private void SelectObject(object obj)
{
if (obj == null)
{
throw(new ArgumentNullException("obj"));
}
if (obj is GdiPen)
{
GdiPen pen = (GdiPen)obj;
_currentPen = pen;
Win32.SelectObject(_hdc, pen.NativePen);
}
else if (obj is GdiBrush)
{
GdiBrush brush = (GdiBrush)obj;
_currentBrush = brush;
Win32.SelectObject(_hdc, brush.NativeBrush);
}
else if (obj is GdiFont)
{
GdiFont font = (GdiFont)obj;
_currentFont = font;
Win32.SelectObject(_hdc, font.NativeFont);
}
else
{
throw(new Exception("Unknow gdi object"));
}
}
public void PaintNavigationMap(MindMap map, float zoom, PaintEventArgs e)
{
if (map == null)
{
throw new ArgumentNullException();
}
var graphics = new GdiGraphics(e.Graphics);
ResetObjects(graphics, map);
if (!map.BackColor.IsEmpty)
{
e.Graphics.Clear(map.BackColor);
}
if (map.Root != null)
{
Liner = LayoutManage.GetLiner(map.LayoutType);
Font font = ChartBox.DefaultChartFont;
var font2 = new GdiFont(font.FontFamily, font.Size * zoom);
//GenerateFoldingButtonImage(map, zoom);
PaintNavigationMap(graphics, map.Root, zoom, font2);
PaintNavigationMapLinkLines(graphics, map.Root, zoom, font2);
}
}
cmdFanBlade_Click(object sender, EventArgs e)
{
int cIncrement = degRotate;
if (cIncrement == 0)
{
cIncrement = 45;
}
IntPtr hdc = GdiGraphics.GetDC(m_hwndForm);
for (int i = 0; i < 360; i += cIncrement)
{
IntPtr hfont = GdiFont.Create(hdc, "Tahoma", 12, i);
IntPtr hfontOld = GdiGraphics.SelectObject(hdc, hfont);
GdiGraphics.ExtTextOut(hdc, m_xText, m_yText, 0,
IntPtr.Zero, "Rotated Text", 12, IntPtr.Zero);
GdiGraphics.SelectObject(hdc, hfontOld);
GdiGraphics.DeleteObject(hfont);
}
GdiGraphics.ReleaseDC(m_hwndForm, hdc);
}
} // SetHorizontalAlignment
//
// Calculate font baseline for baseline alignment.
//
private int GetFontBaseline(string strFont, int cptHeight)
{
int cyReturn;
// Fetch a Win32 DC.
IntPtr hdc = GdiGraphics.GetDC(m_hwndForm);
// Create a Win32 font.
IntPtr hfont = GdiFont.Create(hdc, strFont, cptHeight, 0);
// Select font into DC.
IntPtr hfontOld = GdiGraphics.SelectObject(hdc, hfont);
// Allocate font metric structure.
GdiFont.TEXTMETRIC tm =
new GdiFont.TEXTMETRIC();
// Fetch font metrics.
GdiFont.GetTextMetrics(hdc, ref tm);
// Fetch return value.
cyReturn = tm.tmAscent;
// Disconnect font from DC -- *Critical* because....
GdiGraphics.SelectObject(hdc, hfontOld);
// ... clean up of Win32 font object requires font to
// be disconnected from any and all DCs.
GdiGraphics.DeleteObject(hfont);
// Disconnect from Win32 DC.
GdiGraphics.ReleaseDC(m_hwndForm, hdc);
return(cyReturn);
} // GetFontBaseline
FormMain_Paint(object sender, PaintEventArgs e)
{
// Fetch a Win32 DC.
IntPtr hdc = GdiGraphics.GetDC(m_hwndForm);
// Create a Win32 font.
IntPtr hfont = GdiFont.Create(hdc, "Tahoma", 12, m_degRotate);
// Select font into DC.
IntPtr hfontOld = GdiGraphics.SelectObject(hdc, hfont);
// Draw using Win32 text drawing function.
GdiGraphics.ExtTextOut(hdc, m_xText, m_yText, 0,
IntPtr.Zero, "Rotated Text", 12, IntPtr.Zero);
// Disconnect font from DC -- *Critical* because....
GdiGraphics.SelectObject(hdc, hfontOld);
// ... clean up of Win32 font object requires font to
// be disconnected from any and all DCs.
GdiGraphics.DeleteObject(hfont);
// Disconnect from Win32 DC.
GdiGraphics.ReleaseDC(m_hwndForm, hdc);
}
mitemFilePrint_Click(object sender, EventArgs e)
{
// Display dialog to select printer & port.
PAGESETUPDLGSTRUCT psd;
psd = new PAGESETUPDLGSTRUCT();
PrintSetupDlg.InitDlgStruct(ref psd, hwndForm);
int iErr = PrintSetupDlg.ShowDialog(ref psd);
if (iErr == 0)
{
// Either error...
string strErr = PrintSetupDlg.GetErrorString();
if (strErr != "Ok")
{
MessageBox.Show(strErr, "PrintGdi");
}
// ...Or user clicked <Cancel>
return;
}
IntPtr hdcPrinter = IntPtr.Zero;
IntPtr hfont = IntPtr.Zero;
IntPtr hfontOld = IntPtr.Zero;
try
{
// Connect to printer by creating a DC.
hdcPrinter = Printing.CreatePrinterDC(ref psd);
if (hdcPrinter != IntPtr.Zero)
{
// Select font.
hfont = GdiFont.Create(tboxInput.Font.Name,
(int)tboxInput.Font.Size, 0, hdcPrinter);
hfontOld = GdiGraphics.SelectObject(hdcPrinter, hfont);
// Print
PrintJob_Gdi.PrintText(tboxInput, hdcPrinter);
}
else
{
throw new System.Exception();
}
}
catch
{
MessageBox.Show("Error connecting to printer.", "PrintGdi");
}
finally
{
// Cleanup
GdiGraphics.SelectObject(hdcPrinter, hfontOld);
GdiGraphics.DeleteObject(hfont);
Printing.DeleteDC(hdcPrinter);
// Clean up resources associated with print dialog.
PrintSetupDlg.Close(ref psd);
}
}
/// <summary>
/// Creates a <see cref="GdiFontMetrics"/> object from <b>baseFontName</b>
/// </summary>
private void ObtainFontMetrics()
{
dc = new GdiDeviceContent();
GdiFont font = GdiFont.CreateDesignFont(
properties.FaceName, properties.IsBold, properties.IsItalic, dc);
metrics = font.GetMetrics(dc);
}
public RenderArgs(RenderMode mode, Graphics graphics, MindMap chart, Font font)
: this()
{
Mode = mode;
Graphics = new GdiGraphics(graphics);
Chart = chart;
Font = new GdiFont(font);
}
public GdiFont SelectFont(GdiFont gdiFont)
{
if (gdiFont == null)
{
throw (new ArgumentNullException("gdiFont"));
}
this.SelectObject(gdiFont);
return(gdiFont);
}
public RenderArgs(RenderMode mode, Graphics graphics, MindMapView view, Font font)
: this()
{
Mode = mode;
Graphics = new GdiGraphics(graphics);
View = view;
Font = new GdiFont(font);
if (view != null)
{
Chart = view.Map;
}
}
protected override void OnPaint(ChartGraphics g)
{
g.SelectBrush(this.Owner.BackColor);
GdiFont gdiFont = g.SelectFont(this.Owner.ScaleFont);
int fh = (int)gdiFont.Font.GetHeight();
this.Owner.Area.SelectGridPen(g);
g.SetTextColor(this.Owner.ForeColor);
for (int i = 0; i < _gridLines.Count; i++)
{
GridLine gl = _gridLines[i];
g.DrawLine(0, gl.Y, 2, gl.Y);
g.TextOut(gl.Desc, 7, gl.Y - fh / 2);
}
}
public GdiFont SelectFont(Font font)
{
if (font == null)
{
throw (new ArgumentNullException("font"));
}
GdiFont.FontKey key = new GdiFont.FontKey(font);
GdiFont gdiFont = null;
_fontTable.TryGetValue(key, out gdiFont);
if (gdiFont == null)
{
gdiFont = new GdiFont(font);
_fontTable.Add(gdiFont.Key, gdiFont);
}
this.SelectObject(gdiFont);
return(gdiFont);
}
mitemFilePrint_Click(object sender, EventArgs e)
{
IntPtr hdcPrinter = IntPtr.Zero;
IntPtr hfont = IntPtr.Zero;
IntPtr hfontOld = IntPtr.Zero;
try
{
// Connect to printer by creating a DC.
hdcPrinter = mPrint.mPrintRenderWrapper.CreatePrinterContext();
if (hdcPrinter != IntPtr.Zero)
{
// Select font.
hfont = GdiFont.Create(tboxInput.Font.Name,
(int)tboxInput.Font.Size, 0, hdcPrinter);
hfontOld = GdiGraphics.SelectObject(hdcPrinter, hfont);
// Print
PrintJob_Gdi.PrintText(tboxInput, hdcPrinter);
}
else
{
throw new System.Exception();
}
}
catch
{
MessageBox.Show("Error connecting to printer.",
"PrintHPMobile");
}
finally
{
// Cleanup
GdiGraphics.SelectObject(hdcPrinter, hfontOld);
GdiGraphics.DeleteObject(hfont);
mPrint.mPrintRenderWrapper.DeletePrinterContext(hdcPrinter);
}
}
protected override void OnPaint(ChartGraphics g)
{
g.SelectBrush(this.Owner.BackColor);
GdiFont gdiFont = g.SelectFont(this.Owner.ScaleFont);
this.Owner.Area.SelectGridPen(g);
g.SetTextColor(this.Owner.ForeColor);
for (int i = 0; i < _gridLines.Count; i++)
{
GridLine gl = _gridLines[i];
g.DrawLine(gl.X, 0, gl.X, 2);
g.TextOut(gl.Desc, gl.X, 3);
}
//for (int i = 0; i < _viewCountBar; i++) {
// int x = i * this.DeltaX;
// int barindex = i + this.Position;
// if (Multiple(x, 32)) {
// //if (this.HorizontalScaleVisible && this.ChartManager.Bars != null && barindex < barcount) {
// // string sc = "";
// // DateTime dtm = this.ChartManager.Bars[barindex].Time;
// // if (l) {
// // sc = dtm.ToString("d MMM yyyy");
// // l = false;
// // } else
// // sc = dtm.ToString("d MMM ") + dtm.ToShortTimeString();
// // ghscale.DrawLine(_borderPen, _map[i], 0, _map[i], 2);
// // ghscale.DrawString(sc, Manager.Style.ScaleFont, _scaleForeBrush, _map[i], 2);
// //}
// }
//}
}
//--------------------------------------------------------
public static void PrintText(TextBox textIn, IntPtr hdc)
{
// Split input data into separate lines of text.
char [] achNewLine = new char[] { '\n' };
String [] astrSplit;
astrSplit = textIn.Text.Split(achNewLine);
// Calculate longest string in the document
int cchMax = 0;
int cstr = astrSplit.Length;
for (int i = 0; i < cstr; i++)
{
if (astrSplit[i].Length > cchMax)
{
cchMax = astrSplit[i].Length;
}
}
// Allocate conversion buffers.
byte[] byteData = new Byte[cchMax];
char[] chData = new Char[cchMax];
System.Text.Encoder d;
d = System.Text.Encoding.UTF8.GetEncoder();
// Get device resolution
int cxyInch =
GdiGraphics.GetDeviceCaps(hdc, CAPS.LOGPIXELSY);
// In draft mode, the PCL driver returns wrong value.
if (cxyInch == 0)
{
cxyInch = 150;
}
// Calculate page size.
int cxPhysPage =
GdiGraphics.GetDeviceCaps(hdc, CAPS.PHYSICALWIDTH);
int cyPhysPage =
GdiGraphics.GetDeviceCaps(hdc, CAPS.PHYSICALHEIGHT);
int cxOff =
GdiGraphics.GetDeviceCaps(hdc, CAPS.PHYSICALOFFSETX);
int cyOff =
GdiGraphics.GetDeviceCaps(hdc, CAPS.PHYSICALOFFSETY);
// Calculate line height.
TEXTMETRIC tm = new TEXTMETRIC();
GdiFont.GetTextMetrics(hdc, ref tm);
int cyLineHeight = tm.tmHeight + tm.tmExternalLeading;
// Init text drawing coordinates;
int xText = cxyInch - cxOff;
int yText = cxyInch - cyOff;
// Calculate page boundaries
int yFirst = yText;
int yLast = cyPhysPage - cxyInch;
// Notify GDI of document and page start.
DOCINFO di = new DOCINFO();
di.cbSize = Marshal.SizeOf(di);
Printing.StartDoc(hdc, ref di);
Printing.StartPage(hdc);
try
{
// Set iEnd -- trim extra carriage-return from text
int iEnd = 0;
int cchString = astrSplit[0].Length;
char ch = astrSplit[0][cchString - 1];
if (ch == '\r')
{
iEnd = -1;
}
// Loop through list of strings.
for (int i = 0; i < cstr; i++)
{
cchString = astrSplit[i].Length;
if (cchString > 0)
{
// Draw line of text.
GdiGraphics.ExtTextOut(hdc, xText, yText, 0,
IntPtr.Zero, astrSplit[i], cchString + iEnd,
IntPtr.Zero);
}
// Advance to next line.
yText += cyLineHeight;
// Skip to next page (if not at document end)
if (yText >= yLast && (i + 1) < cstr)
{
Printing.EndPage(hdc);
Printing.StartPage(hdc);
yText = yFirst;
}
}
}
finally
{
// End of page & end of document.
Printing.EndPage(hdc);
Printing.EndDoc(hdc);
}
} // PrintText()