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ZC_105888224-Participant
4-Participant
March 6, 2025
Solved

Creo UI Toolkit cannot show image in Drawing Area

  • March 6, 2025
  • 1 reply
  • 1386 views

Hi all, I'm using the C++ Object toolkit and the Creo UI editor. I'm developing a plugin for Creo Parametric v10.0.5.0

 

For some reason, I am not able to display an image in the Drawing Area component. 

 

I placed my image in the text directory for the plug-in:

Text -> usascii -> resource -> logo.png

 

Here is my code:

 

 

 

 

#include "pch.h"
#include "DrawingAreaTestDialog.h"

#include <uifcComponent.h>
#include <uifcDrawingArea.h>

Drawing_area_test_dialog::Drawing_area_test_dialog() = default;

void Drawing_area_test_dialog::open_dialog()
{
	if (uifcCreateDialog("DrawingAreaDialog", "DrawingAreaDialog") == 0)
	{
		const uifcDialog_ptr dialog = uifcDialogFind("DrawingAreaDialog", "DrawingAreaDialog");
		Dialog_listener dialog_listener;
		dialog->AddActionListener(&dialog_listener);

		const uifcDrawingArea_ptr drawing_area = uifcDrawingAreaFind("DrawingAreaDialog", "DrawingAreaTest");

		const xstringsequence_ptr image_seq = xstringsequence::create();
		const xstring image = "logo.png";
		image_seq->append(image);

		drawing_area->SetDrawingImageArray(image_seq);
		drawing_area->DrawImage(image_seq->get(0), uifcPoint::Create(10, 10), uifcIMAGE_SELECTED);

		if (uifcActivateDialog("DrawingAreaDialog") == 0)
		{
			uifcExitDialog("DrawingAreaDialog", 0);
			uifcDestroyDialog("DrawingAreaDialog");
		}
	}
}

void Drawing_area_test_dialog::Dialog_listener::OnClose(uifcDialog_ptr handle)
{
	uifcExitDialog("DrawingAreaDialog", 0);
	uifcDestroyDialog("DrawingAreaDialog");
}

 

 

 

 

 

The manual and API docs are not very clear on how to use the Drawing Area component. Am I missing a step in my code? What am I doing wrong?

 

When I run the plugin I see a blank drawing area and no image displayed. See the screenshot attached to view the behavior.

    Best answer by VIN

    Hi,in creo toolkit can use api ProUIDialogPostmanagenotifyActionSet
    Set the load picture in drawing area function to be called when a dialog has just been managed.

    1 reply

    V
    VIN12-AmethystAnswer
    12-Amethyst
    March 7, 2025

    Hi,in creo toolkit can use api ProUIDialogPostmanagenotifyActionSet
    Set the load picture in drawing area function to be called when a dialog has just been managed.

      Z
      ZC_105888224-ParticipantAuthor
      4-Participant
      March 7, 2025

      Hi VIN,

       

      Thanks for the response! I am setting the image before the dialog is shown. The dialog is shown when uifcActivateDialog method is called. Searching I found this article on how to use a drawing area via protoolkit: https://www.ptc.com/en/support/article/CS202469. 

       

      It does not use ProUIDialogPostmanagenotifyActionSet but I'm also having trouble getting this example code to display the image. I'll try your suggestion and report back.

      Z
      ZC_105888224-ParticipantAuthor
      4-Participant
      March 7, 2025

      Thanks @VIN for the clue. Since, I'm using the OTK I implemented this event OnDisplay it seems like I must do that to load the image into the Drawing Area component properly. 

       

      Here is my updated code:

      #include "pch.h"
#include "DrawingAreaTestDialog.h"

#include <uifcComponent.h>
#include <uifcDrawingArea.h>

Drawing_area_test_dialog::Drawing_area_test_dialog(const std::string& image_path)
{
	_image_path = image_path;
}

void Drawing_area_test_dialog::open_dialog()
{
	if (uifcCreateDialog("DrawingAreaDialog", "DrawingAreaDialog") == 0)
	{
		const uifcDialog_ptr dialog = uifcDialogFind("DrawingAreaDialog", "DrawingAreaDialog");
		Dialog_listener dialog_listener(*this);
		dialog->AddActionListener(&dialog_listener);

		if (uifcActivateDialog("DrawingAreaDialog") == 0)
		{
			uifcExitDialog("DrawingAreaDialog", 0);
			uifcDestroyDialog("DrawingAreaDialog");
		}
	}
}

Drawing_area_test_dialog::Dialog_listener::Dialog_listener(Drawing_area_test_dialog& dialog) : _dialog(dialog)
{
}

/// <summary>
/// When this event is triggered then we need to select the image to display
/// in the drawing area component.
/// </summary>
/// <param name="handle">Handle to the dialog object</param>
void Drawing_area_test_dialog::Dialog_listener::OnDisplay(uifcDialog_ptr handle)
{
	const xstringsequence_ptr image_seq = xstringsequence::create();
	const char* current_image_path = _dialog._image_path.c_str();
	image_seq->append(current_image_path);

	const uifcDrawingArea_ptr drawing_area = uifcDrawingAreaFind("DrawingAreaDialog", "DrawingAreaTest");
	const uifcDimension_ptr image_dimensions = drawing_area->GetImageSize(current_image_path);
	drawing_area->SetWidth(image_dimensions->GetWidth());
	drawing_area->SetHeight(image_dimensions->GetHeight());
	drawing_area->SetDrawingImageArray(image_seq);
	drawing_area->DrawImage(image_seq->get(0), uifcPoint::Create(0, 0), uifcImageFlags_nil);
}

/// <summary>
/// This event is triggered when a user resizes the dialog.
/// When the dialog is resized the Drawing Area component is cleared.
/// We need to redraw the image in the Drawing Area component.
/// </summary>
/// <param name="handle">Handle to the dialog object</param>
void Drawing_area_test_dialog::Dialog_listener::OnSize(uifcDialog_ptr handle)
{
	const xstringsequence_ptr image_seq = xstringsequence::create();
	const char* current_image_path = _dialog._image_path.c_str();
	image_seq->append(current_image_path);

	const uifcDrawingArea_ptr drawing_area = uifcDrawingAreaFind("DrawingAreaDialog", "DrawingAreaTest");
	const uifcDimension_ptr image_dimensions = drawing_area->GetImageSize(current_image_path);
	drawing_area->SetDrawingImageArray(image_seq);
	drawing_area->DrawImage(image_seq->get(0), uifcPoint::Create(0, 0), uifcImageFlags_nil);
}

void Drawing_area_test_dialog::Dialog_listener::OnClose(uifcDialog_ptr handle)
{
	uifcExitDialog("DrawingAreaDialog", 0);
	uifcDestroyDialog("DrawingAreaDialog");
}

       

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