Examples with Size2i com.xenoage.utils.math.geom.Size2i used on opensource projects

Example 1 with Size2i

use of com.xenoage.utils.math.geom.Size2i in project Zong by Xenoage.

the class PageViewManagerTest method computeScreenPosition.

@Test
public void computeScreenPosition() {
    Size2i viewSize = new Size2i(800, 600);
    float viewScaling = 1;
    Point2f viewScroll = new Point2f(0, 0);
    ViewState viewState = new ViewState(viewSize, viewScaling, viewScroll);
    // center point of the page must have screen coordinates 400/300
    Point2i pos = view.computePositionPx(layoutPos(null, 0, p(50, 100)), viewState);
    assertEquals(pos.x, 400);
    assertEquals(pos.y, 300);
    // set zoom to 200%, must still be 400/300
    viewScaling = 2;
    viewState = new ViewState(viewSize, viewScaling, viewScroll);
    pos = view.computePositionPx(layoutPos(null, 0, p(50, 100)), viewState);
    assertEquals(pos.x, 400);
    assertEquals(pos.y, 300);
    // scroll to -5/10
    // page point 45/110 must be 400/300
    viewScroll = new Point2f(-5, 10);
    viewState = new ViewState(viewSize, viewScaling, viewScroll);
    pos = view.computePositionPx(layoutPos(null, 0, p(45, 110)), viewState);
    assertEquals(pos.x, 400);
    assertEquals(pos.y, 300);
    // page center point must be
    // 400-(-5*MmToPx*zoom); 300-(10*MmToPx*zoom)
    pos = view.computePositionPx(layoutPos(null, 0, p(50, 100)), viewState);
    assertEquals(pos.x, Math.round(400 - Units.mmToPx(-5, viewScaling)));
    assertEquals(pos.y, Math.round(300 - Units.mmToPx(10, viewScaling)));
}

Example 2 with Size2i

use of com.xenoage.utils.math.geom.Size2i in project Zong by Xenoage.

the class PageViewManagerTest method computeLayoutPosition.

@Test
public void computeLayoutPosition() {
    Size2i viewSize = new Size2i(800, 600);
    float viewScaling = 1;
    Point2f viewScroll = new Point2f(0, 0);
    ViewState viewState = new ViewState(viewSize, viewScaling, viewScroll);
    // default zoom and scroll: point 400/300 must
    // have center position of the page (50/100)
    Point2f pos = view.computeLP(new Point2i(400, 300), viewState).position;
    assertEquals(pos.x, 50, Delta.DELTA_FLOAT);
    assertEquals(pos.y, 100, Delta.DELTA_FLOAT);
    // set zoom to 200%, must still be 50/100
    viewScaling = 2;
    viewState = new ViewState(viewSize, viewScaling, viewScroll);
    pos = view.computeLP(new Point2i(400, 300), viewState).position;
    assertEquals(pos.x, 50, Delta.DELTA_FLOAT);
    assertEquals(pos.y, 100, Delta.DELTA_FLOAT);
    // scroll to -5/10
    // screen point 400/300 must be 45/110
    viewScroll = new Point2f(-5, 10);
    viewState = new ViewState(viewSize, viewScaling, viewScroll);
    pos = view.computeLP(new Point2i(400, 300), viewState).position;
    assertEquals(pos.x, 45, Delta.DELTA_FLOAT);
    assertEquals(pos.y, 110, Delta.DELTA_FLOAT);
    // screen point 0/0 must be
    // 50+(-5-400*pxToMm/zoom);100+(10-300*pxToMm/zoom)
    // compute relative to page 0, since coordinates are outside
    pos = view.computeLP(new Point2i(0, 0), 0, viewState).position;
    assertEquals(pos.x, 50 + -5 - Units.pxToMm(400, viewScaling), Delta.DELTA_FLOAT);
    assertEquals(pos.y, 100 + 10 - Units.pxToMm(300, viewScaling), Delta.DELTA_FLOAT);
    // when not computed relative to a given page, it must return null
    assertNull(view.computeLP(new Point2i(0, 0), viewState));
    // reset zoom/scroll, then screen point 800/300 must be on page 1
    viewScaling = 1;
    viewScroll = new Point2f(0, 0);
    viewState = new ViewState(viewSize, viewScaling, viewScroll);
    int pageIndex = view.computeLP(new Point2i(800, 300), viewState).pageIndex;
    assertEquals(1, pageIndex);
}

Example 3 with Size2i

use of com.xenoage.utils.math.geom.Size2i in project Zong by Xenoage.

the class GwtCanvasLayoutRenderer method paintToCanvas.

/**
 * Paints the given page of the given {@link Layout} at the given zoom level
 * into the given {@link CanvasElement}, which is resized to include the whole page.
 * The size in pixel is also returned.
 */
public static Size2i paintToCanvas(Layout layout, int pageIndex, float zoom, com.google.gwt.canvas.client.Canvas canvas) {
    Context2d context = canvas.getContext2d();
    // compute size
    Page page = layout.getPages().get(pageIndex);
    Size2f pageSize = page.getFormat().getSize();
    int width = Units.mmToPxInt(pageSize.width, zoom);
    int height = Units.mmToPxInt(pageSize.height, zoom);
    // resize canvas and coordinate space
    canvas.setWidth(width + "px");
    canvas.setHeight(height + "px");
    // double resolution: smoother
    int coordSpaceFactor = 2;
    canvas.setCoordinateSpaceWidth(width * coordSpaceFactor);
    canvas.setCoordinateSpaceHeight(height * coordSpaceFactor);
    context.scale(coordSpaceFactor, coordSpaceFactor);
    // white page
    context.setFillStyle("white");
    context.fillRect(0, 0, width, height);
    // paint layout
    LayoutRenderer.paintToCanvas(layout, pageIndex, zoom, origin, new GwtCanvas(context, CanvasFormat.Raster, CanvasDecoration.Interactive, CanvasIntegrity.Perfect));
    return new Size2i(width, height);
}

Example 4 with Size2i

use of com.xenoage.utils.math.geom.Size2i in project Zong by Xenoage.

the class WebApp method paintLayout.

private void paintLayout() {
    if (scoreDoc != null) {
        Size2i size = GwtCanvasLayoutRenderer.paintToCanvas(scoreDoc.getLayout(), 0, zoom, canvas);
        // also resize the loading panel to the size of the score
        if (loadingPanel != null) {
            loadingPanel.getStyle().setWidth(size.width, PX);
            loadingPanel.getStyle().setHeight(size.height, PX);
        }
    }
}