.. _program_listing_file_src_utility_canvasutility.h:

Program Listing for File canvasutility.h
========================================

|exhale_lsh| :ref:`Return to documentation for file <file_src_utility_canvasutility.h>` (``src/utility/canvasutility.h``)

.. |exhale_lsh| unicode:: U+021B0 .. UPWARDS ARROW WITH TIP LEFTWARDS

.. code-block:: cpp

   /*
    * CanvasUtility - Tools for managing Canvases.
    */
   
   #ifndef CANVASUTILITY_H
   #define CANVASUTILITY_H
   
   #include <QByteArray>
   #include <QString>
   #include "canvas/canvas.h"
   #include "core/colors.h"
   #include "widget/maestrocontrolwidget.h"
   
   using namespace PixelMaestro;
   
   namespace PixelMaestroStudio {
       class CanvasUtility {
           public:
               static void copy_from_canvas(Canvas& canvas, uint8_t** target, uint16_t target_x, uint16_t target_y) {
                   Point target_bounds(target_x, target_y);
                   Point canvas_bounds(canvas.get_section().get_dimensions().x, canvas.get_section().get_dimensions().y);
   
                   for (uint16_t frame = 0; frame < canvas.get_num_frames(); frame++) {
                       for (uint16_t y = 0; y < canvas_bounds.y; y++) {
                           for (uint16_t x = 0; x < canvas_bounds.x; x++) {
                               if (x <= target_x && y <= target_y) {
                                   target[frame][target_bounds.get_inline_index(x, y)] = canvas.get_frame(frame)[canvas_bounds.get_inline_index(x, y)];
                               }
                           }
                       }
                   }
               }
   
               static void copy_to_canvas(Canvas& canvas, uint8_t** source, uint16_t target_x, uint16_t target_y, MaestroControlWidget& maestro_control) {
                   for (uint16_t frame = 0; frame < canvas.get_num_frames(); frame++) {
                       maestro_control.run_cue(
                           maestro_control.canvas_handler->draw_frame(
                               maestro_control.section_control_widget_->get_section_index(),
                               maestro_control.section_control_widget_->get_layer_index(),
                               frame,
                               target_x,
                               target_y,
                               source[frame]
                           )
                       );
                   }
               }
               static void load_image(const QString& filename, Canvas& canvas, MaestroControlWidget* maestro_control = nullptr);
       };
   }
   
   #endif // CANVASUTILITY_H