+
+/** Tests whether this layout line is selected and needs
+ highlighting.
+ @param line to test for
+ @return 0 = not selected, 1 = fully selected, -1 = partially
+ selected
+ */
+int
+wxLayoutList::IsSelected(const wxLayoutLine *line, CoordType *from,
+ CoordType *to)
+{
+ wxASSERT(line); wxASSERT(to); wxASSERT(from);
+
+ if(! m_Selection.m_valid && ! m_Selection.m_selecting)
+ return 0;
+
+ CoordType y = line->GetLineNumber();
+ if(m_Selection.m_CursorA.y < y && m_Selection.m_CursorB.y > y)
+ return 1;
+ else if(m_Selection.m_CursorA.y == y)
+ {
+ *from = m_Selection.m_CursorA.x;
+ if(m_Selection.m_CursorB.y == y)
+ *to = m_Selection.m_CursorB.x;
+ else
+ *to = line->GetLength();
+ return -1;
+ }
+ else if(m_Selection.m_CursorB.y == y)
+ {
+ *to = m_Selection.m_CursorB.x;
+ if(m_Selection.m_CursorA.y == y)
+ *from = m_Selection.m_CursorA.x;
+ else
+ *from = 0;
+ return -1;
+ }
+ else
+ return 0;
+}
+
+void
+wxLayoutList::DeleteSelection(void)
+{
+ if(! m_Selection.m_valid)
+ return;
+
+ m_Selection.m_valid = false;
+
+ // Only delete part of the current line?
+ if(m_Selection.m_CursorA.y == m_Selection.m_CursorB.y)
+ {
+ MoveCursorTo(m_Selection.m_CursorA);
+ Delete(m_Selection.m_CursorB.x - m_Selection.m_CursorA.x);
+ return;
+ }
+
+
+ wxLayoutLine
+ * firstLine = NULL,
+ * lastLine = NULL;
+
+ for(firstLine = m_FirstLine;
+ firstLine && firstLine->GetLineNumber() < m_Selection.m_CursorA.y;
+ firstLine=firstLine->GetNextLine())
+ ;
+ if(!firstLine || firstLine->GetLineNumber() != m_Selection.m_CursorA.y)
+ return;
+
+
+ for(lastLine = m_FirstLine;
+ lastLine && lastLine->GetLineNumber() < m_Selection.m_CursorB.y;
+ lastLine=lastLine->GetNextLine())
+ ;
+ if(!lastLine || lastLine->GetLineNumber() != m_Selection.m_CursorB.y)
+ return;
+
+
+ // We now know that the two lines are different:
+
+ // First, delete what's left of this line:
+ MoveCursorTo(m_Selection.m_CursorA);
+ DeleteToEndOfLine();
+
+ wxLayoutLine *nextLine = firstLine->GetNextLine();
+ while(nextLine && nextLine != lastLine)
+ nextLine = nextLine->DeleteLine(false, this);
+
+ // Now nextLine = lastLine;
+ Delete(1); // This joins firstLine and nextLine
+ Delete(m_Selection.m_CursorB.x); // This deletes the first x
+ // positions
+
+ /// Recalculate:
+ firstLine->RecalculatePositions(1, this);
+}
+
+/// Starts highlighting the selection
+void
+wxLayoutList::StartHighlighting(wxDC &dc)
+{
+#if SHOW_SELECTIONS
+ dc.SetTextForeground(m_CurrentSetting.m_bg);
+ dc.SetTextBackground(m_CurrentSetting.m_fg);
+#endif
+}
+
+/// Ends highlighting the selection
+void
+wxLayoutList::EndHighlighting(wxDC &dc)
+{
+#if SHOW_SELECTIONS
+ dc.SetTextForeground(m_CurrentSetting.m_fg);
+ dc.SetTextBackground(m_CurrentSetting.m_bg);
+#endif
+}
+
+
+wxLayoutList *
+wxLayoutList::Copy(const wxPoint &from,
+ const wxPoint &to)
+{
+ wxLayoutLine
+ * firstLine = NULL,
+ * lastLine = NULL;
+
+ for(firstLine = m_FirstLine;
+ firstLine && firstLine->GetLineNumber() < from.y;
+ firstLine=firstLine->GetNextLine())
+ ;
+ if(!firstLine || firstLine->GetLineNumber() != from.y)
+ return NULL;
+
+ for(lastLine = m_FirstLine;
+ lastLine && lastLine->GetLineNumber() < to.y;
+ lastLine=lastLine->GetNextLine())
+ ;
+ if(!lastLine || lastLine->GetLineNumber() != to.y)
+ return NULL;
+
+ if(to <= from)
+ {
+ wxLayoutLine *tmp = firstLine;
+ firstLine = lastLine;
+ lastLine = tmp;
+ }
+
+ wxLayoutList *llist = new wxLayoutList();
+
+ if(firstLine == lastLine)
+ {
+ firstLine->Copy(llist, from.x, to.x);
+ }
+ else
+ {
+ // Extract objects from first line
+ firstLine->Copy(llist, from.x);
+ llist->LineBreak();
+ // Extract all lines between
+ for(wxLayoutLine *line = firstLine->GetNextLine();
+ line != lastLine;
+ line = line->GetNextLine())
+ {
+ line->Copy(llist);
+ llist->LineBreak();
+ }
+ // Extract objects from last line
+ lastLine->Copy(llist, 0, to.x);
+ }
+ return llist;
+}
+
+wxLayoutList *
+wxLayoutList::GetSelection(void)
+{
+ if(! m_Selection.m_valid)
+ {
+ if(m_Selection.m_selecting)
+ EndSelection();
+ else
+ return NULL;
+ }
+
+ m_Selection.m_valid = false;
+ return Copy( m_Selection.m_CursorA, m_Selection.m_CursorB );
+}
+
+
+
+#define COPY_SI(what) if(si->what != -1) { m_CurrentSetting.what = si->what; fontChanged = TRUE; }
+
+void
+wxLayoutList::ApplyStyle(wxLayoutStyleInfo *si, wxDC &dc)
+{
+ bool fontChanged = FALSE;
+ COPY_SI(family);
+ COPY_SI(size);
+ COPY_SI(style);
+ COPY_SI(weight);
+ COPY_SI(underline);
+ if(fontChanged)
+ dc.SetFont( m_FontCache.GetFont(m_CurrentSetting) );
+
+ if(si->m_fg_valid)
+ {
+ m_CurrentSetting.m_fg = si->m_fg;
+ dc.SetTextForeground(m_CurrentSetting.m_fg);
+ }
+ if(si->m_bg_valid)
+ {
+ m_CurrentSetting.m_bg = si->m_bg;
+ dc.SetTextBackground(m_CurrentSetting.m_bg);
+ }
+}
+
+
projects / wxWidgets.git / blobdiff