ass::BackgroundImage

Represents textured (image) background.

Header:	#include <AUI/ASS/Property/BackgroundImage.h>
CMake:	aui_link(my_target PUBLIC aui::views)

Public fields and Signals

---

dpiMargin

unset_wrap<float> dpiMargin

DPI multiplier used to underscale or upperscale the icon.

In example, you may use 64x64 png icons and set the dpiMargin to 2.0. They will be rendered as 32px icons on 100% scale (instead of 64px), and 64px on 200% scale, remaining crisp. On 300% scale, however, they will be rendered as 96px images, thus becoming blurry, hence usage of SVG icons is recommended.

---

image

unset_wrap<std::variant<AString,_<IDrawable>>> image

Url to the image.

In example, ":icon.svg" references to icon.svg file in your assets. See AUrl for more info.

Examples

examples/app/game_of_life/src/main.cpp

Game of Life - Game of Life implementation that uses advanced large dynamic data rendering techniques such as ITexture, AImage to be GPU friendly. The computation is performed in AThreadPool.

        if (!mTexture) {
            mTexture = AWindow::current()->getRenderingContext()->renderer().getNewTexture();
        }

        CellsImage image(mCells->size());
        for (unsigned y = 0; y < image.height(); ++y) {
            for (unsigned x = 0; x < image.width(); ++x) {
                image.set(
                    { x, y },
                    AFormattedColorConverter(

---

overlayColor

unset_wrap<AColor> overlayColor

Multiply color filter to the image.

It allows to replace the color of white icons to the specified overlayColor.

Gray color multiplied by the specified one gives the darker color.

Black color is not affected.

---

rep

unset_wrap<Repeat> rep

Repeating. See Repeat

---

scale

unset_wrap<glm::vec2> scale

Scale of the image by x and y axis. Default is { 1.0, 1.0 }.

Examples

examples/app/fractal/src/JumpToCoordsWindow.cpp

Fractal Example - Fractal viewer application demonstrating usage of custom shaders.

JumpToCoordsWindow::JumpToCoordsWindow(_<FractalView> fractalView, AWindow* parent)
  : AWindow("Jump to coords", 854_dp, 500_dp, parent, WindowStyle::NO_RESIZE) {
    auto re = _new<ATextField>();
    auto im = _new<ATextField>();
    auto scale = _new<ATextField>();

    auto pos = fractalView->getPlotPosition();
    re->setText(AString::number(pos.x));
    im->setText(AString::number(pos.y));
    scale->setText(AString::number(fractalView->getPlotScale()));

examples/app/fractal/src/FractalView.cpp

Fractal Example - Fractal viewer application demonstrating usage of custom shaders.

    AView::onScroll(event);
    auto projectedPos = (glm::dvec2(event.origin) / glm::dvec2(getSize()) - glm::dvec2(0.5)) * 2.0;
    projectedPos.x *= mAspectRatio;
    mTransform = glm::translate(mTransform, glm::vec3 { projectedPos, 0.0 });
    mTransform = glm::scale(mTransform, glm::vec3(1.0 - event.delta.y / 1000.0));
    mTransform = glm::translate(mTransform, -glm::vec3 { projectedPos, 0.0 });

    handleMatrixUpdated();

    redraw();

---

sizing

unset_wrap<Sizing> sizing

Sizing. See ass::Sizing