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wxWidgets/user/wxLayout/wxlwindow.cpp
Karsten Ballüder deb907884a fixes 
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@1013 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
1998-11-19 20:34:59 +00:00

371 lines
9.2 KiB
C++
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/*-*- c++ -*-********************************************************
* wxLwindow.h : a scrolled Window for displaying/entering rich text*
* *
* (C) 1998 by Karsten Ballüder (Ballueder@usa.net) *
* *
* $Id$
*******************************************************************/
#ifdef __GNUG__
# pragma implementation "wxlwindow.h"
#endif
//#include "Mpch.h"
#ifdef M_BASEDIR
# ifndef USE_PCH
# include "Mcommon.h"
# include "gui/wxMenuDefs.h"
# endif // USE_PCH
# include "gui/wxlwindow.h"
#else
# ifdef __WXMSW__
# include <windows.h>
# undef FindWindow
# undef GetCharWidth
# undef StartDoc
# endif
# include "wxlwindow.h"
# define TRACEMESSAGE(x)
#endif
# define WXL_VAR(x) cerr << #x " = " << x ;
BEGIN_EVENT_TABLE(wxLayoutWindow,wxScrolledWindow)
EVT_PAINT (wxLayoutWindow::OnPaint)
EVT_CHAR (wxLayoutWindow::OnChar)
EVT_LEFT_DOWN(wxLayoutWindow::OnLeftMouseClick)
EVT_RIGHT_DOWN(wxLayoutWindow::OnRightMouseClick)
EVT_LEFT_DCLICK(wxLayoutWindow::OnMouseDblClick)
EVT_MENU(WXLOWIN_MENU_LARGER, wxLayoutWindow::OnMenu)
EVT_MENU(WXLOWIN_MENU_SMALLER, wxLayoutWindow::OnMenu)
EVT_MENU(WXLOWIN_MENU_UNDERLINE, wxLayoutWindow::OnMenu)
EVT_MENU(WXLOWIN_MENU_BOLD, wxLayoutWindow::OnMenu)
EVT_MENU(WXLOWIN_MENU_ITALICS, wxLayoutWindow::OnMenu)
EVT_MENU(WXLOWIN_MENU_ROMAN, wxLayoutWindow::OnMenu)
EVT_MENU(WXLOWIN_MENU_TYPEWRITER, wxLayoutWindow::OnMenu)
EVT_MENU(WXLOWIN_MENU_SANSSERIF, wxLayoutWindow::OnMenu)
END_EVENT_TABLE()
wxLayoutWindow::wxLayoutWindow(wxWindow *parent)
: wxScrolledWindow(parent, -1, wxDefaultPosition, wxDefaultSize,
wxHSCROLL | wxVSCROLL | wxBORDER)
{
m_ScrollbarsSet = false;
m_doSendEvents = false;
m_ViewStartX = 0; m_ViewStartY = 0;
m_DoPopupMenu = true;
m_PopupMenu = NULL;
CoordType
max_x, max_y, lineHeight;
m_llist.GetSize(&max_x, &max_y, &lineHeight);
SetScrollbars(10, lineHeight, max_x/10+1, max_y/lineHeight+1);
EnableScrolling(true,true);
}
#ifdef __WXMSW__
long
wxLayoutWindow::MSWGetDlgCode()
{
// if we don't return this, we won't get OnChar() events
return DLGC_WANTCHARS | DLGC_WANTARROWS | DLGC_WANTMESSAGE;
}
#endif //MSW
void
wxLayoutWindow::Update(void)
{
wxClientDC dc(this);
PrepareDC(dc);
if(IsDirty())
{
DoPaint(dc);
UpdateScrollbars();
ResetDirty();
}
m_llist.DrawCursor(dc);
}
void
wxLayoutWindow::OnMouse(int eventId, wxMouseEvent& event)
{
if(!m_doSendEvents) // nothing to do
return;
wxPaintDC dc( this );
PrepareDC( dc );
SetFocus();
wxPoint findPos;
findPos.x = dc.DeviceToLogicalX(event.GetX());
findPos.y = dc.DeviceToLogicalY(event.GetY());
TRACEMESSAGE(("wxLayoutWindow::OnMouse: (%d, %d) -> (%d, %d)",
event.GetX(), event.GetY(), findPos.x, findPos.y));
if(eventId == WXLOWIN_MENU_RCLICK && m_DoPopupMenu && m_llist.IsEditable())
{
// when does this menu get freed?
// how do we handle toggling? FIXME
PopupMenu(MakeFormatMenu(), event.GetX(), event.GetY());
return;
}
// find the object at this position
wxLayoutObjectBase *obj = m_llist.Find(findPos);
if(obj)
{
wxCommandEvent commandEvent(wxEVENT_TYPE_MENU_COMMAND, eventId);
commandEvent.SetEventObject( this );
commandEvent.SetClientData((char *)obj);
GetEventHandler()->ProcessEvent(commandEvent);
}
}
/*
* some simple keyboard handling
*/
void
wxLayoutWindow::OnChar(wxKeyEvent& event)
{
if(! m_llist.IsEditable()) // do nothing
{
event.Skip();
return;
}
long keyCode = event.KeyCode();
wxPoint p;
CoordType help;
switch(event.KeyCode())
{
case WXK_RIGHT:
m_llist.MoveCursor(1);
break;
case WXK_LEFT:
m_llist.MoveCursor(-1);
break;
case WXK_UP:
m_llist.MoveCursor(0,-1);
break;
case WXK_DOWN:
m_llist.MoveCursor(0,1);
break;
case WXK_PRIOR:
m_llist.MoveCursor(0,-20);
break;
case WXK_NEXT:
m_llist.MoveCursor(0,20);
break;
case WXK_HOME:
p = m_llist.GetCursor();
p.x = 0;
m_llist.SetCursor(p);
break;
case WXK_END:
p = m_llist.GetCursor();
p.x = m_llist.GetLineLength(m_llist.GetCurrentObject());
m_llist.SetCursor(p);
break;
case WXK_DELETE :
if(event.ControlDown()) // delete to end of line
{
help = m_llist.GetLineLength(
m_llist.GetCurrentObject())
- m_llist.GetCursor().x;
m_llist.Delete(help ? help : 1);
}
else
m_llist.Delete(1);
break;
case WXK_BACK: // backspace
if(m_llist.MoveCursor(-1)) {
m_llist.Delete(1);
}
break;
case WXK_RETURN:
m_llist.LineBreak();
break;
#ifdef WXLAYOUT_DEBUG
case WXK_F1:
m_llist.Debug();
break;
case WXK_F2:
m_llist.WrapLine();
break;
#endif
default:
if(keyCode < 256 && keyCode >= 32)
{
String tmp;
tmp += keyCode;
m_llist.Insert(tmp);
m_llist.WrapLine();
}
break;
}
/** Scroll so that cursor is visible! */
int x0,y0,x1,y1,ux,uy;
ViewStart(&x0,&y0);
GetScrollPixelsPerUnit(&ux,&uy);
x0*=ux; y0*=uy;
GetClientSize(&x1,&y1);
wxPoint cc = m_llist.GetCursorCoords();
int nx = x0, ny = y0;
// when within 10% of borders, scroll to center
if(cc.y > y0+(9*y1)/10)
ny = cc.y - y1/5;
else if (cc.y < y0+y1/10)
{
ny = cc.y-y1/2;
if(ny < 0) ny = 0;
}
if(cc.x > x0+(9*x1)/10)
nx = cc.x - x1/5;
else if (cc.x < x0+x1/10)
{
nx = cc.x-x1/2;
if(nx < 0) nx = 0;
}
Scroll(nx,ny);
Update();
}
void
wxLayoutWindow::OnPaint( wxPaintEvent &WXUNUSED(event)) // or: OnDraw(wxDC& dc)
{
wxPaintDC dc( this );
PrepareDC( dc );
DoPaint(dc);
// wxGTK: wxMemoryDC broken?
#if 0
int x0,y0,x1,y1;
ViewStart(&x0,&y0);
GetSize(&x1,&y1);
WXL_VAR(x0); WXL_VAR(y0);
WXL_VAR(x1); WXL_VAR(y1);
wxMemoryDC(memdc);
wxBitmap bm(x1,y1);
memdc.SelectObject(bm);
// make temporary copy and edit this
memdc.SetDeviceOrigin(x0,y0);
memdc.Blit(x0,y0,x1,y1,&dc,x0,y0,wxCOPY,FALSE);
DoPaint(memdc);
// blit it back
dc.Blit(x0,y0,x1,y1,&memdc,x0,y0,wxCOPY,FALSE);
#endif
}
// does the actual painting
void
wxLayoutWindow::DoPaint(wxDC &dc)
{
m_llist.EraseAndDraw(dc);
m_llist.DrawCursor(dc);
// FIXME: not strictly correct, this does only work for changes behind
// the cursor position, not complete redraws
if(! m_ScrollbarsSet)
{
m_ScrollbarsSet = true; // avoid recursion
UpdateScrollbars();
}
}
void
wxLayoutWindow::UpdateScrollbars(void)
{
CoordType
max_x, max_y, lineHeight;
ViewStart(&m_ViewStartX, &m_ViewStartY);
m_llist.GetSize(&max_x, &max_y, &lineHeight);
SetScrollbars(10, lineHeight, max_x/10+1, max_y/lineHeight+1,m_ViewStartX,m_ViewStartY,true);
//EnableScrolling(true,true);
//Scroll(m_ViewStartX, m_ViewStartY);
}
void
wxLayoutWindow::Print(void)
{
wxPostScriptDC dc("layout.ps",true,this);
if (dc.Ok() && dc.StartDoc((char *)_("Printing message...")))
{
//dc.SetUserScale(1.0, 1.0);
m_llist.Draw(dc);
dc.EndDoc();
}
}
wxMenu *
wxLayoutWindow::MakeFormatMenu()
{
if(m_PopupMenu)
return m_PopupMenu;
wxMenu *m = new wxMenu();
m->Append(WXLOWIN_MENU_LARGER ,_("&Larger"),_("Switch to larger font."), false);
m->Append(WXLOWIN_MENU_SMALLER ,_("&Smaller"),_("Switch to smaller font."), false);
m->AppendSeparator();
m->Append(WXLOWIN_MENU_UNDERLINE,_("&Underline"),_("Toggle underline mode."), true);
m->Append(WXLOWIN_MENU_BOLD ,_("&Bold"),_("Toggle bold mode."), true);
m->Append(WXLOWIN_MENU_ITALICS ,_("&Italics"),_("Toggle italics mode."), true);
m->AppendSeparator();
m->Append(WXLOWIN_MENU_ROMAN ,_("&Roman"),_("Toggle underline mode."), false);
m->Append(WXLOWIN_MENU_TYPEWRITER,_("&Typewriter"),_("Toggle bold mode."), false);
m->Append(WXLOWIN_MENU_SANSSERIF ,_("&Sans Serif"),_("Toggle italics mode."), false);
return m_PopupMenu = m;
}
void wxLayoutWindow::OnMenu(wxCommandEvent& event)
{
if(! m_llist.IsEditable())
return;
switch (event.GetId())
{
case WXLOWIN_MENU_LARGER:
m_llist.SetFontLarger();
break;
case WXLOWIN_MENU_SMALLER:
m_llist.SetFontSmaller();
break;
case WXLOWIN_MENU_UNDERLINE:
m_llist.SetFontUnderline(
m_PopupMenu->IsChecked(WXLOWIN_MENU_UNDERLINE) ? false : true
);
break;
case WXLOWIN_MENU_BOLD:
m_llist.SetFontWeight(
m_PopupMenu->IsChecked(WXLOWIN_MENU_BOLD) ? wxNORMAL : wxBOLD
);
case WXLOWIN_MENU_ITALICS:
m_llist.SetFontStyle(
m_PopupMenu->IsChecked(WXLOWIN_MENU_ITALICS) ? wxNORMAL : wxITALIC
);
break;
case WXLOWIN_MENU_ROMAN:
m_llist.SetFontFamily(wxROMAN); break;
case WXLOWIN_MENU_TYPEWRITER:
m_llist.SetFontFamily(wxFIXED); break;
case WXLOWIN_MENU_SANSSERIF:
m_llist.SetFontFamily(wxSWISS); break;
}
}
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