#include <stdio.h>
#include <gtk-4.0/gtk/gtk.h>
#include "hot.h"
#include "warm.h"
#include "cold.h"

GtkWidget *get_space_page_new(){
//  https://docs.gtk.org/gtk4/visual_index.html  <  widgets gallery

  GtkScrolledWindow *scrolled = GTK_SCROLLED_WINDOW(gtk_scrolled_window_new());
  gtk_scrolled_window_set_min_content_width  (scrolled, 600);
  gtk_scrolled_window_set_min_content_height (scrolled, 600);
//  GtkAdjustment *width  = gtk_adjustment_new (600, 300, 1000, 1, 1, 1000);
//  GtkAdjustment *height = gtk_adjustment_new (600, 300, 1000, 1, 1, 1000);
  //  (value, lower, upper, step_increment, page_increment, page_size)
  GtkWidget *GLarea = gtk_gl_area_new();
  gtk_scrolled_window_set_child (scrolled, GLarea);
//  https://docs.gtk.org/gtk4/class.GLArea.html

  GtkBox *controls_box = GTK_BOX(gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 0));
  gtk_box_append (controls_box, gtk_button_new_with_label ("RUN / STOP"));
  gtk_box_append (controls_box, gtk_button_new_with_label ("slow down / speed up"));
  gtk_box_append (controls_box, gtk_button_new_with_label ("step by step"));
//  GtkLevelBar *buffer = GTK_LEVEL_BAR (gtk_level_bar_new ());
//  GtkWidget *buffer = gtk_level_bar_new_for_interval (0, 100000);
//  gtk_level_bar_set_mode (buffer, GTK_LEVEL_BAR_MODE_CONTINUOUS); //_DISCRETE
  gtk_box_append (controls_box, gtk_button_new_with_label ("---- buffer ----"));

  GtkBox *XYZ_box = GTK_BOX(gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 2)); // spacing = 2
  //  GtkWidget *scale_X = gtk_scale_button_new (0, 360, 10, NULL);  <  à étudier
  //                    (double min, double max, double step, const char** icons)
  GtkAdjustment *X_adjust = gtk_adjustment_new (0, 0, 380, 1, 0, 0);
  GtkAdjustment *Y_adjust = gtk_adjustment_new (0, 0, 380, 1, 0, 0);
  GtkAdjustment *Z_adjust = gtk_adjustment_new (0, 0, 380, 1, 0, 0);
  GtkWidget *scroll_X = gtk_scrollbar_new (GTK_ORIENTATION_VERTICAL, X_adjust);
  GtkWidget *scroll_Y = gtk_scrollbar_new (GTK_ORIENTATION_VERTICAL, Y_adjust);
  GtkWidget *scroll_Z = gtk_scrollbar_new (GTK_ORIENTATION_VERTICAL, Z_adjust);

  gtk_box_append (XYZ_box, scroll_X);
  gtk_box_append (XYZ_box, scroll_Y);
  gtk_box_append (XYZ_box, scroll_Z);

  GtkWidget *bottom_grid = gtk_grid_new();
  gtk_grid_attach (GTK_GRID(bottom_grid), GTK_WIDGET(controls_box), 0, 0, 1, 1);
  gtk_grid_attach (GTK_GRID(bottom_grid), gtk_button_new_with_label ("Objects / Situations     (transparences, styles)"), 0, 1, 1, 1);
  gtk_grid_attach (GTK_GRID(bottom_grid), gtk_button_new_with_label ("zoom, +/- grid,\npresentation,\nstyles,..."), 1, 0, 1, 2);

  GtkWidget *space_grid = gtk_grid_new();
  gtk_grid_attach (GTK_GRID(space_grid), GTK_WIDGET(scrolled),    0, 0, 1, 1);
  gtk_grid_attach (GTK_GRID(space_grid), GTK_WIDGET(XYZ_box),     1, 0, 1, 1);
  gtk_grid_attach (GTK_GRID(space_grid), GTK_WIDGET(bottom_grid), 0, 1, 2, 1); // ?! échec x_size
//  gtk_grid_attach (GTK_GRID(space_grid), gtk_button_new_with_label ("?"), 1, 1, 1, 1);

  return space_grid;
}

/*
gg/draw.c: * Draws the current buffer to a gl_area
gg/draw.c: * @param   gl_area, ptr to the gl_area widget
gg/init.c: * Initializes the buffer of a gl_area
gg/init.c: * @param   gl_area, ptr to the gl_area widget
gg/init.c: * Initializes the shaders of a gl_area and link them to a program
gg/init.c: * @param   gl_area, ptr to the gl_area widget
gg/graphics.c: * @param   gl_area, ptr to the gl_area widget
gg/graphics.c: * Shutdowns a gl_area
gg/graphics.c: * @param   gl_area, ptr to the gl_area widget
gg/GtkGLArea.c:    void *gl_area;
gg/GtkGLArea.c:            gtk_widget_queue_draw((GtkWidget*)(stack_index[i].gl_area));
gg/GtkGLArea.c:    GtkWidget *gl_area;
gg/GtkGLArea.c:    gl_area = GTK_WIDGET(gtk_gl_area_new());
gg/GtkGLArea.c:    assert(gl_area);
gg/GtkGLArea.c:    //gtk_widget_set_size_request(gl_area, 1000, 1000);
gg/GtkGLArea.c:    gtk_gl_area_set_auto_render(GTK_GL_AREA(gl_area), true);
gg/GtkGLArea.c:    gtk_widget_set_hexpand(gl_area, TRUE);
gg/GtkGLArea.c:    gtk_widget_set_vexpand(gl_area, TRUE);
gg/GtkGLArea.c:    //gtk_widget_set_halign(gl_area, GTK_ALIGN_CENTER);
gg/GtkGLArea.c:    //gtk_widget_set_valign(gl_area, GTK_ALIGN_CENTER);
gg/GtkGLArea.c:    g_signal_connect(GTK_GL_AREA(gl_area),
gg/GtkGLArea.c:    g_signal_connect(gl_area,
gg/GtkGLArea.c:    g_signal_connect(gl_area,
gg/GtkGLArea.c:    stack_index[stack_index_size-1].gl_area = (void*)gl_area;
gg/GtkGLArea.c:    gtk_box_append(GTK_BOX(target_widget), gl_area);
gg/GtkGLArea.c:    gtk_widget_show(GTK_WIDGET(gl_area));
gg/events.c:    if(gtk_gl_area_get_error(area) != NULL) {
gg/events.c:    gtk_gl_area_make_current(GTK_GL_AREA(widget));
gg/events.c:    if(gtk_gl_area_get_error(GTK_GL_AREA(widget)) != NULL) {
gg/events.c:    gtk_gl_area_set_auto_render(GTK_GL_AREA(widget), true);
gg/events.c:    gtk_gl_area_make_current(GTK_GL_AREA(widget));
gg/events.c:    if(gtk_gl_area_get_error(GTK_GL_AREA(widget)) != NULL) {
gg/graphics.h: * Structure describing a gl_area and its parameters, used to create a table
gg/graphics.h: * of Gem-graph client current gl_areas
gg/graphics.h: * Dynamic array of ptrs to dynamically allocated gl_area_entry
gg/graphics.h: * Initializes a gl_area
gg/graphics.h: * @param   gl_area, ptr to the gl_area widget
gg/graphics.h: * Draws the current buffer to a gl_area
gg/graphics.h: * @param   gl_area, ptr to the gl_area widget
gg/graphics.h: * Shutdowns a gl_area
gg/graphics.h: * @param   gl_area, ptr to the gl_area widget
gg/graphics.h: * Initializes the shaders of a gl_area and link them to a program
gg/graphics.h: * @param   gl_area, ptr to the gl_area widget
gg/graphics.h: * Initializes the buffer of a gl_area
gg/graphics.h: * @param   gl_area, ptr to the gl_area widget
*/