reactos/base/applications/paint/drawing.c

   1 /*
   2  * PROJECT:     PAINT for ReactOS
   3  * LICENSE:     LGPL
   4  * FILE:        drawing.c
   5  * PURPOSE:     The drawing functions used by the tools
   6  * PROGRAMMERS: Benedikt Freisen
   7  */
   8
   9 /* INCLUDES *********************************************************/
  10
  11 #include <windows.h>
  12
  13 /* FUNCTIONS ********************************************************/
  14
  15 void Line(HDC hdc, short x1, short y1, short x2, short y2, int color, int thickness)
  16 {
  17     HPEN oldPen = SelectObject(hdc, CreatePen(PS_SOLID, thickness, color));
  18     MoveToEx(hdc, x1, y1, NULL);
  19     LineTo(hdc, x2, y2);
  20     DeleteObject(SelectObject(hdc, oldPen));
  21 }
  22
  23 void Rect(HDC hdc, short x1, short y1, short x2, short y2, int fg, int bg, int thickness, BOOL filled)
  24 {
  25     HPEN oldPen = SelectObject(hdc, CreatePen(PS_SOLID, thickness, fg));
  26     LOGBRUSH logbrush;
  27     if (filled) logbrush.lbStyle = BS_SOLID; else logbrush.lbStyle = BS_HOLLOW;
  28     logbrush.lbColor = bg;
  29     logbrush.lbHatch = 0;
  30     HBRUSH oldBrush = SelectObject(hdc, CreateBrushIndirect(&logbrush));
  31     Rectangle(hdc, x1, y1, x2, y2);
  32     DeleteObject(SelectObject(hdc, oldBrush));
  33     DeleteObject(SelectObject(hdc, oldPen));
  34 }
  35
  36 void Ellp(HDC hdc, short x1, short y1, short x2, short y2, int fg, int bg, int thickness, BOOL filled)
  37 {
  38     HPEN oldPen = SelectObject(hdc, CreatePen(PS_SOLID, thickness, fg));
  39     LOGBRUSH logbrush;
  40     if (filled) logbrush.lbStyle = BS_SOLID; else logbrush.lbStyle = BS_HOLLOW;
  41     logbrush.lbColor = bg;
  42     logbrush.lbHatch = 0;
  43     HBRUSH oldBrush = SelectObject(hdc, CreateBrushIndirect(&logbrush));
  44     Ellipse(hdc, x1, y1, x2, y2);
  45     DeleteObject(SelectObject(hdc, oldBrush));
  46     DeleteObject(SelectObject(hdc, oldPen));
  47 }
  48
  49 void RRect(HDC hdc, short x1, short y1, short x2, short y2, int fg, int bg, int thickness, BOOL filled)
  50 {
  51     HPEN oldPen = SelectObject(hdc, CreatePen(PS_SOLID, thickness, fg));
  52     LOGBRUSH logbrush;
  53     if (filled) logbrush.lbStyle = BS_SOLID; else logbrush.lbStyle = BS_HOLLOW;
  54     logbrush.lbColor = bg;
  55     logbrush.lbHatch = 0;
  56     HBRUSH oldBrush = SelectObject(hdc, CreateBrushIndirect(&logbrush));
  57     RoundRect(hdc, x1, y1, x2, y2, 16, 16);
  58     DeleteObject(SelectObject(hdc, oldBrush));
  59     DeleteObject(SelectObject(hdc, oldPen));
  60 }
  61
  62 void Fill(HDC hdc, int x, int y, int color)
  63 {
  64     HBRUSH oldBrush = SelectObject(hdc, CreateSolidBrush(color));
  65     ExtFloodFill(hdc, x, y, GetPixel(hdc, x, y), FLOODFILLSURFACE);
  66     DeleteObject(SelectObject(hdc, oldBrush));
  67 }
  68
  69 void Erase(HDC hdc, short x1, short y1, short x2, short y2, int color, int radius)
  70 {
  71     HPEN oldPen = SelectObject(hdc, CreatePen(PS_SOLID, 1, color));
  72     HBRUSH oldBrush = SelectObject(hdc, CreateSolidBrush(color));
  73     short a;
  74     for (a=0; a<=100; a++)
  75         Rectangle(hdc, (x1*(100-a)+x2*a)/100-radius+1, (y1*(100-a)+y2*a)/100-radius+1, (x1*(100-a)+x2*a)/100+radius+1, (y1*(100-a)+y2*a)/100+radius+1);
  76     DeleteObject(SelectObject(hdc, oldBrush));
  77     DeleteObject(SelectObject(hdc, oldPen));
  78 }
  79
  80 void Airbrush(HDC hdc, short x, short y, int color, int r)
  81 {
  82     short a;
  83     short b;
  84     for (b=-r; b<=r; b++) for (a=-r; a<=r; a++) if ((a*a+b*b<=r*r)&&(rand()%4==0)) SetPixel(hdc, x+a, y+b, color);
  85 }
  86
  87 void Brush(HDC hdc, short x1, short y1, short x2, short y2, int color, int style)
  88 {
  89     HPEN oldPen = SelectObject(hdc, CreatePen(PS_SOLID, 1, color));
  90     HBRUSH oldBrush = SelectObject(hdc, CreateSolidBrush(color));
  91     short a;
  92     switch (style)
  93     {
  94         case 0:
  95             for (a=0; a<=100; a++)
  96                 Ellipse(hdc, (x1*(100-a)+x2*a)/100-3, (y1*(100-a)+y2*a)/100-3, (x1*(100-a)+x2*a)/100+4, (y1*(100-a)+y2*a)/100+4);
  97             break;
  98         case 1:
  99             for (a=0; a<=100; a++)
 100                 Ellipse(hdc, (x1*(100-a)+x2*a)/100-1, (y1*(100-a)+y2*a)/100-1, (x1*(100-a)+x2*a)/100+3, (y1*(100-a)+y2*a)/100+3);
 101             break;
 102         case 2:
 103             MoveToEx(hdc, x1, y1, NULL);
 104             LineTo(hdc, x2, y2);
 105             SetPixel(hdc, x2, y2, color);
 106             break;
 107         case 3:
 108             for (a=0; a<=100; a++)
 109                 Rectangle(hdc, (x1*(100-a)+x2*a)/100-3, (y1*(100-a)+y2*a)/100-3, (x1*(100-a)+x2*a)/100+5, (y1*(100-a)+y2*a)/100+5);
 110             break;
 111         case 4:
 112             for (a=0; a<=100; a++)
 113                 Rectangle(hdc, (x1*(100-a)+x2*a)/100-2, (y1*(100-a)+y2*a)/100-2, (x1*(100-a)+x2*a)/100+3, (y1*(100-a)+y2*a)/100+3);
 114             break;
 115         case 5:
 116             for (a=0; a<=100; a++)
 117                 Rectangle(hdc, (x1*(100-a)+x2*a)/100-1, (y1*(100-a)+y2*a)/100-1, (x1*(100-a)+x2*a)/100+1, (y1*(100-a)+y2*a)/100+1);
 118             break;
 119         case 6:
 120             for (a=0; a<=100; a++)
 121             {
 122                 MoveToEx(hdc, (x1*(100-a)+x2*a)/100-3, (y1*(100-a)+y2*a)/100+5, NULL);
 123                 LineTo(hdc, (x1*(100-a)+x2*a)/100+5, (y1*(100-a)+y2*a)/100-3);
 124             }
 125             break;
 126         case 7:
 127             for (a=0; a<=100; a++)
 128             {
 129                 MoveToEx(hdc, (x1*(100-a)+x2*a)/100-2, (y1*(100-a)+y2*a)/100+3, NULL);
 130                 LineTo(hdc, (x1*(100-a)+x2*a)/100+3, (y1*(100-a)+y2*a)/100-2);
 131             }
 132             break;
 133         case 8:
 134             for (a=0; a<=100; a++)
 135             {
 136                 MoveToEx(hdc, (x1*(100-a)+x2*a)/100-1, (y1*(100-a)+y2*a)/100+1, NULL);
 137                 LineTo(hdc, (x1*(100-a)+x2*a)/100+1, (y1*(100-a)+y2*a)/100-1);
 138             }
 139             break;
 140         case 9:
 141             for (a=0; a<=100; a++)
 142             {
 143                 MoveToEx(hdc, (x1*(100-a)+x2*a)/100-3, (y1*(100-a)+y2*a)/100-3, NULL);
 144                 LineTo(hdc, (x1*(100-a)+x2*a)/100+5, (y1*(100-a)+y2*a)/100+5);
 145             }
 146             break;
 147         case 10:
 148             for (a=0; a<=100; a++)
 149             {
 150                 MoveToEx(hdc, (x1*(100-a)+x2*a)/100-2, (y1*(100-a)+y2*a)/100-2, NULL);
 151                 LineTo(hdc, (x1*(100-a)+x2*a)/100+3, (y1*(100-a)+y2*a)/100+3);
 152             }
 153             break;
 154         case 11:
 155             for (a=0; a<=100; a++)
 156             {
 157                 MoveToEx(hdc, (x1*(100-a)+x2*a)/100-1, (y1*(100-a)+y2*a)/100-1, NULL);
 158                 LineTo(hdc, (x1*(100-a)+x2*a)/100+1, (y1*(100-a)+y2*a)/100+1);
 159             }
 160             break;
 161     }
 162     DeleteObject(SelectObject(hdc, oldBrush));
 163     DeleteObject(SelectObject(hdc, oldPen));
 164 }
 165
 166 void RectSel(HDC hdc, short x1, short y1, short x2, short y2)
 167 {
 168     HPEN oldPen = SelectObject(hdc, CreatePen(PS_DOT, 1, 0x00000000));
 169     LOGBRUSH logbrush;
 170     logbrush.lbStyle = BS_HOLLOW;
 171     logbrush.lbColor = 0;
 172     logbrush.lbHatch = 0;
 173     HBRUSH oldBrush = SelectObject(hdc, CreateBrushIndirect(&logbrush));
 174     Rectangle(hdc, x1, y1, x2, y2);
 175     DeleteObject(SelectObject(hdc, oldBrush));
 176     DeleteObject(SelectObject(hdc, oldPen));
 177 }
 178
 179 void SelectionFrame(HDC hdc, int x1, int y1, int x2, int y2)
 180 {
 181     HPEN oldPen = SelectObject(hdc, CreatePen(PS_DOT, 1, 0x00000000));
 182     LOGBRUSH logbrush;
 183     logbrush.lbStyle = BS_HOLLOW;
 184     logbrush.lbColor = 0;
 185     logbrush.lbHatch = 0;
 186     HBRUSH oldBrush = SelectObject(hdc, CreateBrushIndirect(&logbrush));
 187     Rectangle(hdc, x1, y1, x2, y2);
 188     DeleteObject(SelectObject(hdc, oldBrush));
 189     DeleteObject(SelectObject(hdc, oldPen));
 190     oldPen = SelectObject(hdc, CreatePen(PS_SOLID, 1, 0x00000000));
 191     oldBrush = SelectObject(hdc, CreateSolidBrush(0x00000000));
 192     Rectangle(hdc, x1-1, y1-1, x1+2, y1+2);
 193     Rectangle(hdc, x2-2, y1-1, x2+2, y1+2);
 194     Rectangle(hdc, x1-1, y2-2, x1+2, y2+1);
 195     Rectangle(hdc, x2-2, y2-2, x2+2, y2+1);
 196     Rectangle(hdc, (x1+x2)/2-1, y1-1, (x1+x2)/2+2, y1+2);
 197     Rectangle(hdc, (x1+x2)/2-1, y2-2, (x1+x2)/2+2, y2+1);
 198     Rectangle(hdc, x1-1, (y1+y2)/2-1, x1+2, (y1+y2)/2+2);
 199     Rectangle(hdc, x2-2, (y1+y2)/2-1, x2+1, (y1+y2)/2+2);
 200     DeleteObject(SelectObject(hdc, oldBrush));
 201     DeleteObject(SelectObject(hdc, oldPen));
 202 }