OBJECT(tmp));
	265
	266	if(multi_vpaned->focused_pane == multi_vpaned->first_pane &&
	267	multi_vpaned->focused_pane == multi_vpaned->last_pane){
	268	// gtk_container_remove(GTK_CONTAINER(multi_vpaned),(GtkWidget*)multi_vpaned->scrollWindow);
	269	gtk_container_remove(GTK_CONTAINER(multi_vpaned),(GtkWidget*)multi_vpaned->vbox);
	270	multi_vpaned->first_pane = NULL;
	271	multi_vpaned->last_pane = NULL;
	272	multi_vpaned->focused_pane = NULL;
	273	}else if(multi_vpaned->focused_pane == multi_vpaned->first_pane &&
	274	multi_vpaned->focused_pane != multi_vpaned->last_pane){
	275	next = (GtkPaned*)multi_vpaned->first_pane->child1;
	276	g_object_ref(G_OBJECT(next));
	277	gtk_container_remove(GTK_CONTAINER(multi_vpaned->first_pane),(GtkWidget*)next);
	278	gtk_container_remove(GTK_CONTAINER(multi_vpaned->vbox),(GtkWidget*)multi_vpaned->first_pane);
	279	multi_vpaned->first_pane = next;
	280	gtk_box_pack_end(GTK_BOX(multi_vpaned->vbox),(GtkWidget*)multi_vpaned->first_pane,TRUE,TRUE,0);
	281	multi_vpaned->focused_pane = multi_vpaned->first_pane;
	282	g_object_unref(G_OBJECT(next));
	283	}else if(multi_vpaned->focused_pane != multi_vpaned->first_pane &&
	284	multi_vpaned->focused_pane == multi_vpaned->last_pane){
	285	tmp = multi_vpaned->last_pane;
	286	multi_vpaned->last_pane = (GtkPaned)gtk_widget_get_parent((GtkWidget)multi_vpaned->last_pane);
	287	multi_vpaned->focused_pane = multi_vpaned->last_pane;
	288	gtk_container_remove(GTK_CONTAINER(multi_vpaned->last_pane),(GtkWidget*)tmp);
289	}else{
290	tmp = multi_vpaned->focused_pane;
291	prev = (GtkPaned)gtk_widget_get_parent((GtkWidget)tmp);
292	next = (GtkPaned*)tmp->child1;
293	g_object_ref(G_OBJECT(next));
294	gtk_container_remove(GTK_CONTAINER(multi_vpaned->focused_pane),(GtkWidget*)next);
295	gtk_container_remove(GTK_CONTAINER(prev),(GtkWidget*)multi_vpaned->focused_pane);
296	gtk_paned_pack1(prev, (GtkWidget*)next, FALSE, TRUE);
297	multi_vpaned->focused_pane = next;
298	g_object_unref(G_OBJECT(next));
299	}
300
301	multi_vpaned->num_children--;
302	}
303
304
305	void gtk_multi_vpaned_widget_move_up(GtkMultiVPaned * multi_vpaned)
306	{
307	GtkWidget* upWidget, *downWidget;
308	GtkPaned * prev,next, prevPrev;
309
310	if(multi_vpaned->last_pane == multi_vpaned->focused_pane) return;
311
312	// move VPane
313	prev = (GtkPaned*)multi_vpaned->focused_pane->child1;
314	g_object_ref(G_OBJECT(prev));
315	gtk_container_remove(GTK_CONTAINER(multi_vpaned->focused_pane),(GtkWidget*)prev);
316
317	if(prev == multi_vpaned->last_pane){
318	prevPrev = NULL;
319	multi_vpaned->last_pane = multi_vpaned->focused_pane;
320	}else{
321	prevPrev = (GtkPaned*)prev->child1;
322	g_object_ref(G_OBJECT(prevPrev));
323	gtk_container_remove(GTK_CONTAINER(prev),(GtkWidget*)prevPrev);
324	}
325
326	g_object_ref(G_OBJECT(multi_vpaned->focused_pane));
327	if(multi_vpaned->first_pane == multi_vpaned->focused_pane){
328	gtk_container_remove(GTK_CONTAINER(multi_vpaned->vbox),(GtkWidget*)multi_vpaned->focused_pane);
329	gtk_box_pack_end(GTK_BOX(multi_vpaned->vbox),(GtkWidget*)prev,TRUE,TRUE,0);
330	multi_vpaned->first_pane = prev;
331	}else{
332	next = (GtkPaned)gtk_widget_get_parent((GtkWidget)multi_vpaned->focused_pane);
333	gtk_container_remove(GTK_CONTAINER(next),(GtkWidget*)multi_vpaned->focused_pane);
334	gtk_paned_pack1(GTK_PANED(next), (GtkWidget*)prev, FALSE,TRUE);
335	}
336	gtk_paned_pack1(GTK_PANED(prev),(GtkWidget*)multi_vpaned->focused_pane, FALSE,TRUE);
337	if(prevPrev)
338	gtk_paned_pack1(GTK_PANED(multi_vpaned->focused_pane),(GtkWidget*)prevPrev, FALSE,TRUE);
339
340	g_object_unref(G_OBJECT(prev));
341	if(prevPrev) g_object_unref(G_OBJECT(prevPrev));
342	g_object_unref(G_OBJECT(multi_vpaned->focused_pane));
343	}
344
345
346	void gtk_multi_vpaned_widget_move_down(GtkMultiVPaned * multi_vpaned)
347	{
348	GtkWidget* upWidget, *downWidget;
349	GtkPaned * prev,next, nextNext;
350
351	if(multi_vpaned->first_pane == multi_vpaned->focused_pane) return;
352
353	//move VPane
354	next = (GtkPaned)gtk_widget_get_parent((GtkWidget)multi_vpaned->focused_pane);
355	g_object_ref(G_OBJECT(next));
356
357	if(multi_vpaned->last_pane == multi_vpaned->focused_pane){
358	prev = NULL;
359	multi_vpaned->last_pane = next;
360	}else{
361	prev = (GtkPaned*)multi_vpaned->focused_pane->child1;
362	g_object_ref(G_OBJECT(prev));
363	gtk_container_remove(GTK_CONTAINER(multi_vpaned->focused_pane),(GtkWidget*)prev);
364	}
365
366	g_object_ref(G_OBJECT(multi_vpaned->focused_pane));
367	gtk_container_remove(GTK_CONTAINER(next),(GtkWidget*)multi_vpaned->focused_pane);
368
369	if(next == multi_vpaned->first_pane){
370	multi_vpaned->first_pane = multi_vpaned->focused_pane;
371	gtk_container_remove(GTK_CONTAINER(multi_vpaned->vbox),(GtkWidget*)next);
372	gtk_box_pack_end(GTK_BOX(multi_vpaned->vbox),(GtkWidget*)multi_vpaned->focused_pane,TRUE,TRUE,0);
373	}else{
374	nextNext = (GtkPaned)gtk_widget_get_parent((GtkWidget)next);
375	gtk_container_remove(GTK_CONTAINER(nextNext),(GtkWidget*)next);
376	gtk_paned_pack1(nextNext, (GtkWidget*)multi_vpaned->focused_pane, FALSE, TRUE);
377	}
378	gtk_paned_pack1(multi_vpaned->focused_pane,(GtkWidget*)next, FALSE,TRUE);
379	if(prev)
380	gtk_paned_pack1(next,(GtkWidget*)prev, FALSE,TRUE);
381
382	if(prev)g_object_unref(G_OBJECT(prev));
383	g_object_unref(G_OBJECT(next));
384	g_object_unref(G_OBJECT(multi_vpaned->focused_pane));
385	}
386
bca085a1	387	void gtk_multi_vpaned_set_scroll_value(GtkMultiVPaned * multi_vpaned, double value)
	388	{
	389	gtk_adjustment_set_value(multi_vpaned->hadjust, value);
	390	g_signal_stop_emission_by_name(G_OBJECT(multi_vpaned->hscrollbar), "value-changed");
	391	}
	392
daecc161	393	void gtk_multi_vpaned_scroll_value_changed(GtkRange *range, gpointer multi_vpaned_arg)
daecc161	394	{
58eecf4a	395	TimeWindow time_window;
58eecf4a	396	TimeInterval *time_span;
daecc161	397	LttTime time;
	398	GtkMultiVPaned * multi_vpaned = (GtkMultiVPaned*)multi_vpaned_arg;
	399	gdouble value = gtk_range_get_value(range);
58eecf4a	400	gdouble upper, lower, ratio;
	401
	402	time_window = multi_vpaned->mw->current_tab->time_window;
	403
	404	time_span = LTTV_TRACESET_CONTEXT(multi_vpaned->mw->current_tab->traceset_info->
	405	traceset_context)->Time_Span ;
	406	lower = multi_vpaned->hadjust->lower;
	407	upper = multi_vpaned->hadjust->upper;
	408	ratio = (value - lower) / (upper - lower);
	409
	410	time = ltt_time_sub(time_span->endTime, time_span->startTime);
	411	time = ltt_time_mul(time, (float)ratio);
	412	time = ltt_time_add(time_span->startTime, time);
	413
	414	time_window.start_time = time;
	415
	416	time = ltt_time_sub(time_span->endTime, time);
	417	if(ltt_time_compare(time,time_window.time_width) < 0){
	418	time_window.time_width = time;
	419	}
	420	set_time_window(multi_vpaned->mw, &time_window);
daecc161	421	}
	422
	423
	424	static void
	425	gtk_multi_vpaned_size_request (GtkWidget *widget,
	426	GtkRequisition *requisition)
	427	{
	428	GtkPaned *paned = GTK_PANED (widget);
	429	GtkRequisition child_requisition;
	430
	431	requisition->width = 0;
	432	requisition->height = 0;
	433
	434	if (paned->child1 && GTK_WIDGET_VISIBLE (paned->child1))
	435	{
	436	gtk_widget_size_request (paned->child1, &child_requisition);
	437
	438	requisition->height = child_requisition.height;
	439	requisition->width = child_requisition.width;
	440	}
	441
	442	if (paned->child2 && GTK_WIDGET_VISIBLE (paned->child2))
	443	{
	444	gtk_widget_size_request (paned->child2, &child_requisition);
	445
	446	requisition->width = MAX (requisition->width, child_requisition.width);
	447	requisition->height += child_requisition.height;
	448	}
	449
	450	requisition->height += GTK_CONTAINER (paned)->border_width * 2;
	451	requisition->width += GTK_CONTAINER (paned)->border_width * 2;
	452
	453	if (paned->child1 && GTK_WIDGET_VISIBLE (paned->child1) &&
	454	paned->child2 && GTK_WIDGET_VISIBLE (paned->child2))
	455	{
	456	gint handle_size;
	457
	458	gtk_widget_style_get (widget, "handle_size", &handle_size, NULL);
	459	requisition->height += handle_size;
	460	}
	461
	462	}
	463
	464	static void
	465	gtk_multi_vpaned_size_allocate (GtkWidget *widget,
	466	GtkAllocation *allocation)
	467	{
	468	GtkPaned *paned = GTK_PANED (widget);
	469	gint border_width = GTK_CONTAINER (paned)->border_width;
	470
	471	widget->allocation = *allocation;
	472
	473	if (paned->child1 && GTK_WIDGET_VISIBLE (paned->child1) &&
	474	paned->child2 && GTK_WIDGET_VISIBLE (paned->child2))
	475	{
	476	GtkRequisition child1_requisition;
	477	GtkRequisition child2_requisition;
	478	GtkAllocation child1_allocation;
	479	GtkAllocation child2_allocation;
	480	gint handle_size;
	481
	482	gtk_widget_style_get (widget, "handle_size", &handle_size, NULL);
	483
	484	gtk_widget_get_child_requisition (paned->child1, &child1_requisition);
485	gtk_widget_get_child_requisition (paned->child2, &child2_requisition);
486
487	gtk_paned_compute_position (paned,
488	MAX (1, widget->allocation.height
489	- handle_size
490	- 2 * border_width),
491	child1_requisition.height,
492	child2_requisition.height);
493
494	paned->handle_pos.x = widget->allocation.x + border_width;
495	paned->handle_pos.y = widget->allocation.y + paned->child1_size + border_width;
496	paned->handle_pos.width = MAX (1, (gint) widget->allocation.width - 2 * border_width);
497	paned->handle_pos.height = handle_size;
498
499	if (GTK_WIDGET_REALIZED (widget))
500	{
501	if (GTK_WIDGET_MAPPED (widget))
502	gdk_window_show (paned->handle);
503	gdk_window_move_resize (paned->handle,
504	paned->handle_pos.x,
505	paned->handle_pos.y,
506	paned->handle_pos.width,
507	handle_size);
508	}
509
510	child1_allocation.width = child2_allocation.width = MAX (1, (gint) allocation->width - border_width * 2);
511	child1_allocation.height = MAX (1, paned->child1_size);
512	child1_allocation.x = child2_allocation.x = widget->allocation.x + border_width;
513	child1_allocation.y = widget->allocation.y + border_width;
514
515	child2_allocation.y = child1_allocation.y + paned->child1_size + paned->handle_pos.height;
516	child2_allocation.height = MAX (1, widget->allocation.y + widget->allocation.height - child2_allocation.y - border_width);
517
518	if (GTK_WIDGET_MAPPED (widget) &&
519	paned->child1->allocation.height < child1_allocation.height)
520	{
521	gtk_widget_size_allocate (paned->child2, &child2_allocation);
522	gtk_widget_size_allocate (paned->child1, &child1_allocation);
523	}
524	else
525	{
526	gtk_widget_size_allocate (paned->child1, &child1_allocation);
527	gtk_widget_size_allocate (paned->child2, &child2_allocation);
528	}
529	}
530	else
531	{
532	GtkAllocation child_allocation;
533
534	if (GTK_WIDGET_REALIZED (widget))
535	gdk_window_hide (paned->handle);
536
537	if (paned->child1)
538	gtk_widget_set_child_visible (paned->child1, TRUE);
539	if (paned->child2)
540	gtk_widget_set_child_visible (paned->child2, TRUE);
541
542	child_allocation.x = widget->allocation.x + border_width;
543	child_allocation.y = widget->allocation.y + border_width;
544	child_allocation.width = MAX (1, allocation->width - 2 * border_width);
545	child_allocation.height = MAX (1, allocation->height - 2 * border_width);
546
547	if (paned->child1 && GTK_WIDGET_VISIBLE (paned->child1))
548	gtk_widget_size_allocate (paned->child1, &child_allocation);
549	else if (paned->child2 && GTK_WIDGET_VISIBLE (paned->child2))
550	gtk_widget_size_allocate (paned->child2, &child_allocation);
551	}
552	}
553