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/* functions for automatically resizing the window */
#include <gtk/gtk.h>
#include "resize.h"
/* Resize window to appropriate width for name and time/date columns
and default number of zones.
The window must be already shown for this to work.
*/
void resizeWindow( GtkWidget *window, GtkTreeView *clocklist )
{
gint width=0, height=0, scrollbarWidth;
GdkRectangle rect;
gint cellWidth, cellHeight;
GtkTreeViewColumn *column;
GList *list;
gint zonesToView=DEFAULT_ZONES_TO_VIEW; /* rows visible by default */
/* segfaults here if the window is not already shown */
gtk_widget_show(window);
gtk_window_get_default_size( GTK_WINDOW(window), &scrollbarWidth, &height);
if ( scrollbarWidth == -1 )
{
gtk_tree_view_get_visible_rect( clocklist, &rect );
gtk_window_get_size( GTK_WINDOW(window), &width, &height);
scrollbarWidth = width - rect.width;
gtk_window_set_default_size( GTK_WINDOW(window), scrollbarWidth, height);
}
/* calculate width (of columns) */
width = 0;
list = gtk_tree_view_get_columns( clocklist );
while ( list != NULL )
{
column = GTK_TREE_VIEW_COLUMN( list->data );
gtk_tree_view_column_cell_get_size( column, NULL, NULL, NULL,
&cellWidth, &cellHeight );
// gtk_tree_view_column_get_width gets a better spacing,
// but can be 0 when gtk_tree_view_columns_autosize is used.
if ( gtk_tree_view_column_get_width(column) == 0 )
width += cellWidth+2; // needs +2 to get improve spacing
else
width += gtk_tree_view_column_get_width(column);
list = g_list_next(list);
}
g_list_free( list );
/* add width of scroll bar, to get total width of window */
width += scrollbarWidth;
/* calculate height - initially shows one row,
allow room for zonesToView rows.
Adjustment of 1.5 rows is needed to avoid unsightly extra whitespace
at bottom of window.
*/
if ( zonesToView >
gtk_tree_model_iter_n_children( gtk_tree_view_get_model(clocklist), NULL) )
{
zonesToView = gtk_tree_model_iter_n_children( gtk_tree_view_get_model(clocklist), NULL );
}
height += cellHeight * (zonesToView - 1.5) ;
gtk_window_resize( GTK_WINDOW(window), width, height);
}
/* Act on "notify::width" signal from GtkTreeViewColumn,
to dynamically adjust width of clock.
*/
void updateColumnWidth (GtkTreeViewColumn *column,
GType dummyType,
gpointer clocklist)
{
static int oldWidth=0;
/* unfortunately the "notify::width" signal appears to be sent whenever
the clock is changed, rather than whenever the description column is
changed. So only update the window size when the width has really changed. */
if ( oldWidth != gtk_tree_view_column_get_width(column) )
{
resizeWindow( gtk_widget_get_toplevel( GTK_WIDGET(clocklist) ),
GTK_TREE_VIEW(clocklist) );
oldWidth = gtk_tree_view_column_get_width(column);
}
}
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