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gtk_goto.c
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#include "gtk_goto.h"
/* globals to avoid storage in kwinst */
static GtkWidget *gotowin;
static GtkWidget *spinbtn;
static GtkTextMark *new_pos;
/* goto keypress handler */
static gboolean on_goto_keypress (GtkWidget *widget, GdkEventKey *event,
kwinst *app)
{
switch (event->keyval)
{
case GDK_KEY_Escape:
goto_btnclose (widget, app);
// return TRUE; /* return TRUE - no further processing */
break;
case GDK_KP_Enter: /* toggle focus to set value in spinbtn */
gtk_widget_child_focus (gotowin, GTK_DIR_RIGHT);
gtk_widget_child_focus (gotowin, GTK_DIR_LEFT);
goto_btnfind (widget, app);
return TRUE;
case GDK_Return:
gtk_widget_child_focus (gotowin, GTK_DIR_RIGHT);
gtk_widget_child_focus (gotowin, GTK_DIR_LEFT);
goto_btnfind (widget, app);
goto_btnclose (widget, app);
return TRUE;
}
return FALSE;
}
GtkWidget *create_goto_dlg (kwinst *app)
{
GtkWidget *vbox; /* vbox container */
GtkWidget *adjhbox;
GtkWidget *adjvbox;
GtkWidget *hbox;
GtkWidget *image;
GtkWidget *btnfind;
GtkWidget *btnclose;
GtkWidget *label;
GtkWidget *vscale;
gint line = app->line;
// gint line = gtk_text_iter_get_line (iter);
gint last = gtk_text_buffer_get_line_count (GTK_TEXT_BUFFER(app->buffer));
/* initialize persistent variables */
new_pos = NULL;
/* value, lower, upper, step_increment, page_increment, page_size
* (as with statusbar, the value is line + 1)
*/
GtkObject *adj = gtk_adjustment_new (line+1, 0.0, last, 1.0, 1.0, 0.0);
gchar *str = "\nKeyboard Shortcuts:\n<b>Enter</b> - goto/close dlg.\n<b>KP_Enter</b> - multi-goto.";
if (last == 1) {
show_info_bar_markup_ok ("insufficient number of lines in buffer (nowhere to go to).",
GTK_MESSAGE_INFO, app);
// err_dialog ("Error:\n\ninsufficient lines in buffer.");
return NULL;
}
/* create toplevel window */
if (!(gotowin = gtk_window_new (GTK_WINDOW_TOPLEVEL))) {
show_info_bar_markup_ok ("create_find_dlg() gtk_window_new failure.",
GTK_MESSAGE_ERROR, app);
// err_dialog ("create_find_dlg() gtk_window_new failure.");
return NULL;
}
gtk_window_set_position (GTK_WINDOW (gotowin), GTK_WIN_POS_CENTER);
gtk_window_set_default_size (GTK_WINDOW (gotowin), 185, 185);
gtk_window_set_title (GTK_WINDOW (gotowin), "Goto Line");
gtk_window_set_modal (GTK_WINDOW(gotowin), TRUE);
gtk_window_set_transient_for (GTK_WINDOW(gotowin),
GTK_WINDOW(app->window));
gtk_container_set_border_width (GTK_CONTAINER (gotowin), 5);
g_signal_connect (gotowin, "destroy",
G_CALLBACK (goto_btnclose), app);
/* main vbox container
* spacing profided on frames as containers */
vbox = gtk_vbox_new (FALSE, 0);
gtk_container_add (GTK_CONTAINER (gotowin), vbox);
gtk_widget_show (vbox);
adjhbox = gtk_hbox_new (FALSE, 0);
gtk_container_add (GTK_CONTAINER (vbox), adjhbox);
adjvbox = gtk_vbox_new (FALSE, 0);
gtk_container_add (GTK_CONTAINER (adjhbox), adjvbox);
image = gtk_image_new_from_stock (GTK_STOCK_INDEX, GTK_ICON_SIZE_DND);
gtk_box_pack_start (GTK_BOX (adjvbox), image, FALSE, FALSE, 0);
gtk_widget_show (image);
label = gtk_label_new (NULL);
gtk_label_set_markup (GTK_LABEL(label), str);
gtk_label_set_justify (GTK_LABEL(label), GTK_JUSTIFY_LEFT);
gtk_box_pack_start (GTK_BOX (adjvbox), label, FALSE, FALSE, 0);
gtk_widget_show (label);
spinbtn = gtk_spin_button_new (GTK_ADJUSTMENT(adj), 1.0, 0);
// gtk_box_pack_start (GTK_BOX (adjhbox), spinbtn, TRUE, TRUE, 0);
gtk_box_pack_end (GTK_BOX (adjvbox), spinbtn, TRUE, TRUE, 0);
gtk_widget_show (spinbtn);
gtk_widget_show (adjvbox);
gtk_widget_show (adjhbox);
vscale = gtk_vscale_new (GTK_ADJUSTMENT (adj));
gtk_range_set_update_policy (GTK_RANGE (vscale),
GTK_UPDATE_CONTINUOUS);
gtk_scale_set_digits (GTK_SCALE (vscale), 0);
gtk_scale_set_value_pos (GTK_SCALE (vscale), GTK_POS_TOP);
gtk_scale_set_draw_value (GTK_SCALE (vscale), TRUE);
gtk_box_pack_start (GTK_BOX (adjhbox), vscale, TRUE, TRUE, 0);
gtk_widget_show (vscale);
/* hbox button spacing */
hbox = gtk_hbox_new (FALSE, 0);
gtk_box_set_spacing (GTK_BOX (hbox), 5);
gtk_container_set_border_width (GTK_CONTAINER (hbox), 5);
/* button sizes 80 x 24 */
btnfind = gtk_button_new_with_mnemonic ("_Goto");
gtk_widget_set_size_request (btnfind, 80, 24);
gtk_widget_set_sensitive (btnfind, (line != app->line));
gtk_widget_show (btnfind);
btnclose = gtk_button_new_with_mnemonic ("_Close");
gtk_widget_set_size_request (btnclose, 80, 24);
gtk_box_pack_end (GTK_BOX (hbox), btnclose, FALSE, FALSE, 0);
gtk_box_pack_end (GTK_BOX (hbox), btnfind, FALSE, FALSE, 0); // pack on rt-side.
gtk_widget_show (btnclose);
gtk_box_pack_end (GTK_BOX (vbox), hbox, FALSE, FALSE, 0);
gtk_widget_show (hbox);
gtk_widget_show (gotowin);
// g_signal_connect (spinbtn, "preedit-changed",
// G_CALLBACK (goto_spinbtn_preedit), app);
g_signal_connect (spinbtn, "value-changed",
G_CALLBACK (goto_spinbtn_changed), btnfind);
g_signal_connect (btnfind, "clicked",
G_CALLBACK (goto_btnfind), app);
g_signal_connect (btnclose, "clicked",
G_CALLBACK (goto_btnclose), app);
g_signal_connect (gotowin, "key_press_event",
G_CALLBACK (on_goto_keypress), app);
return (gotowin);
}
// void goto_spinbtn_preedit (GtkWidget *widget, gchar *txt, kwinst *app)
// {
// g_print ("preedit text: %s\n", txt);
// gtk_widget_set_sensitive (btnfind, TRUE);
// if (widget) {}
// }
void goto_spinbtn_changed (GtkWidget *widget, gpointer data)
{
gtk_widget_set_sensitive (data, TRUE);
if (widget) {}
}
void goto_btnfind (GtkWidget *widget, kwinst *app)
{
GtkTextIter liter;
app->line = gtk_spin_button_get_value_as_int (
GTK_SPIN_BUTTON(spinbtn)) - 1; /* subtract 1 */
#ifdef DEBUG
g_print ("goto line: %d\n", app->line);
#endif
gtk_text_buffer_get_iter_at_line (GTK_TEXT_BUFFER(app->buffer), &liter, app->line);
new_pos = gtk_text_buffer_create_mark (GTK_TEXT_BUFFER(app->buffer),
"new_line", &liter, FALSE);
// gtk_text_view_scroll_mark_onscreen (GTK_TEXT_VIEW (app->view),
// new_pos);
gtk_text_view_scroll_to_mark (GTK_TEXT_VIEW (app->view),
new_pos, 0.0, TRUE, 0.95, 0.8);
/* must place cursor after scroll or statusbar will reflect scroll */
gtk_text_buffer_place_cursor (GTK_TEXT_BUFFER(app->buffer), &liter);
if (widget) {}
if (app) {}
}
void goto_btnclose (GtkWidget *widget, kwinst *app)
{
if (new_pos)
gtk_text_buffer_delete_mark (GTK_TEXT_BUFFER(app->buffer), new_pos);
new_pos = NULL;
gtk_widget_destroy (gotowin);
if (widget) {}
}