src/debugger/SourcesWin.cpp

   1 //
   2 //  SourcesWin.cpp - Sources tracing window
   3 //
   4 // by Jean-Paul Mari
   5 //
   6 // JPM = Jean-Paul Mari <djipi.mari@gmail.com>
   7 //
   8 // Who  When        What
   9 // ---  ----------  -------------------------------------------------------------
  10 // JPM  08/23/2019  Created this file
  11 // JPM   Apr./2021  Fixed potential crash with the tabs reset
  12
  13 // STILL TO DO:
  14 // Use the CloseTab signal's value instead to close the current tab
  15 //
  16
  17 #include <stdlib.h>
  18 #include <string.h>
  19 #include "DBGManager.h"
  20 #include "debugger/SourceCWin.h"
  21 #include "debugger/SourcesWin.h"
  22 #include "m68000/m68kinterface.h"
  23
  24
  25 //
  26 SourcesWindow::SourcesWindow(QWidget * parent/*= 0*/) : QWidget(parent, Qt::Dialog),
  27 layout(new QVBoxLayout),
  28 sourcestabWidget(new QTabWidget),
  29 sourcesinfostab(0),
  30 NbSourcesInfos(0),
  31 CurrentTab(0),
  32 OldCurrentTab(0),
  33 OldCurrentNumLineSrc(0),
  34 indexErrorTab(-1),
  35 sourceErrorTab(0)
  36 {
  37         // prepare layout
  38         sourcestabWidget->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);
  39         sourcestabWidget->setTabsClosable(true);
  40         layout->addWidget(sourcestabWidget);
  41
  42         // set layout
  43         setLayout(layout);
  44
  45         // connect the signals
  46         connect(sourcestabWidget, SIGNAL(currentChanged(const int)), this, SLOT(SelectTab(const int)));
  47         connect(sourcestabWidget, SIGNAL(tabCloseRequested(const int)), this, SLOT(CloseTab(const int)));
  48 }
  49
  50
  51 // Close #tab
  52 void SourcesWindow::CloseTab(const int)
  53 {
  54         CloseCurrentTab();
  55 }
  56
  57
  58 // Select tab
  59 void SourcesWindow::SelectTab(const int)
  60 {
  61 #if 0
  62         size_t i = 0;
  63         QString t = sourcestabWidget->tabText(index);
  64         while ((i < NbSourcesInfos) && strcmp(sourcesinfostab[i++].Filename, t.toLatin1().data()));
  65
  66         if ((i != NbSourcesInfos) && (sourcesinfostab[i - 1].IndexTab != -1) && (CurrentTab == (i - 1)))
  67         {
  68                 sourcesinfostab[(i - 1)].sourceCtab->RefreshContents();
  69         }
  70 #endif
  71 }
  72
  73
  74 // Sources initialisation
  75 // Prepare tabs for every available source code file
  76 void SourcesWindow::Init(void)
  77 {
  78         size_t i, j;
  79         char *Ptr, *Ptr1;
  80
  81         // get number of sources
  82         NbSourcesInfos = DBGManager_GetNbSources();
  83         if (NbSourcesInfos)
  84         {
  85                 // alloc structure for the source informations
  86                 sourcesinfostab = (SourcesInfos *)calloc(NbSourcesInfos, sizeof(SourcesInfos));
  87
  88                 // fill sources information
  89                 for (i = 0; i < NbSourcesInfos; i++)
  90                 {
  91                         // get source filename without misguiding information
  92                         Ptr = DBGManager_GetNumSourceFilename(i);
  93                         Ptr1 = sourcesinfostab[i].Filename = (char *)malloc(strlen(Ptr) + 1);
  94                         while (((*Ptr == '.') || ((*Ptr == '/') || (*Ptr == '\\'))) && Ptr++);
  95                         strcpy(Ptr1, Ptr);
  96                         // get texts dedicated information
  97                         for (j = 0; j < 2; j++)
  98                         {
  99                                 sourcesinfostab[i].NbLinesText[j] = DBGManager_GetSrcNbListPtrFromIndex(i, j);
 100                         }
 101                         sourcesinfostab[i].NumLinesUsed = DBGManager_GetSrcNumLinesPtrFromIndex(i, true);
 102                         sourcesinfostab[i].SourceText = DBGManager_GetSrcListPtrFromIndex(i, false);
 103                         // get remaining information
 104                         sourcesinfostab[i].Language = DBGManager_GetSrcLanguageFromIndex(i);
 105                         sourcesinfostab[i].IndexTab = -1;
 106                 }
 107         }
 108         else
 109         {
 110                 // no source files exist
 111                 sourcesinfostab = NULL;
 112         }
 113 }
 114
 115
 116 // Get the tracing status
 117 bool SourcesWindow::GetTraceStatus(void)
 118 {
 119         if (NbSourcesInfos)
 120         {
 121                 switch (sourcesinfostab[CurrentTab].Language)
 122                 {
 123                 case DBG_LANG_VASM_Assembler:
 124                         break;
 125
 126                 default:
 127                         return true;
 128                         break;
 129                 }
 130         }
 131
 132         return false;
 133 }
 134
 135
 136 // Check if the line's number has changed across the tabs
 137 // Return true in case of the line is different, otherwise return false
 138 bool SourcesWindow::CheckChangeLine(void)
 139 {
 140         size_t NumLine;
 141
 142         // get the line number based on the current M68K PC address
 143         if (NumLine = DBGManager_GetNumLineFromAdr(m68k_get_reg(NULL, M68K_REG_PC), DBG_NO_TAG))
 144         {
 145                 if (OldCurrentTab == CurrentTab)
 146                 {
 147                         if (OldCurrentNumLineSrc != NumLine)
 148                         {
 149                                 OldCurrentNumLineSrc = NumLine;
 150                                 return true;
 151                         }
 152                 }
 153                 else
 154                 {
 155                         OldCurrentTab = CurrentTab;
 156                         OldCurrentNumLineSrc = 0;
 157                 }
 158         }
 159
 160         return false;
 161 }
 162
 163
 164 // Refresh tabs
 165 // Open a new tab for a file source code
 166 // Set a unique tab for unavailable source code
 167 void SourcesWindow::RefreshContents(void)
 168 {
 169         size_t m68kPC = m68k_get_reg(NULL, M68K_REG_PC);
 170         int index = 0;
 171         size_t i;
 172         DBGstatus Status;
 173         char *Filename;
 174
 175         // check valid M68K PC address
 176         if (m68kPC && NbSourcesInfos)
 177         {
 178                 // get source filename pointed by PC address
 179                 Filename = DBGManager_GetFullSourceFilenameFromAdr(m68kPC, &Status);
 180                 if (!Status && Filename)
 181                 {
 182                         // look for a new tab
 183                         for (i = 0; i < NbSourcesInfos; i++, !index)
 184                         {
 185                                 if (sourcesinfostab[i].Filename)
 186                                 {
 187                                         if (strstr(Filename, sourcesinfostab[i].Filename))
 188                                         {
 189                                                 // open a new tab for a source code
 190                                                 if (sourcesinfostab[i].IndexTab == -1)
 191                                                 {
 192                                                         sourcesinfostab[i].IndexTab = index = sourcestabWidget->addTab(sourcesinfostab[i].sourceCtab = new(SourceCWindow), tr(sourcesinfostab[i].Filename));
 193                                                         sourcesinfostab[i].sourceCtab->FillTab(i, sourcesinfostab[i].SourceText, sourcesinfostab[i].NbLinesText, sourcesinfostab[i].NumLinesUsed);
 194                                                 }
 195
 196                                                 sourcestabWidget->setCurrentIndex(sourcesinfostab[i].IndexTab);
 197                                                 sourcesinfostab[CurrentTab].sourceCtab->SetCursorTrace(sourcesinfostab[CurrentTab].CurrentNumLineSrc, true);
 198                                                 sourcesinfostab[i].sourceCtab->SetCursorTrace(sourcesinfostab[i].CurrentNumLineSrc = (int)DBGManager_GetNumLineFromAdr(m68kPC, DBG_NO_TAG), false);
 199                                                 sourcesinfostab[i].sourceCtab->RefreshContents();
 200                                                 CurrentTab = i;
 201                                         }
 202                                 }
 203                         }
 204                 }
 205                 else
 206                 {
 207                         // source file doesn't exist
 208                         if (indexErrorTab == -1)
 209                         {
 210                                 indexErrorTab = sourcestabWidget->addTab(sourceErrorTab = new(SourceCWindow), tr("Source file not available"));
 211                                 //sourceErrorTab->hide();
 212                         }
 213                         sourcestabWidget->setCurrentIndex(indexErrorTab);
 214                 }
 215         }
 216 }
 217
 218
 219 // Close / Remove current tab
 220 void SourcesWindow::CloseCurrentTab(void)
 221 {
 222         size_t i = 0;
 223         int Index;
 224         QString t = sourcestabWidget->tabText((Index = sourcestabWidget->currentIndex()));
 225
 226         // check error tab presence
 227         if (indexErrorTab == Index)
 228         {
 229                 // close the error tab
 230                 indexErrorTab = -1;
 231         }
 232         else
 233         {
 234                 // close source code text tab
 235                 while ((i < NbSourcesInfos) && strcmp(sourcesinfostab[i++].Filename, t.toLatin1().data()));
 236                 sourcesinfostab[(i - 1)].IndexTab = -1;
 237         }
 238
 239         // remove the tab
 240         sourcestabWidget->removeTab(Index);
 241 }
 242
 243
 244 // Handle keyboard
 245 void SourcesWindow::keyPressEvent(QKeyEvent * e)
 246 {
 247         // close/remove the current tab
 248         if (e->key() == Qt::Key_Escape)
 249         {
 250                 CloseCurrentTab();
 251         }
 252 }
 253
 254
 255 // Reset all source files tab
 256 void SourcesWindow::Reset(void)
 257 {
 258         // clear the tabs
 259         sourcestabWidget->clear();
 260
 261         // clear tab information
 262         while (NbSourcesInfos)
 263         {
 264                 free(sourcesinfostab[--NbSourcesInfos].Filename);
 265         }
 266         free(sourcesinfostab);
 267 }
 268
 269
 270 //
 271 void SourcesWindow::Close(void)
 272 {
 273         Reset();
 274 }