vpr/src/draw/save_graphics.cpp

#ifndef NO_GRAPHICS

#    include <cstdio>
#    include <sstream>

#    include "globals.h"
#    include "draw.h"
#    include "draw_global.h"
#    include "save_graphics.h"
#    include "vtr_path.h"
#    include "search_bar.h"

extern ezgl::rectangle initial_world;

void save_graphics_from_button(GtkWidget* /*widget*/, gint response_id, gpointer data) {
    auto dialog = static_cast<GtkWidget*>(data);

    if (response_id == GTK_RESPONSE_ACCEPT) {
        //user clicked on the save button

        GtkWidget* content_area = gtk_dialog_get_content_area(GTK_DIALOG(dialog));
        GList* list_of_widgets = gtk_container_get_children(GTK_CONTAINER(content_area));
        GtkWidget* combo_box = NULL;
        GtkWidget* text_entry = NULL;
        gchar* combo_box_content = NULL;
        std::string file_name;
        std::string extension;

        // loop through the list to find the combo box and the text entry
        GList* current = list_of_widgets;
        while (current != NULL) {
            GList* next = current->next;
            if (strcmp(gtk_widget_get_name(static_cast<GtkWidget*>(current->data)), "file_name_text_entry") == 0) {
                // found text entry
                text_entry = static_cast<GtkWidget*>(current->data);
            } else if (strcmp(gtk_widget_get_name(static_cast<GtkWidget*>(current->data)), "file_name_combo_box") == 0) {
                // found combo box
                combo_box = static_cast<GtkWidget*>(current->data);
            }
            current = next;
        }

        // get the data from the text entry and combo box
        file_name = gtk_entry_get_text(GTK_ENTRY(text_entry));
        combo_box_content = gtk_combo_box_text_get_active_text(GTK_COMBO_BOX_TEXT(combo_box));
        extension = combo_box_content;

        //save the graphics
        save_graphics(extension, file_name);

        // free dynamically allocated variables
        g_list_free(list_of_widgets);
        g_free(combo_box_content);
    }
    // free widget
    gtk_widget_destroy(dialog);
}

void save_graphics(std::string& extension, std::string& file_name) {
    file_name = file_name + "." + extension;
    if (extension == "pdf") {
        application.get_canvas(application.get_main_canvas_id())->print_pdf(file_name.c_str(), initial_world.width(), initial_world.height());
        return;
    } else if (extension == "png") {
        application.get_canvas(application.get_main_canvas_id())->print_png(file_name.c_str(), initial_world.width(), initial_world.height());
        return;
    } else if (extension == "svg") {
        application.get_canvas(application.get_main_canvas_id())->print_svg(file_name.c_str(), initial_world.width(), initial_world.height());
        return;
    } else {
        warning_dialog_box("Invalid file type");
    }
}

void save_graphics_dialog_box(GtkWidget* /*widget*/, ezgl::application* /*app*/) {
    GObject* main_window;
    GtkWidget* content_area;
    GtkWidget* text_entry;
    GtkWidget* name_label;
    GtkWidget* type_label;
    GtkWidget* dialog;
    GtkWidget* combo_box;

    // get a pointer to the main window
    main_window = application.get_object(application.get_main_window_id().c_str());

    // create a dialog window modal
    dialog = gtk_dialog_new_with_buttons("Save Graphics Contents",
                                         GTK_WINDOW(main_window),
                                         GTK_DIALOG_DESTROY_WITH_PARENT,
                                         ("_Save"),
                                         GTK_RESPONSE_ACCEPT,
                                         ("_Cancel"),
                                         GTK_RESPONSE_REJECT,
                                         NULL);

    // create elements
    name_label = gtk_label_new("File name:");
    text_entry = gtk_entry_new();
    type_label = gtk_label_new("File format:");
    combo_box = gtk_combo_box_text_new();

    // set name for text entry and combo box for later data extraction
    gtk_widget_set_name(text_entry, "file_name_text_entry");
    gtk_widget_set_name(combo_box, "file_name_combo_box");

    gtk_combo_box_text_append_text(GTK_COMBO_BOX_TEXT(combo_box), "pdf"); // index 0
    gtk_combo_box_text_append_text(GTK_COMBO_BOX_TEXT(combo_box), "png"); // index 1
    gtk_combo_box_text_append_text(GTK_COMBO_BOX_TEXT(combo_box), "svg"); // index 2

    // set default values
    gtk_combo_box_set_active((GtkComboBox*)combo_box, 0);      // default set to pdf which has an index 0
    gtk_entry_set_text((GtkEntry*)text_entry, "vpr_graphics"); // defualt text set to vpr_graphics

    // attach elements to the content area of the dialog
    content_area = gtk_dialog_get_content_area(GTK_DIALOG(dialog));
    gtk_container_add(GTK_CONTAINER(content_area), name_label);
    gtk_container_add(GTK_CONTAINER(content_area), text_entry);
    gtk_container_add(GTK_CONTAINER(content_area), type_label);
    gtk_container_add(GTK_CONTAINER(content_area), combo_box);

    // show the label & child widget of the dialog
    gtk_widget_show_all(dialog);

    g_signal_connect_swapped(GTK_DIALOG(dialog),
                             "response",
                             G_CALLBACK(save_graphics_from_button),
                             GTK_DIALOG(dialog));
    return;
}

#endif /* NO_GRAPHICS */