| -rw-r--r-- | noncore/apps/opie-reader/Navigation.cpp | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/noncore/apps/opie-reader/Navigation.cpp b/noncore/apps/opie-reader/Navigation.cpp index 7b392ba..4f11887 100644 --- a/noncore/apps/opie-reader/Navigation.cpp +++ b/noncore/apps/opie-reader/Navigation.cpp @@ -1,50 +1,52 @@ #include "Navigation.h" +#include <string.h> + void CNavigation::saveposn(size_t posn) { // qDebug("Saved:%u [%u,%u,%u]", posn, historystart, historycurrent, historyend); historycurrent = historyend = (historycurrent+1)%NAVIGATION_HISTORY_SIZE; history[historycurrent] = posn; if (historystart == historyend) historystart = (historystart+1)%NAVIGATION_HISTORY_SIZE; // qDebug("Saved:%u [%u,%u,%u]", posn, historystart, historycurrent, historyend); } bool CNavigation::forward(size_t& loc) { if (historycurrent != historyend) { historycurrent = (historycurrent + 1)%NAVIGATION_HISTORY_SIZE; loc = history[historycurrent]; // qDebug("Forward:%u [%u,%u,%u]", loc, historystart, historycurrent, historyend); return true; } else { return false; } } bool CNavigation::back(size_t& loc) { if (historyend != historystart) { // qDebug("Back:%u [%u,%u,%u]", loc, historystart, historycurrent, historyend); if (historycurrent == historyend && history[historycurrent] != loc) { historyend = (historyend+1) % NAVIGATION_HISTORY_SIZE; history[historyend] = loc; } else { size_t sv = historycurrent; historycurrent = (historycurrent + NAVIGATION_HISTORY_SIZE - 1) % NAVIGATION_HISTORY_SIZE; if (historycurrent == historystart) { historycurrent = sv; return false; } } loc = history[historycurrent]; // qDebug("Back:%u [%u,%u,%u]", loc, historystart, historycurrent, historyend); return true; } |