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/* This code is taken form the gtk-3 demo collection
and was simplified to meet the needs of the hintview application.
*/
#include <gtk/gtk.h>
#include "basetypes.h"
#include "hint.h"
#include "main.h"
static hint_Outline *outlines;
static int outlines_max;
static GtkWidget *outline_window = NULL;
static GtkWidget *tree_view=NULL;
/* columns */
#define SECTION_COL 0
#define LINK_COL 1
#define NUM_COLUMNS 2
/* add the outlines to the tree view model */
static int
add_outlines(int i, int depth, GtkTreeIter *base, GtkTreeStore *model)
{ GtkTreeIter iter;
while (i<=outlines_max)
{
//LOG("Outline[%d]: %s %d\n",i, outlines[i].title,outlines[i].depth);
if (outlines[i].depth<depth) return i;
if (outlines[i].depth==depth)
{ gtk_tree_store_append (model, &iter, base);
gtk_tree_store_set (model, &iter,
SECTION_COL, outlines[i].title,
LINK_COL, i,
-1);
i++;
}
else /* subitems */
i=add_outlines(i, outlines[i].depth, &iter,model);
}
return i;
}
/* create the tree view model and fill it with outlines */
static GtkTreeModel *
create_model (void)
{
GtkTreeStore *model;
outlines_max= hint_get_outline_max(); /*outlines numbered 0 to n*/
if (outlines_max<0)
{ return GTK_TREE_MODEL (NULL);
}
/* create tree store */
model = gtk_tree_store_new (NUM_COLUMNS,
G_TYPE_STRING,
G_TYPE_INT);
outlines=hint_get_outlines();
add_outlines(0, 0, NULL, model);
return GTK_TREE_MODEL (model);
}
/* call back: after a click to to an item show the corresponding page */
void
static cb_activated (
GtkTreeView* self,
GtkTreePath* path,
GtkTreeViewColumn* column,
gpointer user_data
)
{ char *s;
int l;
GtkTreeIter i;
GtkTreeModel* m;
m= gtk_tree_view_get_model(self);
gtk_tree_model_get_iter (m,&i,path);
gtk_tree_model_get (m,&i,SECTION_COL,&s,LINK_COL,&l,-1);
// LOG("Activated %s %d\n",s,l);
goto_outline(l);
}
/* call back: when the outline window closes, reset auxiliar variables */
static void cb_outlines_quit(void)
{ outlines=NULL;
outlines_max=-1;
tree_view=NULL;
// LOG("Quit Tree Store\n");
}
/* set the model in the outline window */
void
outlines_set(void)
{ GtkTreeModel *model;
if (outline_window==NULL) return;
if (tree_view==NULL) return;
model = create_model ();
gtk_tree_view_set_model(GTK_TREE_VIEW(tree_view), GTK_TREE_MODEL(model));
if (model!=NULL)
g_object_unref (model);
//LOG("Outline set\n");
}
/* clear the model in the outline window */
void
outlines_clear(void)
{ if (outline_window==NULL) return;
if (tree_view==NULL) return;
gtk_tree_view_set_model(GTK_TREE_VIEW(tree_view), NULL);
}
/* create the outline window */
void
outlines_open (GtkWidget *parent_widget)
{
if (!outline_window)
{
GtkWidget *vbox;
GtkWidget *scroll_window;
GtkCellRenderer *renderer;
GtkTreeViewColumn *column;
//LOG("Creating ts window\n");
/* create outline_window, etc */
outline_window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
gtk_window_set_screen (GTK_WINDOW (outline_window),
gtk_widget_get_screen (parent_widget));
gtk_window_set_title (GTK_WINDOW (outline_window), "Outline");
g_signal_connect (outline_window, "destroy",
G_CALLBACK (gtk_widget_destroyed), &outline_window);
g_signal_connect(outline_window, "destroy",
G_CALLBACK(cb_outlines_quit), NULL);
vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 8);
gtk_container_set_border_width (GTK_CONTAINER (vbox), 8);
gtk_container_add (GTK_CONTAINER (outline_window), vbox);
scroll_window = gtk_scrolled_window_new (NULL, NULL);
gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (scroll_window),
GTK_POLICY_AUTOMATIC,
GTK_POLICY_AUTOMATIC);
gtk_box_pack_start (GTK_BOX (vbox), scroll_window, TRUE, TRUE, 0);
/* adding the tree view */
tree_view = gtk_tree_view_new();
gtk_tree_selection_set_mode (gtk_tree_view_get_selection (GTK_TREE_VIEW (tree_view)),
GTK_SELECTION_SINGLE);
gtk_tree_view_set_headers_visible (GTK_TREE_VIEW (tree_view),FALSE);
g_signal_connect(tree_view, "row-activated", G_CALLBACK(cb_activated), NULL);
gtk_tree_view_set_activate_on_single_click (GTK_TREE_VIEW (tree_view), TRUE);
/* column for subsection names */
renderer = gtk_cell_renderer_text_new ();
g_object_set (renderer, "xalign", 0.0, NULL);
gtk_tree_view_insert_column_with_attributes (GTK_TREE_VIEW (tree_view),
SECTION_COL, "Sections",
renderer,
"text", SECTION_COL,
NULL);
column = gtk_tree_view_get_column (GTK_TREE_VIEW (tree_view), 0);
gtk_tree_view_column_set_clickable (GTK_TREE_VIEW_COLUMN (column), TRUE);
gtk_container_add (GTK_CONTAINER (scroll_window), tree_view);
gtk_window_set_default_size (GTK_WINDOW (outline_window), 300, 400);
}
outlines_set();
if (!gtk_widget_get_visible (outline_window))
gtk_widget_show_all (outline_window);
}
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