/// <summary>
/// Draw the text using the FieldWorks IVwGraphicsWin32 interface.
/// </summary>
/// <remarks>Only used with Mono</remarks>
private void DrawFwText(Graphics graphics, Rectangle cellBounds,
string text, DataGridViewCellStyle cellStyle, FwTextBoxColumn col)
{
Debug.Assert(Platform.IsMono, "This method is only needed on Mono");
if (String.IsNullOrEmpty(text))
{
return;
}
IntPtr hdc = graphics.GetHdc();
IVwGraphicsWin32 vg = VwGraphicsWin32Class.Create(); // actually VwGraphicsCairo
try
{
vg.Initialize(hdc);
var renderProps = GetRenderProps(cellStyle, col);
vg.SetupGraphics(ref renderProps);
int x;
int y;
GetLocationForText(cellBounds, (col.TextBoxControl.RightToLeft == RightToLeft.Yes),
vg, text, out x, out y);
vg.PushClipRect(cellBounds);
vg.DrawText(x, y, text.Length, text, 0);
vg.PopClipRect();
}
finally
{
vg.ReleaseDC();
graphics.ReleaseHdc(hdc);
}
}
/// <summary>
/// Get the starting location for drawing the text.
/// </summary>
/// <remarks>Only used with Mono</remarks>
private void GetLocationForText(Rectangle cellBounds, bool fRightToLeft,
IVwGraphicsWin32 vg, string text, out int x, out int y)
{
Debug.Assert(Platform.IsMono, "This method is only needed on Mono");
var contentBounds = cellBounds;
contentBounds.Height -= 2;
contentBounds.Width -= 2;
int dx0;
int dy0;
vg.GetTextExtent(text.Length, text, out dx0, out dy0);
if (fRightToLeft)
{
x = contentBounds.Right - (dx0 + 4);
}
else
{
x = contentBounds.Left + 4;
}
int dy = (contentBounds.Height - dy0) / 2;
if (dy > 0)
{
y = contentBounds.Top + dy;
}
else
{
y = contentBounds.Top;
}
}
public void Clipping()
{
IVwGraphicsWin32 vwGraphics = VwGraphicsWin32Class.Create();
Assert.IsNotNull(vwGraphics);
using (var gr = new GraphicsObjectFromImage())
{
// start with a blue background.
using (var blueBrush = new SolidBrush(Color.Blue))
{
gr.Graphics.FillRectangle(blueBrush, new Rectangle(0, 0, 1000, 1000));
// Check that filling with a blue brush worked.
Assert.IsTrue(ColorCompare(gr.Bitmap.GetPixel(500, 500), Color.Blue));
//
// Check that drawing using a VwGraphics works.
//
vwGraphics.Initialize(gr.Graphics.GetHdc());
vwGraphics.PushClipRect(new Utils.Rect(0, 0, 1000, 1000));
vwGraphics.BackColor = ConvertToVwGraphicsColor(Color.Red);
vwGraphics.DrawRectangle(0, 0, 1000, 1000);
vwGraphics.PopClipRect();
vwGraphics.ReleaseDC();
gr.Graphics.ReleaseHdc();
gr.Graphics.Flush();
// Check that drawing a red rectangle using the VwGraphics Interface worked
Assert.IsTrue(ColorCompare(gr.Bitmap.GetPixel(500, 500), Color.Red));
/////
// Check that VwGraphics doesn't draw outside its clip rect.
/////
vwGraphics.Initialize(gr.Graphics.GetHdc());
// make the clip rect not include the area we are going to draw to.
vwGraphics.PushClipRect(new Utils.Rect(100, 100, 200, 200));
// attempt to draw off the clip rect.
vwGraphics.BackColor = ConvertToVwGraphicsColor(Color.Green);
vwGraphics.DrawRectangle(400, 400, 600, 600);
vwGraphics.PopClipRect();
vwGraphics.ReleaseDC();
gr.Graphics.ReleaseHdc();
gr.Graphics.Flush();
// Check that the green rectangle didn't appear on screen.
Assert.IsTrue(!ColorCompare(gr.Bitmap.GetPixel(500, 500), Color.Green));
}
}
}
/// --------------------------------------------------------------------------------
/// <summary>
/// Initializes a new instance of the <see cref="T:HoldDummyGraphics"/> class.
/// </summary>
/// <param name="fontName">Name of the font.</param>
/// <param name="fBold">if set to <c>true</c> [f bold].</param>
/// <param name="fItalic">if set to <c>true</c> [f italic].</param>
/// <param name="ctrl">The parent control</param>
/// --------------------------------------------------------------------------------
public HoldDummyGraphics(string fontName, bool fBold, bool fItalic, Control ctrl)
{
// Make a VwGraphics and initialize it.
IVwGraphicsWin32 vwGraphics32 = VwGraphicsWin32Class.Create();
m_vwGraphics = vwGraphics32;
m_graphics = ctrl.CreateGraphics();
m_hdc = m_graphics.GetHdc();
((IVwGraphicsWin32)m_vwGraphics).Initialize(m_hdc);
// Select our font into it.
var chrp = new LgCharRenderProps();
chrp.szFaceName = new ushort[32];
for (int ich = 0; ich < fontName.Length; ++ich)
{
if (ich < 32)
{
chrp.szFaceName[ich] = fontName[ich];
}
}
if (fontName.Length < 32)
{
chrp.szFaceName[fontName.Length] = 0;
}
else
{
chrp.szFaceName[31] = 0;
}
chrp.ttvBold = (int)(fBold ? FwTextToggleVal.kttvForceOn
: FwTextToggleVal.kttvOff);
chrp.ttvItalic = (int)(fItalic ? FwTextToggleVal.kttvForceOn
: FwTextToggleVal.kttvOff);
m_vwGraphics.SetupGraphics(ref chrp);
}
protected void ProcessInitialize(IEnumerable <string> arguments)
{
string handle = arguments.Skip(1).First();
if (VwGraphicsLookup.Keys.Contains(handle))
{
var bitmap = new Bitmap(1000, 1000);
Graphics gr = Graphics.FromImage(bitmap);
VwGraphicsLookup[handle].Initialize(gr.GetHdc());
GraphicsLookup[handle] = gr;
BitmapLookup[handle] = bitmap;
}
else
{
IVwGraphicsWin32 vwGraphics = VwGraphicsWin32Class.Create();
var bitmap = new Bitmap(1000, 1000);
Graphics gr = Graphics.FromImage(bitmap);
vwGraphics.Initialize(gr.GetHdc());
VwGraphicsLookup.Add(handle, vwGraphics);
GraphicsLookup[handle] = gr;
BitmapLookup[handle] = bitmap;
m_vwGraphics32 = vwGraphics;
}
}
public void GetTextExtentWithEmptyString()
{
IVwGraphicsWin32 vwGraphics = VwGraphicsWin32Class.Create();
Assert.IsNotNull(vwGraphics);
using (var gr = new GraphicsObjectFromImage())
{
const int areaWidth = 1000;
const int areaHeight = 1000;
vwGraphics.Initialize(gr.Graphics.GetHdc());
vwGraphics.PushClipRect(new Utils.Rect(0, 0, areaWidth, areaHeight));
vwGraphics.ForeColor = ConvertToVwGraphicsColor(Color.Black);
int extentX;
int extentY;
vwGraphics.GetTextExtent(0, String.Empty, out extentX, out extentY);
Assert.That(extentX == 0, "extentX should equal 0");
Assert.That(extentY > 0, "extentY should be greater than 0");
vwGraphics.PopClipRect();
vwGraphics.ReleaseDC();
gr.Graphics.ReleaseHdc();
}
}
/// <summary>
/// See C++ documentation
/// </summary>
public void DrawTheRootAt(IVwRootBox prootb, IntPtr hdc, Rect rcpDraw, uint bkclr,
bool fDrawSel, IVwGraphics pvg, Rect rcSrc, Rect rcDst, int ysTop, int dysHeight)
{
IVwGraphicsWin32 qvg32 = VwGraphicsWin32Class.Create();
using (Graphics screen = Graphics.FromHdc(hdc))
{
Rectangle rcp = rcpDraw;
Rectangle rcFill = new Rect(0, 0, rcp.Width, rcp.Height);
using (var memoryBuffer = new MemoryBuffer(rcp.Width, rcp.Height))
{
memoryBuffer.Graphics.FillRectangle(new SolidBrush(ColorUtil.ConvertBGRtoColor(bkclr)), rcFill);
qvg32.Initialize(memoryBuffer.Graphics.GetHdc());
qvg32.XUnitsPerInch = rcDst.right - rcDst.left;
qvg32.YUnitsPerInch = rcDst.bottom - rcDst.top;
try
{
prootb.DrawRoot2(qvg32, rcSrc, rcDst, fDrawSel, ysTop, dysHeight);
}
catch (Exception)
{
qvg32.ReleaseDC();
throw;
}
screen.DrawImageUnscaled(memoryBuffer.Bitmap, rcp);
qvg32.ReleaseDC();
}
}
}
/// <summary>
/// Get the starting location for drawing the text.
/// </summary>
private void GetLocationForText(Rectangle cellBounds, bool fRightToLeft,
IVwGraphicsWin32 vg, string text, out int x, out int y)
{
var contentBounds = cellBounds;
contentBounds.Height -= 2;
contentBounds.Width -= 2;
int dx0;
int dy0;
vg.GetTextExtent(text.Length, text, out dx0, out dy0);
if (fRightToLeft)
{
x = contentBounds.Right - (dx0 + 4);
}
else
{
x = contentBounds.Left + 4;
}
int dy = (contentBounds.Height - dy0) / 2;
if (dy > 0)
{
y = contentBounds.Top + dy;
}
else
{
y = contentBounds.Top;
}
}
/// <summary>
/// Skip the argument name
/// Read the ptr value which should always be the first item.
/// Return the rest of the parameters (if any)
/// </summary>
protected IEnumerable <string> SwitchToCorrectVwGraphics(IEnumerable <string> arguments)
{
var ptr = arguments.Skip(1);
m_currentVwGraphicHandle = ptr.First();
if (VwGraphicsLookup.Keys.Contains(ptr.First()))
{
m_vwGraphics32 = VwGraphicsLookup[ptr.First()];
}
return(ptr.Skip(1));
}
public void SimpleCreationAndRelease()
{
IVwGraphicsWin32 vwGraphics = VwGraphicsWin32Class.Create();
Assert.IsNotNull(vwGraphics);
using (var gr = new GraphicsObjectFromImage())
{
vwGraphics.Initialize(gr.Graphics.GetHdc());
vwGraphics.ReleaseDC();
}
}
void Dispose(bool properly)
{
// Can't do anything sensible if called from destructor; nothing to do if somehow called twice.
if (!properly || m_graphics == null)
return;
IntPtr hdc = m_vwGraphics.GetDeviceContext();
m_vwGraphics.ReleaseDC();
if (hdc != IntPtr.Zero)
m_graphics.ReleaseHdc(hdc);
m_vwGraphics = null;
if (m_shouldDisposeGraphics)
m_graphics.Dispose();
m_graphics = null;
}
/// <summary>
/// Draws the Root into a memory buffer, then rotates it 90deg clockwise while drawing
/// the memory buffer to the screen.
/// See C++ documentation for more info.
/// </summary>
public void DrawTheRootRotated(IVwRootBox rootb, IntPtr hdc, Rect rcpDraw, uint bkclr,
bool fDrawSel, IVwRootSite vrs, int nHow)
{
IVwGraphicsWin32 qvg32 = VwGraphicsWin32Class.Create();
Rectangle rcp = new Rectangle(rcpDraw.top, rcpDraw.left, rcpDraw.bottom, rcpDraw.right);
Rectangle rcFill = new Rect(0, 0, rcp.Width, rcp.Height);
using (Graphics screen = Graphics.FromHdc(hdc))
using (var memoryBuffer = new MemoryBuffer(rcp.Width, rcp.Height))
{
memoryBuffer.Graphics.FillRectangle(new SolidBrush(ColorUtil.ConvertBGRtoColor(bkclr)), rcFill);
qvg32.Initialize(memoryBuffer.Graphics.GetHdc());
IVwGraphics qvgDummy = null;
try
{
Rect rcDst, rcSrc;
vrs.GetGraphics(rootb, out qvgDummy, out rcSrc, out rcDst);
Rectangle temp = rcDst;
temp.Offset(-rcp.Left, -rcp.Top);
rcDst = temp;
qvg32.XUnitsPerInch = qvgDummy.XUnitsPerInch;
qvg32.YUnitsPerInch = qvgDummy.YUnitsPerInch;
rootb.DrawRoot(qvg32, rcSrc, rcDst, fDrawSel);
vrs.ReleaseGraphics(rootb, qvgDummy);
qvgDummy = null;
}
catch (Exception)
{
if (qvgDummy != null)
{
vrs.ReleaseGraphics(rootb, qvgDummy);
}
qvg32.ReleaseDC();
throw;
}
Point[] rgptTransform = new Point[3];
rgptTransform[0] = new Point(rcpDraw.right, rcpDraw.top); // upper left of actual drawing maps to top right of rotated drawing
rgptTransform[1] = new Point(rcpDraw.right, rcpDraw.bottom); // upper right of actual drawing maps to bottom right of rotated drawing.
rgptTransform[2] = new Point(rcpDraw.left, rcpDraw.top); // bottom left of actual drawing maps to top left of rotated drawing.
screen.DrawImage((Image)memoryBuffer.Bitmap, rgptTransform, new Rectangle(0, 0, rcp.Width, rcp.Height), GraphicsUnit.Pixel);
qvg32.ReleaseDC();
}
}
/// ------------------------------------------------------------------------------------
/// <summary>
///
/// </summary>
/// <param name="disposing"></param>
/// ------------------------------------------------------------------------------------
protected void Dispose(bool disposing)
{
if (disposing)
{
Debug.Assert(m_cactInitGraphics == 0, "We should release the HDC before disposing");
if (m_graphics != null)
{
m_graphics.Dispose();
}
}
m_graphics = null;
m_vwGraphics = null;
m_parent = null;
m_fDisposed = true;
}
/// ------------------------------------------------------------------------------------
/// <summary>
/// Make sure the graphics object has a DC. If it already has, increment a count,
/// so we know when to really free the DC.
/// </summary>
/// <param name="dpix">The DPI in the x direction.</param>
/// <param name="dpiy">The DPI in the y direction.</param>
/// <param name="zoom">The zoom percentage.</param>
/// ------------------------------------------------------------------------------------
private void Init(int dpix, int dpiy, float zoom)
{
CheckDisposed();
if (m_cactInitGraphics == 0)
{
// We are asking for a VwGraphics but haven't been given a DC. Make one.
// (ReleaseHdc is called in Uninit!)
// TODO: we might want a graphics appropriate for our printer.
m_graphics = m_parent.CreateGraphics();
if (m_vwGraphics == null)
{
m_vwGraphics = VwGraphicsWin32Class.Create();
}
if (m_graphics != null)
{
if (dpix <= 0)
{
dpix = (int)(m_graphics.DpiX * zoom);
}
if (dpiy <= 0)
{
dpiy = (int)(m_graphics.DpiY * zoom);
}
IntPtr hdc = m_graphics.GetHdc();
m_vwGraphics.Initialize(hdc);
}
else
{
// we think m_graphics should never be null. But it has happened (see e.g. LTB-708).
// So provide a desperate fall-back.
if (dpix <= 0)
{
dpix = 96;
}
if (dpiy <= 0)
{
dpiy = 96;
}
SIL.Utils.Logger.WriteEvent(String.Format("WARNING: failed to create m_graphics in GraphicsManager.Init({0}, {1}, {2})", dpix, dpiy, zoom));
}
m_vwGraphics.XUnitsPerInch = dpix;
m_vwGraphics.YUnitsPerInch = dpiy;
}
m_cactInitGraphics++;
}
/// ------------------------------------------------------------------------------------
/// <summary>
///
/// </summary>
/// <param name="disposing"></param>
/// ------------------------------------------------------------------------------------
protected virtual void Dispose(bool disposing)
{
Debug.WriteLineIf(!disposing, "****************** Missing Dispose() call for " + GetType().Name + "******************");
if (disposing)
{
Debug.Assert(m_cactInitGraphics == 0, "We should release the HDC before disposing");
if (m_graphics != null)
{
m_graphics.Dispose();
}
}
m_graphics = null;
m_vwGraphics = null;
m_parent = null;
m_fDisposed = true;
}
internal void TestGetTextExtentHelper(string testString)
{
IVwGraphicsWin32 vwGraphics = VwGraphicsWin32Class.Create();
Assert.IsNotNull(vwGraphics);
using (var gr = new GraphicsObjectFromImage())
{
const int areaWidth = 500;
const int areaHeight = 500;
// start with a White background.
using (var blueBrush = new SolidBrush(Color.White))
{
gr.Graphics.FillRectangle(blueBrush, new Rectangle(0, 0, areaWidth, areaHeight));
Assert.AreEqual(-1, SearchForBottomMostNonWhitePixel(gr.Bitmap, areaWidth, areaHeight), "Should all be white #1");
Assert.AreEqual(-1, SearchForRightMostNonWhitePixel(gr.Bitmap, areaWidth, areaHeight), "Should all be white #2");
vwGraphics.Initialize(gr.Graphics.GetHdc());
vwGraphics.PushClipRect(new Utils.Rect(0, 0, areaWidth, areaHeight));
vwGraphics.ForeColor = ConvertToVwGraphicsColor(Color.Black);
int extentX;
int extentY;
vwGraphics.GetTextExtent(testString.Length, testString, out extentX, out extentY);
Assert.That(extentX > 0, "extentX should be greater than 0");
Assert.That(extentY > 0, "extentY should be greater than 0");
vwGraphics.DrawText(0, 0, testString.Length, testString, 0);
vwGraphics.PopClipRect();
vwGraphics.ReleaseDC();
gr.Graphics.ReleaseHdc();
gr.Graphics.Flush();
Assert.That(SearchForBottomMostNonWhitePixel(gr.Bitmap, areaWidth, areaHeight) <= extentY, String.Format("Should be <= {0}", extentY));
Assert.That(SearchForRightMostNonWhitePixel(gr.Bitmap, areaWidth, areaHeight) <= extentX, String.Format("Should be <= {0}", extentX));
}
}
}
public void LargeRectangles()
{
// EB/2011-02-08: this test is failing for me on Linux. Not sure if it should work
// or what (see FWNX-449). Test is failing in FillRectangle similar to the failure
// in the following comment
// https://www.jira.insitehome.org/browse/FWNX-449?focusedCommentId=108054&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-108054
IVwGraphicsWin32 vwGraphics = VwGraphicsWin32Class.Create();
Assert.IsNotNull(vwGraphics);
const int width = 1241;
const int height = 56080; // something bigger than MAX_IMAGE_SIZE (32767)
using (var gr = new GraphicsObjectFromImage(width, height))
{
// start with a blue background.
using (var blueBrush = new SolidBrush(Color.Blue))
{
gr.Graphics.FillRectangle(blueBrush, new Rectangle(0, 0, width, height));
// Check that filling with a blue brush worked.
Assert.IsTrue(ColorCompare(gr.Bitmap.GetPixel(width - 1, height - 1), Color.Blue));
/////
// Check that drawing using a VwGraphics works.
////
vwGraphics.Initialize(gr.Graphics.GetHdc());
vwGraphics.PushClipRect(new Utils.Rect(0, 0, width, height));
vwGraphics.BackColor = ConvertToVwGraphicsColor(Color.Red);
vwGraphics.DrawRectangle(0, 0, width, height);
vwGraphics.PopClipRect();
vwGraphics.ReleaseDC();
gr.Graphics.ReleaseHdc();
gr.Graphics.Flush();
// Check that drawing a red rectangle using the VwGraphics Interface worked
Assert.IsTrue(ColorCompare(gr.Bitmap.GetPixel(width - 1, height - 1), Color.Red));
}
}
}
public void ComplexClipping()
{
IVwGraphicsWin32 vwGraphics = VwGraphicsWin32Class.Create();
Assert.IsNotNull(vwGraphics);
using (var gr = new GraphicsObjectFromImage())
{
vwGraphics.Initialize(gr.Graphics.GetHdc());
// Test on a single push
int left, top, right, bottom;
vwGraphics.PushClipRect(new Utils.Rect(50, 60, 500, 510));
vwGraphics.GetClipRect(out left, out top, out right, out bottom);
Assert.AreEqual(50, left, "Left doesn't match");
Assert.AreEqual(60, top, "Top doesn't match");
Assert.AreEqual(500, right, "Right doesn't match");
Assert.AreEqual(510, bottom, "Bottom doesn't match");
// Test on a second push
vwGraphics.PushClipRect(new Utils.Rect(1, 1, 300, 310));
vwGraphics.GetClipRect(out left, out top, out right, out bottom);
Assert.AreEqual(50, left, "Left doesn't match");
Assert.AreEqual(60, top, "Top doesn't match");
Assert.AreEqual(300, right, "Right doesn't match");
Assert.AreEqual(310, bottom, "Bottom doesn't match");
vwGraphics.PopClipRect();
vwGraphics.GetClipRect(out left, out top, out right, out bottom);
Assert.AreEqual(50, left, "Left doesn't match");
Assert.AreEqual(60, top, "Top doesn't match");
Assert.AreEqual(500, right, "Right doesn't match");
Assert.AreEqual(510, bottom, "Bottom doesn't match");
vwGraphics.PopClipRect();
vwGraphics.GetClipRect(out left, out top, out right, out bottom);
Assert.AreEqual(0, left, "Left doesn't match");
Assert.AreEqual(0, top, "Top doesn't match");
Assert.AreEqual(1000, right, "Right doesn't match");
Assert.AreEqual(1000, bottom, "Bottom doesn't match");
vwGraphics.ReleaseDC();
gr.Graphics.ReleaseHdc();
}
}
public void TextClipping()
{
const string longString = "abcdefghijklmnopqrstuvwzyzabcdefghijklmnopqrstuvwzyzabcdefghijklmnopqrstuvwzyz";
IVwGraphicsWin32 vwGraphics = VwGraphicsWin32Class.Create();
Assert.IsNotNull(vwGraphics);
using (var gr = new GraphicsObjectFromImage())
{
const int areaWidth = 500;
const int areaHeight = 500;
const int clipLeft = 300;
const int clipRight = 400;
// start with a White background.
using (var blueBrush = new SolidBrush(Color.White))
{
gr.Graphics.FillRectangle(blueBrush, new Rectangle(0, 0, areaWidth, areaHeight));
Assert.AreEqual(-1, SearchForBottomMostNonWhitePixel(gr.Bitmap, areaWidth, areaHeight), "Should all be white #1");
Assert.AreEqual(-1, SearchForRightMostNonWhitePixel(gr.Bitmap, areaWidth, areaHeight), "Should all be white #2");
vwGraphics.Initialize(gr.Graphics.GetHdc());
vwGraphics.PushClipRect(new Utils.Rect(clipLeft, 0, clipRight, areaHeight));
vwGraphics.ForeColor = ConvertToVwGraphicsColor(Color.Black);
vwGraphics.DrawText(0, 0, longString.Length, longString, 0);
vwGraphics.PopClipRect();
vwGraphics.ReleaseDC();
gr.Graphics.ReleaseHdc();
gr.Graphics.Flush();
Assert.That(SearchForLeftMostNonWhitePixel(gr.Bitmap, areaWidth, areaHeight) >= clipLeft, String.Format("Should be >= {0}", clipLeft));
Assert.That(SearchForRightMostNonWhitePixel(gr.Bitmap, areaWidth, areaHeight) <= clipRight, String.Format("Should be <= {0}", clipRight));
}
}
}
void Dispose(bool properly)
{
// Can't do anything sensible if called from destructor; nothing to do if somehow called twice.
if (!properly || m_graphics == null)
{
return;
}
IntPtr hdc = m_vwGraphics.GetDeviceContext();
m_vwGraphics.ReleaseDC();
if (hdc != IntPtr.Zero)
{
m_graphics.ReleaseHdc(hdc);
}
m_vwGraphics = null;
if (m_shouldDisposeGraphics)
{
m_graphics.Dispose();
}
m_graphics = null;
}
public void GetClipRect()
{
IVwGraphicsWin32 vwGraphics = VwGraphicsWin32Class.Create();
Assert.IsNotNull(vwGraphics);
using (var gr = new GraphicsObjectFromImage())
{
vwGraphics.Initialize(gr.Graphics.GetHdc());
var rect1 = new Utils.Rect(0, 0, 1000, 1000);
var rect2 = new Utils.Rect(500, 500, 700, 700);
vwGraphics.PushClipRect(rect1);
int left, top, right, bottom;
vwGraphics.GetClipRect(out left, out top, out right, out bottom);
Assert.IsTrue(left == rect1.left, "First push failed: left");
Assert.IsTrue(right == rect1.right, "First push failed: right");
Assert.IsTrue(top == rect1.top, "First push failed: top");
Assert.IsTrue(bottom == rect1.bottom, "First push failed: bottom");
// try a second rectangle
vwGraphics.PushClipRect(rect2);
vwGraphics.GetClipRect(out left, out top, out right, out bottom);
Assert.IsTrue(left == rect2.left, "Second push failed: left");
Assert.IsTrue(right == rect2.right, "Second push failed: right");
Assert.IsTrue(top == rect2.top, "Second push failed: top");
Assert.IsTrue(bottom == rect2.bottom, "Second push failed: bottom");
vwGraphics.PopClipRect();
vwGraphics.PopClipRect();
vwGraphics.ReleaseDC();
gr.Graphics.ReleaseHdc();
}
}
/// <summary>
/// Make one with the specified control and Graphics (typically passed in to a Paint method). The Graphics will not be disposed.
/// </summary>
public GraphicsManager(Control c, Graphics g)
{
m_graphics = g;
if (g == null)
{
m_graphics = c.CreateGraphics();
m_shouldDisposeGraphics = true;
}
m_vwGraphics = VwGraphicsWin32Class.Create();
double zoom = 1.0; // eventually an argument, probably
m_dpiX = m_graphics.DpiX;
m_dpiY = m_graphics.DpiY;
int dpix = (int)(m_dpiX * zoom);
int dpiy = (int)(m_dpiY * zoom);
IntPtr hdc = m_graphics.GetHdc();
m_vwGraphics.Initialize(hdc);
m_vwGraphics.XUnitsPerInch = dpix;
m_vwGraphics.YUnitsPerInch = dpiy;
m_vwGraphics.BackColor = (int)FwTextColor.kclrTransparent;
}
public void SetClipRect()
{
IVwGraphicsWin32 vwGraphics = VwGraphicsWin32Class.Create();
Assert.IsNotNull(vwGraphics);
using (var gr = new GraphicsObjectFromImage())
{
vwGraphics.Initialize(gr.Graphics.GetHdc());
int left, top, right, bottom;
var rect = new Utils.Rect(50, 25, 1000, 1000);
vwGraphics.SetClipRect(ref rect);
vwGraphics.GetClipRect(out left, out top, out right, out bottom);
Assert.AreEqual(50, left, "Left doesn't match");
Assert.AreEqual(25, top, "Top doesn't match");
Assert.AreEqual(1000, right, "Right doesn't match");
Assert.AreEqual(1000, bottom, "Bottom doesn't match");
}
}
/// ------------------------------------------------------------------------------------
/// <summary>
///
/// </summary>
/// <param name="disposing"></param>
/// ------------------------------------------------------------------------------------
protected virtual void Dispose(bool disposing)
{
Debug.WriteLineIf(!disposing, "****************** Missing Dispose() call for " + GetType().Name + "******************");
if (disposing)
{
Debug.Assert(m_cactInitGraphics == 0, "We should release the HDC before disposing");
if (m_graphics != null)
m_graphics.Dispose();
}
m_graphics = null;
m_vwGraphics = null;
m_parent = null;
m_fDisposed = true;
}
/// ------------------------------------------------------------------------------------
/// <summary>
/// Make sure the graphics object has a DC. If it already has, increment a count,
/// so we know when to really free the DC.
/// </summary>
/// <param name="dpix">The DPI in the x direction.</param>
/// <param name="dpiy">The DPI in the y direction.</param>
/// <param name="zoom">The zoom percentage.</param>
/// ------------------------------------------------------------------------------------
private void Init(int dpix, int dpiy, float zoom)
{
CheckDisposed();
if (m_cactInitGraphics == 0)
{
// We are asking for a VwGraphics but haven't been given a DC. Make one.
// (ReleaseHdc is called in Uninit!)
// TODO: we might want a graphics appropriate for our printer.
m_graphics = m_parent.CreateGraphics();
if (m_vwGraphics == null)
m_vwGraphics = VwGraphicsWin32Class.Create();
if (m_graphics != null)
{
if (dpix <= 0)
dpix = (int) (m_graphics.DpiX*zoom);
if (dpiy <= 0)
dpiy = (int) (m_graphics.DpiY*zoom);
IntPtr hdc = m_graphics.GetHdc();
m_vwGraphics.Initialize(hdc);
}
else
{
// we think m_graphics should never be null. But it has happened (see e.g. LTB-708).
// So provide a desperate fall-back.
if (dpix <= 0)
dpix = 96;
if (dpiy <= 0)
dpiy = 96;
SIL.Utils.Logger.WriteEvent(String.Format("WARNING: failed to create m_graphics in GraphicsManager.Init({0}, {1}, {2})", dpix, dpiy, zoom));
}
m_vwGraphics.XUnitsPerInch = dpix;
m_vwGraphics.YUnitsPerInch = dpiy;
}
m_cactInitGraphics++;
}
/// --------------------------------------------------------------------------------
/// <summary>
/// Sets the VwGraphics object.
/// </summary>
/// <param name="vwGraphics">The VwGraphics object.</param>
/// --------------------------------------------------------------------------------
public void SetVwGraphics(IVwGraphicsWin32 vwGraphics)
{
m_vwGraphics = vwGraphics;
}
/// <summary>
/// Skip the argument name
/// Read the ptr value which should always be the first item.
/// Return the rest of the parameters (if any)
/// </summary>
protected IEnumerable<string> SwitchToCorrectVwGraphics(IEnumerable<string> arguments)
{
var ptr = arguments.Skip(1);
m_currentVwGraphicHandle = ptr.First();
if (VwGraphicsLookup.Keys.Contains(ptr.First()))
m_vwGraphics32 = VwGraphicsLookup[ptr.First()];
return ptr.Skip(1);
}
protected void ProcessInitialize(IEnumerable<string> arguments)
{
string handle = arguments.Skip(1).First();
if (VwGraphicsLookup.Keys.Contains(handle))
{
var bitmap = new Bitmap(1000,1000);
Graphics gr = Graphics.FromImage(bitmap);
VwGraphicsLookup[handle].Initialize(gr.GetHdc());
GraphicsLookup[handle] = gr;
BitmapLookup[handle] = bitmap;
}
else
{
IVwGraphicsWin32 vwGraphics = VwGraphicsWin32Class.Create();
var bitmap = new Bitmap(1000,1000);
Graphics gr = Graphics.FromImage(bitmap);
vwGraphics.Initialize(gr.GetHdc());
VwGraphicsLookup.Add(handle, vwGraphics);
GraphicsLookup[handle] = gr;
BitmapLookup[handle] = bitmap;
m_vwGraphics32 = vwGraphics;
}
}
/// <summary>
/// Get the starting location for drawing the text.
/// </summary>
private void GetLocationForText(Rectangle cellBounds, bool fRightToLeft,
IVwGraphicsWin32 vg, string text, out int x, out int y)
{
var contentBounds = cellBounds;
contentBounds.Height -= 2;
contentBounds.Width -= 2;
int dx0;
int dy0;
vg.GetTextExtent(text.Length, text, out dx0, out dy0);
if (fRightToLeft)
{
x = contentBounds.Right - (dx0 + 4);
}
else
{
x = contentBounds.Left + 4;
}
int dy = (contentBounds.Height - dy0) / 2;
if (dy > 0)
y = contentBounds.Top + dy;
else
y = contentBounds.Top;
}
/// ------------------------------------------------------------------------------------
/// <summary>
///
/// </summary>
/// <param name="disposing"></param>
/// ------------------------------------------------------------------------------------
protected void Dispose(bool disposing)
{
if (disposing)
{
Debug.Assert(m_cactInitGraphics == 0, "We should release the HDC before disposing");
if (m_graphics != null)
m_graphics.Dispose();
}
m_graphics = null;
m_vwGraphics = null;
m_parent = null;
m_fDisposed = true;
}
/// --------------------------------------------------------------------------------
/// <summary>
/// Sets the VwGraphics object.
/// </summary>
/// <param name="vwGraphics">The VwGraphics object.</param>
/// --------------------------------------------------------------------------------
public void SetVwGraphics(IVwGraphicsWin32 vwGraphics)
{
m_vwGraphics = vwGraphics;
}
/// <summary>
/// See C++ documentation
/// </summary>
public void DrawTheRoot(IVwRootBox prootb, IntPtr hdc, Rect rcpDraw, uint bkclr,
bool fDrawSel, IVwRootSite pvrs)
{
IVwSynchronizer synchronizer = prootb.Synchronizer;
if (synchronizer != null)
{
try
{
if (synchronizer.IsExpandingLazyItems)
{
return;
}
}
catch (Exception e)
{
Console.WriteLine("call to IsExpandingLazyItems caused exceptionException e ={0}", e);
}
}
IVwGraphicsWin32 qvg = VwGraphicsWin32Class.Create();
Rectangle rcp = rcpDraw;
using (Graphics screen = Graphics.FromHdc(hdc))
using (var memoryBuffer = new MemoryBuffer(rcp.Width, rcp.Height))
{
memoryBuffer.Graphics.FillRectangle(new SolidBrush(ColorUtil.ConvertBGRtoColor(bkclr)), 0, 0,
rcp.Width, rcp.Height);
qvg.Initialize(memoryBuffer.Graphics.GetHdc());
VwPrepDrawResult xpdr = VwPrepDrawResult.kxpdrAdjust;
IVwGraphics qvgDummy = null;
try
{
Rect rcDst, rcSrc;
while (xpdr == VwPrepDrawResult.kxpdrAdjust)
{
pvrs.GetGraphics(prootb, out qvgDummy, out rcSrc, out rcDst);
Rectangle temp = rcDst;
temp.Offset(-rcp.Left, -rcp.Top);
rcDst = temp;
qvg.XUnitsPerInch = qvgDummy.XUnitsPerInch;
qvg.YUnitsPerInch = qvgDummy.YUnitsPerInch;
xpdr = prootb.PrepareToDraw(qvg, rcSrc, rcDst);
pvrs.ReleaseGraphics(prootb, qvgDummy);
qvgDummy = null;
}
if (xpdr != VwPrepDrawResult.kxpdrInvalidate)
{
pvrs.GetGraphics(prootb, out qvgDummy, out rcSrc, out rcDst);
Rectangle temp = rcDst;
temp.Offset(-rcp.Left, -rcp.Top);
rcDst = temp;
qvg.XUnitsPerInch = qvgDummy.XUnitsPerInch;
qvg.YUnitsPerInch = qvgDummy.YUnitsPerInch;
try
{
prootb.DrawRoot(qvg, rcSrc, rcDst, fDrawSel);
}
catch (Exception e)
{
Console.WriteLine("DrawRoot e = {0} qvg = {1} rcSrc = {2} rcDst = {3} fDrawSel = {4}", e, qvg, rcSrc, rcDst, fDrawSel);
}
pvrs.ReleaseGraphics(prootb, qvgDummy);
qvgDummy = null;
}
}
catch (Exception)
{
if (qvgDummy != null)
{
pvrs.ReleaseGraphics(prootb, qvgDummy);
}
qvg.ReleaseDC();
throw;
}
if (xpdr != VwPrepDrawResult.kxpdrInvalidate)
{
screen.DrawImageUnscaled(memoryBuffer.Bitmap, rcp.Left, rcp.Top, rcp.Width, rcp.Height);
}
qvg.ReleaseDC();
}
}
/// <summary>
/// Make one with the specified control and Graphics (typically passed in to a Paint method). The Graphics will not be disposed.
/// </summary>
public GraphicsManager(Control c, Graphics g)
{
m_graphics = g;
if (g == null)
{
m_graphics = c.CreateGraphics();
m_shouldDisposeGraphics = true;
}
m_vwGraphics = VwGraphicsWin32Class.Create();
double zoom = 1.0; // eventually an argument, probably
m_dpiX = m_graphics.DpiX;
m_dpiY = m_graphics.DpiY;
int dpix = (int)(m_dpiX * zoom);
int dpiy = (int)(m_dpiY * zoom);
IntPtr hdc = m_graphics.GetHdc();
m_vwGraphics.Initialize(hdc);
m_vwGraphics.XUnitsPerInch = dpix;
m_vwGraphics.YUnitsPerInch = dpiy;
m_vwGraphics.BackColor = (int)FwTextColor.kclrTransparent;
}
