/// <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();
                }
        }
예제 #2
0
		/// <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();
			}
		}