/scintilla/src/LineMarker.cxx

https://github.com/quiachonj/notepad-plus · C++ · 309 lines · 257 code · 43 blank · 9 comment · 86 complexity · acfc2a5bc13028c8e6dfa4783ba7eecb MD5 · raw file 

    

  1. // Scintilla source code edit control

    2. 

  2. /** @file LineMarker.cxx

    3. 

  3.  ** Defines the look of a line marker in the margin .

    4. 

  4.  **/

    5. 

  5. // Copyright 1998-2003 by Neil Hodgson <neilh@scintilla.org>

    6. 

  6. // The License.txt file describes the conditions under which this software may be distributed.

    7. 

  7. 

    8. 

  8. #include <string.h>

    9. 

  9. 

    10. 

  10. #include "Platform.h"

    11. 

  11. 

    12. 

  12. #include "Scintilla.h"

    13. 

  13. #include "XPM.h"

    14. 

  14. #include "LineMarker.h"

    15. 

  15. 

    16. 

  16. #ifdef SCI_NAMESPACE

    17. 

  17. using namespace Scintilla;

    18. 

  18. #endif

    19. 

  19. 

    20. 

  20. void LineMarker::RefreshColourPalette(Palette &pal, bool want) {

    21. 

  21. 	pal.WantFind(fore, want);

    22. 

  22. 	pal.WantFind(back, want);

    23. 

  23. 	if (pxpm) {

    24. 

  24. 		pxpm->RefreshColourPalette(pal, want);

    25. 

  25. 	}

    26. 

  26. }

    27. 

  27. 

    28. 

  28. void LineMarker::SetXPM(const char *textForm) {

    29. 

  29. 	delete pxpm;

    30. 

  30. 	pxpm = new XPM(textForm);

    31. 

  31. 	markType = SC_MARK_PIXMAP;

    32. 

  32. }

    33. 

  33. 

    34. 

  34. void LineMarker::SetXPM(const char * const *linesForm) {

    35. 

  35. 	delete pxpm;

    36. 

  36. 	pxpm = new XPM(linesForm);

    37. 

  37. 	markType = SC_MARK_PIXMAP;

    38. 

  38. }

    39. 

  39. 

    40. 

  40. static void DrawBox(Surface *surface, int centreX, int centreY, int armSize, ColourAllocated fore, ColourAllocated back) {

    41. 

  41. 	PRectangle rc;

    42. 

  42. 	rc.left = centreX - armSize;

    43. 

  43. 	rc.top = centreY - armSize;

    44. 

  44. 	rc.right = centreX + armSize + 1;

    45. 

  45. 	rc.bottom = centreY + armSize + 1;

    46. 

  46. 	surface->RectangleDraw(rc, back, fore);

    47. 

  47. }

    48. 

  48. 

    49. 

  49. static void DrawCircle(Surface *surface, int centreX, int centreY, int armSize, ColourAllocated fore, ColourAllocated back) {

    50. 

  50. 	PRectangle rcCircle;

    51. 

  51. 	rcCircle.left = centreX - armSize;

    52. 

  52. 	rcCircle.top = centreY - armSize;

    53. 

  53. 	rcCircle.right = centreX + armSize + 1;

    54. 

  54. 	rcCircle.bottom = centreY + armSize + 1;

    55. 

  55. 	surface->Ellipse(rcCircle, back, fore);

    56. 

  56. }

    57. 

  57. 

    58. 

  58. static void DrawPlus(Surface *surface, int centreX, int centreY, int armSize, ColourAllocated fore) {

    59. 

  59. 	PRectangle rcV(centreX, centreY - armSize + 2, centreX + 1, centreY + armSize - 2 + 1);

    60. 

  60. 	surface->FillRectangle(rcV, fore);

    61. 

  61. 	PRectangle rcH(centreX - armSize + 2, centreY, centreX + armSize - 2 + 1, centreY+1);

    62. 

  62. 	surface->FillRectangle(rcH, fore);

    63. 

  63. }

    64. 

  64. 

    65. 

  65. static void DrawMinus(Surface *surface, int centreX, int centreY, int armSize, ColourAllocated fore) {

    66. 

  66. 	PRectangle rcH(centreX - armSize + 2, centreY, centreX + armSize - 2 + 1, centreY+1);

    67. 

  67. 	surface->FillRectangle(rcH, fore);

    68. 

  68. }

    69. 

  69. 

    70. 

  70. void LineMarker::Draw(Surface *surface, PRectangle &rcWhole, Font &fontForCharacter) {

    71. 

  71. 	if ((markType == SC_MARK_PIXMAP) && (pxpm)) {

    72. 

  72. 		pxpm->Draw(surface, rcWhole);

    73. 

  73. 		return;

    74. 

  74. 	}

    75. 

  75. 	// Restrict most shapes a bit

    76. 

  76. 	PRectangle rc = rcWhole;

    77. 

  77. 	rc.top++;

    78. 

  78. 	rc.bottom--;

    79. 

  79. 	int minDim = Platform::Minimum(rc.Width(), rc.Height());

    80. 

  80. 	minDim--;	// Ensure does not go beyond edge

    81. 

  81. 	int centreX = (rc.right + rc.left) / 2;

    82. 

  82. 	int centreY = (rc.bottom + rc.top) / 2;

    83. 

  83. 	int dimOn2 = minDim / 2;

    84. 

  84. 	int dimOn4 = minDim / 4;

    85. 

  85. 	int blobSize = dimOn2-1;

    86. 

  86. 	int armSize = dimOn2-2;

    87. 

  87. 	if (rc.Width() > (rc.Height() * 2)) {

    88. 

  88. 		// Wide column is line number so move to left to try to avoid overlapping number

    89. 

  89. 		centreX = rc.left + dimOn2 + 1;

    90. 

  90. 	}

    91. 

  91. 	if (markType == SC_MARK_ROUNDRECT) {

    92. 

  92. 		PRectangle rcRounded = rc;

    93. 

  93. 		rcRounded.left = rc.left + 1;

    94. 

  94. 		rcRounded.right = rc.right - 1;

    95. 

  95. 		surface->RoundedRectangle(rcRounded, fore.allocated, back.allocated);

    96. 

  96. 	} else if (markType == SC_MARK_CIRCLE) {

    97. 

  97. 		PRectangle rcCircle;

    98. 

  98. 		rcCircle.left = centreX - dimOn2;

    99. 

  99. 		rcCircle.top = centreY - dimOn2;

    100. 

  100. 		rcCircle.right = centreX + dimOn2;

    101. 

  101. 		rcCircle.bottom = centreY + dimOn2;

    102. 

  102. 		surface->Ellipse(rcCircle, fore.allocated, back.allocated);

    103. 

  103. 	} else if (markType == SC_MARK_ARROW) {

    104. 

  104. 		Point pts[] = {

    105. 

  105.     		Point(centreX - dimOn4, centreY - dimOn2),

    106. 

  106.     		Point(centreX - dimOn4, centreY + dimOn2),

    107. 

  107.     		Point(centreX + dimOn2 - dimOn4, centreY),

    108. 

  108. 		};

    109. 

  109. 		surface->Polygon(pts, sizeof(pts) / sizeof(pts[0]),

    110. 

  110.                  		fore.allocated, back.allocated);

    111. 

  111. 

    112. 

  112. 	} else if (markType == SC_MARK_ARROWDOWN) {

    113. 

  113. 		Point pts[] = {

    114. 

  114.     		Point(centreX - dimOn2, centreY - dimOn4),

    115. 

  115.     		Point(centreX + dimOn2, centreY - dimOn4),

    116. 

  116.     		Point(centreX, centreY + dimOn2 - dimOn4),

    117. 

  117. 		};

    118. 

  118. 		surface->Polygon(pts, sizeof(pts) / sizeof(pts[0]),

    119. 

  119.                  		fore.allocated, back.allocated);

    120. 

  120. 

    121. 

  121. 	} else if (markType == SC_MARK_PLUS) {

    122. 

  122. 		Point pts[] = {

    123. 

  123.     		Point(centreX - armSize, centreY - 1),

    124. 

  124.     		Point(centreX - 1, centreY - 1),

    125. 

  125.     		Point(centreX - 1, centreY - armSize),

    126. 

  126.     		Point(centreX + 1, centreY - armSize),

    127. 

  127.     		Point(centreX + 1, centreY - 1),

    128. 

  128.     		Point(centreX + armSize, centreY -1),

    129. 

  129.     		Point(centreX + armSize, centreY +1),

    130. 

  130.     		Point(centreX + 1, centreY + 1),

    131. 

  131.     		Point(centreX + 1, centreY + armSize),

    132. 

  132.     		Point(centreX - 1, centreY + armSize),

    133. 

  133.     		Point(centreX - 1, centreY + 1),

    134. 

  134.     		Point(centreX - armSize, centreY + 1),

    135. 

  135. 		};

    136. 

  136. 		surface->Polygon(pts, sizeof(pts) / sizeof(pts[0]),

    137. 

  137.                  		fore.allocated, back.allocated);

    138. 

  138. 

    139. 

  139. 	} else if (markType == SC_MARK_MINUS) {

    140. 

  140. 		Point pts[] = {

    141. 

  141.     		Point(centreX - armSize, centreY - 1),

    142. 

  142.     		Point(centreX + armSize, centreY -1),

    143. 

  143.     		Point(centreX + armSize, centreY +1),

    144. 

  144.     		Point(centreX - armSize, centreY + 1),

    145. 

  145. 		};

    146. 

  146. 		surface->Polygon(pts, sizeof(pts) / sizeof(pts[0]),

    147. 

  147.                  		fore.allocated, back.allocated);

    148. 

  148. 

    149. 

  149. 	} else if (markType == SC_MARK_SMALLRECT) {

    150. 

  150. 		PRectangle rcSmall;

    151. 

  151. 		rcSmall.left = rc.left + 1;

    152. 

  152. 		rcSmall.top = rc.top + 2;

    153. 

  153. 		rcSmall.right = rc.right - 1;

    154. 

  154. 		rcSmall.bottom = rc.bottom - 2;

    155. 

  155. 		surface->RectangleDraw(rcSmall, fore.allocated, back.allocated);

    156. 

  156. 

    157. 

  157. 	} else if (markType == SC_MARK_EMPTY || markType == SC_MARK_BACKGROUND) {

    158. 

  158. 		// An invisible marker so don't draw anything

    159. 

  159. 

    160. 

  160. 	} else if (markType == SC_MARK_VLINE) {

    161. 

  161. 		surface->PenColour(back.allocated);

    162. 

  162. 		surface->MoveTo(centreX, rcWhole.top);

    163. 

  163. 		surface->LineTo(centreX, rcWhole.bottom);

    164. 

  164. 

    165. 

  165. 	} else if (markType == SC_MARK_LCORNER) {

    166. 

  166. 		surface->PenColour(back.allocated);

    167. 

  167. 		surface->MoveTo(centreX, rcWhole.top);

    168. 

  168. 		surface->LineTo(centreX, rc.top + dimOn2);

    169. 

  169. 		surface->LineTo(rc.right - 2, rc.top + dimOn2);

    170. 

  170. 

    171. 

  171. 	} else if (markType == SC_MARK_TCORNER) {

    172. 

  172. 		surface->PenColour(back.allocated);

    173. 

  173. 		surface->MoveTo(centreX, rcWhole.top);

    174. 

  174. 		surface->LineTo(centreX, rcWhole.bottom);

    175. 

  175. 		surface->MoveTo(centreX, rc.top + dimOn2);

    176. 

  176. 		surface->LineTo(rc.right - 2, rc.top + dimOn2);

    177. 

  177. 

    178. 

  178. 	} else if (markType == SC_MARK_LCORNERCURVE) {

    179. 

  179. 		surface->PenColour(back.allocated);

    180. 

  180. 		surface->MoveTo(centreX, rcWhole.top);

    181. 

  181. 		surface->LineTo(centreX, rc.top + dimOn2-3);

    182. 

  182. 		surface->LineTo(centreX+3, rc.top + dimOn2);

    183. 

  183. 		surface->LineTo(rc.right - 1, rc.top + dimOn2);

    184. 

  184. 

    185. 

  185. 	} else if (markType == SC_MARK_TCORNERCURVE) {

    186. 

  186. 		surface->PenColour(back.allocated);

    187. 

  187. 		surface->MoveTo(centreX, rcWhole.top);

    188. 

  188. 		surface->LineTo(centreX, rcWhole.bottom);

    189. 

  189. 

    190. 

  190. 		surface->MoveTo(centreX, rc.top + dimOn2-3);

    191. 

  191. 		surface->LineTo(centreX+3, rc.top + dimOn2);

    192. 

  192. 		surface->LineTo(rc.right - 1, rc.top + dimOn2);

    193. 

  193. 

    194. 

  194. 	} else if (markType == SC_MARK_BOXPLUS) {

    195. 

  195. 		surface->PenColour(back.allocated);

    196. 

  196. 		DrawBox(surface, centreX, centreY, blobSize, fore.allocated, back.allocated);

    197. 

  197. 		DrawPlus(surface, centreX, centreY, blobSize, back.allocated);

    198. 

  198. 

    199. 

  199. 	} else if (markType == SC_MARK_BOXPLUSCONNECTED) {

    200. 

  200. 		surface->PenColour(back.allocated);

    201. 

  201. 		DrawBox(surface, centreX, centreY, blobSize, fore.allocated, back.allocated);

    202. 

  202. 		DrawPlus(surface, centreX, centreY, blobSize, back.allocated);

    203. 

  203. 

    204. 

  204. 		surface->MoveTo(centreX, centreY + blobSize);

    205. 

  205. 		surface->LineTo(centreX, rcWhole.bottom);

    206. 

  206. 

    207. 

  207. 		surface->MoveTo(centreX, rcWhole.top);

    208. 

  208. 		surface->LineTo(centreX, centreY - blobSize);

    209. 

  209. 

    210. 

  210. 	} else if (markType == SC_MARK_BOXMINUS) {

    211. 

  211. 		surface->PenColour(back.allocated);

    212. 

  212. 		DrawBox(surface, centreX, centreY, blobSize, fore.allocated, back.allocated);

    213. 

  213. 		DrawMinus(surface, centreX, centreY, blobSize, back.allocated);

    214. 

  214. 

    215. 

  215. 		surface->MoveTo(centreX, centreY + blobSize);

    216. 

  216. 		surface->LineTo(centreX, rcWhole.bottom);

    217. 

  217. 

    218. 

  218. 	} else if (markType == SC_MARK_BOXMINUSCONNECTED) {

    219. 

  219. 		surface->PenColour(back.allocated);

    220. 

  220. 		DrawBox(surface, centreX, centreY, blobSize, fore.allocated, back.allocated);

    221. 

  221. 		DrawMinus(surface, centreX, centreY, blobSize, back.allocated);

    222. 

  222. 

    223. 

  223. 		surface->MoveTo(centreX, centreY + blobSize);

    224. 

  224. 		surface->LineTo(centreX, rcWhole.bottom);

    225. 

  225. 

    226. 

  226. 		surface->MoveTo(centreX, rcWhole.top);

    227. 

  227. 		surface->LineTo(centreX, centreY - blobSize);

    228. 

  228. 

    229. 

  229. 	} else if (markType == SC_MARK_CIRCLEPLUS) {

    230. 

  230. 		DrawCircle(surface, centreX, centreY, blobSize, fore.allocated, back.allocated);

    231. 

  231. 		surface->PenColour(back.allocated);

    232. 

  232. 		DrawPlus(surface, centreX, centreY, blobSize, back.allocated);

    233. 

  233. 

    234. 

  234. 	} else if (markType == SC_MARK_CIRCLEPLUSCONNECTED) {

    235. 

  235. 		DrawCircle(surface, centreX, centreY, blobSize, fore.allocated, back.allocated);

    236. 

  236. 		surface->PenColour(back.allocated);

    237. 

  237. 		DrawPlus(surface, centreX, centreY, blobSize, back.allocated);

    238. 

  238. 

    239. 

  239. 		surface->MoveTo(centreX, centreY + blobSize);

    240. 

  240. 		surface->LineTo(centreX, rcWhole.bottom);

    241. 

  241. 

    242. 

  242. 		surface->MoveTo(centreX, rcWhole.top);

    243. 

  243. 		surface->LineTo(centreX, centreY - blobSize);

    244. 

  244. 

    245. 

  245. 	} else if (markType == SC_MARK_CIRCLEMINUS) {

    246. 

  246. 		DrawCircle(surface, centreX, centreY, blobSize, fore.allocated, back.allocated);

    247. 

  247. 		surface->PenColour(back.allocated);

    248. 

  248. 		DrawMinus(surface, centreX, centreY, blobSize, back.allocated);

    249. 

  249. 

    250. 

  250. 		surface->MoveTo(centreX, centreY + blobSize);

    251. 

  251. 		surface->LineTo(centreX, rcWhole.bottom);

    252. 

  252. 

    253. 

  253. 	} else if (markType == SC_MARK_CIRCLEMINUSCONNECTED) {

    254. 

  254. 		DrawCircle(surface, centreX, centreY, blobSize, fore.allocated, back.allocated);

    255. 

  255. 		surface->PenColour(back.allocated);

    256. 

  256. 		DrawMinus(surface, centreX, centreY, blobSize, back.allocated);

    257. 

  257. 

    258. 

  258. 		surface->MoveTo(centreX, centreY + blobSize);

    259. 

  259. 		surface->LineTo(centreX, rcWhole.bottom);

    260. 

  260. 

    261. 

  261. 		surface->MoveTo(centreX, rcWhole.top);

    262. 

  262. 		surface->LineTo(centreX, centreY - blobSize);

    263. 

  263. 

    264. 

  264. 	} else if (markType >= SC_MARK_CHARACTER) {

    265. 

  265. 		char character[1];

    266. 

  266. 		character[0] = static_cast<char>(markType - SC_MARK_CHARACTER);

    267. 

  267. 		int width = surface->WidthText(fontForCharacter, character, 1);

    268. 

  268. 		rc.left += (rc.Width() - width) / 2;

    269. 

  269. 		rc.right = rc.left + width;

    270. 

  270. 		surface->DrawTextClipped(rc, fontForCharacter, rc.bottom - 2,

    271. 

  271. 			character, 1, fore.allocated, back.allocated);

    272. 

  272. 

    273. 

  273. 	} else if (markType == SC_MARK_DOTDOTDOT) {

    274. 

  274. 		int right = centreX - 6;

    275. 

  275. 		for (int b=0; b<3; b++) {

    276. 

  276. 			PRectangle rcBlob(right, rc.bottom - 4, right + 2, rc.bottom-2);

    277. 

  277. 			surface->FillRectangle(rcBlob, fore.allocated);

    278. 

  278. 			right += 5;

    279. 

  279. 		}

    280. 

  280. 	} else if (markType == SC_MARK_ARROWS) {

    281. 

  281. 		surface->PenColour(fore.allocated);

    282. 

  282. 		int right = centreX - 2;

    283. 

  283. 		for (int b=0; b<3; b++) {

    284. 

  284. 			surface->MoveTo(right - 4, centreY - 4);

    285. 

  285. 			surface->LineTo(right, centreY);

    286. 

  286. 			surface->LineTo(right - 5, centreY + 5);

    287. 

  287. 			right += 4;

    288. 

  288. 		}

    289. 

  289. 	} else if (markType == SC_MARK_SHORTARROW) {

    290. 

  290. 		Point pts[] = {

    291. 

  291. 			Point(centreX, centreY + dimOn2),

    292. 

  292. 			Point(centreX + dimOn2, centreY),

    293. 

  293. 			Point(centreX, centreY - dimOn2),

    294. 

  294. 			Point(centreX, centreY - dimOn4),

    295. 

  295. 			Point(centreX - dimOn4, centreY - dimOn4),

    296. 

  296. 			Point(centreX - dimOn4, centreY + dimOn4),

    297. 

  297. 			Point(centreX, centreY + dimOn4),

    298. 

  298. 			Point(centreX, centreY + dimOn2),

    299. 

  299. 		};

    300. 

  300. 		surface->Polygon(pts, sizeof(pts) / sizeof(pts[0]),

    301. 

  301. 				fore.allocated, back.allocated);

    302. 

  302. 	} else if (markType == SC_MARK_LEFTRECT) {

    303. 

  303. 		PRectangle rcLeft = rcWhole;

    304. 

  304. 		rcLeft.right = rcLeft.left + 4;

    305. 

  305. 		surface->FillRectangle(rcLeft, back.allocated);

    306. 

  306. 	} else { // SC_MARK_FULLRECT

    307. 

  307. 		surface->FillRectangle(rcWhole, back.allocated);

    308. 

  308. 	}

    309. 

  309. }
    310.