/// ------------------------------------------------------------------------------------
/// <summary>
/// Return coordinate transformation suitable for screen drawing in the specified
/// element of the specified page.
/// </summary>
/// <param name="page"></param>
/// <param name="pe"></param>
/// <param name="rcSrcRoot"></param>
/// <param name="rcDstRoot"></param>
/// ------------------------------------------------------------------------------------
protected void GetCoordRectsForElt(Page page, PageElement pe, out Rect rcSrcRoot,
out Rect rcDstRoot)
{
// The origin of this rectangle is the offset from the origin of this rootbox's
// data to the origin of this element (in printer pixels). Size is DPI.
Rectangle rectSrc = new Rectangle(0, pe.OffsetToTopPageBoundary - pe.OverlapWithPreviousElement,
(int)(DpiXPrinter), (int)(DpiYPrinter));
rcSrcRoot = new Rect(rectSrc.Left, rectSrc.Top, rectSrc.Right, rectSrc.Bottom);
Rectangle rectElement = pe.PositionInLayoutForScreen(IndexOfPage(page), this,
DpiXScreen, DpiYScreen);
// The origin of this rectangle is the offset from the origin of this element
// to the origin of the clip rectangle (the part of the rc that
// actually pertains to this element) (in screen pixels)
Rectangle rectDst = new Rectangle(rectElement.Left,
rectElement.Top, (int)(DpiXScreen * Zoom), (int)(DpiYScreen * Zoom));
rcDstRoot = new Rect(rectDst.Left, rectDst.Top, rectDst.Right, rectDst.Bottom);
}
public void CalcPageElementWindowRectangle()
{
int dpiScreen = 96;
int dpiXPrinter = m_pub.DpiXPrinter;
int pdiYPrinter = m_pub.DpiYPrinter;
m_pub.PageHeight = (int)(11 * MiscUtils.kdzmpInch);
m_pub.PageWidth = (int)(8.5 * MiscUtils.kdzmpInch);
m_pub.Width = (int)(8.5 * dpiScreen);
Assert.AreEqual(1, m_pub.Zoom, "Physical Page and window should both be 8.5 inches wide");
using (PageElement element = new PageElement(m_firstDivision, null, false,
new Rectangle(dpiXPrinter, pdiYPrinter,
(int)(6.5 * dpiXPrinter), (int)(9 * pdiYPrinter)),
0, true, 1, 1, 0, 9 * pdiYPrinter,0, false))
{
Rectangle expected = new Rectangle(dpiScreen, dpiScreen, (int)(6.5 * dpiScreen), (int)(9 * dpiScreen));
int pageIndex = 0;
Assert.AreEqual(expected, element.PositionInLayoutForScreen(pageIndex, m_pub, dpiScreen, dpiScreen));
pageIndex = 1;
expected.Location = new Point(expected.Left, expected.Top + (int)(11 * dpiScreen) + m_pub.Gap);
Assert.AreEqual(expected, element.PositionInLayoutForScreen(pageIndex, m_pub, dpiScreen, dpiScreen));
// Can't seem to test this because we can't adjust the scroll position, even
// though we set the AutoScrollMinSize, tried showing m_pub, gave it a Height, ...
// m_pub.AutoScrollPosition = new Point(50, 100);
// expected.Location = new Point(expected.Left - 50, expected.Top - 100);
// Assert.AreEqual(expected, element.PositionInWindow(pageIndex, m_pub));
m_pub.Width = (int)(4.25 * dpiScreen);
// Now we should be zoomed to 50%, so each real-world inch is now only a half-inch
// on the screen.
Assert.AreEqual(0.5, m_pub.Zoom);
expected = new Rectangle(48, (int)(12 * 48) + m_pub.Gap, (int)(6.5 * 48), (int)(9 * 48));
Assert.AreEqual(expected, element.PositionInLayoutForScreen(pageIndex, m_pub, dpiScreen, dpiScreen));
}
}