reactos/base/applications/mspaint_new/drawing.cpp

   1 /*
   2  * PROJECT:     PAINT for ReactOS
   3  * LICENSE:     LGPL
   4  * FILE:        base/applications/mspaint_new/drawing.cpp
   5  * PURPOSE:     The drawing functions used by the tools
   6  * PROGRAMMERS: Benedikt Freisen
   7  */
   8
   9 /* INCLUDES *********************************************************/
  10
  11 #include "precomp.h"
  12
  13 /* FUNCTIONS ********************************************************/
  14
  15 void
  16 Line(HDC hdc, LONG x1, LONG y1, LONG x2, LONG y2, COLORREF color, int thickness)
  17 {
  18     HPEN oldPen = (HPEN) SelectObject(hdc, CreatePen(PS_SOLID, thickness, color));
  19     MoveToEx(hdc, x1, y1, NULL);
  20     LineTo(hdc, x2, y2);
  21     DeleteObject(SelectObject(hdc, oldPen));
  22 }
  23
  24 void
  25 Rect(HDC hdc, LONG x1, LONG y1, LONG x2, LONG y2, COLORREF fg,  COLORREF bg, int thickness, int style)
  26 {
  27     HBRUSH oldBrush;
  28     LOGBRUSH logbrush;
  29     HPEN oldPen = (HPEN) SelectObject(hdc, CreatePen(PS_SOLID, thickness, fg));
  30     logbrush.lbStyle = (style == 0) ? BS_HOLLOW : BS_SOLID;
  31     logbrush.lbColor = (style == 2) ? fg : bg;
  32     logbrush.lbHatch = 0;
  33     oldBrush = (HBRUSH) SelectObject(hdc, CreateBrushIndirect(&logbrush));
  34     Rectangle(hdc, x1, y1, x2, y2);
  35     DeleteObject(SelectObject(hdc, oldBrush));
  36     DeleteObject(SelectObject(hdc, oldPen));
  37 }
  38
  39 void
  40 Ellp(HDC hdc, LONG x1, LONG y1, LONG x2, LONG y2, COLORREF fg,  COLORREF bg, int thickness, int style)
  41 {
  42     HBRUSH oldBrush;
  43     LOGBRUSH logbrush;
  44     HPEN oldPen = (HPEN) SelectObject(hdc, CreatePen(PS_SOLID, thickness, fg));
  45     logbrush.lbStyle = (style == 0) ? BS_HOLLOW : BS_SOLID;
  46     logbrush.lbColor = (style == 2) ? fg : bg;
  47     logbrush.lbHatch = 0;
  48     oldBrush = (HBRUSH) SelectObject(hdc, CreateBrushIndirect(&logbrush));
  49     Ellipse(hdc, x1, y1, x2, y2);
  50     DeleteObject(SelectObject(hdc, oldBrush));
  51     DeleteObject(SelectObject(hdc, oldPen));
  52 }
  53
  54 void
  55 RRect(HDC hdc, LONG x1, LONG y1, LONG x2, LONG y2, COLORREF fg,  COLORREF bg, int thickness, int style)
  56 {
  57     LOGBRUSH logbrush;
  58     HBRUSH oldBrush;
  59     HPEN oldPen = (HPEN) SelectObject(hdc, CreatePen(PS_SOLID, thickness, fg));
  60     logbrush.lbStyle = (style == 0) ? BS_HOLLOW : BS_SOLID;
  61     logbrush.lbColor = (style == 2) ? fg : bg;
  62     logbrush.lbHatch = 0;
  63     oldBrush = (HBRUSH) SelectObject(hdc, CreateBrushIndirect(&logbrush));
  64     RoundRect(hdc, x1, y1, x2, y2, 16, 16);
  65     DeleteObject(SelectObject(hdc, oldBrush));
  66     DeleteObject(SelectObject(hdc, oldPen));
  67 }
  68
  69 void
  70 Poly(HDC hdc, POINT * lpPoints, int nCount,  COLORREF fg,  COLORREF bg, int thickness, int style, BOOL closed, BOOL inverted)
  71 {
  72     LOGBRUSH logbrush;
  73     HBRUSH oldBrush;
  74     HPEN oldPen = (HPEN) SelectObject(hdc, CreatePen(PS_SOLID, thickness, fg));
  75     UINT oldRop = GetROP2(hdc);
  76
  77     if (inverted)
  78       SetROP2(hdc, R2_NOTXORPEN);
  79
  80     logbrush.lbStyle = (style == 0) ? BS_HOLLOW : BS_SOLID;
  81     logbrush.lbColor = (style == 2) ? fg : bg;
  82     logbrush.lbHatch = 0;
  83     oldBrush = (HBRUSH) SelectObject(hdc, CreateBrushIndirect(&logbrush));
  84     if (closed)
  85         Polygon(hdc, lpPoints, nCount);
  86     else
  87         Polyline(hdc, lpPoints, nCount);
  88     DeleteObject(SelectObject(hdc, oldBrush));
  89     DeleteObject(SelectObject(hdc, oldPen));
  90
  91     SetROP2(hdc, oldRop);
  92 }
  93
  94 void
  95 Bezier(HDC hdc, POINT p1, POINT p2, POINT p3, POINT p4, COLORREF color, int thickness)
  96 {
  97     HPEN oldPen;
  98     POINT fourPoints[4];
  99     fourPoints[0] = p1;
 100     fourPoints[1] = p2;
 101     fourPoints[2] = p3;
 102     fourPoints[3] = p4;
 103     oldPen = (HPEN) SelectObject(hdc, CreatePen(PS_SOLID, thickness, color));
 104     PolyBezier(hdc, fourPoints, 4);
 105     DeleteObject(SelectObject(hdc, oldPen));
 106 }
 107
 108 void
 109 Fill(HDC hdc, LONG x, LONG y, COLORREF color)
 110 {
 111     HBRUSH oldBrush = (HBRUSH) SelectObject(hdc, CreateSolidBrush(color));
 112     ExtFloodFill(hdc, x, y, GetPixel(hdc, x, y), FLOODFILLSURFACE);
 113     DeleteObject(SelectObject(hdc, oldBrush));
 114 }
 115
 116 void
 117 Erase(HDC hdc, LONG x1, LONG y1, LONG x2, LONG y2, COLORREF color, LONG radius)
 118 {
 119     LONG a, b;
 120     HPEN oldPen;
 121     HBRUSH oldBrush = (HBRUSH) SelectObject(hdc, CreateSolidBrush(color));
 122
 123     b = max(1, max(abs(x2 - x1), abs(y2 - y1)));
 124     oldPen = (HPEN) SelectObject(hdc, CreatePen(PS_SOLID, 1, color));
 125     for(a = 0; a <= b; a++)
 126         Rectangle(hdc, (x1 * (b - a) + x2 * a) / b - radius + 1,
 127                   (y1 * (b - a) + y2 * a) / b - radius + 1, (x1 * (b - a) + x2 * a) / b + radius + 1,
 128                   (y1 * (b - a) + y2 * a) / b + radius + 1);
 129     DeleteObject(SelectObject(hdc, oldBrush));
 130     DeleteObject(SelectObject(hdc, oldPen));
 131 }
 132
 133 void
 134 Replace(HDC hdc, LONG x1, LONG y1, LONG x2, LONG y2, COLORREF fg, COLORREF bg, LONG radius)
 135 {
 136     LONG a, b, x, y;
 137     b = max(1, max(abs(x2 - x1), abs(y2 - y1)));
 138
 139     for(a = 0; a <= b; a++)
 140         for(y = (y1 * (b - a) + y2 * a) / b - radius + 1;
 141             y < (y1 * (b - a) + y2 * a) / b + radius + 1; y++)
 142             for(x = (x1 * (b - a) + x2 * a) / b - radius + 1;
 143                 x < (x1 * (b - a) + x2 * a) / b + radius + 1; x++)
 144                 if (GetPixel(hdc, x, y) == fg)
 145                     SetPixel(hdc, x, y, bg);
 146 }
 147
 148 void
 149 Airbrush(HDC hdc, LONG x, LONG y, COLORREF color, LONG r)
 150 {
 151     LONG a, b;
 152
 153     for(b = -r; b <= r; b++)
 154         for(a = -r; a <= r; a++)
 155             if ((a * a + b * b <= r * r) && (rand() % 4 == 0))
 156                 SetPixel(hdc, x + a, y + b, color);
 157 }
 158
 159 void
 160 Brush(HDC hdc, LONG x1, LONG y1, LONG x2, LONG y2, COLORREF color, LONG style)
 161 {
 162     HPEN oldPen = (HPEN) SelectObject(hdc, CreatePen(PS_SOLID, 1, color));
 163     HBRUSH oldBrush = (HBRUSH) SelectObject(hdc, CreateSolidBrush(color));
 164     LONG a, b;
 165     b = max(1, max(abs(x2 - x1), abs(y2 - y1)));
 166     switch (style)
 167     {
 168         case 0:
 169             for(a = 0; a <= b; a++)
 170                 Ellipse(hdc, (x1 * (b - a) + x2 * a) / b - 3, (y1 * (b - a) + y2 * a) / b - 3,
 171                         (x1 * (b - a) + x2 * a) / b + 4, (y1 * (b - a) + y2 * a) / b + 4);
 172             break;
 173         case 1:
 174             for(a = 0; a <= b; a++)
 175                 Ellipse(hdc, (x1 * (b - a) + x2 * a) / b - 1, (y1 * (b - a) + y2 * a) / b - 1,
 176                         (x1 * (b - a) + x2 * a) / b + 3, (y1 * (b - a) + y2 * a) / b + 3);
 177             break;
 178         case 2:
 179             MoveToEx(hdc, x1, y1, NULL);
 180             LineTo(hdc, x2, y2);
 181             SetPixel(hdc, x2, y2, color);
 182             break;
 183         case 3:
 184             for(a = 0; a <= b; a++)
 185                 Rectangle(hdc, (x1 * (b - a) + x2 * a) / b - 3, (y1 * (b - a) + y2 * a) / b - 3,
 186                           (x1 * (b - a) + x2 * a) / b + 5, (y1 * (b - a) + y2 * a) / b + 5);
 187             break;
 188         case 4:
 189             for(a = 0; a <= b; a++)
 190                 Rectangle(hdc, (x1 * (b - a) + x2 * a) / b - 2, (y1 * (b - a) + y2 * a) / b - 2,
 191                           (x1 * (b - a) + x2 * a) / b + 3, (y1 * (b - a) + y2 * a) / b + 3);
 192             break;
 193         case 5:
 194             for(a = 0; a <= b; a++)
 195                 Rectangle(hdc, (x1 * (b - a) + x2 * a) / b - 1, (y1 * (b - a) + y2 * a) / b - 1,
 196                           (x1 * (b - a) + x2 * a) / b + 1, (y1 * (b - a) + y2 * a) / b + 1);
 197             break;
 198         case 6:
 199         case 7:
 200         case 8:
 201         case 9:
 202         case 10:
 203         case 11:
 204         {
 205             POINT offsTop[] = {{4, -3}, {2, -2}, {0, 0},
 206                                {-3, -3}, {-2, -2}, {-1, 0}};
 207             POINT offsBtm[] = {{-3, 4}, {-2, 2}, {-1, 1},
 208                                {4, 4}, {2, 2}, {0, 1}};
 209             LONG idx = style - 6;
 210             POINT pts[4];
 211             pts[0].x = x1 + offsTop[idx].x;
 212             pts[0].y = y1 + offsTop[idx].y;
 213             pts[1].x = x1 + offsBtm[idx].x;
 214             pts[1].y = y1 + offsBtm[idx].y;
 215             pts[2].x = x2 + offsBtm[idx].x;
 216             pts[2].y = y2 + offsBtm[idx].y;
 217             pts[3].x = x2 + offsTop[idx].x;
 218             pts[3].y = y2 + offsTop[idx].y;
 219             Polygon(hdc, pts, 4);
 220             break;
 221         }
 222     }
 223     DeleteObject(SelectObject(hdc, oldBrush));
 224     DeleteObject(SelectObject(hdc, oldPen));
 225 }
 226
 227 void
 228 RectSel(HDC hdc, LONG x1, LONG y1, LONG x2, LONG y2)
 229 {
 230     HBRUSH oldBrush;
 231     LOGBRUSH logbrush;
 232     HPEN oldPen = (HPEN) SelectObject(hdc, CreatePen(PS_DOT, 1, 0x00000000));
 233     UINT oldRop = GetROP2(hdc);
 234
 235     SetROP2(hdc, R2_NOTXORPEN);
 236
 237     logbrush.lbStyle = BS_HOLLOW;
 238     logbrush.lbColor = 0;
 239     logbrush.lbHatch = 0;
 240     oldBrush = (HBRUSH) SelectObject(hdc, CreateBrushIndirect(&logbrush));
 241     Rectangle(hdc, x1, y1, x2, y2);
 242     DeleteObject(SelectObject(hdc, oldBrush));
 243     DeleteObject(SelectObject(hdc, oldPen));
 244
 245     SetROP2(hdc, oldRop);
 246 }
 247
 248 void
 249 SelectionFrame(HDC hdc, LONG x1, LONG y1, LONG x2, LONG y2, DWORD system_selection_color)
 250 {
 251     HBRUSH oldBrush;
 252     LOGBRUSH logbrush;
 253     HPEN oldPen = (HPEN) SelectObject(hdc, CreatePen(PS_DOT, 1, system_selection_color));
 254
 255     logbrush.lbStyle = BS_HOLLOW;
 256     logbrush.lbColor = 0;
 257     logbrush.lbHatch = 0;
 258     oldBrush = (HBRUSH) SelectObject(hdc, CreateBrushIndirect(&logbrush));
 259     Rectangle(hdc, x1, y1, x2, y2); /* SEL BOX FRAME */
 260     DeleteObject(SelectObject(hdc, oldBrush));
 261     DeleteObject(SelectObject(hdc, oldPen));
 262     oldPen = (HPEN) SelectObject(hdc, CreatePen(PS_SOLID, 1, system_selection_color));
 263     oldBrush = (HBRUSH) SelectObject(hdc, CreateSolidBrush(system_selection_color));
 264     Rectangle(hdc, x1 - 1, y1 - 1, x1 + 2, y1 + 2);
 265     Rectangle(hdc, x2 - 2, y1 - 1, x2 + 2, y1 + 2);
 266     Rectangle(hdc, x1 - 1, y2 - 2, x1 + 2, y2 + 1);
 267     Rectangle(hdc, x2 - 2, y2 - 2, x2 + 2, y2 + 1);
 268     Rectangle(hdc, (x1 + x2) / 2 - 1, y1 - 1, (x1 + x2) / 2 + 2, y1 + 2);
 269     Rectangle(hdc, (x1 + x2) / 2 - 1, y2 - 2, (x1 + x2) / 2 + 2, y2 + 1);
 270     Rectangle(hdc, x1 - 1, (y1 + y2) / 2 - 1, x1 + 2, (y1 + y2) / 2 + 2);
 271     Rectangle(hdc, x2 - 2, (y1 + y2) / 2 - 1, x2 + 1, (y1 + y2) / 2 + 2);
 272     DeleteObject(SelectObject(hdc, oldBrush));
 273     DeleteObject(SelectObject(hdc, oldPen));
 274 }
 275
 276 void
 277 Text(HDC hdc, LONG x1, LONG y1, LONG x2, LONG y2, COLORREF fg, COLORREF bg, LPCTSTR lpchText, HFONT font, LONG style)
 278 {
 279     HFONT oldFont;
 280     RECT rect = {x1, y1, x2, y2};
 281     COLORREF oldColor;
 282     COLORREF oldBkColor;
 283     int oldBkMode;
 284     oldFont = (HFONT) SelectObject(hdc, font);
 285     oldColor = SetTextColor(hdc, fg);
 286     oldBkColor = SetBkColor(hdc, bg);
 287     oldBkMode = SetBkMode(hdc, TRANSPARENT);
 288     if (style == 0)
 289         Rect(hdc, x1, y1, x2, y2, bg, bg, 1, 2);
 290     DrawText(hdc, lpchText, -1, &rect, DT_EDITCONTROL);
 291     SelectObject(hdc, oldFont);
 292     SetTextColor(hdc, oldColor);
 293     SetBkColor(hdc, oldBkColor);
 294     SetBkMode(hdc, oldBkMode);
 295 }