src/TortoiseMerge/LocatorBar.cpp

   1 // TortoiseMerge - a Diff/Patch program\r
   2 \r
   3 // Copyright (C) 2006-2008 - TortoiseSVN\r
   4 \r
   5 // This program is free software; you can redistribute it and/or\r
   6 // modify it under the terms of the GNU General Public License\r
   7 // as published by the Free Software Foundation; either version 2\r
   8 // of the License, or (at your option) any later version.\r
   9 \r
  10 // This program is distributed in the hope that it will be useful,\r
  11 // but WITHOUT ANY WARRANTY; without even the implied warranty of\r
  12 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\r
  13 // GNU General Public License for more details.\r
  14 \r
  15 // You should have received a copy of the GNU General Public License\r
  16 // along with this program; if not, write to the Free Software Foundation,\r
  17 // 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.\r
  18 //\r
  19 #include "stdafx.h"\r
  20 #include "TortoiseMerge.h"\r
  21 #include "MainFrm.h"\r
  22 #include "LocatorBar.h"\r
  23 #include "LeftView.h"\r
  24 #include "RightView.h"\r
  25 #include "BottomView.h"\r
  26 #include "DiffColors.h"\r
  27 \r
  28 \r
  29 IMPLEMENT_DYNAMIC(CLocatorBar, CPaneDialog)\r
  30 CLocatorBar::CLocatorBar() : CPaneDialog()\r
  31 {\r
  32         m_pMainFrm = NULL;\r
  33         m_pCacheBitmap = NULL;\r
  34         m_bMouseWithin = FALSE;\r
  35 }\r
  36 \r
  37 CLocatorBar::~CLocatorBar()\r
  38 {\r
  39         if (m_pCacheBitmap)\r
  40         {\r
  41                 m_pCacheBitmap->DeleteObject();\r
  42                 delete m_pCacheBitmap;\r
  43                 m_pCacheBitmap = NULL;\r
  44         }\r
  45 }\r
  46 \r
  47 BEGIN_MESSAGE_MAP(CLocatorBar, CPaneDialog)\r
  48         ON_WM_PAINT()\r
  49         ON_WM_SIZE()\r
  50         ON_WM_ERASEBKGND()\r
  51         ON_WM_LBUTTONDOWN()\r
  52         ON_WM_MOUSEMOVE()\r
  53         ON_MESSAGE(WM_MOUSELEAVE, OnMouseLeave)\r
  54 END_MESSAGE_MAP()\r
  55 \r
  56 void CLocatorBar::DocumentUpdated()\r
  57 {\r
  58         m_pMainFrm = (CMainFrame *)this->GetParentFrame();\r
  59         m_arLeftIdent.RemoveAll();\r
  60         m_arLeftState.RemoveAll();\r
  61         m_arRightIdent.RemoveAll();\r
  62         m_arRightState.RemoveAll();\r
  63         m_arBottomIdent.RemoveAll();\r
  64         m_arBottomState.RemoveAll();\r
  65         DiffStates state = DIFFSTATE_UNKNOWN;\r
  66         long identcount = 1;\r
  67         m_nLines = 0;\r
  68         if (m_pMainFrm->m_pwndLeftView->m_pViewData)\r
  69         {\r
  70                 if (m_pMainFrm->m_pwndLeftView->m_pViewData->GetCount())\r
  71                         state = m_pMainFrm->m_pwndLeftView->m_pViewData->GetState(0);\r
  72                 for (int i=0; i<m_pMainFrm->m_pwndLeftView->m_pViewData->GetCount(); i++)\r
  73                 {\r
  74                         if (state == m_pMainFrm->m_pwndLeftView->m_pViewData->GetState(i))\r
  75                         {\r
  76                                 identcount++;\r
  77                         }\r
  78                         else\r
  79                         {\r
  80                                 m_arLeftIdent.Add(identcount);\r
  81                                 m_arLeftState.Add(state);\r
  82                                 state = m_pMainFrm->m_pwndLeftView->m_pViewData->GetState(i);\r
  83                                 identcount = 1;\r
  84                         } \r
  85                 }\r
  86                 m_arLeftIdent.Add(identcount);\r
  87                 m_arLeftState.Add(state);\r
  88         }\r
  89 \r
  90         if (m_pMainFrm->m_pwndRightView->m_pViewData)\r
  91         {\r
  92                 if (m_pMainFrm->m_pwndRightView->m_pViewData->GetCount())\r
  93                         state = m_pMainFrm->m_pwndRightView->m_pViewData->GetState(0);\r
  94                 identcount = 1;\r
  95                 for (int i=0; i<m_pMainFrm->m_pwndRightView->m_pViewData->GetCount(); i++)\r
  96                 {\r
  97                         if (state == m_pMainFrm->m_pwndRightView->m_pViewData->GetState(i))\r
  98                         {\r
  99                                 identcount++;\r
 100                         }\r
 101                         else\r
 102                         {\r
 103                                 m_arRightIdent.Add(identcount);\r
 104                                 m_arRightState.Add(state);\r
 105                                 state = m_pMainFrm->m_pwndRightView->m_pViewData->GetState(i);\r
 106                                 identcount = 1;\r
 107                         }\r
 108                 }\r
 109                 m_arRightIdent.Add(identcount);\r
 110                 m_arRightState.Add(state);\r
 111         }\r
 112 \r
 113         if (m_pMainFrm->m_pwndBottomView->m_pViewData)\r
 114         {\r
 115                 if (m_pMainFrm->m_pwndBottomView->m_pViewData->GetCount())\r
 116                         state = m_pMainFrm->m_pwndBottomView->m_pViewData->GetState(0);\r
 117                 identcount = 1;\r
 118                 for (int i=0; i<m_pMainFrm->m_pwndBottomView->m_pViewData->GetCount(); i++)\r
 119                 {\r
 120                         if (state == m_pMainFrm->m_pwndBottomView->m_pViewData->GetState(i))\r
 121                         {\r
 122                                 identcount++;\r
 123                         }\r
 124                         else\r
 125                         {\r
 126                                 m_arBottomIdent.Add(identcount);\r
 127                                 m_arBottomState.Add(state);\r
 128                                 state = m_pMainFrm->m_pwndBottomView->m_pViewData->GetState(i);\r
 129                                 identcount = 1;\r
 130                         }\r
 131                 }\r
 132                 m_arBottomIdent.Add(identcount);\r
 133                 m_arBottomState.Add(state);\r
 134                 m_nLines = (int)max(m_pMainFrm->m_pwndBottomView->m_pViewData->GetCount(), m_pMainFrm->m_pwndRightView->m_pViewData->GetCount());\r
 135         }\r
 136         else if (m_pMainFrm->m_pwndRightView->m_pViewData)\r
 137                 m_nLines = (int)max(0, m_pMainFrm->m_pwndRightView->m_pViewData->GetCount());\r
 138 \r
 139         if (m_pMainFrm->m_pwndLeftView->m_pViewData)\r
 140                 m_nLines = (int)max(m_nLines, m_pMainFrm->m_pwndLeftView->m_pViewData->GetCount());\r
 141         else\r
 142                 m_nLines = 0;\r
 143         m_nLines++;\r
 144         Invalidate();\r
 145 }\r
 146 \r
 147 void CLocatorBar::OnPaint()\r
 148 {\r
 149         CPaintDC dc(this); // device context for painting\r
 150         CRect rect;\r
 151         GetClientRect(rect);\r
 152         long height = rect.Height();\r
 153         long width = rect.Width();\r
 154         long nTopLine = 0;\r
 155         long nBottomLine = 0;\r
 156         if ((m_pMainFrm)&&(m_pMainFrm->m_pwndLeftView))\r
 157         {\r
 158                 nTopLine = m_pMainFrm->m_pwndLeftView->m_nTopLine;\r
 159                 nBottomLine = nTopLine + m_pMainFrm->m_pwndLeftView->GetScreenLines();\r
 160         }\r
 161         CDC cacheDC;\r
 162         VERIFY(cacheDC.CreateCompatibleDC(&dc));\r
 163 \r
 164         if (m_pCacheBitmap == NULL)\r
 165         {\r
 166                 m_pCacheBitmap = new CBitmap;\r
 167                 VERIFY(m_pCacheBitmap->CreateCompatibleBitmap(&dc, width, height));\r
 168         }\r
 169         CBitmap *pOldBitmap = cacheDC.SelectObject(m_pCacheBitmap);\r
 170 \r
 171 \r
 172         COLORREF color, color2;\r
 173         \r
 174         CDiffColors::GetInstance().GetColors(DIFFSTATE_UNKNOWN, color, color2);\r
 175         cacheDC.FillSolidRect(rect, color);\r
 176         \r
 177         long barwidth = (width/3);\r
 178         DWORD state = 0;\r
 179         long identcount = 0;\r
 180         long linecount = 0;\r
 181         \r
 182         if (m_nLines)\r
 183                 cacheDC.FillSolidRect(rect.left, height*nTopLine/m_nLines,\r
 184                         rect.Width(), (height*nBottomLine/m_nLines)-(height*nTopLine/m_nLines), RGB(180,180,255));\r
 185         if (m_pMainFrm->m_pwndLeftView->IsWindowVisible())\r
 186         {\r
 187                 for (long i=0; i<m_arLeftIdent.GetCount(); i++)\r
 188                 {\r
 189                         identcount = m_arLeftIdent.GetAt(i);\r
 190                         state = m_arLeftState.GetAt(i);\r
 191                         CDiffColors::GetInstance().GetColors((DiffStates)state, color, color2);\r
 192                         if ((DiffStates)state != DIFFSTATE_NORMAL)\r
 193                                 cacheDC.FillSolidRect(rect.left, height*linecount/m_nLines, \r
 194                                                         barwidth, max(height*identcount/m_nLines,1), color);\r
 195                         linecount += identcount;\r
 196                 }\r
 197         }\r
 198         state = 0;\r
 199         identcount = 0;\r
 200         linecount = 0;\r
 201 \r
 202         if (m_pMainFrm->m_pwndRightView->IsWindowVisible())\r
 203         {\r
 204                 for (long i=0; i<m_arRightIdent.GetCount(); i++)\r
 205                 {\r
 206                         identcount = m_arRightIdent.GetAt(i);\r
 207                         state = m_arRightState.GetAt(i);\r
 208                         CDiffColors::GetInstance().GetColors((DiffStates)state, color, color2);\r
 209                         if ((DiffStates)state != DIFFSTATE_NORMAL)\r
 210                                 cacheDC.FillSolidRect(rect.left + (width*2/3), height*linecount/m_nLines, \r
 211                                                         barwidth, max(height*identcount/m_nLines,1), color);\r
 212                         linecount += identcount;\r
 213                 }\r
 214         }\r
 215         state = 0;\r
 216         identcount = 0;\r
 217         linecount = 0;\r
 218         if (m_pMainFrm->m_pwndBottomView->IsWindowVisible())\r
 219         {\r
 220                 for (long i=0; i<m_arBottomIdent.GetCount(); i++)\r
 221                 {\r
 222                         identcount = m_arBottomIdent.GetAt(i);\r
 223                         state = m_arBottomState.GetAt(i);\r
 224                         CDiffColors::GetInstance().GetColors((DiffStates)state, color, color2);\r
 225                         if ((DiffStates)state != DIFFSTATE_NORMAL)\r
 226                                 cacheDC.FillSolidRect(rect.left + (width/3), height*linecount/m_nLines, \r
 227                                                         barwidth, max(height*identcount/m_nLines,1), color);\r
 228                         linecount += identcount;\r
 229                 }\r
 230         }\r
 231 \r
 232         if (m_nLines == 0)\r
 233                 m_nLines = 1;\r
 234         cacheDC.FillSolidRect(rect.left, height*nTopLine/m_nLines,\r
 235                 rect.Width(), 2, RGB(0,0,0));\r
 236         cacheDC.FillSolidRect(rect.left, height*nBottomLine/m_nLines,\r
 237                 rect.Width(), 2, RGB(0,0,0));\r
 238         //draw two vertical lines, so there are three rows visible indicating the three panes\r
 239         cacheDC.FillSolidRect(rect.left + (width/3), rect.top, 1, height, RGB(0,0,0));\r
 240         cacheDC.FillSolidRect(rect.left + (width*2/3), rect.top, 1, height, RGB(0,0,0));\r
 241 \r
 242         // draw the fish eye\r
 243         if (m_bMouseWithin)\r
 244         {\r
 245                 int fishstart = m_MousePos.y - height/20;\r
 246                 int fishheight = height/10;\r
 247                 cacheDC.FillSolidRect(rect.left, fishstart-1, width, 1, RGB(0,0,100));\r
 248                 cacheDC.FillSolidRect(rect.left, fishstart+fishheight+1, width, 1, RGB(0,0,100));\r
 249                 VERIFY(cacheDC.StretchBlt(rect.left, fishstart, width, fishheight, \r
 250                         &cacheDC, 0, fishstart + (3*fishheight/8), width, fishheight/4, SRCCOPY));\r
 251                 // draw the magnified area a little darker, so the\r
 252                 // user has a clear indication of the magnifier\r
 253                 for (int i=rect.left; i<(width - rect.left); i++)\r
 254                 {\r
 255                         for (int j=fishstart; j<fishstart+fishheight; j++)\r
 256                         {\r
 257                                 color = cacheDC.GetPixel(i, j);\r
 258                                 int r,g,b;\r
 259                                 r = max(GetRValue(color)-20, 0);\r
 260                                 g = max(GetGValue(color)-20, 0);\r
 261                                 b = max(GetBValue(color)-20, 0);\r
 262                                 cacheDC.SetPixel(i, j, RGB(r,g,b));\r
 263                         }\r
 264                 }\r
 265         }\r
 266         VERIFY(dc.BitBlt(rect.left, rect.top, width, height, &cacheDC, 0, 0, SRCCOPY));\r
 267         \r
 268         cacheDC.SelectObject(pOldBitmap);\r
 269         cacheDC.DeleteDC();\r
 270 }\r
 271 \r
 272 void CLocatorBar::OnSize(UINT nType, int cx, int cy)\r
 273 {\r
 274         CPaneDialog::OnSize(nType, cx, cy);\r
 275 \r
 276         if (m_pCacheBitmap != NULL)\r
 277         {\r
 278                 m_pCacheBitmap->DeleteObject();\r
 279                 delete m_pCacheBitmap;\r
 280                 m_pCacheBitmap = NULL;\r
 281         }\r
 282         Invalidate();\r
 283 }\r
 284 \r
 285 BOOL CLocatorBar::OnEraseBkgnd(CDC* /*pDC*/)\r
 286 {\r
 287         return TRUE;\r
 288 }\r
 289 \r
 290 void CLocatorBar::OnLButtonDown(UINT nFlags, CPoint point)\r
 291 {\r
 292         CRect rect;\r
 293         GetClientRect(rect); \r
 294         int nLine = point.y*m_nLines/rect.Height();\r
 295 \r
 296         if (nLine < 0)\r
 297                 nLine = 0;\r
 298         if ((m_pMainFrm)&&(m_pMainFrm->m_pwndBottomView))\r
 299                 m_pMainFrm->m_pwndBottomView->GoToLine(nLine, FALSE);\r
 300         if ((m_pMainFrm)&&(m_pMainFrm->m_pwndLeftView))\r
 301                 m_pMainFrm->m_pwndLeftView->GoToLine(nLine, FALSE);\r
 302         if ((m_pMainFrm)&&(m_pMainFrm->m_pwndRightView))\r
 303                 m_pMainFrm->m_pwndRightView->GoToLine(nLine, FALSE);\r
 304         Invalidate();\r
 305         CPaneDialog::OnLButtonDown(nFlags, point);\r
 306 }\r
 307 \r
 308 void CLocatorBar::OnMouseMove(UINT nFlags, CPoint point)\r
 309 {\r
 310         m_MousePos = point;\r
 311         if (!m_bMouseWithin)\r
 312         { \r
 313                 m_bMouseWithin = TRUE;\r
 314                 TRACKMOUSEEVENT tme;\r
 315                 tme.cbSize = sizeof(TRACKMOUSEEVENT);\r
 316                 tme.dwFlags = TME_LEAVE;\r
 317                 tme.hwndTrack = m_hWnd;\r
 318                 _TrackMouseEvent(&tme);\r
 319         }\r
 320 \r
 321         if (nFlags & MK_LBUTTON)\r
 322         {\r
 323                 CRect rect;\r
 324                 GetClientRect(rect); \r
 325                 int nLine = point.y*m_nLines/rect.Height();\r
 326 \r
 327                 if (nLine < 0)\r
 328                         nLine = 0;\r
 329                 if ((m_pMainFrm)&&(m_pMainFrm->m_pwndBottomView))\r
 330                         m_pMainFrm->m_pwndBottomView->GoToLine(nLine, FALSE);\r
 331                 if ((m_pMainFrm)&&(m_pMainFrm->m_pwndLeftView))\r
 332                         m_pMainFrm->m_pwndLeftView->GoToLine(nLine, FALSE);\r
 333                 if ((m_pMainFrm)&&(m_pMainFrm->m_pwndRightView))\r
 334                         m_pMainFrm->m_pwndRightView->GoToLine(nLine, FALSE);\r
 335         }\r
 336         Invalidate();\r
 337 }\r
 338 \r
 339 LRESULT CLocatorBar::OnMouseLeave(WPARAM, LPARAM)\r
 340 {\r
 341         m_bMouseWithin = FALSE;\r
 342         Invalidate();\r
 343         return 0;\r
 344 } \r
 345 \r
 346 \r
 347 \r