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Cannot create TreeView on 3D rendering viewport.


Go to solution Solved by Josh,

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Posted
When creating it I get an access violation when reading at position 0x0000000000000000.

 

#include "UltraEngine.h"

using namespace UltraEngine;

int main(int argc, const char* argv[])
{
    //Get the displays
    auto displays = GetDisplays();

    //Create window
    auto window = CreateWindow("Ultra Engine", 0, 0, 1280, 720, displays[0]);

    //Create framebuffer
    auto framebuffer = CreateFramebuffer(window);

    //Create world
    auto world = CreateWorld();

    //Load a font
    auto font = LoadFont("Fonts/arial.ttf");

    //Create user interface
    auto ui = CreateInterface(world, font, framebuffer->size);

    //Create camera
    auto camera = CreateCamera(world, PROJECTION_ORTHOGRAPHIC);
    camera->SetPosition(float(framebuffer->size.x) * 0.5f, float(framebuffer->size.y) * 0.5f, 0);

    //Create widget
    iVec2 sz = ui->root->ClientSize();

    auto treeview = CreateTreeView(10, 10, sz.x - 20, sz.y - 20, ui->root, TREEVIEW_DRAGANDDROP | TREEVIEW_DRAGINSERT);
    treeview->SetLayout(1, 1, 1, 1);

    auto node = treeview->root->AddNode("Node 1");
    node->AddNode("Subnode 1");
    node->AddNode("Subnode 2");
    node->AddNode("Subnode 3");

    node = treeview->root->AddNode("Node 2");
    node->AddNode("Subnode 1");
    node->AddNode("Subnode 2");
    node->AddNode("Subnode 3");

    node = treeview->root->AddNode("Node 3");
    node->AddNode("Subnode 1");
    node->AddNode("Subnode 2");
    node->AddNode("Subnode 3");

    while (true)
    {
        while (PeekEvent())
        {
            const Event event = WaitEvent();
            switch (event.id)
            {
            case EVENT_WIDGETSELECT:
                if (event.source == treeview and event.data == 1)
                {
                    node = event.extra->As<Widget>();
                    Print("Selected: " + node->text);
                }
                break;
            case EVENT_WIDGETACTION:
                if (event.source == treeview)
                {
                    node = event.extra->As<Widget>();
                    Print("Action: " + node->text);
                    if (!node->kids.empty())
                    {
                        if (node->Collapsed())
                        {
                            node->Expand();
                        }
                        else
                        {
                            node->Collapse();
                        }
                    }
                }
                break;
            case EVENT_WIDGETDROP:
            {
                auto child = event.source->As<Widget>();
                auto parent = event.extra->As<Widget>();
                child->SetParent(parent, event.data);
            }
            break;
            case EVENT_WINDOWCLOSE:
                if (event.source == window)
                {
                    return 0;
                }
                break;
            default:
                ui->ProcessEvent(event);
                break;
            }
        }

        world->Update();
        world->Render(framebuffer);
    }
    return 0;
}

 

 

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