m_yScrollLinesPerPage = 0;
m_scaleX = 1.0;
m_scaleY = 1.0;
+ m_targetWindow = (wxWindow*) NULL;
}
bool wxScrolledWindow::Create(wxWindow *parent,
m_targetWindow = this;
- // we need wxWANTS_CHARS to process arrows ourselves
- return wxPanel::Create(parent, id, pos, size, style | wxWANTS_CHARS, name);
+ bool ok = wxPanel::Create(parent, id, pos, size, style, name);
+
+#ifdef __WXMSW__
+ // we need to process arrows ourselves for scrolling
+ m_lDlgCode |= DLGC_WANTARROWS;
+#endif // __WXMSW__
+
+ return ok;
}
wxScrolledWindow::~wxScrolledWindow()
int noUnitsX, int noUnitsY,
int xPos, int yPos, bool noRefresh )
{
+ int xpos, ypos;
+
+ CalcUnscrolledPosition(xPos, yPos, &xpos, &ypos);
bool do_refresh =
(
(noUnitsX != 0 && m_xScrollLines == 0) ||
- (noUnitsX < m_xScrollLines) ||
+ (noUnitsX < m_xScrollLines && xpos > pixelsPerUnitX*noUnitsX) ||
+
(noUnitsY != 0 && m_yScrollLines == 0) ||
- (noUnitsY < m_yScrollLines) ||
+ (noUnitsY < m_yScrollLines && ypos > pixelsPerUnitY*noUnitsY) ||
(xPos != m_xScrollPosition) ||
- (yPos != m_yScrollPosition) ||
- (pixelsPerUnitX != m_xScrollPixelsPerLine) ||
- (pixelsPerUnitY != m_yScrollPixelsPerLine)
+ (yPos != m_yScrollPosition)
+// (pixelsPerUnitX != m_xScrollPixelsPerLine) ||
+// (pixelsPerUnitY != m_yScrollPixelsPerLine)
);
m_xScrollPixelsPerLine = pixelsPerUnitX;
m_targetWindow->ScrollWindow(0, -m_yScrollPixelsPerLine * nScrollInc, (const wxRect *) NULL);
else
m_targetWindow->Refresh();
- }
+ }
#ifdef __WXMAC__
m_targetWindow->MacUpdateImmediately() ;
#endif
break;
}
case wxEVT_SCROLLWIN_THUMBTRACK:
+ case wxEVT_SCROLLWIN_THUMBRELEASE:
{
if (orient == wxHORIZONTAL)
nScrollInc = pos - m_xScrollPosition;
if (m_xScrollLines > 0)
{
- // Calculate page size i.e. number of scroll units you get on the
- // current client window
+ // Calculate page size i.e. number of scroll units you get on the
+ // current client window
int noPagePositions = (int) ( (w/(double)m_xScrollPixelsPerLine) + 0.5 );
if (noPagePositions < 1) noPagePositions = 1;
// Correct position if greater than extent of canvas minus
- // the visible portion of it or if below zero
- m_xScrollPosition = wxMin( m_xScrollLines-noPagePositions, m_xScrollPosition);
+ // the visible portion of it or if below zero
+ m_xScrollPosition = wxMin( m_xScrollLines-noPagePositions, m_xScrollPosition);
m_xScrollPosition = wxMax( 0, m_xScrollPosition );
SetScrollbar(wxHORIZONTAL, m_xScrollPosition, noPagePositions, m_xScrollLines);
if (m_yScrollLines > 0)
{
- // Calculate page size i.e. number of scroll units you get on the
- // current client window
+ // Calculate page size i.e. number of scroll units you get on the
+ // current client window
int noPagePositions = (int) ( (h/(double)m_yScrollPixelsPerLine) + 0.5 );
if (noPagePositions < 1) noPagePositions = 1;
// Correct position if greater than extent of canvas minus
- // the visible portion of it or if below zero
+ // the visible portion of it or if below zero
m_yScrollPosition = wxMin( m_yScrollLines-noPagePositions, m_yScrollPosition );
m_yScrollPosition = wxMax( 0, m_yScrollPosition );
*/
void wxScrolledWindow::Scroll( int x_pos, int y_pos )
{
+ if (!m_targetWindow)
+ return;
+
if (((x_pos == -1) || (x_pos == m_xScrollPosition)) &&
((y_pos == -1) || (y_pos == m_yScrollPosition))) return;
int w, h;
m_targetWindow->GetClientSize(&w, &h);
- if (x_pos != -1)
+ if ((x_pos != -1) && (m_xScrollPixelsPerLine))
{
int old_x = m_xScrollPosition;
m_xScrollPosition = x_pos;
- // Calculate page size i.e. number of scroll units you get on the
- // current client window
+ // Calculate page size i.e. number of scroll units you get on the
+ // current client window
int noPagePositions = (int) ( (w/(double)m_xScrollPixelsPerLine) + 0.5 );
if (noPagePositions < 1) noPagePositions = 1;
// Correct position if greater than extent of canvas minus
- // the visible portion of it or if below zero
+ // the visible portion of it or if below zero
m_xScrollPosition = wxMin( m_xScrollLines-noPagePositions, m_xScrollPosition );
m_xScrollPosition = wxMax( 0, m_xScrollPosition );
- m_targetWindow->SetScrollPos( wxHORIZONTAL, m_xScrollPosition, TRUE );
-
+ if (old_x != m_xScrollPosition) {
+ m_targetWindow->SetScrollPos( wxHORIZONTAL, m_xScrollPosition, TRUE );
m_targetWindow->ScrollWindow( (old_x-m_xScrollPosition)*m_xScrollPixelsPerLine, 0 );
+ }
}
- if (y_pos != -1)
+ if ((y_pos != -1) && (m_yScrollPixelsPerLine))
{
int old_y = m_yScrollPosition;
m_yScrollPosition = y_pos;
- // Calculate page size i.e. number of scroll units you get on the
- // current client window
+ // Calculate page size i.e. number of scroll units you get on the
+ // current client window
int noPagePositions = (int) ( (h/(double)m_yScrollPixelsPerLine) + 0.5 );
if (noPagePositions < 1) noPagePositions = 1;
// Correct position if greater than extent of canvas minus
- // the visible portion of it or if below zero
+ // the visible portion of it or if below zero
m_yScrollPosition = wxMin( m_yScrollLines-noPagePositions, m_yScrollPosition );
m_yScrollPosition = wxMax( 0, m_yScrollPosition );
-
- m_targetWindow->SetScrollPos( wxVERTICAL, m_yScrollPosition, TRUE );
-
- m_targetWindow->ScrollWindow( 0, (old_y-m_yScrollPosition)*m_yScrollPixelsPerLine );
+
+ if (old_y != m_yScrollPosition) {
+ m_targetWindow->SetScrollPos( wxVERTICAL, m_yScrollPosition, TRUE );
+ m_targetWindow->ScrollWindow( 0, (old_y-m_yScrollPosition)*m_yScrollPixelsPerLine );
+ }
}
-
#ifdef __WXMAC__
- m_targetWindow->MacUpdateImmediately() ;
+ m_targetWindow->MacUpdateImmediately();
#endif
}
// this they always have the priority
void wxScrolledWindow::OnChar(wxKeyEvent& event)
{
- if ( !m_xScrollPixelsPerLine || !m_yScrollPixelsPerLine )
- {
- // stop now - no scroll line size
- event.Skip();
-
- return;
- }
-
int stx, sty, // view origin
szx, szy, // view size (total)
clix, cliy; // view size (on screen)
ViewStart(&stx, &sty);
GetClientSize(&clix, &cliy);
- clix /= m_xScrollPixelsPerLine;
- cliy /= m_yScrollPixelsPerLine;
GetVirtualSize(&szx, &szy);
- szx /= m_xScrollPixelsPerLine;
- szy /= m_yScrollPixelsPerLine;
+ if( m_xScrollPixelsPerLine )
+ {
+ clix /= m_xScrollPixelsPerLine;
+ szx /= m_xScrollPixelsPerLine;
+ }
+ else
+ {
+ clix = 0;
+ szx = -1;
+ }
+ if( m_yScrollPixelsPerLine )
+ {
+ cliy /= m_yScrollPixelsPerLine;
+ szy /= m_yScrollPixelsPerLine;
+ }
+ else
+ {
+ cliy = 0;
+ szy = -1;
+ }
+
+ int dsty;
switch ( event.KeyCode() )
{
case WXK_PAGEUP:
case WXK_PRIOR:
- Scroll(-1, sty - (5 * cliy / 6));
+ dsty = sty - (5 * cliy / 6);
+ Scroll(-1, (dsty == -1) ? 0 : dsty);
break;
case WXK_PAGEDOWN:
Scroll(-1, sty + (5 * cliy / 6));
break;
- // notice that handling of Ctrl-Home/End is asymmetrical: Home goes to
- // the beginning of the current line, Ctrl-Home returns to the origin
- // while End goes to the bottom without changing horizontal position
- // and only Ctrl-End does go to the most rightmost position as well
case WXK_HOME:
Scroll(0, event.ControlDown() ? 0 : -1);
break;
case WXK_END:
- Scroll(event.ControlDown() ? szx - clix : -1, szy - cliy);
+ Scroll(szx - clix, event.ControlDown() ? szy - cliy : -1);
break;
case WXK_UP:
projects / wxWidgets.git / blobdiff