src/gtk/assertdlg_gtk.c

/* ///////////////////////////////////////////////////////////////////////////
// Name:        assertdlg_gtk.c
// Purpose:     GtkAssertDialog
// Author:      Francesco Montorsi
// Id:          $Id$
// Copyright:   (c) 2006 Francesco Montorsi
// Licence:     wxWindows licence
/////////////////////////////////////////////////////////////////////////// */

#ifdef VMS
#define XCheckIfEvent XCHECKIFEVENT
#endif

#include "wx/platform.h"
#include "wx/gtk/assertdlg_gtk.h"

#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */

#include <gtk/gtk.h>

/* For FILE */
#include <stdio.h>


#if GTK_CHECK_VERSION(2,4,0)
#include <gtk/gtkexpander.h>
#endif


/* ----------------------------------------------------------------------------
   Constants
 ---------------------------------------------------------------------------- */

// NB: when changing order of the columns also update the gtk_list_store_new() call
//     in gtk_assert_dialog_create_backtrace_list_model() function
#define STACKFRAME_LEVEL_COLIDX        0
#define FUNCTION_NAME_COLIDX           1
#define SOURCE_FILE_COLIDX             2
#define LINE_NUMBER_COLIDX             3
#define FUNCTION_ARGS_COLIDX           4


/* ----------------------------------------------------------------------------
   GtkAssertDialog helpers
 ---------------------------------------------------------------------------- */

GtkWidget *gtk_assert_dialog_add_button_to (GtkBox *box, const gchar *label,
                                            const gchar *stock, gint response_id)
{
    /* create the button */
    GtkWidget *button = gtk_button_new_with_mnemonic (label);
    GTK_WIDGET_SET_FLAGS (button, GTK_CAN_DEFAULT);

#if GTK_CHECK_VERSION(2,6,0)
    if (!gtk_check_version (2, 6, 0))
    {
        /* add a stock icon inside it */
        GtkWidget *image = gtk_image_new_from_stock (stock, GTK_ICON_SIZE_BUTTON);
        gtk_button_set_image (GTK_BUTTON (button), image);
    }
#endif

    /* add to the given (container) widget */
    if (box)
        gtk_box_pack_end (box, button, FALSE, TRUE, 8);

    return button;
}

GtkWidget *gtk_assert_dialog_add_button (GtkAssertDialog *dlg, const gchar *label,
                                         const gchar *stock, gint response_id)
{
    /* create the button */
    GtkWidget *button = gtk_assert_dialog_add_button_to (NULL, label, stock, response_id);

    /* add the button to the dialog's action area */
    gtk_dialog_add_action_widget (GTK_DIALOG (dlg), button, response_id);

    return button;
}

void gtk_assert_dialog_append_text_column (GtkWidget *treeview, const gchar *name, int index)
{
    GtkCellRenderer *renderer;
    GtkTreeViewColumn *column;

    renderer = gtk_cell_renderer_text_new ();
    column = gtk_tree_view_column_new_with_attributes (name, renderer,
                                                       "text", index, NULL);
    gtk_tree_view_insert_column (GTK_TREE_VIEW (treeview), column, index);
    gtk_tree_view_column_set_resizable (column, TRUE);
    gtk_tree_view_column_set_reorderable (column, TRUE);
}

GtkWidget *gtk_assert_dialog_create_backtrace_list_model ()
{
    GtkListStore *store;
    GtkWidget *treeview;

    /* create list store */
    store = gtk_list_store_new (5,
                                G_TYPE_UINT,        // stack frame number
                                G_TYPE_STRING,      // function name
                                G_TYPE_STRING,      // source file name
                                G_TYPE_STRING,      // line number
                                G_TYPE_STRING);     // function arguments

    /* create the tree view */
    treeview = gtk_tree_view_new_with_model (GTK_TREE_MODEL(store));
    g_object_unref (store);
    gtk_tree_view_set_rules_hint (GTK_TREE_VIEW (treeview), TRUE);

    // append columns
    gtk_assert_dialog_append_text_column(treeview, "#", STACKFRAME_LEVEL_COLIDX);
    gtk_assert_dialog_append_text_column(treeview, "Function name", FUNCTION_NAME_COLIDX);
    gtk_assert_dialog_append_text_column(treeview, "Function args", FUNCTION_ARGS_COLIDX);
    gtk_assert_dialog_append_text_column(treeview, "Source file", SOURCE_FILE_COLIDX);
    gtk_assert_dialog_append_text_column(treeview, "Line #", LINE_NUMBER_COLIDX);

    return treeview;
}

void gtk_assert_dialog_process_backtrace (GtkAssertDialog *dlg)
{
    /* set busy cursor */
    GdkWindow *parent = GTK_WIDGET(dlg)->window;
    GdkCursor *cur = gdk_cursor_new (GDK_WATCH);
    gdk_window_set_cursor (parent, cur);
    gdk_flush ();

    (*dlg->callback)(dlg->userdata);

    /* toggle busy cursor */
    gdk_window_set_cursor (parent, NULL);
    gdk_cursor_unref (cur);
}


/* ----------------------------------------------------------------------------
   GtkAssertDialog signal handlers
 ---------------------------------------------------------------------------- */

#if GTK_CHECK_VERSION(2,4,0)        // GtkFileChooserDialog and GtkExpander
                                    // are only available in GTK+ >= 2.4

void gtk_assert_dialog_expander_callback (GtkWidget *widget, GtkAssertDialog *dlg)
{
    // for some reason we need to invert the return value of gtk_expander_get_expanded
    // to get the real expanded status
    gboolean expanded = !gtk_expander_get_expanded (GTK_EXPANDER(dlg->expander));
    gtk_window_set_resizable (GTK_WINDOW (dlg), expanded);

    if (dlg->callback == NULL)      /* was the backtrace already processed? */
        return;

    gtk_assert_dialog_process_backtrace (dlg);

    /* mark the work as done (so that next activate we won't call the callback again) */
    dlg->callback = NULL;
}

void gtk_assert_dialog_save_backtrace_callback (GtkWidget *widget, GtkAssertDialog *dlg)
{
    GtkWidget *dialog;

    dialog = gtk_file_chooser_dialog_new ("Save assert info to file", GTK_WINDOW(dlg),
                                          GTK_FILE_CHOOSER_ACTION_SAVE,
                                          GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
                                          GTK_STOCK_SAVE, GTK_RESPONSE_ACCEPT,
                                          NULL);

    if (gtk_dialog_run (GTK_DIALOG (dialog)) == GTK_RESPONSE_ACCEPT)
    {
        char *filename, *msg, *backtrace;
        FILE *fp;

        filename = gtk_file_chooser_get_filename (GTK_FILE_CHOOSER (dialog));
        msg = gtk_assert_dialog_get_message (dlg);
        backtrace = gtk_assert_dialog_get_backtrace (dlg);

        /* open the file and write all info inside it */
        fp = fopen (filename, "w");
        if (fp && filename)
            fprintf (fp, "ASSERT INFO:\n%s\n\nBACKTRACE:\n%s", msg, backtrace);

        g_free (filename);
        g_free (msg);
        g_free (backtrace);
        fclose (fp);
    }

    gtk_widget_destroy (dialog);
}
#endif

void gtk_assert_dialog_copy_callback (GtkWidget *widget, GtkAssertDialog *dlg)
{
    char *msg, *backtrace;
    GtkClipboard *clipboard;
    GString *str;

    msg = gtk_assert_dialog_get_message (dlg);
    backtrace = gtk_assert_dialog_get_backtrace (dlg);

    /* combine both in a single string */
    str = g_string_new("");
    g_string_printf (str, "ASSERT INFO:\n%s\n\nBACKTRACE:\n%s\n\n", msg, backtrace);

    /* copy everything in default clipboard */
    clipboard = gtk_clipboard_get (GDK_SELECTION_CLIPBOARD);
    gtk_clipboard_set_text (clipboard, str->str, str->len);

    /* copy everything in primary clipboard too */
    clipboard = gtk_clipboard_get (GDK_SELECTION_PRIMARY);
    gtk_clipboard_set_text (clipboard, str->str, str->len);

    g_free (msg);
    g_free (backtrace);
    g_string_free (str, TRUE);
}

void gtk_assert_dialog_continue_callback (GtkWidget *widget, GtkAssertDialog *dlg)
{
    gint response =
        gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON(dlg->shownexttime)) ?
            GTK_ASSERT_DIALOG_CONTINUE : GTK_ASSERT_DIALOG_CONTINUE_SUPPRESSING;

    gtk_dialog_response (GTK_DIALOG(dlg), response);
}


/* ----------------------------------------------------------------------------
   GtkAssertDialogClass implementation
 ---------------------------------------------------------------------------- */

static void     gtk_assert_dialog_init              (GtkAssertDialog        *self);
static void     gtk_assert_dialog_class_init        (GtkAssertDialogClass *klass);


GtkType gtk_assert_dialog_get_type (void)
{
    static GtkType assert_dialog_type = 0;

    if (!assert_dialog_type)
    {
        const GTypeInfo assert_dialog_info =
        {
            sizeof (GtkAssertDialogClass),
            NULL,           /* base_init */
            NULL,           /* base_finalize */
            (GClassInitFunc) gtk_assert_dialog_class_init,
            NULL,           /* class_finalize */
            NULL,           /* class_data */
            sizeof (GtkAssertDialog),
            16,             /* n_preallocs */
            (GInstanceInitFunc) gtk_assert_dialog_init,
            NULL
        };
        assert_dialog_type = g_type_register_static (GTK_TYPE_DIALOG, "GtkAssertDialog", &assert_dialog_info, (GTypeFlags)0);
    }

    return assert_dialog_type;
}

void gtk_assert_dialog_class_init(GtkAssertDialogClass *klass)
{
    /* no special initializations required */
}

void gtk_assert_dialog_init(GtkAssertDialog *dlg)
{
    GtkWidget *vbox, *hbox, *image, *continuebtn;

    /* start the main vbox */
    gtk_widget_push_composite_child ();
    vbox = gtk_vbox_new (FALSE, 8);
    gtk_container_set_border_width (GTK_CONTAINER(vbox), 8);
    gtk_box_pack_start (GTK_BOX (GTK_DIALOG (dlg)->vbox), vbox, TRUE, TRUE, 5);


    /* add the icon+message hbox */
    hbox = gtk_hbox_new (FALSE, 0);
    gtk_box_pack_start (GTK_BOX(vbox), hbox, FALSE, FALSE, 0);

    /* icon */
    image = gtk_image_new_from_stock (GTK_STOCK_DIALOG_ERROR, GTK_ICON_SIZE_DIALOG);
    gtk_box_pack_start (GTK_BOX(hbox), image, FALSE, FALSE, 12);

    {
        GtkWidget *vbox2, *info;

        /* message */
        vbox2 = gtk_vbox_new (FALSE, 0);
        gtk_box_pack_start (GTK_BOX (hbox), vbox2, TRUE, TRUE, 0);
        info = gtk_label_new ("An assertion failed!");
        gtk_box_pack_start (GTK_BOX(vbox2), info, TRUE, TRUE, 8);

        /* assert message */
        dlg->message = gtk_label_new (NULL);
        gtk_label_set_selectable (GTK_LABEL (dlg->message), TRUE);
        gtk_label_set_line_wrap (GTK_LABEL (dlg->message), TRUE);
        gtk_label_set_justify (GTK_LABEL (dlg->message), GTK_JUSTIFY_LEFT);
        gtk_widget_set_size_request (GTK_WIDGET(dlg->message), 450, -1);

        gtk_box_pack_end (GTK_BOX(vbox2), GTK_WIDGET(dlg->message), TRUE, TRUE, 8);
    }

    /* add the expander */
#if GTK_CHECK_VERSION(2,4,0)
    if (!gtk_check_version (2, 4, 0))
    {
        dlg->expander = gtk_expander_new_with_mnemonic ("Back_trace:");
        gtk_box_pack_start (GTK_BOX(vbox), dlg->expander, TRUE, TRUE, 0);
        g_signal_connect (GTK_EXPANDER(dlg->expander), "activate",
                          G_CALLBACK(gtk_assert_dialog_expander_callback), dlg);
    }
    else
#endif
    {
        // if GtkExpander is unavailable, then use a static frame instead
        dlg->expander = gtk_frame_new ("Back_trace:");
        gtk_box_pack_start (GTK_BOX(vbox), dlg->expander, TRUE, TRUE, 0);
    }

    {
        GtkWidget *hbox, *vbox, *button, *sw;

        /* create expander's vbox */
        vbox = gtk_vbox_new (FALSE, 0);
        gtk_container_add (GTK_CONTAINER (dlg->expander), vbox);

        /* add a scrollable window under the expander */
        sw = gtk_scrolled_window_new (NULL, NULL);
        gtk_scrolled_window_set_shadow_type (GTK_SCROLLED_WINDOW (sw), GTK_SHADOW_ETCHED_IN);
        gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (sw), GTK_POLICY_AUTOMATIC,
                                        GTK_POLICY_AUTOMATIC);
        gtk_box_pack_start (GTK_BOX(vbox), sw, TRUE, TRUE, 8);

        /* add the treeview to the scrollable window */
        dlg->treeview = gtk_assert_dialog_create_backtrace_list_model ();
        gtk_widget_set_size_request (GTK_WIDGET(dlg->treeview), -1, 180);
        gtk_container_add (GTK_CONTAINER (sw), dlg->treeview);

        /* create button's hbox */
        hbox = gtk_hbutton_box_new ();
        gtk_box_pack_end (GTK_BOX(vbox), hbox, FALSE, FALSE, 0);
        gtk_button_box_set_layout (GTK_BUTTON_BOX(hbox), GTK_BUTTONBOX_END);

        /* add the buttons */
#if GTK_CHECK_VERSION(2,4,0)
        if (!gtk_check_version (2, 4, 0))
        {
            /* add this button only if GTK supports GtkFileChooserDialog */
            button = gtk_assert_dialog_add_button_to (GTK_BOX(hbox), "Save to _file",
                                                    GTK_STOCK_SAVE, GTK_RESPONSE_NONE);
            g_signal_connect (button, "clicked",
                              G_CALLBACK(gtk_assert_dialog_save_backtrace_callback), dlg);
        }
#endif

        button = gtk_assert_dialog_add_button_to (GTK_BOX(hbox), "Copy to clip_board",
                                                  GTK_STOCK_COPY, GTK_RESPONSE_NONE);
        g_signal_connect (button, "clicked", G_CALLBACK(gtk_assert_dialog_copy_callback), dlg);
    }

    /* add the checkbutton */
    dlg->shownexttime = gtk_check_button_new_with_mnemonic("Show this _dialog the next time");
    gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON(dlg->shownexttime), TRUE);
    gtk_box_pack_end (GTK_BOX(GTK_DIALOG(dlg)->action_area), dlg->shownexttime, FALSE, TRUE, 8);

    /* add the stop button */
    gtk_assert_dialog_add_button (dlg, "_Stop", GTK_STOCK_QUIT, GTK_ASSERT_DIALOG_STOP);

    /* add the continue button */
    continuebtn = gtk_assert_dialog_add_button (dlg, "_Continue", GTK_STOCK_YES, GTK_ASSERT_DIALOG_CONTINUE);
    gtk_dialog_set_default_response (GTK_DIALOG (dlg), GTK_ASSERT_DIALOG_CONTINUE);
    g_signal_connect (continuebtn, "clicked", G_CALLBACK(gtk_assert_dialog_continue_callback), dlg);

    /* complete creation */
    dlg->callback = NULL;
    dlg->userdata = NULL;

    /* the resizeable property of this window is modified by the expander:
       when it's collapsed, the window must be non-resizeable! */
    gtk_window_set_resizable (GTK_WINDOW (dlg), FALSE);
    gtk_widget_pop_composite_child ();
    gtk_widget_show_all (GTK_WIDGET(dlg));
}


/* ----------------------------------------------------------------------------
   GtkAssertDialog public API
 ---------------------------------------------------------------------------- */

gchar *gtk_assert_dialog_get_message (GtkAssertDialog *dlg)
{
    /* NOTES:
       1) returned string must g_free()d !
       2) Pango markup is automatically stripped off by GTK
    */
    return g_strdup (gtk_label_get_text (GTK_LABEL(dlg->message)));
}

gchar *gtk_assert_dialog_get_backtrace (GtkAssertDialog *dlg)
{
    gchar *function, *arguments, *sourcefile, *linenum;
    guint count;

    GtkTreeModel *model;
    GtkTreeIter iter;
    GString *string;

    g_return_val_if_fail (GTK_IS_ASSERT_DIALOG (dlg), NULL);
    model = gtk_tree_view_get_model (GTK_TREE_VIEW(dlg->treeview));
    string = g_string_new("");

    /* iterate over the list */
    if (!gtk_tree_model_get_iter_first (model, &iter))
        return NULL;

    do
    {
        /* append this stack frame's info to the string */
        gtk_tree_model_get (model, &iter,
                            STACKFRAME_LEVEL_COLIDX, &count,
                            FUNCTION_NAME_COLIDX, &function,
                            FUNCTION_ARGS_COLIDX, &arguments,
                            SOURCE_FILE_COLIDX, &sourcefile,
                            LINE_NUMBER_COLIDX, &linenum,
                            -1);

        g_string_append_printf (string, "[%d] %s(%s)",
                                count, function, arguments);
        if (sourcefile[0] != '\0')
            g_string_append_printf (string, " %s", sourcefile);
        if (linenum[0] != '\0')
            g_string_append_printf (string, ":%s", linenum);
        g_string_append (string, "\n");

        g_free (function);
        g_free (arguments);
        g_free (sourcefile);
        g_free (linenum);

    } while (gtk_tree_model_iter_next (model, &iter));

    /* returned string must g_free()d */
    return g_string_free (string, FALSE);
}

void gtk_assert_dialog_set_message(GtkAssertDialog *dlg, const gchar *msg)
{
    /* prepend and append the <b> tag
       NOTE: g_markup_printf_escaped() is not used because it's available
             only for glib >= 2.4 */
    gchar *escaped_msg = g_markup_escape_text (msg, -1);
    gchar *decorated_msg = g_strdup_printf ("<b>%s</b>", escaped_msg);

    g_return_if_fail (GTK_IS_ASSERT_DIALOG (dlg));
    gtk_label_set_markup (GTK_LABEL(dlg->message), decorated_msg);

    g_free (decorated_msg);
    g_free (escaped_msg);
}

void gtk_assert_dialog_set_backtrace_callback(GtkAssertDialog *assertdlg,
                                              GtkAssertDialogStackFrameCallback callback,
                                              void *userdata)
{
    assertdlg->callback = callback;
    assertdlg->userdata = userdata;

    if (gtk_check_version (2, 4, 0))
    {
        // we need to immediately process the stack trace as we're not using
        // an expander since GTK does not support it
        gtk_assert_dialog_process_backtrace (assertdlg);
    }
}

void gtk_assert_dialog_append_stack_frame(GtkAssertDialog *dlg,
                                          const gchar *function,
                                          const gchar *arguments,
                                          const gchar *sourcefile,
                                          guint line_number)
{
    GtkTreeModel *model;
    GtkTreeIter iter;
    GString *linenum;
    gint count;

    g_return_if_fail (GTK_IS_ASSERT_DIALOG (dlg));
    model = gtk_tree_view_get_model (GTK_TREE_VIEW(dlg->treeview));

    /* how many items are in the list up to now ? */
    count = gtk_tree_model_iter_n_children (model, NULL);

    linenum = g_string_new("");
    if ( line_number != 0 )
        g_string_printf (linenum, "%d", line_number);

    /* add data to the list store */
    gtk_list_store_append (GTK_LIST_STORE(model), &iter);
    gtk_list_store_set (GTK_LIST_STORE(model), &iter,
                        STACKFRAME_LEVEL_COLIDX, count+1,     /* start from 1 and not from 0 */
                        FUNCTION_NAME_COLIDX, function,
                        FUNCTION_ARGS_COLIDX, arguments,
                        SOURCE_FILE_COLIDX, sourcefile,
                        LINE_NUMBER_COLIDX, linenum->str,
                        -1);

    g_string_free (linenum, TRUE);
}

GtkWidget *gtk_assert_dialog_new(void)
{
    GtkAssertDialog *dialog = g_object_new (GTK_TYPE_ASSERT_DIALOG, NULL);

    return GTK_WIDGET (dialog);
}

#ifdef __cplusplus
}
#endif /* __cplusplus */
Commit	Line	Data
	1	/* ///////////////////////////////////////////////////////////////////////////
	2	// Name: assertdlg_gtk.c
	3	// Purpose: GtkAssertDialog
	4	// Author: Francesco Montorsi
	5	// Id: $Id$
	6	// Copyright: (c) 2006 Francesco Montorsi
	7	// Licence: wxWindows licence
	8	/////////////////////////////////////////////////////////////////////////// */
	9
	10	#ifdef VMS
	11	#define XCheckIfEvent XCHECKIFEVENT
	12	#endif
	13
	14	#include "wx/platform.h"
	15	#include "wx/gtk/assertdlg_gtk.h"
	16
	17	#ifdef __cplusplus
	18	extern "C" {
	19	#endif /* __cplusplus */
	20
	21	#include <gtk/gtk.h>
	22
	23	/* For FILE */
	24	#include <stdio.h>
	25
	26
	27	#if GTK_CHECK_VERSION(2,4,0)
	28	#include <gtk/gtkexpander.h>
	29	#endif
	30
	31
	32	/* ----------------------------------------------------------------------------
	33	Constants
	34	---------------------------------------------------------------------------- */
	35
	36	// NB: when changing order of the columns also update the gtk_list_store_new() call
	37	// in gtk_assert_dialog_create_backtrace_list_model() function
	38	#define STACKFRAME_LEVEL_COLIDX 0
	39	#define FUNCTION_NAME_COLIDX 1
	40	#define SOURCE_FILE_COLIDX 2
	41	#define LINE_NUMBER_COLIDX 3
	42	#define FUNCTION_ARGS_COLIDX 4
	43
	44
	45
	46
	47	/* ----------------------------------------------------------------------------
	48	GtkAssertDialog helpers
	49	---------------------------------------------------------------------------- */
	50
	51	GtkWidget gtk_assert_dialog_add_button_to (GtkBox box, const gchar *label,
	52	const gchar *stock, gint response_id)
	53	{
	54	/* create the button */
	55	GtkWidget *button = gtk_button_new_with_mnemonic (label);
	56	GTK_WIDGET_SET_FLAGS (button, GTK_CAN_DEFAULT);
	57
	58	#if GTK_CHECK_VERSION(2,6,0)
	59	if (!gtk_check_version (2, 6, 0))
	60	{
	61	/* add a stock icon inside it */
	62	GtkWidget *image = gtk_image_new_from_stock (stock, GTK_ICON_SIZE_BUTTON);
	63	gtk_button_set_image (GTK_BUTTON (button), image);
	64	}
	65	#endif
	66
	67	/* add to the given (container) widget */
	68	if (box)
	69	gtk_box_pack_end (box, button, FALSE, TRUE, 8);
	70
	71	return button;
	72	}
	73
	74	GtkWidget gtk_assert_dialog_add_button (GtkAssertDialog dlg, const gchar *label,
	75	const gchar *stock, gint response_id)
	76	{
	77	/* create the button */
	78	GtkWidget *button = gtk_assert_dialog_add_button_to (NULL, label, stock, response_id);
	79
	80	/* add the button to the dialog's action area */
	81	gtk_dialog_add_action_widget (GTK_DIALOG (dlg), button, response_id);
	82
	83	return button;
	84	}
	85
	86	void gtk_assert_dialog_append_text_column (GtkWidget treeview, const gchar name, int index)
	87	{
	88	GtkCellRenderer *renderer;
	89	GtkTreeViewColumn *column;
	90
	91	renderer = gtk_cell_renderer_text_new ();
	92	column = gtk_tree_view_column_new_with_attributes (name, renderer,
	93	"text", index, NULL);
	94	gtk_tree_view_insert_column (GTK_TREE_VIEW (treeview), column, index);
	95	gtk_tree_view_column_set_resizable (column, TRUE);
	96	gtk_tree_view_column_set_reorderable (column, TRUE);
	97	}
	98
	99	GtkWidget *gtk_assert_dialog_create_backtrace_list_model ()
	100	{
	101	GtkListStore *store;
	102	GtkWidget *treeview;
	103
	104	/* create list store */
	105	store = gtk_list_store_new (5,
	106	G_TYPE_UINT, // stack frame number
	107	G_TYPE_STRING, // function name
	108	G_TYPE_STRING, // source file name
	109	G_TYPE_STRING, // line number
	110	G_TYPE_STRING); // function arguments
	111
	112	/* create the tree view */
	113	treeview = gtk_tree_view_new_with_model (GTK_TREE_MODEL(store));
	114	g_object_unref (store);
	115	gtk_tree_view_set_rules_hint (GTK_TREE_VIEW (treeview), TRUE);
	116
	117	// append columns
	118	gtk_assert_dialog_append_text_column(treeview, "#", STACKFRAME_LEVEL_COLIDX);
	119	gtk_assert_dialog_append_text_column(treeview, "Function name", FUNCTION_NAME_COLIDX);
	120	gtk_assert_dialog_append_text_column(treeview, "Function args", FUNCTION_ARGS_COLIDX);
	121	gtk_assert_dialog_append_text_column(treeview, "Source file", SOURCE_FILE_COLIDX);
	122	gtk_assert_dialog_append_text_column(treeview, "Line #", LINE_NUMBER_COLIDX);
	123
	124	return treeview;
	125	}
	126
	127	void gtk_assert_dialog_process_backtrace (GtkAssertDialog *dlg)
	128	{
	129	/* set busy cursor */
	130	GdkWindow *parent = GTK_WIDGET(dlg)->window;
	131	GdkCursor *cur = gdk_cursor_new (GDK_WATCH);
	132	gdk_window_set_cursor (parent, cur);
	133	gdk_flush ();
	134
	135	(*dlg->callback)(dlg->userdata);
	136
	137	/* toggle busy cursor */
	138	gdk_window_set_cursor (parent, NULL);
	139	gdk_cursor_unref (cur);
	140	}
	141
	142
	143
	144	/* ----------------------------------------------------------------------------
	145	GtkAssertDialog signal handlers
	146	---------------------------------------------------------------------------- */
	147
	148	#if GTK_CHECK_VERSION(2,4,0) // GtkFileChooserDialog and GtkExpander
	149	// are only available in GTK+ >= 2.4
	150
	151	void gtk_assert_dialog_expander_callback (GtkWidget widget, GtkAssertDialog dlg)
	152	{
	153	// for some reason we need to invert the return value of gtk_expander_get_expanded
	154	// to get the real expanded status
	155	gboolean expanded = !gtk_expander_get_expanded (GTK_EXPANDER(dlg->expander));
	156	gtk_window_set_resizable (GTK_WINDOW (dlg), expanded);
	157
	158	if (dlg->callback == NULL) /* was the backtrace already processed? */
	159	return;
	160
	161	gtk_assert_dialog_process_backtrace (dlg);
	162
	163	/* mark the work as done (so that next activate we won't call the callback again) */
	164	dlg->callback = NULL;
	165	}
	166
	167	void gtk_assert_dialog_save_backtrace_callback (GtkWidget widget, GtkAssertDialog dlg)
	168	{
	169	GtkWidget *dialog;
	170
	171	dialog = gtk_file_chooser_dialog_new ("Save assert info to file", GTK_WINDOW(dlg),
	172	GTK_FILE_CHOOSER_ACTION_SAVE,
	173	GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
	174	GTK_STOCK_SAVE, GTK_RESPONSE_ACCEPT,
	175	NULL);
	176
	177	if (gtk_dialog_run (GTK_DIALOG (dialog)) == GTK_RESPONSE_ACCEPT)
	178	{
	179	char filename, msg, *backtrace;
	180	FILE *fp;
	181
	182	filename = gtk_file_chooser_get_filename (GTK_FILE_CHOOSER (dialog));
	183	msg = gtk_assert_dialog_get_message (dlg);
	184	backtrace = gtk_assert_dialog_get_backtrace (dlg);
	185
	186	/* open the file and write all info inside it */
	187	fp = fopen (filename, "w");
	188	if (fp && filename)
	189	fprintf (fp, "ASSERT INFO:\n%s\n\nBACKTRACE:\n%s", msg, backtrace);
	190
	191	g_free (filename);
	192	g_free (msg);
	193	g_free (backtrace);
	194	fclose (fp);
	195	}
	196
	197	gtk_widget_destroy (dialog);
	198	}
	199	#endif
	200
	201	void gtk_assert_dialog_copy_callback (GtkWidget widget, GtkAssertDialog dlg)
	202	{
	203	char msg, backtrace;
	204	GtkClipboard *clipboard;
	205	GString *str;
	206
	207	msg = gtk_assert_dialog_get_message (dlg);
	208	backtrace = gtk_assert_dialog_get_backtrace (dlg);
	209
	210	/* combine both in a single string */
	211	str = g_string_new("");
	212	g_string_printf (str, "ASSERT INFO:\n%s\n\nBACKTRACE:\n%s\n\n", msg, backtrace);
	213
	214	/* copy everything in default clipboard */
	215	clipboard = gtk_clipboard_get (GDK_SELECTION_CLIPBOARD);
	216	gtk_clipboard_set_text (clipboard, str->str, str->len);
	217
	218	/* copy everything in primary clipboard too */
	219	clipboard = gtk_clipboard_get (GDK_SELECTION_PRIMARY);
	220	gtk_clipboard_set_text (clipboard, str->str, str->len);
	221
	222	g_free (msg);
	223	g_free (backtrace);
	224	g_string_free (str, TRUE);
	225	}
	226
	227	void gtk_assert_dialog_continue_callback (GtkWidget widget, GtkAssertDialog dlg)
	228	{
	229	gint response =
	230	gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON(dlg->shownexttime)) ?
	231	GTK_ASSERT_DIALOG_CONTINUE : GTK_ASSERT_DIALOG_CONTINUE_SUPPRESSING;
	232
	233	gtk_dialog_response (GTK_DIALOG(dlg), response);
	234	}
	235
	236
	237	/* ----------------------------------------------------------------------------
	238	GtkAssertDialogClass implementation
	239	---------------------------------------------------------------------------- */
	240
	241	static void gtk_assert_dialog_init (GtkAssertDialog *self);
	242	static void gtk_assert_dialog_class_init (GtkAssertDialogClass *klass);
	243
	244
	245	GtkType gtk_assert_dialog_get_type (void)
	246	{
	247	static GtkType assert_dialog_type = 0;
	248
	249	if (!assert_dialog_type)
	250	{
	251	const GTypeInfo assert_dialog_info =
	252	{
	253	sizeof (GtkAssertDialogClass),
	254	NULL, /* base_init */
	255	NULL, /* base_finalize */
	256	(GClassInitFunc) gtk_assert_dialog_class_init,
	257	NULL, /* class_finalize */
	258	NULL, /* class_data */
	259	sizeof (GtkAssertDialog),
	260	16, /* n_preallocs */
	261	(GInstanceInitFunc) gtk_assert_dialog_init,
	262	NULL
	263	};
	264	assert_dialog_type = g_type_register_static (GTK_TYPE_DIALOG, "GtkAssertDialog", &assert_dialog_info, (GTypeFlags)0);
	265	}
	266
	267	return assert_dialog_type;
	268	}
	269
	270	void gtk_assert_dialog_class_init(GtkAssertDialogClass *klass)
	271	{
	272	/* no special initializations required */
	273	}
	274
	275	void gtk_assert_dialog_init(GtkAssertDialog *dlg)
	276	{
	277	GtkWidget vbox, hbox, image, continuebtn;
	278
	279	/* start the main vbox */
	280	gtk_widget_push_composite_child ();
	281	vbox = gtk_vbox_new (FALSE, 8);
	282	gtk_container_set_border_width (GTK_CONTAINER(vbox), 8);
	283	gtk_box_pack_start (GTK_BOX (GTK_DIALOG (dlg)->vbox), vbox, TRUE, TRUE, 5);
	284
	285
	286	/* add the icon+message hbox */
	287	hbox = gtk_hbox_new (FALSE, 0);
	288	gtk_box_pack_start (GTK_BOX(vbox), hbox, FALSE, FALSE, 0);
	289
	290	/* icon */
	291	image = gtk_image_new_from_stock (GTK_STOCK_DIALOG_ERROR, GTK_ICON_SIZE_DIALOG);
	292	gtk_box_pack_start (GTK_BOX(hbox), image, FALSE, FALSE, 12);
	293
	294	{
	295	GtkWidget vbox2, info;
	296
	297	/* message */
	298	vbox2 = gtk_vbox_new (FALSE, 0);
	299	gtk_box_pack_start (GTK_BOX (hbox), vbox2, TRUE, TRUE, 0);
	300	info = gtk_label_new ("An assertion failed!");
	301	gtk_box_pack_start (GTK_BOX(vbox2), info, TRUE, TRUE, 8);
	302
	303	/* assert message */
	304	dlg->message = gtk_label_new (NULL);
	305	gtk_label_set_selectable (GTK_LABEL (dlg->message), TRUE);
	306	gtk_label_set_line_wrap (GTK_LABEL (dlg->message), TRUE);
	307	gtk_label_set_justify (GTK_LABEL (dlg->message), GTK_JUSTIFY_LEFT);
	308	gtk_widget_set_size_request (GTK_WIDGET(dlg->message), 450, -1);
	309
	310	gtk_box_pack_end (GTK_BOX(vbox2), GTK_WIDGET(dlg->message), TRUE, TRUE, 8);
	311	}
	312
	313	/* add the expander */
	314	#if GTK_CHECK_VERSION(2,4,0)
	315	if (!gtk_check_version (2, 4, 0))
	316	{
	317	dlg->expander = gtk_expander_new_with_mnemonic ("Back_trace:");
	318	gtk_box_pack_start (GTK_BOX(vbox), dlg->expander, TRUE, TRUE, 0);
	319	g_signal_connect (GTK_EXPANDER(dlg->expander), "activate",
	320	G_CALLBACK(gtk_assert_dialog_expander_callback), dlg);
	321	}
	322	else
	323	#endif
	324	{
	325	// if GtkExpander is unavailable, then use a static frame instead
	326	dlg->expander = gtk_frame_new ("Back_trace:");
	327	gtk_box_pack_start (GTK_BOX(vbox), dlg->expander, TRUE, TRUE, 0);
	328	}
	329
	330	{
	331	GtkWidget hbox, vbox, button, sw;
	332
	333	/* create expander's vbox */
	334	vbox = gtk_vbox_new (FALSE, 0);
	335	gtk_container_add (GTK_CONTAINER (dlg->expander), vbox);
	336
	337	/* add a scrollable window under the expander */
	338	sw = gtk_scrolled_window_new (NULL, NULL);
	339	gtk_scrolled_window_set_shadow_type (GTK_SCROLLED_WINDOW (sw), GTK_SHADOW_ETCHED_IN);
	340	gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (sw), GTK_POLICY_AUTOMATIC,
	341	GTK_POLICY_AUTOMATIC);
	342	gtk_box_pack_start (GTK_BOX(vbox), sw, TRUE, TRUE, 8);
	343
	344	/* add the treeview to the scrollable window */
	345	dlg->treeview = gtk_assert_dialog_create_backtrace_list_model ();
	346	gtk_widget_set_size_request (GTK_WIDGET(dlg->treeview), -1, 180);
	347	gtk_container_add (GTK_CONTAINER (sw), dlg->treeview);
	348
	349	/* create button's hbox */
	350	hbox = gtk_hbutton_box_new ();
	351	gtk_box_pack_end (GTK_BOX(vbox), hbox, FALSE, FALSE, 0);
	352	gtk_button_box_set_layout (GTK_BUTTON_BOX(hbox), GTK_BUTTONBOX_END);
	353
	354	/* add the buttons */
	355	#if GTK_CHECK_VERSION(2,4,0)
	356	if (!gtk_check_version (2, 4, 0))
	357	{
	358	/* add this button only if GTK supports GtkFileChooserDialog */
	359	button = gtk_assert_dialog_add_button_to (GTK_BOX(hbox), "Save to _file",
	360	GTK_STOCK_SAVE, GTK_RESPONSE_NONE);
	361	g_signal_connect (button, "clicked",
	362	G_CALLBACK(gtk_assert_dialog_save_backtrace_callback), dlg);
	363	}
	364	#endif
	365
	366	button = gtk_assert_dialog_add_button_to (GTK_BOX(hbox), "Copy to clip_board",
	367	GTK_STOCK_COPY, GTK_RESPONSE_NONE);
	368	g_signal_connect (button, "clicked", G_CALLBACK(gtk_assert_dialog_copy_callback), dlg);
	369	}
	370
	371	/* add the checkbutton */
	372	dlg->shownexttime = gtk_check_button_new_with_mnemonic("Show this _dialog the next time");
	373	gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON(dlg->shownexttime), TRUE);
	374	gtk_box_pack_end (GTK_BOX(GTK_DIALOG(dlg)->action_area), dlg->shownexttime, FALSE, TRUE, 8);
	375
	376	/* add the stop button */
	377	gtk_assert_dialog_add_button (dlg, "_Stop", GTK_STOCK_QUIT, GTK_ASSERT_DIALOG_STOP);
	378
	379	/* add the continue button */
	380	continuebtn = gtk_assert_dialog_add_button (dlg, "_Continue", GTK_STOCK_YES, GTK_ASSERT_DIALOG_CONTINUE);
	381	gtk_dialog_set_default_response (GTK_DIALOG (dlg), GTK_ASSERT_DIALOG_CONTINUE);
	382	g_signal_connect (continuebtn, "clicked", G_CALLBACK(gtk_assert_dialog_continue_callback), dlg);
	383
	384	/* complete creation */
	385	dlg->callback = NULL;
	386	dlg->userdata = NULL;
	387
	388	/* the resizeable property of this window is modified by the expander:
	389	when it's collapsed, the window must be non-resizeable! */
	390	gtk_window_set_resizable (GTK_WINDOW (dlg), FALSE);
	391	gtk_widget_pop_composite_child ();
	392	gtk_widget_show_all (GTK_WIDGET(dlg));
	393	}
	394
	395
	396
	397	/* ----------------------------------------------------------------------------
	398	GtkAssertDialog public API
	399	---------------------------------------------------------------------------- */
	400
	401	gchar gtk_assert_dialog_get_message (GtkAssertDialog dlg)
	402	{
	403	/* NOTES:
	404	1) returned string must g_free()d !
	405	2) Pango markup is automatically stripped off by GTK
	406	*/
	407	return g_strdup (gtk_label_get_text (GTK_LABEL(dlg->message)));
	408	}
	409
	410	gchar gtk_assert_dialog_get_backtrace (GtkAssertDialog dlg)
	411	{
	412	gchar function, arguments, sourcefile, linenum;
	413	guint count;
	414
	415	GtkTreeModel *model;
	416	GtkTreeIter iter;
	417	GString *string;
	418
	419	g_return_val_if_fail (GTK_IS_ASSERT_DIALOG (dlg), NULL);
	420	model = gtk_tree_view_get_model (GTK_TREE_VIEW(dlg->treeview));
	421	string = g_string_new("");
	422
	423	/* iterate over the list */
	424	if (!gtk_tree_model_get_iter_first (model, &iter))
	425	return NULL;
	426
	427	do
	428	{
	429	/* append this stack frame's info to the string */
	430	gtk_tree_model_get (model, &iter,
	431	STACKFRAME_LEVEL_COLIDX, &count,
	432	FUNCTION_NAME_COLIDX, &function,
	433	FUNCTION_ARGS_COLIDX, &arguments,
	434	SOURCE_FILE_COLIDX, &sourcefile,
	435	LINE_NUMBER_COLIDX, &linenum,
	436	-1);
	437
	438	g_string_append_printf (string, "[%d] %s(%s)",
	439	count, function, arguments);
	440	if (sourcefile[0] != '\0')
	441	g_string_append_printf (string, " %s", sourcefile);
	442	if (linenum[0] != '\0')
	443	g_string_append_printf (string, ":%s", linenum);
	444	g_string_append (string, "\n");
	445
	446	g_free (function);
	447	g_free (arguments);
	448	g_free (sourcefile);
	449	g_free (linenum);
	450
	451	} while (gtk_tree_model_iter_next (model, &iter));
	452
	453	/* returned string must g_free()d */
	454	return g_string_free (string, FALSE);
	455	}
	456
	457	void gtk_assert_dialog_set_message(GtkAssertDialog dlg, const gchar msg)
	458	{
	459	/* prepend and append the <b> tag
	460	NOTE: g_markup_printf_escaped() is not used because it's available
	461	only for glib >= 2.4 */
	462	gchar *escaped_msg = g_markup_escape_text (msg, -1);
	463	gchar *decorated_msg = g_strdup_printf ("<b>%s</b>", escaped_msg);
	464
	465	g_return_if_fail (GTK_IS_ASSERT_DIALOG (dlg));
	466	gtk_label_set_markup (GTK_LABEL(dlg->message), decorated_msg);
	467
	468	g_free (decorated_msg);
	469	g_free (escaped_msg);
	470	}
	471
	472	void gtk_assert_dialog_set_backtrace_callback(GtkAssertDialog *assertdlg,
	473	GtkAssertDialogStackFrameCallback callback,
	474	void *userdata)
	475	{
	476	assertdlg->callback = callback;
	477	assertdlg->userdata = userdata;
	478
	479	if (gtk_check_version (2, 4, 0))
	480	{
	481	// we need to immediately process the stack trace as we're not using
	482	// an expander since GTK does not support it
	483	gtk_assert_dialog_process_backtrace (assertdlg);
	484	}
	485	}
	486
	487	void gtk_assert_dialog_append_stack_frame(GtkAssertDialog *dlg,
	488	const gchar *function,
	489	const gchar *arguments,
	490	const gchar *sourcefile,
	491	guint line_number)
	492	{
	493	GtkTreeModel *model;
	494	GtkTreeIter iter;
	495	GString *linenum;
	496	gint count;
	497
	498	g_return_if_fail (GTK_IS_ASSERT_DIALOG (dlg));
	499	model = gtk_tree_view_get_model (GTK_TREE_VIEW(dlg->treeview));
	500
	501	/* how many items are in the list up to now ? */
	502	count = gtk_tree_model_iter_n_children (model, NULL);
	503
	504	linenum = g_string_new("");
	505	if ( line_number != 0 )
	506	g_string_printf (linenum, "%d", line_number);
	507
	508	/* add data to the list store */
	509	gtk_list_store_append (GTK_LIST_STORE(model), &iter);
	510	gtk_list_store_set (GTK_LIST_STORE(model), &iter,
	511	STACKFRAME_LEVEL_COLIDX, count+1, /* start from 1 and not from 0 */
	512	FUNCTION_NAME_COLIDX, function,
	513	FUNCTION_ARGS_COLIDX, arguments,
	514	SOURCE_FILE_COLIDX, sourcefile,
	515	LINE_NUMBER_COLIDX, linenum->str,
	516	-1);
	517
	518	g_string_free (linenum, TRUE);
	519	}
	520
	521	GtkWidget *gtk_assert_dialog_new(void)
	522	{
	523	GtkAssertDialog *dialog = g_object_new (GTK_TYPE_ASSERT_DIALOG, NULL);
	524
	525	return GTK_WIDGET (dialog);
	526	}
	527
	528	#ifdef __cplusplus
	529	}
	530	#endif /* __cplusplus */