1 /*-*- c++ -*-********************************************************
2 * wxLwindow.h : a scrolled Window for displaying/entering rich text*
4 * (C) 1998, 1999 by Karsten Ballüder (Ballueder@usa.net) *
7 *******************************************************************/
10 # pragma implementation "wxlwindow.h"
13 #include "wx/wxprec.h"
23 # include "gui/wxMenuDefs.h"
24 # include "gui/wxMApp.h"
26 # include "gui/wxlwindow.h"
27 # include "gui/wxlparser.h"
36 # include "wxlwindow.h"
37 # include "wxlparser.h"
40 #include <wx/clipbrd.h>
41 #include <wx/textctrl.h>
42 #include <wx/dataobj.h>
46 /// offsets to put a nice frame around text
47 #define WXLO_XOFFSET 4
48 #define WXLO_YOFFSET 4
50 /// offset to the right and bottom for when to redraw scrollbars
51 #define WXLO_ROFFSET 20
52 #define WXLO_BOFFSET 20
54 BEGIN_EVENT_TABLE(wxLayoutWindow
,wxScrolledWindow
)
55 EVT_PAINT (wxLayoutWindow::OnPaint
)
56 EVT_CHAR (wxLayoutWindow::OnChar
)
57 EVT_KEY_UP (wxLayoutWindow::OnKeyUp
)
58 EVT_LEFT_DOWN(wxLayoutWindow::OnLeftMouseClick
)
59 EVT_RIGHT_DOWN(wxLayoutWindow::OnRightMouseClick
)
60 EVT_LEFT_DCLICK(wxLayoutWindow::OnMouseDblClick
)
61 EVT_MOTION (wxLayoutWindow::OnMouseMove
)
62 EVT_MENU_RANGE(WXLOWIN_MENU_FIRST
, WXLOWIN_MENU_LAST
, wxLayoutWindow::OnMenu
)
63 EVT_SET_FOCUS(wxLayoutWindow::OnSetFocus
)
64 EVT_KILL_FOCUS(wxLayoutWindow::OnKillFocus
)
67 wxLayoutWindow::wxLayoutWindow(wxWindow
*parent
)
68 : wxScrolledWindow(parent
, -1, wxDefaultPosition
, wxDefaultSize
,
69 wxHSCROLL
| wxVSCROLL
| wxBORDER
)
73 m_doSendEvents
= false;
74 m_ViewStartX
= 0; m_ViewStartY
= 0;
76 m_PopupMenu
= MakeFormatMenu();
77 m_memDC
= new wxMemoryDC
;
78 m_bitmap
= new wxBitmap(4,4);
79 m_bitmapSize
= wxPoint(4,4);
80 m_llist
= new wxLayoutList();
82 m_ScrollToCursor
= false;
84 wxPoint max
= m_llist
->GetSize();
85 SetScrollbars(10, 20 /*lineHeight*/, max
.x
/10+1, max
.y
/20+1);
86 EnableScrolling(true,true);
87 m_maxx
= max
.x
; m_maxy
= max
.y
;
89 SetCursor(wxCURSOR_IBEAM
);
93 wxLayoutWindow::~wxLayoutWindow()
95 delete m_memDC
; // deletes bitmap automatically (?)
99 SetBackgroundBitmap(NULL
);
104 wxLayoutWindow::MSWGetDlgCode()
106 // if we don't return this, we won't get OnChar() events for TABs and ENTER
107 return DLGC_WANTCHARS
| DLGC_WANTARROWS
| DLGC_WANTMESSAGE
;
112 wxLayoutWindow::OnMouse(int eventId
, wxMouseEvent
& event
)
114 wxPaintDC
dc( this );
120 findPos
.x
= dc
.DeviceToLogicalX(event
.GetX());
121 findPos
.y
= dc
.DeviceToLogicalY(event
.GetY());
123 findPos
.x
-= WXLO_XOFFSET
;
124 findPos
.y
-= WXLO_YOFFSET
;
126 if(findPos
.x
< 0) findPos
.x
= 0;
127 if(findPos
.y
< 0) findPos
.y
= 0;
129 m_ClickPosition
= wxPoint(event
.GetX(), event
.GetY());
130 #ifdef WXLAYOUT_DEBUG
131 // wxLogDebug("wxLayoutWindow::OnMouse: (%d, %d) -> (%d, %d)",
132 // event.GetX(), event.GetY(), findPos.x, findPos.y);
137 wxLayoutObject
*obj
= m_llist
->FindObjectScreen(dc
, findPos
,
140 #ifdef WXLAYOUT_DEBUG
142 // wxLogDebug("wxLayoutWindow::OnMouse: Found object of type %d.",
145 // wxLogDebug("wxLayoutWindow::OnMouse: Found no object.");
148 //has the mouse only been moved?
149 if(eventId
== WXLOWIN_MENU_MOUSEMOVE
)
151 // found is only true if we are really over an object, not just
153 if(found
&& obj
&& obj
->GetUserData() != NULL
)
156 SetCursor(wxCURSOR_HAND
);
162 SetCursor(wxCURSOR_IBEAM
);
163 m_HandCursor
= FALSE
;
168 // always move cursor to mouse click:
169 if(obj
&& eventId
== WXLOWIN_MENU_LCLICK
)
171 m_llist
->MoveCursorTo(cursorPos
);
172 m_ScrollToCursor
= true;
175 if(!m_doSendEvents
) // nothing to do
178 // only do the menu if activated, editable and not on a clickable object
179 if(eventId
== WXLOWIN_MENU_RCLICK
181 && (! obj
|| (obj
&& obj
->GetUserData() == NULL
))
184 PopupMenu(m_PopupMenu
, m_ClickPosition
.x
, m_ClickPosition
.y
);
187 // find the object at this position
190 wxCommandEvent
commandEvent(wxEVT_COMMAND_MENU_SELECTED
, eventId
);
191 commandEvent
.SetEventObject( this );
192 commandEvent
.SetClientData((char *)obj
);
193 GetEventHandler()->ProcessEvent(commandEvent
);
198 * Some simple keyboard handling.
201 wxLayoutWindow::OnChar(wxKeyEvent
& event
)
203 #ifdef WXLAYOUT_DEBUG
204 if(event
.KeyCode() == WXK_F1
)
211 long keyCode
= event
.KeyCode();
212 if(m_Selecting
&& ! event
.ShiftDown())
214 m_llist
->EndSelection();
218 if(! m_Selecting
&& event
.ShiftDown())
231 m_llist
->StartSelection();
238 if(!IsEditable()) // do nothing
243 m_llist
->MoveCursorVertically(-1);
246 m_llist
->MoveCursorVertically(1);
249 m_llist
->MoveCursorVertically(-20);
252 m_llist
->MoveCursorVertically(20);
260 /* First, handle control keys */
261 if(event
.ControlDown() && ! event
.AltDown())
270 m_llist
->DeleteLines(1);
272 case 'h': // like backspace
273 if(m_llist
->MoveCursorHorizontally(-1)) m_llist
->Delete(1);
276 m_llist
->DeleteToBeginOfLine();
279 m_llist
->DeleteToEndOfLine();
284 #ifdef WXLAYOUT_DEBUG
286 m_llist
->SetFont(-1,-1,-1,-1,true); // underlined
294 else if( event
.AltDown() && ! event
.ControlDown() )
300 m_llist
->DeleteWord();
307 else if ( ! event
.AltDown() && ! event
.ControlDown())
312 m_llist
->MoveCursorHorizontally(1);
315 m_llist
->MoveCursorHorizontally(-1);
318 m_llist
->MoveCursorVertically(-1);
321 m_llist
->MoveCursorVertically(1);
324 m_llist
->MoveCursorVertically(-20);
327 m_llist
->MoveCursorVertically(20);
330 m_llist
->MoveCursorToBeginOfLine();
333 m_llist
->MoveCursorToEndOfLine();
336 if(event
.ShiftDown())
342 case WXK_BACK
: // backspace
343 if(m_llist
->MoveCursorHorizontally(-1)) m_llist
->Delete(1);
347 m_llist
->WrapLine(m_WrapMargin
);
348 m_llist
->LineBreak();
351 if((!(event
.ControlDown() || event
.AltDown() || event
.MetaDown()))
352 && (keyCode
< 256 && keyCode
>= 32)
357 if(m_WrapMargin
> 0 && isspace(keyCode
))
358 m_llist
->WrapLine(m_WrapMargin
);
359 m_llist
->Insert(tmp
);
366 m_ScrollToCursor
= true;
367 //DoPaint(true); // paint and scroll to cursor
368 wxRect r
= *m_llist
->GetUpdateRect();
373 wxLayoutWindow::OnKeyUp(wxKeyEvent
& event
)
375 if(event
.KeyCode() == WXK_SHIFT
&& m_llist
->IsSelecting())
376 m_llist
->EndSelection();
381 wxLayoutWindow::OnPaint( wxPaintEvent
&WXUNUSED(event
)) // or: OnDraw(wxDC& dc)
383 wxRect region
= GetUpdateRegion().GetBox();
384 InternalPaint(& region
);
388 wxLayoutWindow::DoPaint(const wxRect
*updateRect
)
391 InternalPaint(updateRect
);
393 Refresh(FALSE
, updateRect
); // Causes bad flicker under wxGTK!!!
398 wxLayoutWindow::InternalPaint(const wxRect
*updateRect
)
400 wxPaintDC
dc( this );
403 int x0
,y0
,x1
,y1
, dx
, dy
;
405 // Calculate where the top of the visible area is:
407 GetScrollPixelsPerUnit(&dx
, &dy
);
410 // Get the size of the visible window:
411 GetClientSize(&x1
,&y1
);
414 // As we have the values anyway, use them to avoid unnecessary
415 // scrollbar updates.
416 if(x1
> m_maxx
) m_maxx
= x1
;
417 if(y1
> m_maxy
) m_maxy
= y1
;
420 //m_llist->InvalidateUpdateRect();
421 //const wxRect *r = m_llist->GetUpdateRect();
422 wxLogDebug("Update rect: %ld,%ld / %ld,%ld",
423 updateRect
->x
, updateRect
->y
, updateRect
->x
+updateRect
->width
, updateRect
->y
+updateRect
->height
);
426 //FIXME: we should never need to call Layout at all because the
427 // list does it automatically.
428 // Maybe we need to change the scrollbar sizes or positions,
429 // so layout the list and check:
432 wxLogDebug("Update rect after calling Layout: %ld,%ld / %ld,%ld",
433 r
->x
, r
->y
, r
->x
+r
->width
, r
->y
+r
->height
);
434 // this is needed even when only the cursor moved
435 m_llist
->Layout(dc
,y0
+y1
);
436 wxLogDebug("Update rect after calling Layout again: %ld,%ld / %ld,%ld",
437 r
->x
, r
->y
, r
->x
+r
->width
, r
->y
+r
->height
);
443 /* Make sure that the scrollbars are at a position so that the
444 cursor is visible if we are editing. */
445 /** Scroll so that cursor is visible! */
446 wxLogDebug("m_ScrollToCursor = %d", (int) m_ScrollToCursor
);
447 if(IsEditable() && m_ScrollToCursor
)
449 wxPoint cc
= m_llist
->GetCursorScreenPos(*m_memDC
);
450 if(cc
.x
< x0
|| cc
.y
< y0
451 || cc
.x
>= x0
+(9*x1
)/10 || cc
.y
>= y0
+(9*y1
/10)) // (9*x)/10 == 90%
454 nx
= cc
.x
- x1
/2; if(nx
< 0) nx
= 0;
455 ny
= cc
.y
- y1
/2; if(ny
< 0) ny
= 0;
456 Scroll(nx
/dx
,ny
/dy
); // new view start
461 /* Check whether the window has grown, if so, we need to reallocate
462 the bitmap to be larger. */
463 if(x1
> m_bitmapSize
.x
|| y1
> m_bitmapSize
.y
)
465 wxASSERT(m_bitmapSize
.x
> 0);
466 wxASSERT(m_bitmapSize
.y
> 0);
468 m_memDC
->SelectObject(wxNullBitmap
);
470 m_bitmapSize
= wxPoint(x1
,y1
);
471 m_bitmap
= new wxBitmap(x1
,y1
);
472 m_memDC
->SelectObject(*m_bitmap
);
475 // Device origins on the memDC are suspect, we translate manually
476 // with the translate parameter of Draw().
477 m_memDC
->SetDeviceOrigin(0,0);
478 m_memDC
->SetBrush(wxBrush(m_llist
->GetDefaults()->GetBGColour(), wxSOLID
));
479 m_memDC
->SetPen(wxPen(m_llist
->GetDefaults()->GetBGColour(),0,wxTRANSPARENT
));
480 m_memDC
->SetLogicalFunction(wxCOPY
);
485 w
= m_BGbitmap
->GetWidth(),
486 h
= m_BGbitmap
->GetHeight();
487 for(y
= 0; y
< y1
; y
+=h
)
488 for(x
= 0; x
< x1
; x
+=w
)
489 m_memDC
->DrawBitmap(*m_BGbitmap
, x
, y
);
490 m_memDC
->SetBackgroundMode(wxTRANSPARENT
);
494 m_memDC
->SetBackgroundMode(wxSOLID
);
495 m_memDC
->DrawRectangle(0,0,x1
, y1
);
499 /* This is the important bit: we tell the list to draw itself: */
500 wxLogDebug("Update rect: %ld,%ld / %ld,%ld",
501 updateRect
->x
, updateRect
->y
, updateRect
->x
+updateRect
->width
, updateRect
->y
+updateRect
->height
);
503 wxPoint
offset(-x0
+WXLO_XOFFSET
,-y0
+WXLO_YOFFSET
);
504 m_llist
->Draw(*m_memDC
,offset
, y0
, y0
+y1
);
506 // Now copy everything to the screen:
509 // 1. the update region as calculated by the list is wrong
510 // 2. we get wrong values here
511 // 3. how about the offset?
512 wxRegionIterator
ri ( GetUpdateRegion() );
516 wxLogDebug("UpdateRegion: %ld,%ld, %ld,%ld",
517 ri
.GetX(),ri
.GetY(),ri
.GetW(),ri
.GetH());
518 dc
.Blit(x0
+ri
.GetX(),y0
+ri
.GetY(),ri
.GetW(),ri
.GetH(),
519 m_memDC
,ri
.GetX(),ri
.GetY(),wxCOPY
,FALSE
);
525 // FIXME: Trying to copy only the changed parts, but it does not seem
527 // x0 = updateRect->x; y0 = updateRect->y;
528 // if(updateRect->height < y1)
529 // y1 = updateRect->height;
530 // y1 += WXLO_YOFFSET; //FIXME might not be needed
531 dc
.Blit(x0
,y0
,x1
,y1
,m_memDC
,0,0,wxCOPY
,FALSE
);
533 //FIXME: we need to make sure we blit draw the cursor!
534 // How about drawing it directly to the screen?
536 //m_llist->DrawCursor(*m_memDC,m_HaveFocus,offset);
537 m_llist
->DrawCursor(dc
,m_HaveFocus
, wxPoint(WXLO_XOFFSET
,WXLO_YOFFSET
)); //direct to screen
540 m_ScrollToCursor
= false;
541 m_llist
->InvalidateUpdateRect();
544 // change the range and position of scroll bars
546 wxLayoutWindow::ResizeScrollbars(bool exact
)
548 wxPoint max
= m_llist
->GetSize();
550 if(max
.x
> m_maxx
|| max
.y
> m_maxy
551 || max
.x
> m_maxx
-WXLO_ROFFSET
|| max
.y
> m_maxy
-WXLO_BOFFSET
556 // add an extra bit to the sizes to avoid future updates
557 max
.x
= max
.x
+WXLO_ROFFSET
;
558 max
.y
= max
.y
+WXLO_BOFFSET
;
560 ViewStart(&m_ViewStartX
, &m_ViewStartY
);
561 SetScrollbars(10, 20, max
.x
/10+1,max
.y
/20+1,m_ViewStartX
,m_ViewStartY
,true);
562 m_maxx
= max
.x
; m_maxy
= max
.y
;
567 wxLayoutWindow::Paste(void)
571 if (wxTheClipboard
->Open())
573 wxTextDataObject data
;
574 if (wxTheClipboard
->IsSupported( data
.GetFormat() ))
576 wxTheClipboard
->GetData(&data
);
577 text
+= data
.GetText();
579 wxTheClipboard
->Close();
582 /* Unfortunately, this little hack doesn't work. So I'll go back to
584 if(text
.Length() == 0)
586 wxTextCtrl
tmp_tctrl(this,-1);
588 text
+= tmp_tctrl
.GetValue();
591 wxLayoutImportText( m_llist
, text
);
596 wxLayoutWindow::MakeFormatMenu()
598 wxMenu
*m
= new wxMenu(_("Layout Menu"));
600 m
->Append(WXLOWIN_MENU_LARGER
,_("&Larger"),_("Switch to larger font."), false);
601 m
->Append(WXLOWIN_MENU_SMALLER
,_("&Smaller"),_("Switch to smaller font."), false);
602 m
->AppendSeparator();
603 m
->Append(WXLOWIN_MENU_UNDERLINE_ON
, _("&Underline on"),_("Activate underline mode."), false);
604 m
->Append(WXLOWIN_MENU_UNDERLINE_OFF
,_("&Underline off"),_("Deactivate underline mode."), false);
605 m
->Append(WXLOWIN_MENU_BOLD_ON
,_("&Bold on"),_("Activate bold mode."), false);
606 m
->Append(WXLOWIN_MENU_BOLD_OFF
,_("&Bold off"),_("Deactivate bold mode."), false);
607 m
->Append(WXLOWIN_MENU_ITALICS_ON
,_("&Italics on"),_("Activate italics mode."), false);
608 m
->Append(WXLOWIN_MENU_ITALICS_OFF
,_("&Italics off"),_("Deactivate italics mode."), false);
609 m
->AppendSeparator();
610 m
->Append(WXLOWIN_MENU_ROMAN
,_("&Roman"),_("Switch to roman font."), false);
611 m
->Append(WXLOWIN_MENU_TYPEWRITER
,_("&Typewriter"),_("Switch to typewriter font."), false);
612 m
->Append(WXLOWIN_MENU_SANSSERIF
,_("&Sans Serif"),_("Switch to sans serif font."), false);
616 void wxLayoutWindow::OnMenu(wxCommandEvent
& event
)
618 switch (event
.GetId())
620 case WXLOWIN_MENU_LARGER
:
621 m_llist
->SetFontLarger(); break;
622 case WXLOWIN_MENU_SMALLER
:
623 m_llist
->SetFontSmaller(); break;
624 case WXLOWIN_MENU_UNDERLINE_ON
:
625 m_llist
->SetFontUnderline(true); break;
626 case WXLOWIN_MENU_UNDERLINE_OFF
:
627 m_llist
->SetFontUnderline(false); break;
628 case WXLOWIN_MENU_BOLD_ON
:
629 m_llist
->SetFontWeight(wxBOLD
); break;
630 case WXLOWIN_MENU_BOLD_OFF
:
631 m_llist
->SetFontWeight(wxNORMAL
); break;
632 case WXLOWIN_MENU_ITALICS_ON
:
633 m_llist
->SetFontStyle(wxITALIC
); break;
634 case WXLOWIN_MENU_ITALICS_OFF
:
635 m_llist
->SetFontStyle(wxNORMAL
); break;
636 case WXLOWIN_MENU_ROMAN
:
637 m_llist
->SetFontFamily(wxROMAN
); break;
638 case WXLOWIN_MENU_TYPEWRITER
:
639 m_llist
->SetFontFamily(wxFIXED
); break;
640 case WXLOWIN_MENU_SANSSERIF
:
641 m_llist
->SetFontFamily(wxSWISS
); break;
646 wxLayoutWindow::OnSetFocus(wxFocusEvent
&ev
)
649 //FIXME DoPaint(); // to repaint the cursor
653 wxLayoutWindow::OnKillFocus(wxFocusEvent
&ev
)
656 //FIXME DoPaint(); // to repaint the cursor