EnglishРусский  

   ..

   addustr.g

   app.g

   btn.g

   btnpic.g

   comp.g

   ctrl.g

   ctrlci.g

   dialogs.g

   dlgbtns.g

   edit.g

   events.g

   fonts.g

   form.g

   gray.g

   grey.g

   header.g

   images.g

   label.g

   labeled.g

   locustr.g

   menu.g

   panel.g

   picture.g

   styles.g

   tab.g

   tabitem.g

   tabpage.g

   timer.g

   toolbar.g

   tray.g

   url.g

   vis.g

   viswin.g

The project is closed! You can look at a new scripting language. It is available on GitHub.
Also, try our open source cross-platform automation software.

Ads

Installer and installation software
Commercial and Freeware installers.

source\lib\vis\gray.g
  1 /*const
  2   LogPaletteSize = sizeof(TLogPalette) + sizeof(TPaletteEntry) * 255
  3 function BitmapColorsToGray( hBitMap : Cardinal Width, Height : integer ) : Cardinal stdcall
  4 var
  5   hOld : Cardinal
  6   DC : HDC
  7 {
  8   DC = CreateCompatibleDC(0)
  9   hOld = Selectobject( DC, hBitMap )
 10   FiddleBitmap( DC, hBitMap, Width, Height )
 11   SelectObject( DC, hOld )
 12   Result = hBitMap
 13 }*/
 14 
 15 func uint PaletteFromDIB( BITMAPINFO BitmapInfo )
 16 {
 17    lp    lp
 18    int   i
 19    ubyte tmp
 20 
 21    lp.palVersion = 0x300
 22    lp.palNumEntries = 256   
 23    mcopy( lp.palPalEntry, BitmapInfo.bmiColors, 4 * 256 )
 24    for i, 256
 25    {
 26       p as ( &lp.palPalEntry + i * 4 )->PALENTRY
 27       tmp = p.peBlue
 28       p.peBlue = p.peRed
 29       p.peRed = tmp
 30       p.peFlags = $PC_NOCOLLAPSE      
 31    }
 32    return CreatePalette(lp)
 33 }
 34 
 35 funct int BytesPerScanline( int PixelsPerScanline, BitsPerPixel, Alignment )
 36 {
 37   Alignment--
 38   Result = ((PixelsPerScanline * BitsPerPixel) + Alignment) & ~Alignment
 39   Result = Result >> 4
 40 }
 41 
 42 func InitializeBitmapInfoHeader( uint Bitmap, BITMAPINFOHEADER BI, int Colors )
 43 {
 44    DIBSECTION DS
 45    int        Bytes
 46    
 47    DS.dsbmih.biSize = 0
 48    Bytes = GetObject(Bitmap, sizeof(DS), &DS )
 49    if !Bytes  
 50    {
 51       InvalidBitmap
 52    }
 53    elif (Bytes >= (sizeof(DS.dsbm) + sizeof(DS.dsbmih))) &&
 54       (DS.dsbmih.biSize >= DWORD(sizeof(DS.dsbmih))) 
 55    {
 56       BI = DS.dsbmih
 57    }
 58    else
 59    {
 60       FillChar(BI, sizeof(BI), 0)
 61       with BI, DS.dsbm do
 62       {
 63       biSize = sizeof(BI)
 64       biWidth = bmWidth
 65       biHeight = bmHeight
 66       }
 67    }
 68    if colors == 2 
 69    {
 70       BI.biBitCount = 1
 71    }
 72    elif colors >= 3 and colors <= 16
 73    {
 74          BI.biBitCount = 4
 75          BI.biClrUsed = Colors
 76    }
 77    elif colors >= 17 and colors <= 256
 78    {      
 79          BI.biBitCount = 8
 80          BI.biClrUsed = Colors
 81    }      
 82    else
 83    {
 84       BI.biBitCount = DS.dsbm.bmBitsPixel * DS.dsbm.bmPlanes
 85    }   
 86    BI.biPlanes = 1
 87    if BI.biClrImportant > BI.biClrUsed 
 88    {
 89       BI.biClrImportant = BI.biClrUsed
 90    }
 91    if !BI.biSizeImage 
 92    { 
 93       BI.biSizeImage = BytesPerScanLine(BI.biWidth, BI.biBitCount, 32) * Abs(BI.biHeight)
 94    }
 95 }
 96 
 97 func GetDIBSizes( uint Bitmap, uint pInfoHeaderSize, ImageSize, int Colors )
 98 {
 99    BITMAPINFOHEADER BI
100    InitializeBitmapInfoHeader(Bitmap, BI, Colors)
101    if BI.biBitCount > 8 
102    {
103       InfoHeaderSize->uint = sizeof(BITMAPINFOHEADER)
104       if BI.biCompression & $BI_BITFIELDS : InfoHeaderSize->uint += 12
105    }
106    elif !BI.biClrUsed
107    {
108       InfoHeaderSize->uint = sizeof(BITMAPINFOHEADER) + 4 * ( BI.biBitCount << 1 )
109    }
110    else
111    {
112       InfoHeaderSize = sizeof(BITMAPINFOHEADER) + 4 * BI.biClrUsed
113    }
114    ImageSize = BI.biSizeImage
115 }
116 
117 func FiddleBitmap(uint HDC, uint Bitmap, int Width, Height)
118 {
119    uint BitmapInfoSize = sizeof(BITMAPINFO) + 4 * 255
120    
121    BITMAPINFO BitmapInfo
122    POINTER Pixels
123    uint InfoSize
124    uint ADC
125    uint OldPalette, Palette
126    int index
127    ubyte Red, Green, Blue, Gray
128 
129 //GetMem(BitmapInfo, BitmapInfoSize)
130 //меняем таблицу цветов - ПРИМЕЧАНИЕ: она использует 256 цветов DIB  
131 //  FillChar( &BitmapInfo^, BitmapInfoSize, 0)
132   with BitmapInfo.bmiHeader 
133   {
134     .biSize = sizeof(BITMAPINFOHEADER)
135     .biWidth = Width
136     .biHeight = Height
137     .biPlanes = 1
138     .biBitCount = 8
139     .biCompression = $BI_RGB
140     .biClrUsed = 256
141     .biClrImportant = 256
142     //GetDIBSizes(Bitmap, InfoSize, .biSizeImage )
143     /*BITMAPINFOHEADER BI 
144      InitializeBitmapInfoHeader(Bitmap, BI, 0 )
145   if BI.biBitCount > 8 
146   {
147     InfoHeaderSize = sizeof(TBitmapInfoHeader)
148     if (BI.biCompression and BI_BITFIELDS) <> 0 
149       Inc(InfoHeaderSize, 12)
150   }
151   else
152     if BI.biClrUsed = 0 
153       InfoHeaderSize = sizeof(TBitmapInfoHeader) +
154         sizeof(TRGBQuad) * (1 shl BI.biBitCount)
155     else
156       InfoHeaderSize = sizeof(TBitmapInfoHeader) +
157         sizeof(TRGBQuad) * BI.biClrUsed
158   ImageSize = BI.biSizeImage
159     */
160     
161 
162     //распределяем место для пикселей 
163     Pixels = GlobalAlloc( $GMEM_MOVEABLE, biSizeImage )
164     
165       // получаем пиксели DIB 
166    ADC = GetDC(0)
167    OldPalette = SelectPalette(ADC, 0, 0)
168    RealizePalette(ADC)
169    GetDIBits(ADC, Bitmap, 0, biHeight, Pixels, BitmapInfo^,
170          DIB_RGB_COLORS)
171    SelectPalette(ADC, OldPalette, true)
172    
173    ReleaseDC(0, ADC)
174     
175       
176       //теперь изменяем таблицу цветов      
177 /*      for index = 0 to 255 do
178         {
179           Red  = BitmapInfo^.bmiColors[ index ].rgbRed
180           Green = BitmapInfo^.bmiColors[ index ].rgbGreen
181           Blue  = BitmapInfo^.bmiColors[ index ].rgbBlue
182 
183           Gray = RgbToGray( RGB( red, Green, Blue ) )
184 
185           BitmapInfo^.bmiColors[ index ].rgbRed = Gray
186           BitmapInfo^.bmiColors[ index ].rgbGreen = Gray
187           BitmapInfo^.bmiColors[ index ].rgbBlue = Gray
188         }
189 */
190       //создаем палитру на основе новой таблицы цветов
191    Palette = PaletteFromDIB(BitmapInfo)
192    OldPalette = SelectPalette(DC, Palette, 0)
193    RealizePalette(DC)
194    StretchDIBits(DC, 0, 0, biWidth, biHeight, 0, 0,
195          biWidth, biHeight,
196          Pixels, BitmapInfo^, $DIB_RGB_COLORS, $SRCCOPY)
197    
198    SelectPalette(DC, OldPalette, true)      
199    
200    GlobalFree(Pixels)
201   
202 }