ext/scintilla/src/LineMarker.cxx

   1 // Scintilla source code edit control\r
   2 /** @file LineMarker.cxx\r
   3  ** Defines the look of a line marker in the margin .\r
   4  **/\r
   5 // Copyright 1998-2003 by Neil Hodgson <neilh@scintilla.org>\r
   6 // The License.txt file describes the conditions under which this software may be distributed.\r
   7 \r
   8 #include <string.h>\r
   9 \r
  10 #include "Platform.h"\r
  11 \r
  12 #include "Scintilla.h"\r
  13 #include "XPM.h"\r
  14 #include "LineMarker.h"\r
  15 \r
  16 #ifdef SCI_NAMESPACE\r
  17 using namespace Scintilla;\r
  18 #endif\r
  19 \r
  20 void LineMarker::RefreshColourPalette(Palette &pal, bool want) {\r
  21         pal.WantFind(fore, want);\r
  22         pal.WantFind(back, want);\r
  23         if (pxpm) {\r
  24                 pxpm->RefreshColourPalette(pal, want);\r
  25         }\r
  26 }\r
  27 \r
  28 void LineMarker::SetXPM(const char *textForm) {\r
  29         delete pxpm;\r
  30         pxpm = new XPM(textForm);\r
  31         markType = SC_MARK_PIXMAP;\r
  32 }\r
  33 \r
  34 void LineMarker::SetXPM(const char * const *linesForm) {\r
  35         delete pxpm;\r
  36         pxpm = new XPM(linesForm);\r
  37         markType = SC_MARK_PIXMAP;\r
  38 }\r
  39 \r
  40 static void DrawBox(Surface *surface, int centreX, int centreY, int armSize, ColourAllocated fore, ColourAllocated back) {\r
  41         PRectangle rc;\r
  42         rc.left = centreX - armSize;\r
  43         rc.top = centreY - armSize;\r
  44         rc.right = centreX + armSize + 1;\r
  45         rc.bottom = centreY + armSize + 1;\r
  46         surface->RectangleDraw(rc, back, fore);\r
  47 }\r
  48 \r
  49 static void DrawCircle(Surface *surface, int centreX, int centreY, int armSize, ColourAllocated fore, ColourAllocated back) {\r
  50         PRectangle rcCircle;\r
  51         rcCircle.left = centreX - armSize;\r
  52         rcCircle.top = centreY - armSize;\r
  53         rcCircle.right = centreX + armSize + 1;\r
  54         rcCircle.bottom = centreY + armSize + 1;\r
  55         surface->Ellipse(rcCircle, back, fore);\r
  56 }\r
  57 \r
  58 static void DrawPlus(Surface *surface, int centreX, int centreY, int armSize, ColourAllocated fore) {\r
  59         PRectangle rcV(centreX, centreY - armSize + 2, centreX + 1, centreY + armSize - 2 + 1);\r
  60         surface->FillRectangle(rcV, fore);\r
  61         PRectangle rcH(centreX - armSize + 2, centreY, centreX + armSize - 2 + 1, centreY+1);\r
  62         surface->FillRectangle(rcH, fore);\r
  63 }\r
  64 \r
  65 static void DrawMinus(Surface *surface, int centreX, int centreY, int armSize, ColourAllocated fore) {\r
  66         PRectangle rcH(centreX - armSize + 2, centreY, centreX + armSize - 2 + 1, centreY+1);\r
  67         surface->FillRectangle(rcH, fore);\r
  68 }\r
  69 \r
  70 void LineMarker::Draw(Surface *surface, PRectangle &rcWhole, Font &fontForCharacter) {\r
  71         if ((markType == SC_MARK_PIXMAP) && (pxpm)) {\r
  72                 pxpm->Draw(surface, rcWhole);\r
  73                 return;\r
  74         }\r
  75         // Restrict most shapes a bit\r
  76         PRectangle rc = rcWhole;\r
  77         rc.top++;\r
  78         rc.bottom--;\r
  79         int minDim = Platform::Minimum(rc.Width(), rc.Height());\r
  80         minDim--;       // Ensure does not go beyond edge\r
  81         int centreX = (rc.right + rc.left) / 2;\r
  82         int centreY = (rc.bottom + rc.top) / 2;\r
  83         int dimOn2 = minDim / 2;\r
  84         int dimOn4 = minDim / 4;\r
  85         int blobSize = dimOn2-1;\r
  86         int armSize = dimOn2-2;\r
  87         if (rc.Width() > (rc.Height() * 2)) {\r
  88                 // Wide column is line number so move to left to try to avoid overlapping number\r
  89                 centreX = rc.left + dimOn2 + 1;\r
  90         }\r
  91         if (markType == SC_MARK_ROUNDRECT) {\r
  92                 PRectangle rcRounded = rc;\r
  93                 rcRounded.left = rc.left + 1;\r
  94                 rcRounded.right = rc.right - 1;\r
  95                 surface->RoundedRectangle(rcRounded, fore.allocated, back.allocated);\r
  96         } else if (markType == SC_MARK_CIRCLE) {\r
  97                 PRectangle rcCircle;\r
  98                 rcCircle.left = centreX - dimOn2;\r
  99                 rcCircle.top = centreY - dimOn2;\r
 100                 rcCircle.right = centreX + dimOn2;\r
 101                 rcCircle.bottom = centreY + dimOn2;\r
 102                 surface->Ellipse(rcCircle, fore.allocated, back.allocated);\r
 103         } else if (markType == SC_MARK_ARROW) {\r
 104                 Point pts[] = {\r
 105                 Point(centreX - dimOn4, centreY - dimOn2),\r
 106                 Point(centreX - dimOn4, centreY + dimOn2),\r
 107                 Point(centreX + dimOn2 - dimOn4, centreY),\r
 108                 };\r
 109                 surface->Polygon(pts, sizeof(pts) / sizeof(pts[0]),\r
 110                                 fore.allocated, back.allocated);\r
 111 \r
 112         } else if (markType == SC_MARK_ARROWDOWN) {\r
 113                 Point pts[] = {\r
 114                 Point(centreX - dimOn2, centreY - dimOn4),\r
 115                 Point(centreX + dimOn2, centreY - dimOn4),\r
 116                 Point(centreX, centreY + dimOn2 - dimOn4),\r
 117                 };\r
 118                 surface->Polygon(pts, sizeof(pts) / sizeof(pts[0]),\r
 119                                 fore.allocated, back.allocated);\r
 120 \r
 121         } else if (markType == SC_MARK_PLUS) {\r
 122                 Point pts[] = {\r
 123                 Point(centreX - armSize, centreY - 1),\r
 124                 Point(centreX - 1, centreY - 1),\r
 125                 Point(centreX - 1, centreY - armSize),\r
 126                 Point(centreX + 1, centreY - armSize),\r
 127                 Point(centreX + 1, centreY - 1),\r
 128                 Point(centreX + armSize, centreY -1),\r
 129                 Point(centreX + armSize, centreY +1),\r
 130                 Point(centreX + 1, centreY + 1),\r
 131                 Point(centreX + 1, centreY + armSize),\r
 132                 Point(centreX - 1, centreY + armSize),\r
 133                 Point(centreX - 1, centreY + 1),\r
 134                 Point(centreX - armSize, centreY + 1),\r
 135                 };\r
 136                 surface->Polygon(pts, sizeof(pts) / sizeof(pts[0]),\r
 137                                 fore.allocated, back.allocated);\r
 138 \r
 139         } else if (markType == SC_MARK_MINUS) {\r
 140                 Point pts[] = {\r
 141                 Point(centreX - armSize, centreY - 1),\r
 142                 Point(centreX + armSize, centreY -1),\r
 143                 Point(centreX + armSize, centreY +1),\r
 144                 Point(centreX - armSize, centreY + 1),\r
 145                 };\r
 146                 surface->Polygon(pts, sizeof(pts) / sizeof(pts[0]),\r
 147                                 fore.allocated, back.allocated);\r
 148 \r
 149         } else if (markType == SC_MARK_SMALLRECT) {\r
 150                 PRectangle rcSmall;\r
 151                 rcSmall.left = rc.left + 1;\r
 152                 rcSmall.top = rc.top + 2;\r
 153                 rcSmall.right = rc.right - 1;\r
 154                 rcSmall.bottom = rc.bottom - 2;\r
 155                 surface->RectangleDraw(rcSmall, fore.allocated, back.allocated);\r
 156 \r
 157         } else if (markType == SC_MARK_EMPTY || markType == SC_MARK_BACKGROUND) {\r
 158                 // An invisible marker so don't draw anything\r
 159 \r
 160         } else if (markType == SC_MARK_VLINE) {\r
 161                 surface->PenColour(back.allocated);\r
 162                 surface->MoveTo(centreX, rcWhole.top);\r
 163                 surface->LineTo(centreX, rcWhole.bottom);\r
 164 \r
 165         } else if (markType == SC_MARK_LCORNER) {\r
 166                 surface->PenColour(back.allocated);\r
 167                 surface->MoveTo(centreX, rcWhole.top);\r
 168                 surface->LineTo(centreX, rc.top + dimOn2);\r
 169                 surface->LineTo(rc.right - 2, rc.top + dimOn2);\r
 170 \r
 171         } else if (markType == SC_MARK_TCORNER) {\r
 172                 surface->PenColour(back.allocated);\r
 173                 surface->MoveTo(centreX, rcWhole.top);\r
 174                 surface->LineTo(centreX, rcWhole.bottom);\r
 175                 surface->MoveTo(centreX, rc.top + dimOn2);\r
 176                 surface->LineTo(rc.right - 2, rc.top + dimOn2);\r
 177 \r
 178         } else if (markType == SC_MARK_LCORNERCURVE) {\r
 179                 surface->PenColour(back.allocated);\r
 180                 surface->MoveTo(centreX, rcWhole.top);\r
 181                 surface->LineTo(centreX, rc.top + dimOn2-3);\r
 182                 surface->LineTo(centreX+3, rc.top + dimOn2);\r
 183                 surface->LineTo(rc.right - 1, rc.top + dimOn2);\r
 184 \r
 185         } else if (markType == SC_MARK_TCORNERCURVE) {\r
 186                 surface->PenColour(back.allocated);\r
 187                 surface->MoveTo(centreX, rcWhole.top);\r
 188                 surface->LineTo(centreX, rcWhole.bottom);\r
 189 \r
 190                 surface->MoveTo(centreX, rc.top + dimOn2-3);\r
 191                 surface->LineTo(centreX+3, rc.top + dimOn2);\r
 192                 surface->LineTo(rc.right - 1, rc.top + dimOn2);\r
 193 \r
 194         } else if (markType == SC_MARK_BOXPLUS) {\r
 195                 surface->PenColour(back.allocated);\r
 196                 DrawBox(surface, centreX, centreY, blobSize, fore.allocated, back.allocated);\r
 197                 DrawPlus(surface, centreX, centreY, blobSize, back.allocated);\r
 198 \r
 199         } else if (markType == SC_MARK_BOXPLUSCONNECTED) {\r
 200                 surface->PenColour(back.allocated);\r
 201                 DrawBox(surface, centreX, centreY, blobSize, fore.allocated, back.allocated);\r
 202                 DrawPlus(surface, centreX, centreY, blobSize, back.allocated);\r
 203 \r
 204                 surface->MoveTo(centreX, centreY + blobSize);\r
 205                 surface->LineTo(centreX, rcWhole.bottom);\r
 206 \r
 207                 surface->MoveTo(centreX, rcWhole.top);\r
 208                 surface->LineTo(centreX, centreY - blobSize);\r
 209 \r
 210         } else if (markType == SC_MARK_BOXMINUS) {\r
 211                 surface->PenColour(back.allocated);\r
 212                 DrawBox(surface, centreX, centreY, blobSize, fore.allocated, back.allocated);\r
 213                 DrawMinus(surface, centreX, centreY, blobSize, back.allocated);\r
 214 \r
 215                 surface->MoveTo(centreX, centreY + blobSize);\r
 216                 surface->LineTo(centreX, rcWhole.bottom);\r
 217 \r
 218         } else if (markType == SC_MARK_BOXMINUSCONNECTED) {\r
 219                 surface->PenColour(back.allocated);\r
 220                 DrawBox(surface, centreX, centreY, blobSize, fore.allocated, back.allocated);\r
 221                 DrawMinus(surface, centreX, centreY, blobSize, back.allocated);\r
 222 \r
 223                 surface->MoveTo(centreX, centreY + blobSize);\r
 224                 surface->LineTo(centreX, rcWhole.bottom);\r
 225 \r
 226                 surface->MoveTo(centreX, rcWhole.top);\r
 227                 surface->LineTo(centreX, centreY - blobSize);\r
 228 \r
 229         } else if (markType == SC_MARK_CIRCLEPLUS) {\r
 230                 DrawCircle(surface, centreX, centreY, blobSize, fore.allocated, back.allocated);\r
 231                 surface->PenColour(back.allocated);\r
 232                 DrawPlus(surface, centreX, centreY, blobSize, back.allocated);\r
 233 \r
 234         } else if (markType == SC_MARK_CIRCLEPLUSCONNECTED) {\r
 235                 DrawCircle(surface, centreX, centreY, blobSize, fore.allocated, back.allocated);\r
 236                 surface->PenColour(back.allocated);\r
 237                 DrawPlus(surface, centreX, centreY, blobSize, back.allocated);\r
 238 \r
 239                 surface->MoveTo(centreX, centreY + blobSize);\r
 240                 surface->LineTo(centreX, rcWhole.bottom);\r
 241 \r
 242                 surface->MoveTo(centreX, rcWhole.top);\r
 243                 surface->LineTo(centreX, centreY - blobSize);\r
 244 \r
 245         } else if (markType == SC_MARK_CIRCLEMINUS) {\r
 246                 DrawCircle(surface, centreX, centreY, blobSize, fore.allocated, back.allocated);\r
 247                 surface->PenColour(back.allocated);\r
 248                 DrawMinus(surface, centreX, centreY, blobSize, back.allocated);\r
 249 \r
 250                 surface->MoveTo(centreX, centreY + blobSize);\r
 251                 surface->LineTo(centreX, rcWhole.bottom);\r
 252 \r
 253         } else if (markType == SC_MARK_CIRCLEMINUSCONNECTED) {\r
 254                 DrawCircle(surface, centreX, centreY, blobSize, fore.allocated, back.allocated);\r
 255                 surface->PenColour(back.allocated);\r
 256                 DrawMinus(surface, centreX, centreY, blobSize, back.allocated);\r
 257 \r
 258                 surface->MoveTo(centreX, centreY + blobSize);\r
 259                 surface->LineTo(centreX, rcWhole.bottom);\r
 260 \r
 261                 surface->MoveTo(centreX, rcWhole.top);\r
 262                 surface->LineTo(centreX, centreY - blobSize);\r
 263 \r
 264         } else if (markType >= SC_MARK_CHARACTER) {\r
 265                 char character[1];\r
 266                 character[0] = static_cast<char>(markType - SC_MARK_CHARACTER);\r
 267                 int width = surface->WidthText(fontForCharacter, character, 1);\r
 268                 rc.left += (rc.Width() - width) / 2;\r
 269                 rc.right = rc.left + width;\r
 270                 surface->DrawTextClipped(rc, fontForCharacter, rc.bottom - 2,\r
 271                         character, 1, fore.allocated, back.allocated);\r
 272 \r
 273         } else if (markType == SC_MARK_DOTDOTDOT) {\r
 274                 int right = centreX - 6;\r
 275                 for (int b=0; b<3; b++) {\r
 276                         PRectangle rcBlob(right, rc.bottom - 4, right + 2, rc.bottom-2);\r
 277                         surface->FillRectangle(rcBlob, fore.allocated);\r
 278                         right += 5;\r
 279                 }\r
 280         } else if (markType == SC_MARK_ARROWS) {\r
 281                 surface->PenColour(fore.allocated);\r
 282                 int right = centreX - 2;\r
 283                 for (int b=0; b<3; b++) {\r
 284                         surface->MoveTo(right - 4, centreY - 4);\r
 285                         surface->LineTo(right, centreY);\r
 286                         surface->LineTo(right - 5, centreY + 5);\r
 287                         right += 4;\r
 288                 }\r
 289         } else if (markType == SC_MARK_SHORTARROW) {\r
 290                 Point pts[] = {\r
 291                         Point(centreX, centreY + dimOn2),\r
 292                         Point(centreX + dimOn2, centreY),\r
 293                         Point(centreX, centreY - dimOn2),\r
 294                         Point(centreX, centreY - dimOn4),\r
 295                         Point(centreX - dimOn4, centreY - dimOn4),\r
 296                         Point(centreX - dimOn4, centreY + dimOn4),\r
 297                         Point(centreX, centreY + dimOn4),\r
 298                         Point(centreX, centreY + dimOn2),\r
 299                 };\r
 300                 surface->Polygon(pts, sizeof(pts) / sizeof(pts[0]),\r
 301                                 fore.allocated, back.allocated);\r
 302         } else if (markType == SC_MARK_LEFTRECT) {\r
 303                 PRectangle rcLeft = rcWhole;\r
 304                 rcLeft.right = rcLeft.left + 4;\r
 305                 surface->FillRectangle(rcLeft, back.allocated);\r
 306         } else { // SC_MARK_FULLRECT\r
 307                 surface->FillRectangle(rcWhole, back.allocated);\r
 308         }\r
 309 }\r