Function performPatchVertexManipulationTest

test/TextureTool.cpp:1281–1341

}

void performPatchVertexManipulationTest(bool cancelOperation)
{
    auto patchNode = setupPatchNodeForTextureTool();
    auto patch = Node_getIPatch(patchNode);

    // Remember the texcoords before manipulation
    std::vector<Vector2> oldTexcoords;
    algorithm::foreachPatchVertex(*patch, [&](const PatchControl& control) { oldTexcoords.push_back(control.texcoord); });

    // Get the texture space bounds of this patch
    auto bounds = algorithm::getTextureSpaceBounds(*patch);
    bounds.extents *= 1.2f;

    render::TextureToolView view;
    view.constructFromTextureSpaceBounds(bounds, TEXTOOL_WIDTH, TEXTOOL_HEIGHT);

    GlobalTextureToolSelectionSystem().setSelectionMode(textool::SelectionMode::Vertex);

    // Select every odd vertex
    for (auto i = 1; i < oldTexcoords.size(); i += 2)
    {
        performPointSelection(oldTexcoords[i], view);
    }

    EXPECT_EQ(getAllSelectedComponentNodes().size(), 1) << "No component node selected";

    // Drag-manipulate the first odd vertex
    dragManipulateSelectionTowardsLowerRight(oldTexcoords[1], view, cancelOperation); // optionally cancel the operation

    std::vector<Vector2> changedTexcoords;
    algorithm::foreachPatchVertex(*patch, [&](const PatchControl& control) { changedTexcoords.push_back(control.texcoord); });

    if (!cancelOperation)
    {
        // All odd texcoords should have been moved to the lower right (U increased, V increased)
        for (auto i = 0; i < oldTexcoords.size(); ++i)
        {
            if (i % 2 == 1)
            {
                EXPECT_LT(oldTexcoords[i].x(), changedTexcoords[i].x());
                EXPECT_LT(oldTexcoords[i].y(), changedTexcoords[i].y());
            }
            else
            {
                // should be unchanged
                EXPECT_NEAR(oldTexcoords[i].x(), changedTexcoords[i].x(), 0.01);
                EXPECT_NEAR(oldTexcoords[i].y(), changedTexcoords[i].y(), 0.01);
            }
        }
    }
    else // operation cancelled
    {
        // All texcoords should remain unchanged
        for (auto i = 0; i < oldTexcoords.size(); ++i)
        {
            // should be unchanged
            EXPECT_NEAR(oldTexcoords[i].x(), changedTexcoords[i].x(), 0.01);
            EXPECT_NEAR(oldTexcoords[i].y(), changedTexcoords[i].y(), 0.01);