kdbg/threadlist.cpp

   1 // $Id$
   2
   3 // Copyright by Johannes Sixt
   4 // This file is under GPL, the GNU General Public Licence
   5
   6 #include "threadlist.h"
   7 #include "dbgdriver.h"
   8 #include <klocale.h>
   9 #include <kiconloader.h>
  10 #include <qbitmap.h>
  11 #include <qpainter.h>
  12
  13
  14 class ThreadEntry : public QListViewItem, public ThreadInfo
  15 {
  16 public:
  17     ThreadEntry(QListView* parent, ThreadInfo* thread);
  18     void setFunction(const QString& func);
  19
  20     bool m_delete;                      /* used for updating the list */
  21 };
  22
  23 ThreadEntry::ThreadEntry(QListView* parent, ThreadInfo* thread) :
  24         QListViewItem(parent, thread->threadName, thread->function),
  25         ThreadInfo(*thread),
  26         m_delete(false)
  27 {
  28 }
  29
  30 void ThreadEntry::setFunction(const QString& func)
  31 {
  32     function = func;
  33     setText(1, function);
  34 }
  35
  36
  37 ThreadList::ThreadList(QWidget* parent, const char* name) :
  38         QListView(parent, name)
  39 {
  40     addColumn(i18n("Thread ID"), 150);
  41     addColumn(i18n("Location"));
  42
  43     // load pixmaps
  44     m_focusIcon = UserIcon("pcinner");
  45     makeNoFocusIcon();
  46
  47     connect(this, SIGNAL(currentChanged(QListViewItem*)),
  48             this, SLOT(slotCurrentChanged(QListViewItem*)));
  49 }
  50
  51 ThreadList::~ThreadList()
  52 {
  53 }
  54
  55 void ThreadList::updateThreads(QList<ThreadInfo>& threads)
  56 {
  57     // reset flag in all items
  58     for (QListViewItem* e = firstChild(); e != 0; e = e->nextSibling()) {
  59         static_cast<ThreadEntry*>(e)->m_delete = true;
  60     }
  61
  62     for (ThreadInfo* i = threads.first(); i != 0; i = threads.next()) {
  63         // look up this thread by id
  64         ThreadEntry* te = threadById(i->id);
  65         if (te == 0) {
  66             te = new ThreadEntry(this, i);
  67         } else {
  68             te->m_delete = false;
  69             te->setFunction(i->function);
  70         }
  71         // set focus icon
  72         te->hasFocus = i->hasFocus;
  73         te->setPixmap(0, i->hasFocus  ?  m_focusIcon  :  m_noFocusIcon);
  74     }
  75
  76     // delete all entries that have not been seen
  77     for (QListViewItem* e = firstChild(); e != 0;) {
  78         ThreadEntry* te = static_cast<ThreadEntry*>(e);
  79         e = e->nextSibling();           /* step ahead before deleting it ;-) */
  80         if (te->m_delete) {
  81             delete te;
  82         }
  83     }
  84 }
  85
  86 ThreadEntry* ThreadList::threadById(int id)
  87 {
  88     for (QListViewItem* e = firstChild(); e != 0; e = e->nextSibling()) {
  89         ThreadEntry* te = static_cast<ThreadEntry*>(e);
  90         if (te->id == id) {
  91             return te;
  92         }
  93     }
  94     return 0;
  95 }
  96
  97 /*
  98  * Creates an icon of the same size as the m_focusIcon, but which is
  99  * totally transparent.
 100  */
 101 void ThreadList::makeNoFocusIcon()
 102 {
 103     m_noFocusIcon = m_focusIcon;
 104     {
 105         QPainter p(&m_noFocusIcon);
 106         p.fillRect(0,0, m_noFocusIcon.width(),m_noFocusIcon.height(), QColor(white));
 107     }
 108     m_noFocusIcon.setMask(m_noFocusIcon.createHeuristicMask());
 109 }
 110
 111 void ThreadList::slotCurrentChanged(QListViewItem* newItem)
 112 {
 113     if (newItem == 0)
 114         return;
 115
 116     ThreadEntry* te = static_cast<ThreadEntry*>(newItem);
 117
 118     // change the focused thread
 119     if (te->hasFocus)
 120         return;
 121
 122     emit setThread(te->id);
 123 }
 124
 125
 126 #include "threadlist.moc"