gem-graph-client/src/callbacks.c

/*  *  *  *  *  *  *  *  *  *  *  *  *  *  *  *  *  *  *  *  *  *  *  *  *  *  *
*                                                                              *
*                              Gem-graph client                                *
*                                                                              *
*                                 Callbacks                                    *
*                                                                              *
*  Copyright © 2021 Libre en Communs <contact@a-lec.org>                       *
*  Copyright © 2023 Adrien Bourmault <neox@a-lec.org>                          *
*  Copyright © 2024 Jean Sirmai <jean@a-lec.org>                               *
*                                                                              *
*                        This file is part of Gem-graph.                       *
*                                                                              *
*  This program is free software: you can redistribute it and/or modify it     *
*  under the terms of the GNU Affero General Public License                    *
*  as publishedby the Free Software Foundation,                                *
*  either version 3 of the License, or (at your option) any later version.     *
*                                                                              *
*  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 Affero General Public License for more details.                 *
*                                                                              *
*  You should have received a copy of the GNU Affero General Public License    *
*  along with this program.  If not, see <http://www.gnu.org/licenses/>.       *
*                                                                              *
*  *  *  *  *  *  *  *  *  *  *  *  *  *  *  *  *  *  *  *  *  *  *  *  *  *  */


#include "../include/callbacks.h"
#include "../include/widgets.h"
#include "../include/graph.h"


/******************************************************************************/
/*                   W I N D O W S    A C T I V A T I O N S                   */
/******************************************************************************/

void on_main_window_activation (GtkApplication *app,
                                gpointer no_user_data)
{
  set_main_window (app);
  widget_MAIN_WINDOW_design (get_main_window());
}


void on_dialog_window_activation (GtkApplication *app,
                                  gpointer no_user_data)
{
  set_dialog_window (app);
  widget_DIALOG_WINDOW_design (get_main_window(),
                               get_dialog_window());
}


static void on_auto_notification (const char *message)
{
  /*  Ignored (2024-06-06)  because I don't know how to get "main_window" easily

    if (window->toast_revealer == NULL) {
        g_printerr("Can't find app->toast_overlay !\n");
        return;
    }

    if (window->toast_text == NULL) {
        g_printerr("Can't find app->toast_overlay !\n");
        return;
    }

    gtk_label_set_label(window->toast_text, message);
    gtk_revealer_set_reveal_child(window->toast_revealer, true);
  */
    g_printerr("%s\n", message);
}


/******************************************************************************/
/*                                T R E E                                     */
/******************************************************************************/

void on_user_tree_expander_toggled (GtkExpander *expander,
                                    gpointer user_data)
{
  GtkTreeListRow *row = GTK_TREE_LIST_ROW (user_data);
  gboolean is_expanded = gtk_tree_list_row_get_expanded (row);
  gtk_tree_list_row_set_expanded (row,
                                  !is_expanded);
}


void on_bind_user_tree_factory (GtkSignalListItemFactory *factory,
                                GObject* object,
                                gpointer user_data)
{
  GtkListItem *list_item = GTK_LIST_ITEM (object);
  assert (list_item);

  GtkTreeListRow *row = gtk_list_item_get_item (list_item);
  assert (row); // if (row != NULL) {...}  do something ?

  const gchar *text = gtk_string_object_get_string (
                      GTK_STRING_OBJECT (gtk_tree_list_row_get_item (row)));
  GtkWidget *expander = gtk_list_item_get_child (list_item);
  gtk_expander_set_label (GTK_EXPANDER (expander), text);
  g_signal_handlers_disconnect_by_func (expander,
                                        G_CALLBACK (on_user_tree_expander_toggled),
                                        row);
  g_signal_connect (expander,
                    "activate",
                    G_CALLBACK (on_user_tree_expander_toggled),
                    row);
  gtk_widget_set_margin_start (expander,
                               gtk_tree_list_row_get_depth(row) * 20);
}

void on_setup_user_tree_factory (GtkSignalListItemFactory *factory,
                                 GObject* object, gpointer user_data){
    GtkWidget* expander = gtk_expander_new (NULL);
    gtk_list_item_set_child (GTK_LIST_ITEM (object), expander);
    if (0) printf("[on_setup_user_tree_factory] here is an expander\n");
}


/******************************************************************************/
/*                              G L  A R E A                                  */
/******************************************************************************/

gboolean on_glarea_render(GtkGLArea *area,
                          GdkGLContext *context)
{
    // Check if the widget is a glarea
    if(gtk_gl_area_get_error(area) != NULL) {
        on_auto_notification("An OpenGL error occured !");
        return false;
    }

    if (graph_render_stack(gtk_widget_get_parent(GTK_WIDGET(area))) == false) {
        on_auto_notification("Failed to render corresponding graphic stack !");
        return false;
    }

    return true;
}


/* We need to set up our state when we realize the GtkGLArea widget */
void on_glarea_realize(GtkWidget *widget)
{
    GError *internal_error = NULL;

    // Make the GL context current to be able to call the GL API
    gtk_gl_area_make_current(GTK_GL_AREA(widget));

    // Check if the widget is a glarea
    if(gtk_gl_area_get_error(GTK_GL_AREA(widget)) != NULL) {
        on_auto_notification("An OpenGL error occured !");
        return;
    }

    // Link graphical stack to widget
    if (graph_init_graph_stack(gtk_widget_get_parent(widget),
                              internal_error) == false) {
        on_auto_notification(
            "Failed to link the graphic stack to widgets !");
        return;
    }

    gtk_gl_area_set_auto_render(GTK_GL_AREA(widget), true);
}

/* We should tear down the state when unrealizing */
void on_glarea_unrealize(GtkWidget *widget)
{
    GError *internal_error = NULL;

    // Make the GL context current to be able to call the GL API
    gtk_gl_area_make_current(GTK_GL_AREA(widget));

    // Check if the widget is a glarea
    if(gtk_gl_area_get_error(GTK_GL_AREA(widget)) != NULL) {
        on_auto_notification("An OpenGL error occured !");
        return;
    }

    // Destroy graphic stack
    if (graph_shutdown_graph_stack(gtk_widget_get_parent(widget),
                                  internal_error) == false) {
        on_auto_notification(
            "Failed to shutdown the graphic stack !");
        return;
    }
}

void on_axis_value_change(GtkAdjustment *adjustment, gpointer data)
{

    GtkWidget *slider = gtk_widget_get_parent(GTK_WIDGET(data));
    GtkWidget *container_widget = gtk_widget_get_parent(GTK_WIDGET(slider));

    const gchar *label_text = gtk_label_get_label(GTK_LABEL(data));

    // THANKS ASCIIIII/Unicode/Whateverrr !
    int axis = label_text[0] - 'X';

    g_assert(axis >= 0 && axis < N_AXIS);

    /* Update the rotation angle */
    graph_update_axis_stack(container_widget,
                         axis,
                         gtk_adjustment_get_value(adjustment));

    /* Update the contents of the GL drawing area */
}


/******************************************************************************/
/*                             B U T T O N S                                  */
/******************************************************************************/

static void switch_STATE_RULES_DATA() {

    switch (get_STATE_RULES_DATA()) {

    case (STATE) :
      gtk_window_set_child (get_main_window(),
                            GTK_WIDGET (widget_get_STATE_page()));
      break;

    case (RULES) :
      gtk_window_set_child (get_main_window(),
                            GTK_WIDGET (widget_get_RULES_page()));
      break;

    case (DATA)  :
      if (0) gtk_window_set_child (get_main_window(),
                            GTK_WIDGET (get_window_child_DATA_lab ()));
      gtk_window_set_child (get_main_window(),
                            GTK_WIDGET (widget_get_STOCK_page()));
      break;

    default :
      printf("default in callback.on_toggle_STATE_RULES_DATA()\n");
  }
}

void on_toggle_EXEC_EDIT (GtkWidget *toggled_button, gpointer user_data) {

  if (get_EXEC_EDIT ()) {

    gtk_button_set_icon_name (GTK_BUTTON (toggled_button),
                              "power-profile-balanced-rtl-symbolic");
    set_EXEC_EDIT (EXEC);

  } else {

    gtk_button_set_icon_name (GTK_BUTTON (toggled_button),
                              "text-editor-symbolic");

    //  https://docs.gtk.org/gtk4/class.Window.html    TODO   2024-06-30
    //  gtk_window_present (GTK_WINDOW (get_dialog_window()));   //   works once only !

    set_EXEC_EDIT (EDIT);
  }

  switch_STATE_RULES_DATA();
}

void on_toggle_STATE_RULES_DATA (GtkWidget *toggled_button, gpointer user_data) {

  const char *toggled_button_name
                = gtk_check_button_get_label  (GTK_CHECK_BUTTON (toggled_button));
  int is_active = gtk_check_button_get_active (GTK_CHECK_BUTTON (toggled_button));

  if (! strcmp (toggled_button_name, "state")) {
    set_STATE_RULES_DATA (STATE);
  }

  if (! strcmp (toggled_button_name, "rules")) {
    set_STATE_RULES_DATA (RULES);
  }

  if (! strcmp (toggled_button_name, "data analysis")) {
    set_STATE_RULES_DATA (DATA);
  }

  if (is_active) {
    switch_STATE_RULES_DATA();
  }
}

void on_SAVE_CURRENT_MODEL_BEFORE_EDITING (GtkWidget *btt_SAVE_CURRENT_MODEL,
                                           gpointer data) {
  gtk_widget_set_sensitive (GTK_WIDGET (data),
                            TRUE);
  printf ("callback.c (line 286)  -  SAVE_CURRENT_MODEL_BEFORE_EDITING\n");
}

void on_DISCARD_CURRENT_MODEL_AND_START_EDITING (GtkWidget *btt_SAVE_CURRENT_MODEL,
                                                 gpointer data) {
  gtk_window_close (GTK_WINDOW (data));
  printf ("callback.c (line 292)  -  DISCARD_CURRENT_MODEL_AND_START_EDITING\n");
}

void on_WRITE_CURRENT_MODEL (GtkWidget *btt_WRITE_CURRENT_MODEL,
                             gpointer data) {
  gtk_window_close (GTK_WINDOW (data));
  printf ("callback.c (line 300)  -  WRITE_CURRENT_MODEL\n");
}

void on_clicked_HOME (GtkWidget *btt_reset, gpointer data) {
  printf ("on_clicked_HOME button presents the dialog_window  ( :- )  but it works only once.\n");
  gtk_window_present (GTK_WINDOW (get_dialog_window()));   //   works once only !
}

void on_reset_image (GtkWidget *btt_reset, gpointer data) {
  printf ("callback.on_reset_image()   <>   Comment remettre tous les curseurs à zéro ?\n");
}