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, int style)
  24 {
  25     HBRUSH oldBrush;
  26     LOGBRUSH logbrush;
  27     HPEN oldPen = SelectObject(hdc, CreatePen(PS_SOLID, thickness, fg));
  28     if (style==0) logbrush.lbStyle = BS_HOLLOW; else logbrush.lbStyle = BS_SOLID;
  29     if (style==2) logbrush.lbColor = fg; else logbrush.lbColor = bg;
  30     logbrush.lbHatch = 0;
  31     oldBrush = SelectObject(hdc, CreateBrushIndirect(&logbrush));
  32     Rectangle(hdc, x1, y1, x2, y2);
  33     DeleteObject(SelectObject(hdc, oldBrush));
  34     DeleteObject(SelectObject(hdc, oldPen));
  35 }
  36
  37 void Ellp(HDC hdc, short x1, short y1, short x2, short y2, int fg, int bg, int thickness, int style)
  38 {
  39     HBRUSH oldBrush;
  40     LOGBRUSH logbrush;
  41     HPEN oldPen = SelectObject(hdc, CreatePen(PS_SOLID, thickness, fg));
  42     if (style==0) logbrush.lbStyle = BS_HOLLOW; else logbrush.lbStyle = BS_SOLID;
  43     if (style==2) logbrush.lbColor = fg; else logbrush.lbColor = bg;
  44     logbrush.lbHatch = 0;
  45     oldBrush = SelectObject(hdc, CreateBrushIndirect(&logbrush));
  46     Ellipse(hdc, x1, y1, x2, y2);
  47     DeleteObject(SelectObject(hdc, oldBrush));
  48     DeleteObject(SelectObject(hdc, oldPen));
  49 }
  50
  51 void RRect(HDC hdc, short x1, short y1, short x2, short y2, int fg, int bg, int thickness, int style)
  52 {
  53     LOGBRUSH logbrush;
  54     HBRUSH oldBrush;
  55     HPEN oldPen = SelectObject(hdc, CreatePen(PS_SOLID, thickness, fg));
  56     if (style==0) logbrush.lbStyle = BS_HOLLOW; else logbrush.lbStyle = BS_SOLID;
  57     if (style==2) logbrush.lbColor = fg; else logbrush.lbColor = bg;
  58     logbrush.lbHatch = 0;
  59     oldBrush = SelectObject(hdc, CreateBrushIndirect(&logbrush));
  60     RoundRect(hdc, x1, y1, x2, y2, 16, 16);
  61     DeleteObject(SelectObject(hdc, oldBrush));
  62     DeleteObject(SelectObject(hdc, oldPen));
  63 }
  64
  65 void Poly(HDC hdc, POINT *lpPoints, int nCount, int fg, int bg, int thickness, int style, BOOL closed)
  66 {
  67     LOGBRUSH logbrush;
  68     HBRUSH oldBrush;
  69     HPEN oldPen = SelectObject(hdc, CreatePen(PS_SOLID, thickness, fg));
  70     if (style==0) logbrush.lbStyle = BS_HOLLOW; else logbrush.lbStyle = BS_SOLID;
  71     if (style==2) logbrush.lbColor = fg; else logbrush.lbColor = bg;
  72     logbrush.lbHatch = 0;
  73     oldBrush = SelectObject(hdc, CreateBrushIndirect(&logbrush));
  74     if (closed)
  75         Polygon(hdc, lpPoints, nCount);
  76     else
  77         Polyline(hdc, lpPoints, nCount);
  78     DeleteObject(SelectObject(hdc, oldBrush));
  79     DeleteObject(SelectObject(hdc, oldPen));
  80 }
  81
  82 void Bezier(HDC hdc, POINT p1, POINT p2, POINT p3, POINT p4, int color, int thickness)
  83 {
  84     HPEN oldPen;
  85     POINT fourPoints[4];
  86     fourPoints[0] = p1;
  87     fourPoints[1] = p2;
  88     fourPoints[2] = p3;
  89     fourPoints[3] = p4;
  90     oldPen = SelectObject(hdc, CreatePen(PS_SOLID, thickness, color));
  91     PolyBezier(hdc, fourPoints, 4);
  92     DeleteObject(SelectObject(hdc, oldPen));
  93 }
  94
  95 void Fill(HDC hdc, int x, int y, int color)
  96 {
  97     HBRUSH oldBrush = SelectObject(hdc, CreateSolidBrush(color));
  98     ExtFloodFill(hdc, x, y, GetPixel(hdc, x, y), FLOODFILLSURFACE);
  99     DeleteObject(SelectObject(hdc, oldBrush));
 100 }
 101
 102 void Erase(HDC hdc, short x1, short y1, short x2, short y2, int color, int radius)
 103 {
 104     short a;
 105     HPEN oldPen;
 106     HBRUSH oldBrush = SelectObject(hdc, CreateSolidBrush(color));
 107     oldPen = SelectObject(hdc, CreatePen(PS_SOLID, 1, color));
 108     for (a=0; a<=100; a++)
 109         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);
 110     DeleteObject(SelectObject(hdc, oldBrush));
 111     DeleteObject(SelectObject(hdc, oldPen));
 112 }
 113
 114 void Replace(HDC hdc, short x1, short y1, short x2, short y2, int fg, int bg, int radius)
 115 {
 116     short a, x, y;
 117     for (a=0; a<=100; a++)
 118         for (y=(y1*(100-a)+y2*a)/100-radius+1; y<(y1*(100-a)+y2*a)/100+radius+1; y++)
 119             for (x=(x1*(100-a)+x2*a)/100-radius+1; x<(x1*(100-a)+x2*a)/100+radius+1; x++)
 120                 if (GetPixel(hdc, x, y)==fg) SetPixel(hdc, x, y, bg);
 121 }
 122
 123 void Airbrush(HDC hdc, short x, short y, int color, int r)
 124 {
 125     short a;
 126     short b;
 127     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);
 128 }
 129
 130 void Brush(HDC hdc, short x1, short y1, short x2, short y2, int color, int style)
 131 {
 132     HPEN oldPen = SelectObject(hdc, CreatePen(PS_SOLID, 1, color));
 133     HBRUSH oldBrush = SelectObject(hdc, CreateSolidBrush(color));
 134     short a;
 135     switch (style)
 136     {
 137         case 0:
 138             for (a=0; a<=100; a++)
 139                 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);
 140             break;
 141         case 1:
 142             for (a=0; a<=100; a++)
 143                 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);
 144             break;
 145         case 2:
 146             MoveToEx(hdc, x1, y1, NULL);
 147             LineTo(hdc, x2, y2);
 148             SetPixel(hdc, x2, y2, color);
 149             break;
 150         case 3:
 151             for (a=0; a<=100; a++)
 152                 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);
 153             break;
 154         case 4:
 155             for (a=0; a<=100; a++)
 156                 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);
 157             break;
 158         case 5:
 159             for (a=0; a<=100; a++)
 160                 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);
 161             break;
 162         case 6:
 163             for (a=0; a<=100; a++)
 164             {
 165                 MoveToEx(hdc, (x1*(100-a)+x2*a)/100-3, (y1*(100-a)+y2*a)/100+5, NULL);
 166                 LineTo(hdc, (x1*(100-a)+x2*a)/100+5, (y1*(100-a)+y2*a)/100-3);
 167             }
 168             break;
 169         case 7:
 170             for (a=0; a<=100; a++)
 171             {
 172                 MoveToEx(hdc, (x1*(100-a)+x2*a)/100-2, (y1*(100-a)+y2*a)/100+3, NULL);
 173                 LineTo(hdc, (x1*(100-a)+x2*a)/100+3, (y1*(100-a)+y2*a)/100-2);
 174             }
 175             break;
 176         case 8:
 177             for (a=0; a<=100; a++)
 178             {
 179                 MoveToEx(hdc, (x1*(100-a)+x2*a)/100-1, (y1*(100-a)+y2*a)/100+1, NULL);
 180                 LineTo(hdc, (x1*(100-a)+x2*a)/100+1, (y1*(100-a)+y2*a)/100-1);
 181             }
 182             break;
 183         case 9:
 184             for (a=0; a<=100; a++)
 185             {
 186                 MoveToEx(hdc, (x1*(100-a)+x2*a)/100-3, (y1*(100-a)+y2*a)/100-3, NULL);
 187                 LineTo(hdc, (x1*(100-a)+x2*a)/100+5, (y1*(100-a)+y2*a)/100+5);
 188             }
 189             break;
 190         case 10:
 191             for (a=0; a<=100; a++)
 192             {
 193                 MoveToEx(hdc, (x1*(100-a)+x2*a)/100-2, (y1*(100-a)+y2*a)/100-2, NULL);
 194                 LineTo(hdc, (x1*(100-a)+x2*a)/100+3, (y1*(100-a)+y2*a)/100+3);
 195             }
 196             break;
 197         case 11:
 198             for (a=0; a<=100; a++)
 199             {
 200                 MoveToEx(hdc, (x1*(100-a)+x2*a)/100-1, (y1*(100-a)+y2*a)/100-1, NULL);
 201                 LineTo(hdc, (x1*(100-a)+x2*a)/100+1, (y1*(100-a)+y2*a)/100+1);
 202             }
 203             break;
 204     }
 205     DeleteObject(SelectObject(hdc, oldBrush));
 206     DeleteObject(SelectObject(hdc, oldPen));
 207 }
 208
 209 void RectSel(HDC hdc, short x1, short y1, short x2, short y2)
 210 {
 211     HBRUSH oldBrush;
 212     LOGBRUSH logbrush;
 213     HPEN oldPen = SelectObject(hdc, CreatePen(PS_DOT, 1, 0x00000000));
 214     logbrush.lbStyle = BS_HOLLOW;
 215     logbrush.lbColor = 0;
 216     logbrush.lbHatch = 0;
 217     oldBrush = SelectObject(hdc, CreateBrushIndirect(&logbrush));
 218     Rectangle(hdc, x1, y1, x2, y2);
 219     DeleteObject(SelectObject(hdc, oldBrush));
 220     DeleteObject(SelectObject(hdc, oldPen));
 221 }
 222
 223 void SelectionFrame(HDC hdc, int x1, int y1, int x2, int y2)
 224 {
 225     HBRUSH oldBrush;
 226     LOGBRUSH logbrush;
 227     HPEN oldPen = SelectObject(hdc, CreatePen(PS_DOT, 1, 0x00000000));
 228     logbrush.lbStyle = BS_HOLLOW;
 229     logbrush.lbColor = 0;
 230     logbrush.lbHatch = 0;
 231     oldBrush = SelectObject(hdc, CreateBrushIndirect(&logbrush));
 232     Rectangle(hdc, x1, y1, x2, y2);
 233     DeleteObject(SelectObject(hdc, oldBrush));
 234     DeleteObject(SelectObject(hdc, oldPen));
 235     oldPen = SelectObject(hdc, CreatePen(PS_SOLID, 1, 0x00000000));
 236     oldBrush = SelectObject(hdc, CreateSolidBrush(0x00000000));
 237     Rectangle(hdc, x1-1, y1-1, x1+2, y1+2);
 238     Rectangle(hdc, x2-2, y1-1, x2+2, y1+2);
 239     Rectangle(hdc, x1-1, y2-2, x1+2, y2+1);
 240     Rectangle(hdc, x2-2, y2-2, x2+2, y2+1);
 241     Rectangle(hdc, (x1+x2)/2-1, y1-1, (x1+x2)/2+2, y1+2);
 242     Rectangle(hdc, (x1+x2)/2-1, y2-2, (x1+x2)/2+2, y2+1);
 243     Rectangle(hdc, x1-1, (y1+y2)/2-1, x1+2, (y1+y2)/2+2);
 244     Rectangle(hdc, x2-2, (y1+y2)/2-1, x2+1, (y1+y2)/2+2);
 245     DeleteObject(SelectObject(hdc, oldBrush));
 246     DeleteObject(SelectObject(hdc, oldPen));
 247 }