* $Id$
*******************************************************************/
-// ===========================================================================
+// ============================================================================
// declarations
-// ===========================================================================
+// ============================================================================
// ----------------------------------------------------------------------------
// headers
// ----------------------------------------------------------------------------
BEGIN_EVENT_TABLE(wxLayoutWindow,wxScrolledWindow)
+ EVT_SIZE (wxLayoutWindow::OnSize)
+
EVT_PAINT (wxLayoutWindow::OnPaint)
EVT_CHAR (wxLayoutWindow::OnChar)
EVT_KEY_UP (wxLayoutWindow::OnKeyUp)
- EVT_LEFT_DOWN(wxLayoutWindow::OnLeftMouseClick)
+ EVT_LEFT_DOWN(wxLayoutWindow::OnLeftMouseDown)
+ EVT_LEFT_UP(wxLayoutWindow::OnLeftMouseUp)
EVT_RIGHT_DOWN(wxLayoutWindow::OnRightMouseClick)
EVT_LEFT_DCLICK(wxLayoutWindow::OnMouseDblClick)
EVT_MOTION (wxLayoutWindow::OnMouseMove)
EVT_KILL_FOCUS(wxLayoutWindow::OnKillFocus)
END_EVENT_TABLE()
-// ===========================================================================
+// ----------------------------------------------------------------------------
+// function prototypes
+// ----------------------------------------------------------------------------
+
+/// returns TRUE if keyCode is one of arrows/home/end/page{up|down} keys
+static bool IsDirectionKey(long keyCode);
+
+// ============================================================================
// implementation
-// ===========================================================================
+// ============================================================================
/* LEAVE IT HERE UNTIL WXGTK WORKS AGAIN!!! */
#ifdef __WXGTK__
EnableScrolling(true, true);
m_maxx = max.x + X_SCROLL_PAGE;
m_maxy = max.y + Y_SCROLL_PAGE;
+
+ // no scrollbars initially (BTW, why then we do all the stuff above?)
+ m_hasHScrollbar =
+ m_hasVScrollbar = false;
+
m_Selecting = false;
#ifdef WXLAYOUT_USE_CARET
findPos.x -= WXLO_XOFFSET;
findPos.y -= WXLO_YOFFSET;
- if(findPos.x < 0) findPos.x = 0;
- if(findPos.y < 0) findPos.y = 0;
+ if(findPos.x < 0)
+ findPos.x = 0;
+ if(findPos.y < 0)
+ findPos.y = 0;
m_ClickPosition = wxPoint(event.GetX(), event.GetY());
&cursorPos, &found);
wxLayoutObject::UserData *u = obj ? obj->GetUserData() : NULL;
- //has the mouse only been moved?
- if(eventId == WXLOWIN_MENU_MOUSEMOVE)
+ // has the mouse only been moved?
+ switch ( eventId )
{
- // found is only true if we are really over an object, not just
- // behind it
- if(found && u && ! m_Selecting)
- {
- if(!m_HandCursor)
- SetCursor(wxCURSOR_HAND);
- m_HandCursor = TRUE;
- if(m_StatusBar && m_StatusFieldLabel != -1)
+ case WXLOWIN_MENU_MOUSEMOVE:
+ // found is only true if we are really over an object, not just
+ // behind it
+ if(found && u && ! m_Selecting)
{
- const wxString &label = u->GetLabel();
- if(label.Length())
- m_StatusBar->SetStatusText(label,
- m_StatusFieldLabel);
+ if(!m_HandCursor)
+ SetCursor(wxCURSOR_HAND);
+ m_HandCursor = TRUE;
+ if(m_StatusBar && m_StatusFieldLabel != -1)
+ {
+ const wxString &label = u->GetLabel();
+ if(label.Length())
+ m_StatusBar->SetStatusText(label,
+ m_StatusFieldLabel);
+ }
}
- }
- else
- {
- if(m_HandCursor)
- SetCursor(wxCURSOR_IBEAM);
- m_HandCursor = FALSE;
- if(m_StatusBar && m_StatusFieldLabel != -1)
- m_StatusBar->SetStatusText("", m_StatusFieldLabel);
- }
- if(event.LeftIsDown())
- {
- if(! m_Selecting)
+ else
{
- m_llist->StartSelection(wxPoint(-1, -1), m_ClickPosition);
- m_Selecting = true;
- DoPaint(); // TODO: we don't have to redraw everything!
+ if(m_HandCursor)
+ SetCursor(wxCURSOR_IBEAM);
+ m_HandCursor = FALSE;
+ if(m_StatusBar && m_StatusFieldLabel != -1)
+ m_StatusBar->SetStatusText("", m_StatusFieldLabel);
}
- else
+
+ // selecting?
+ if ( event.LeftIsDown() )
{
+ wxASSERT_MSG( m_Selecting, "should be set in OnMouseLeftDown" );
+
m_llist->ContinueSelection(cursorPos, m_ClickPosition);
DoPaint(); // TODO: we don't have to redraw everything!
}
- }
- if(m_Selecting && ! event.LeftIsDown())
- {
- m_llist->EndSelection(cursorPos, m_ClickPosition);
- m_Selecting = false;
- DoPaint(); // TODO: we don't have to redraw everything!
- }
- if ( u )
- {
- u->DecRef();
- u = NULL;
- }
- }
- else if(eventId == WXLOWIN_MENU_LCLICK)
- {
- // always move cursor to mouse click:
- m_llist->MoveCursorTo(cursorPos);
+ if ( u )
+ {
+ u->DecRef();
+ u = NULL;
+ }
+ break;
- // clicking a mouse removes the selection
- if ( m_llist->HasSelection() )
- {
- m_llist->DiscardSelection();
- DoPaint(); // TODO: we don't have to redraw everything!
- }
+ case WXLOWIN_MENU_LDOWN:
+ {
+ // always move cursor to mouse click:
+ m_llist->MoveCursorTo(cursorPos);
+
+ // clicking a mouse removes the selection
+ if ( m_llist->HasSelection() )
+ {
+ m_llist->DiscardSelection();
+ DoPaint(); // TODO: we don't have to redraw everything!
+ }
+
+ // Calculate where the top of the visible area is:
+ int x0, y0;
+ ViewStart(&x0,&y0);
+ int dx, dy;
+ GetScrollPixelsPerUnit(&dx, &dy);
+ x0 *= dx; y0 *= dy;
+
+ wxPoint offset(-x0+WXLO_XOFFSET, -y0+WXLO_YOFFSET);
+
+ if(m_CursorVisibility == -1)
+ m_CursorVisibility = 1;
+
+ if(m_CursorVisibility != 0)
+ {
+ // draw a thick cursor for editable windows with focus
+ m_llist->DrawCursor(dc, m_HaveFocus && IsEditable(), offset);
+ }
+
+ // VZ: this should be unnecessary because mouse can only click on a
+ // visible part of the canvas
+#if 0
+ ScrollToCursor();
+#endif // 0
- // Calculate where the top of the visible area is:
- int x0, y0;
- ViewStart(&x0,&y0);
- int dx, dy;
- GetScrollPixelsPerUnit(&dx, &dy);
- x0 *= dx; y0 *= dy;
+#ifdef __WXGTK__
+ DoPaint(); // DoPaint suppresses flicker under GTK
+#endif // wxGTK
- wxPoint offset(-x0+WXLO_XOFFSET, -y0+WXLO_YOFFSET);
+ // start selection
+ m_llist->StartSelection(wxPoint(-1, -1), m_ClickPosition);
+ m_Selecting = true;
+ }
+ break;
- if(m_CursorVisibility == -1)
- m_CursorVisibility = 1;
+ case WXLOWIN_MENU_LUP:
+ if ( m_Selecting )
+ {
+ m_llist->EndSelection();
+ m_Selecting = false;
- if(m_CursorVisibility != 0)
- {
- // draw a thick cursor for editable windows with focus
- m_llist->DrawCursor(dc, m_HaveFocus && IsEditable(), offset);
- }
+ DoPaint(); // TODO: we don't have to redraw everything!
+ }
+ break;
- // VZ: this should be unnecessary because mouse can only click on a
- // visible part of the canvas
-#if 0
- ScrollToCursor();
-#endif // 0
+ case WXLOWIN_MENU_RCLICK:
+ // remove the selection if mouse click is outside it (TODO)
+ break;
-#ifdef __WXGTK__
- DoPaint(); // DoPaint suppresses flicker under GTK
-#endif // wxGTK
+ case WXLOWIN_MENU_DBLCLICK:
+ // select a word under cursor
+ m_llist->MoveCursorTo(cursorPos);
+ m_llist->MoveCursorWord(-1);
+ m_llist->StartSelection();
+ m_llist->MoveCursorWord(1, false);
+ m_llist->EndSelection();
+
+ DoPaint(); // TODO: we don't have to redraw everything!
+ break;
}
// notify about mouse events?
u->DecRef();
}
-/*
- * Some simple keyboard handling.
- */
+// ----------------------------------------------------------------------------
+// keyboard handling.
+// ----------------------------------------------------------------------------
+
void
wxLayoutWindow::OnChar(wxKeyEvent& event)
{
}
#endif
- if(! m_Selecting && event.ShiftDown())
+ wxASSERT_MSG( !m_Selecting || event.ShiftDown(),
+ "m_Selecting is normally reset in OnKeyUp() when Shift "
+ "goes up!" );
+
+ if ( !m_Selecting && m_llist->HasSelection() )
{
- switch(keyCode)
+ // pressing any non-arrow key replaces the selection
+ if ( !IsDirectionKey(keyCode) )
+ {
+ m_llist->DeleteSelection();
+ }
+ else if ( !event.ShiftDown() )
+ {
+ m_llist->DiscardSelection();
+ }
+ }
+
+ // <Shift>+<arrow> starts selection
+ if ( event.ShiftDown() && IsDirectionKey(keyCode) )
+ {
+ if ( !m_Selecting )
{
- case WXK_UP:
- case WXK_DOWN:
- case WXK_RIGHT:
- case WXK_LEFT:
- case WXK_PRIOR:
- case WXK_NEXT:
- case WXK_HOME:
- case WXK_END:
m_Selecting = true;
m_llist->StartSelection();
- break;
- default:
- ;
}
+ //else: just continue the old selection
}
// If needed, make cursor visible:
m_llist->Delete(1);
break;
case WXK_BACK: // backspace
- if(m_llist->MoveCursorHorizontally(-1)) m_llist->Delete(1);
+ if(m_llist->MoveCursorHorizontally(-1))
+ m_llist->Delete(1);
break;
case WXK_RETURN:
if(m_WrapMargin > 0)
SetModified();
}// if(IsEditable())
}// first switch()
- if(m_Selecting)
+
+ if ( m_Selecting )
{
- if(event.ShiftDown())
- m_llist->ContinueSelection();
- else
- {
- m_llist->EndSelection();
- m_Selecting = false;
- }
+ // continue selection to the current (new) cursor position
+ m_llist->ContinueSelection();
}
// we must call ResizeScrollbars() before ScrollToCursor(), otherwise the
void
wxLayoutWindow::OnKeyUp(wxKeyEvent& event)
{
- if(event.KeyCode() == WXK_SHIFT && m_llist->IsSelecting())
+ if ( event.KeyCode() == WXK_SHIFT && m_Selecting )
{
m_llist->EndSelection();
m_Selecting = false;
}
+
event.Skip();
}
void
wxLayoutWindow::DoPaint(const wxRect *updateRect)
{
- // Causes bad flicker under wxGTK!!!
#ifdef __WXGTK__
InternalPaint(updateRect);
-#else
+#else // Causes bad flicker under wxGTK!!!
Refresh(FALSE); //, updateRect);
if ( !::UpdateWindow(GetHwnd()) )
}
}
+void
+wxLayoutWindow::OnSize(wxSizeEvent &event)
+{
+ ResizeScrollbars();
+
+ event.Skip();
+}
+
// change the range and position of scrollbars
void
wxLayoutWindow::ResizeScrollbars(bool exact)
{
wxPoint max = m_llist->GetSize();
+ wxSize size = GetClientSize();
WXLO_DEBUG(("ResizeScrollbars: max size = (%ld, %ld)",
(long int)max.x, (long int) max.y));
+ // in the absence of scrollbars we should compare with the client size
+ if ( !m_hasHScrollbar )
+ m_maxx = size.x - WXLO_ROFFSET;
+ if ( !m_hasVScrollbar )
+ m_maxy = size.y - WXLO_BOFFSET;
+
+ // check if the text hasn't become too big
+ // TODO why do we set both at once? they're independent...
if( max.x > m_maxx - WXLO_ROFFSET || max.y > m_maxy - WXLO_BOFFSET || exact )
{
+ // text became too large
if ( !exact )
{
// add an extra bit to the sizes to avoid future updates
m_ViewStartX, m_ViewStartY,
true);
+ m_hasHScrollbar =
+ m_hasVScrollbar = true;
+
m_maxx = max.x + X_SCROLL_PAGE;
m_maxy = max.y + Y_SCROLL_PAGE;
}
+ else
+ {
+ // check if the window hasn't become too big, thus making the scrollbars
+ // unnecessary
+ if ( m_hasHScrollbar && (max.x < size.x) )
+ {
+ // remove the horizontal scrollbar
+ SetScrollbars(0, -1, 0, -1, 0, -1, true);
+ m_hasHScrollbar = false;
+ }
+
+ if ( m_hasVScrollbar && (max.y < size.y) )
+ {
+ // remove the vertical scrollbar
+ SetScrollbars(-1, 0, -1, 0, -1, 0, true);
+ m_hasVScrollbar = false;
+ }
+ }
}
+// ----------------------------------------------------------------------------
+// clipboard operations
+// ----------------------------------------------------------------------------
+
void
wxLayoutWindow::Paste(void)
{
else
return FALSE;
}
+
+// ----------------------------------------------------------------------------
+// searching
+// ----------------------------------------------------------------------------
+
bool
wxLayoutWindow::Find(const wxString &needle,
wxPoint * fromWhere)
return false;
}
+// ----------------------------------------------------------------------------
+// popup menu stuff
+// ----------------------------------------------------------------------------
+
wxMenu *
wxLayoutWindow::MakeFormatMenu()
{
}
}
+// ----------------------------------------------------------------------------
+// focus
+// ----------------------------------------------------------------------------
+
void
wxLayoutWindow::OnSetFocus(wxFocusEvent &ev)
{
m_HaveFocus = false;
ev.Skip();
}
+
+// ----------------------------------------------------------------------------
+// private functions
+// ----------------------------------------------------------------------------
+
+static bool IsDirectionKey(long keyCode)
+{
+ switch(keyCode)
+ {
+ case WXK_UP:
+ case WXK_DOWN:
+ case WXK_RIGHT:
+ case WXK_LEFT:
+ case WXK_PRIOR:
+ case WXK_NEXT:
+ case WXK_HOME:
+ case WXK_END:
+ return true;
+
+ default:
+ return false;
+ }
+}
projects / wxWidgets.git / blobdiff