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wxWidgets/src/mgl/window.cpp

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/////////////////////////////////////////////////////////////////////////////
// Name: src/mgl/window.cpp
// Purpose: wxWindow
// Author: Vaclav Slavik
// (based on GTK & MSW implementations)
// RCS-ID: $Id$
// Copyright: (c) 2001-2002 SciTech Software, Inc. (www.scitechsoft.com)
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
// ===========================================================================
// declarations
// ===========================================================================
// ---------------------------------------------------------------------------
// headers
// ---------------------------------------------------------------------------
// For compilers that support precompilation, includes "wx.h".
#include "wx/wxprec.h"
#ifdef __BORLANDC__
#pragma hdrstop
#endif
#ifndef WX_PRECOMP
#include "wx/window.h"
#include "wx/msgdlg.h"
#include "wx/accel.h"
#include "wx/dc.h"
#include "wx/dcclient.h"
#include "wx/utils.h"
#include "wx/app.h"
#include "wx/panel.h"
#endif
#if wxUSE_DRAG_AND_DROP
#include "wx/dnd.h"
#endif
#include "wx/log.h"
#include "wx/sysopt.h"
#include "wx/mgl/private.h"
#include "wx/intl.h"
#include "wx/dcscreen.h"
#include "wx/caret.h"
#include <mgraph.hpp>
#if wxUSE_TOOLTIPS
#include "wx/tooltip.h"
#endif
// ---------------------------------------------------------------------------
// global variables
// ---------------------------------------------------------------------------
// MGL window manager and associated DC.
winmng_t *g_winMng = NULL;
MGLDevCtx *g_displayDC = NULL;
// the window that has keyboard focus:
static wxWindowMGL *gs_focusedWindow = NULL;
// the window that is about to be focused after currently focused
// one looses focus:
static wxWindow *gs_toBeFocusedWindow = NULL;
// the window that is currently under mouse cursor:
static wxWindowMGL *gs_windowUnderMouse = NULL;
// the window that has mouse capture
static wxWindowMGL *gs_mouseCapture = NULL;
// the frame that is currently active (i.e. its child has focus). It is
// used to generate wxActivateEvents
static wxWindowMGL *gs_activeFrame = NULL;
// ---------------------------------------------------------------------------
// constants
// ---------------------------------------------------------------------------
// Custom identifiers used to distinguish between various event handlers
// and capture handlers passed to MGL_wm
enum
{
wxMGL_CAPTURE_MOUSE = 1,
wxMGL_CAPTURE_KEYB = 2
};
// ---------------------------------------------------------------------------
// private functions
// ---------------------------------------------------------------------------
// Returns toplevel grandparent of given window:
static wxWindowMGL* wxGetTopLevelParent(wxWindowMGL *win)
{
wxWindowMGL *p = win;
while (p && !p->IsTopLevel())
p = p->GetParent();
return p;
}
// An easy way to capture screenshots:
static void wxCaptureScreenshot(bool activeWindowOnly)
{
#ifdef __DOS__
#define SCREENSHOT_FILENAME _T("sshot%03i.png")
#else
#define SCREENSHOT_FILENAME _T("screenshot-%03i.png")
#endif
static int screenshot_num = 0;
wxString screenshot;
do
{
screenshot.Printf(SCREENSHOT_FILENAME, screenshot_num++);
} while ( wxFileExists(screenshot) && screenshot_num < 1000 );
wxRect r(0, 0, g_displayDC->sizex(), g_displayDC->sizey());
if ( activeWindowOnly && gs_activeFrame )
{
r.Intersect(gs_activeFrame->GetRect());
}
g_displayDC->savePNGFromDC(screenshot.mb_str(),
r.x, r. y, r.x+r.width, r.y+r.height);
wxMessageBox(wxString::Format(_T("Screenshot captured: %s"),
screenshot.c_str()));
}
// ---------------------------------------------------------------------------
// MGL_WM hooks:
// ---------------------------------------------------------------------------
static void MGLAPI wxWindowPainter(window_t *wnd, MGLDC *dc)
{
wxWindowMGL *w = (wxWindow*) wnd->userData;
if ( w && !(w->GetWindowStyle() & wxTRANSPARENT_WINDOW) )
{
MGLDevCtx ctx(dc);
w->HandlePaint(&ctx);
}
}
static ibool MGLAPI wxWindowMouseHandler(window_t *wnd, event_t *e)
{
wxWindowMGL *win = (wxWindowMGL*)MGL_wmGetWindowUserData(wnd);
wxPoint orig(win->GetClientAreaOrigin());
wxPoint where;
MGL_wmCoordGlobalToLocal(win->GetHandle(),
e->where_x, e->where_y, &where.x, &where.y);
for (wxWindowMGL *w = win; w; w = w->GetParent())
{
if ( !w->IsEnabled() )
return FALSE;
if ( w->IsTopLevel() )
break;
}
wxEventType type = wxEVT_NULL;
wxMouseEvent event;
event.SetEventObject(win);
event.SetTimestamp(e->when);
event.m_x = where.x - orig.x;
event.m_y = where.y - orig.y;
event.m_shiftDown = ( e->modifiers & EVT_SHIFTKEY ) != 0;
event.m_controlDown = ( e->modifiers & EVT_CTRLSTATE ) != 0;
event.m_altDown = ( e->modifiers & EVT_LEFTALT ) != 0;
event.m_metaDown = ( e->modifiers & EVT_RIGHTALT ) != 0;
event.m_leftDown = ( e->modifiers & EVT_LEFTBUT ) != 0;
event.m_middleDown = ( e->modifiers & EVT_MIDDLEBUT ) != 0;
event.m_rightDown = ( e->modifiers & EVT_RIGHTBUT ) != 0;
switch (e->what)
{
case EVT_MOUSEDOWN:
// Change focus if the user clicks outside focused window:
if ( win->AcceptsFocus() && wxWindow::FindFocus() != win )
win->SetFocus();
if ( e->message & EVT_DBLCLICK )
{
if ( e->message & EVT_LEFTBMASK )
type = wxEVT_LEFT_DCLICK;
else if ( e->message & EVT_MIDDLEBMASK )
type = wxEVT_MIDDLE_DCLICK;
else if ( e->message & EVT_RIGHTBMASK )
type = wxEVT_RIGHT_DCLICK;
}
else
{
if ( e->message & EVT_LEFTBMASK )
type = wxEVT_LEFT_DOWN;
else if ( e->message & EVT_MIDDLEBMASK )
type = wxEVT_MIDDLE_DOWN;
else if ( e->message & EVT_RIGHTBMASK )
type = wxEVT_RIGHT_DOWN;
}
break;
case EVT_MOUSEUP:
if ( e->message & EVT_LEFTBMASK )
type = wxEVT_LEFT_UP;
else if ( e->message & EVT_MIDDLEBMASK )
type = wxEVT_MIDDLE_UP;
else if ( e->message & EVT_RIGHTBMASK )
type = wxEVT_RIGHT_UP;
break;
case EVT_MOUSEMOVE:
if ( !gs_mouseCapture )
{
if ( win != gs_windowUnderMouse )
{
if ( gs_windowUnderMouse )
{
wxMouseEvent event2(event);
MGL_wmCoordGlobalToLocal(gs_windowUnderMouse->GetHandle(),
e->where_x, e->where_y,
&event2.m_x, &event2.m_y);
wxPoint orig(gs_windowUnderMouse->GetClientAreaOrigin());
event2.m_x -= orig.x;
event2.m_y -= orig.y;
event2.SetEventObject(gs_windowUnderMouse);
event2.SetEventType(wxEVT_LEAVE_WINDOW);
gs_windowUnderMouse->GetEventHandler()->ProcessEvent(event2);
}
wxMouseEvent event3(event);
event3.SetEventType(wxEVT_ENTER_WINDOW);
win->GetEventHandler()->ProcessEvent(event3);
gs_windowUnderMouse = win;
}
}
else // gs_mouseCapture
{
bool inside = (where.x >= 0 &&
where.y >= 0 &&
where.x < win->GetSize().x &&
where.y < win->GetSize().y);
if ( (inside && gs_windowUnderMouse != win) ||
(!inside && gs_windowUnderMouse == win) )
{
wxMouseEvent evt(inside ?
wxEVT_ENTER_WINDOW : wxEVT_LEAVE_WINDOW);
evt.SetEventObject(win);
win->GetEventHandler()->ProcessEvent(evt);
gs_windowUnderMouse = inside ? win : NULL;
}
}
type = wxEVT_MOTION;
break;
default:
break;
}
if ( type == wxEVT_NULL )
{
return FALSE;
}
else
{
event.SetEventType(type);
return win->GetEventHandler()->ProcessEvent(event);
}
}
static long wxScanToKeyCode(event_t *event, bool translate)
{
// VS: make it __WXDEBUG__-only, since we have lots of wxLogTrace calls
// here and the arguments would be stored in non-debug executable even
// though wxLogTrace would be no-op...
#ifdef __WXDEBUG__
#define KEY(mgl_key,wx_key) \
case mgl_key: \
wxLogTrace(_T("keyevents"), \
_T("key " #mgl_key ", mapped to " #wx_key)); \
key = wx_key; \
break;
#else
#define KEY(mgl_key,wx_key) \
case mgl_key: key = wx_key; break;
#endif
long key = 0;
if ( translate )
{
switch ( EVT_scanCode(event->message) )
{
KEY (KB_padMinus, WXK_NUMPAD_SUBTRACT)
KEY (KB_padPlus, WXK_NUMPAD_ADD)
KEY (KB_padTimes, WXK_NUMPAD_MULTIPLY)
KEY (KB_padDivide, WXK_NUMPAD_DIVIDE)
KEY (KB_padCenter, WXK_NUMPAD_SEPARATOR) // ?
KEY (KB_padLeft, WXK_NUMPAD_LEFT)
KEY (KB_padRight, WXK_NUMPAD_RIGHT)
KEY (KB_padUp, WXK_NUMPAD_UP)
KEY (KB_padDown, WXK_NUMPAD_DOWN)
KEY (KB_padInsert, WXK_NUMPAD_INSERT)
KEY (KB_padDelete, WXK_NUMPAD_DELETE)
KEY (KB_padHome, WXK_NUMPAD_HOME)
KEY (KB_padEnd, WXK_NUMPAD_END)
KEY (KB_padPageUp, WXK_NUMPAD_PAGEUP)
//KEY (KB_padPageUp, WXK_NUMPAD_PRIOR)
KEY (KB_padPageDown, WXK_NUMPAD_PAGEDOWN)
//KEY (KB_padPageDown, WXK_NUMPAD_NEXT)
KEY (KB_1, '1')
KEY (KB_2, '2')
KEY (KB_3, '3')
KEY (KB_4, '4')
KEY (KB_5, '5')
KEY (KB_6, '6')
KEY (KB_7, '7')
KEY (KB_8, '8')
KEY (KB_9, '9')
KEY (KB_0, '0')
KEY (KB_minus, WXK_SUBTRACT)
KEY (KB_equals, WXK_ADD)
KEY (KB_backSlash, '\\')
KEY (KB_Q, 'Q')
KEY (KB_W, 'W')
KEY (KB_E, 'E')
KEY (KB_R, 'R')
KEY (KB_T, 'T')
KEY (KB_Y, 'Y')
KEY (KB_U, 'U')
KEY (KB_I, 'I')
KEY (KB_O, 'O')
KEY (KB_P, 'P')
KEY (KB_leftSquareBrace,'[')
KEY (KB_rightSquareBrace,']')
KEY (KB_A, 'A')
KEY (KB_S, 'S')
KEY (KB_D, 'D')
KEY (KB_F, 'F')
KEY (KB_G, 'G')
KEY (KB_H, 'H')
KEY (KB_J, 'J')
KEY (KB_K, 'K')
KEY (KB_L, 'L')
KEY (KB_semicolon, ';')
KEY (KB_apostrophe, '\'')
KEY (KB_Z, 'Z')
KEY (KB_X, 'X')
KEY (KB_C, 'C')
KEY (KB_V, 'V')
KEY (KB_B, 'B')
KEY (KB_N, 'N')
KEY (KB_M, 'M')
KEY (KB_comma, ',')
KEY (KB_period, '.')
KEY (KB_divide, WXK_DIVIDE)
KEY (KB_space, WXK_SPACE)
KEY (KB_tilde, '~')
default: break;
}
}
if ( key == 0 )
{
switch ( EVT_scanCode(event->message) )
{
KEY (KB_padEnter, WXK_NUMPAD_ENTER)
KEY (KB_F1, WXK_F1)
KEY (KB_F2, WXK_F2)
KEY (KB_F3, WXK_F3)
KEY (KB_F4, WXK_F4)
KEY (KB_F5, WXK_F5)
KEY (KB_F6, WXK_F6)
KEY (KB_F7, WXK_F7)
KEY (KB_F8, WXK_F8)
KEY (KB_F9, WXK_F9)
KEY (KB_F10, WXK_F10)
KEY (KB_F11, WXK_F11)
KEY (KB_F12, WXK_F12)
KEY (KB_left, WXK_LEFT)
KEY (KB_right, WXK_RIGHT)
KEY (KB_up, WXK_UP)
KEY (KB_down, WXK_DOWN)
KEY (KB_insert, WXK_INSERT)
KEY (KB_delete, WXK_DELETE)
KEY (KB_home, WXK_HOME)
KEY (KB_end, WXK_END)
KEY (KB_pageUp, WXK_PAGEUP)
KEY (KB_pageDown, WXK_PAGEDOWN)
KEY (KB_capsLock, WXK_CAPITAL)
KEY (KB_numLock, WXK_NUMLOCK)
KEY (KB_scrollLock, WXK_SCROLL)
KEY (KB_leftShift, WXK_SHIFT)
KEY (KB_rightShift, WXK_SHIFT)
KEY (KB_leftCtrl, WXK_CONTROL)
KEY (KB_rightCtrl, WXK_CONTROL)
KEY (KB_leftAlt, WXK_ALT)
KEY (KB_rightAlt, WXK_ALT)
KEY (KB_leftWindows, WXK_START)
KEY (KB_rightWindows, WXK_START)
KEY (KB_menu, WXK_MENU)
KEY (KB_sysReq, WXK_SNAPSHOT)
KEY (KB_esc, WXK_ESCAPE)
KEY (KB_backspace, WXK_BACK)
KEY (KB_tab, WXK_TAB)
KEY (KB_enter, WXK_RETURN)
default:
key = EVT_asciiCode(event->message);
break;
}
}
#undef KEY
return key;
}
static bool wxHandleSpecialKeys(wxKeyEvent& event)
{
// Add an easy way to capture screenshots:
if ( event.m_keyCode == WXK_SNAPSHOT
#ifdef __WXDEBUG__ // FIXME_MGL - remove when KB_sysReq works in MGL!
|| (event.m_keyCode == WXK_F1 &&
event.m_shiftDown && event.m_controlDown)
#endif
)
{
wxCaptureScreenshot(event.m_altDown/*only active wnd?*/);
return true;
}
return false;
}
static ibool MGLAPI wxWindowKeybHandler(window_t *wnd, event_t *e)
{
wxWindowMGL *win = (wxWindowMGL*)MGL_wmGetWindowUserData(wnd);
if ( !win->IsEnabled() ) return FALSE;
wxPoint where;
MGL_wmCoordGlobalToLocal(win->GetHandle(),
e->where_x, e->where_y, &where.x, &where.y);
wxKeyEvent event;
event.SetEventObject(win);
event.SetTimestamp(e->when);
event.m_keyCode = wxScanToKeyCode(e, true);
event.m_scanCode = 0; // not used by wx at all
event.m_x = where.x;
event.m_y = where.y;
event.m_shiftDown = ( e->modifiers & EVT_SHIFTKEY ) != 0;
event.m_controlDown = ( e->modifiers & EVT_CTRLSTATE ) != 0;
event.m_altDown = ( e->modifiers & EVT_LEFTALT ) != 0;
event.m_metaDown = ( e->modifiers & EVT_RIGHTALT ) != 0;
if ( e->what == EVT_KEYUP )
{
event.SetEventType(wxEVT_KEY_UP);
return win->GetEventHandler()->ProcessEvent(event);
}
else
{
bool ret;
wxKeyEvent event2;
event.SetEventType(wxEVT_KEY_DOWN);
event2 = event;
ret = win->GetEventHandler()->ProcessEvent(event);
// wxMSW doesn't send char events with Alt pressed
// Only send wxEVT_CHAR event if not processed yet. Thus, ALT-x
// will only be sent if it is not in an accelerator table:
event2.m_keyCode = wxScanToKeyCode(e, false);
if ( !ret && event2.m_keyCode != 0 )
{
event2.SetEventType(wxEVT_CHAR);
ret = win->GetEventHandler()->ProcessEvent(event2);
}
// Synthetize navigation key event, but do it only if the TAB key
// wasn't handled yet:
if ( !ret && event.m_keyCode == WXK_TAB &&
win->GetParent() && win->GetParent()->HasFlag(wxTAB_TRAVERSAL) )
{
wxNavigationKeyEvent navEvent;
navEvent.SetEventObject(win->GetParent());
// Shift-TAB goes in reverse direction:
navEvent.SetDirection(!event.m_shiftDown);
// Ctrl-TAB changes the (parent) window, i.e. switch notebook page:
navEvent.SetWindowChange(event.m_controlDown);
navEvent.SetCurrentFocus(wxStaticCast(win, wxWindow));
ret = win->GetParent()->GetEventHandler()->ProcessEvent(navEvent);
}
// Finally, process special meaning keys that are usually
// a responsibility of OS or window manager:
if ( !ret )
ret = wxHandleSpecialKeys(event);
return ret;
}
}
// ---------------------------------------------------------------------------
// event tables
// ---------------------------------------------------------------------------
// in wxUniv this class is abstract because it doesn't have DoPopupMenu()
IMPLEMENT_ABSTRACT_CLASS(wxWindowMGL, wxWindowBase)
BEGIN_EVENT_TABLE(wxWindowMGL, wxWindowBase)
END_EVENT_TABLE()
// ===========================================================================
// implementation
// ===========================================================================
// ----------------------------------------------------------------------------
// constructors and such
// ----------------------------------------------------------------------------
extern wxVideoMode wxGetDefaultDisplayMode();
void wxWindowMGL::Init()
{
// First of all, make sure window manager is up and running. If it is
// not the case, initialize it in default display mode
if ( !g_winMng )
{
if ( !wxTheApp->SetDisplayMode(wxGetDefaultDisplayMode()) )
wxLogFatalError(_("Cannot initialize display."));
}
// mgl specific:
m_wnd = NULL;
m_isShown = true;
m_frozen = false;
m_paintMGLDC = NULL;
m_eraseBackground = -1;
}
// Destructor
wxWindowMGL::~wxWindowMGL()
{
SendDestroyEvent();
m_isBeingDeleted = true;
if ( gs_mouseCapture == this )
ReleaseMouse();
if (gs_activeFrame == this)
{
gs_activeFrame = NULL;
// activate next frame in Z-order:
if ( m_wnd->prev )
{
wxWindowMGL *win = (wxWindowMGL*)m_wnd->prev->userData;
win->SetFocus();
}
else if ( m_wnd->next )
{
wxWindowMGL *win = (wxWindowMGL*)m_wnd->next->userData;
win->SetFocus();
}
}
if ( gs_focusedWindow == this )
KillFocus();
if ( gs_windowUnderMouse == this )
gs_windowUnderMouse = NULL;
DestroyChildren();
if ( m_wnd )
MGL_wmDestroyWindow(m_wnd);
}
// real construction (Init() must have been called before!)
bool wxWindowMGL::Create(wxWindow *parent,
wxWindowID id,
const wxPoint& pos,
const wxSize& size,
long style,
const wxString& name)
{
if ( !CreateBase(parent, id, pos, size, style, wxDefaultValidator, name) )
return false;
if ( parent )
parent->AddChild(this);
int x, y, w, h;
x = pos.x, y = pos.y;
if ( x == -1 )
x = 0; // FIXME_MGL, something better, see GTK+
if ( y == -1 )
y = 0; // FIXME_MGL, something better, see GTK+
AdjustForParentClientOrigin(x, y, 0);
w = WidthDefault(size.x);
h = HeightDefault(size.y);
long mgl_style = 0;
window_t *wnd_parent = parent ? parent->GetHandle() : NULL;
if ( style & wxFULL_REPAINT_ON_RESIZE )
{
mgl_style |= MGL_WM_FULL_REPAINT_ON_RESIZE;
}
if ( style & wxSTAY_ON_TOP )
{
mgl_style |= MGL_WM_ALWAYS_ON_TOP;
}
if ( style & wxPOPUP_WINDOW )
{
mgl_style |= MGL_WM_ALWAYS_ON_TOP;
// it is created hidden as other top level windows
m_isShown = false;
wnd_parent = NULL;
}
window_t *wnd = MGL_wmCreateWindow(g_winMng, wnd_parent, x, y, w, h);
MGL_wmSetWindowFlags(wnd, mgl_style);
MGL_wmShowWindow(wnd, m_isShown);
SetMGLwindow_t(wnd);
return true;
}
void wxWindowMGL::SetMGLwindow_t(struct window_t *wnd)
{
if ( m_wnd )
MGL_wmDestroyWindow(m_wnd);
m_wnd = wnd;
if ( !m_wnd ) return;
m_isShown = (bool)m_wnd->visible;
MGL_wmSetWindowUserData(m_wnd, (void*) this);
MGL_wmSetWindowPainter(m_wnd, wxWindowPainter);
MGL_wmPushWindowEventHandler(m_wnd, wxWindowMouseHandler, EVT_MOUSEEVT, 0);
MGL_wmPushWindowEventHandler(m_wnd, wxWindowKeybHandler, EVT_KEYEVT, 0);
if ( m_cursor.Ok() )
MGL_wmSetWindowCursor(m_wnd, *m_cursor.GetMGLCursor());
else
MGL_wmSetWindowCursor(m_wnd, *wxSTANDARD_CURSOR->GetMGLCursor());
}
// ---------------------------------------------------------------------------
// basic operations
// ---------------------------------------------------------------------------
void wxWindowMGL::SetFocus()
{
if ( gs_focusedWindow == this ) return;
wxWindowMGL *oldFocusedWindow = gs_focusedWindow;
if ( gs_focusedWindow )
{
gs_toBeFocusedWindow = (wxWindow*)this;
gs_focusedWindow->KillFocus();
gs_toBeFocusedWindow = NULL;
}
gs_focusedWindow = this;
MGL_wmCaptureEvents(GetHandle(), EVT_KEYEVT, wxMGL_CAPTURE_KEYB);
wxWindowMGL *active = wxGetTopLevelParent(this);
if ( !(m_windowStyle & wxPOPUP_WINDOW) && active != gs_activeFrame )
{
if ( gs_activeFrame )
{
wxActivateEvent event(wxEVT_ACTIVATE, false, gs_activeFrame->GetId());
event.SetEventObject(gs_activeFrame);
gs_activeFrame->GetEventHandler()->ProcessEvent(event);
}
gs_activeFrame = active;
wxActivateEvent event(wxEVT_ACTIVATE, true, gs_activeFrame->GetId());
event.SetEventObject(gs_activeFrame);
gs_activeFrame->GetEventHandler()->ProcessEvent(event);
}
wxFocusEvent event(wxEVT_SET_FOCUS, GetId());
event.SetEventObject(this);
event.SetWindow((wxWindow*)oldFocusedWindow);
GetEventHandler()->ProcessEvent(event);
#if wxUSE_CARET
// caret needs to be informed about focus change
wxCaret *caret = GetCaret();
if ( caret )
caret->OnSetFocus();
#endif // wxUSE_CARET
}
void wxWindowMGL::KillFocus()
{
if ( gs_focusedWindow != this ) return;
gs_focusedWindow = NULL;
if ( m_isBeingDeleted ) return;
MGL_wmUncaptureEvents(GetHandle(), wxMGL_CAPTURE_KEYB);
#if wxUSE_CARET
// caret needs to be informed about focus change
wxCaret *caret = GetCaret();
if ( caret )
caret->OnKillFocus();
#endif // wxUSE_CARET
wxFocusEvent event(wxEVT_KILL_FOCUS, GetId());
event.SetEventObject(this);
event.SetWindow(gs_toBeFocusedWindow);
GetEventHandler()->ProcessEvent(event);
}
// ----------------------------------------------------------------------------
// this wxWindowBase function is implemented here (in platform-specific file)
// because it is static and so couldn't be made virtual
// ----------------------------------------------------------------------------
wxWindow *wxWindowBase::DoFindFocus()
{
return (wxWindow*)gs_focusedWindow;
}
bool wxWindowMGL::Show(bool show)
{
if ( !wxWindowBase::Show(show) )
return false;
MGL_wmShowWindow(m_wnd, show);
if (!show && gs_activeFrame == this)
{
// activate next frame in Z-order:
if ( m_wnd->prev )
{
wxWindowMGL *win = (wxWindowMGL*)m_wnd->prev->userData;
win->SetFocus();
}
else if ( m_wnd->next )
{
wxWindowMGL *win = (wxWindowMGL*)m_wnd->next->userData;
win->SetFocus();
}
else
{
gs_activeFrame = NULL;
}
}
return true;
}
// Raise the window to the top of the Z order
void wxWindowMGL::Raise()
{
MGL_wmRaiseWindow(m_wnd);
}
// Lower the window to the bottom of the Z order
void wxWindowMGL::Lower()
{
MGL_wmLowerWindow(m_wnd);
}
void wxWindowMGL::DoCaptureMouse()
{
if ( gs_mouseCapture )
MGL_wmUncaptureEvents(gs_mouseCapture->m_wnd, wxMGL_CAPTURE_MOUSE);
gs_mouseCapture = this;
MGL_wmCaptureEvents(m_wnd, EVT_MOUSEEVT, wxMGL_CAPTURE_MOUSE);
}
void wxWindowMGL::DoReleaseMouse()
{
wxASSERT_MSG( gs_mouseCapture == this, wxT("attempt to release mouse, but this window hasn't captured it") );
MGL_wmUncaptureEvents(m_wnd, wxMGL_CAPTURE_MOUSE);
gs_mouseCapture = NULL;
}
/* static */ wxWindow *wxWindowBase::GetCapture()
{
return (wxWindow*)gs_mouseCapture;
}
bool wxWindowMGL::SetCursor(const wxCursor& cursor)
{
if ( !wxWindowBase::SetCursor(cursor) )
{
// no change
return false;
}
if ( m_cursor.Ok() )
MGL_wmSetWindowCursor(m_wnd, *m_cursor.GetMGLCursor());
else
MGL_wmSetWindowCursor(m_wnd, *wxSTANDARD_CURSOR->GetMGLCursor());
return true;
}
void wxWindowMGL::WarpPointer(int x, int y)
{
int w, h;
wxDisplaySize(&w, &h);
ClientToScreen(&x, &y);
if ( x < 0 )
x = 0;
if ( y < 0 )
y = 0;
if ( x >= w )
x = w-1;
if ( y >= h )
y = h-1;
EVT_setMousePos(x, y);
}
// Set this window to be the child of 'parent'.
bool wxWindowMGL::Reparent(wxWindowBase *parent)
{
if ( !wxWindowBase::Reparent(parent) )
return false;
MGL_wmReparentWindow(m_wnd, parent->GetHandle());
return true;
}
// ---------------------------------------------------------------------------
// drag and drop
// ---------------------------------------------------------------------------
#if wxUSE_DRAG_AND_DROP
void wxWindowMGL::SetDropTarget(wxDropTarget *pDropTarget)
{
if ( m_dropTarget != 0 ) {
m_dropTarget->Revoke(m_hWnd);
delete m_dropTarget;
}
m_dropTarget = pDropTarget;
if ( m_dropTarget != 0 )
m_dropTarget->Register(m_hWnd);
}
// FIXME_MGL
#endif // wxUSE_DRAG_AND_DROP
// old style file-manager drag&drop support: we retain the old-style
// DragAcceptFiles in parallel with SetDropTarget.
void wxWindowMGL::DragAcceptFiles(bool WXUNUSED(accept))
{
#if 0 // FIXME_MGL
HWND hWnd = GetHwnd();
if ( hWnd )
::DragAcceptFiles(hWnd, (BOOL)accept);
#endif
}
// ---------------------------------------------------------------------------
// moving and resizing
// ---------------------------------------------------------------------------
// Get total size
void wxWindowMGL::DoGetSize(int *x, int *y) const
{
wxASSERT_MSG( m_wnd, wxT("invalid window") );
if (x) *x = m_wnd->width;
if (y) *y = m_wnd->height;
}
void wxWindowMGL::DoGetPosition(int *x, int *y) const
{
wxASSERT_MSG( m_wnd, wxT("invalid window") );
int pX = 0, pY = 0;
AdjustForParentClientOrigin(pX, pY, 0);
if (x) *x = m_wnd->x - pX;
if (y) *y = m_wnd->y - pY;
}
void wxWindowMGL::DoScreenToClient(int *x, int *y) const
{
int ax, ay;
MGL_wmCoordGlobalToLocal(m_wnd, 0, 0, &ax, &ay);
if (x)
(*x) += ax;
if (y)
(*y) += ay;
}
void wxWindowMGL::DoClientToScreen(int *x, int *y) const
{
int ax, ay;
MGL_wmCoordLocalToGlobal(m_wnd, 0, 0, &ax, &ay);
if (x)
(*x) += ax;
if (y)
(*y) += ay;
}
// Get size *available for subwindows* i.e. excluding menu bar etc.
void wxWindowMGL::DoGetClientSize(int *x, int *y) const
{
DoGetSize(x, y);
}
void wxWindowMGL::DoMoveWindow(int x, int y, int width, int height)
{
wxRect rcClient(GetClientRect());
MGL_wmSetWindowPosition(m_wnd, x, y, width, height);
// When the origin or a window stays fixed but the height or width
// changes, invalidate the old and new non-client areas
if ( !HasFlag(wxFULL_REPAINT_ON_RESIZE) &&
m_wnd->x == x && m_wnd->y == y &&
rcClient.Intersect(GetClientRect()) != wxRect(0, 0, width, height) )
{
wxRegion rgn(0, 0, width, height);
rgn.Subtract(rcClient);
// This should work I think, but doesn't seem to:
//MGL_wmInvalidateWindowRegion(m_wnd, rgn.GetMGLRegion().rgnPointer());
// Use MGL_wmInvalidateWindowRect instead:
for (wxRegionIterator it(rgn); it; it++)
{
rect_t rc;
rc.left = it.GetX();
rc.top = it.GetY();
rc.right = rc.left + it.GetW();
rc.bottom = rc.top + it.GetH();
MGL_wmInvalidateWindowRect(m_wnd, &rc);
}
}
}
// set the size of the window: if the dimensions are positive, just use them,
// but if any of them is equal to -1, it means that we must find the value for
// it ourselves (unless sizeFlags contains wxSIZE_ALLOW_MINUS_ONE flag, in
// which case -1 is a valid value for x and y)
//
// If sizeFlags contains wxSIZE_AUTO_WIDTH/HEIGHT flags (default), we calculate
// the width/height to best suit our contents, otherwise we reuse the current
// width/height
void wxWindowMGL::DoSetSize(int x, int y, int width, int height, int sizeFlags)
{
// get the current size and position...
int currentX, currentY;
GetPosition(&currentX, &currentY);
int currentW,currentH;
GetSize(&currentW, &currentH);
// ... and don't do anything (avoiding flicker) if it's already ok
if ( x == currentX && y == currentY &&
width == currentW && height == currentH )
{
return;
}
if ( x == -1 && !(sizeFlags & wxSIZE_ALLOW_MINUS_ONE) )
x = currentX;
if ( y == -1 && !(sizeFlags & wxSIZE_ALLOW_MINUS_ONE) )
y = currentY;
AdjustForParentClientOrigin(x, y, sizeFlags);
wxSize size(-1, -1);
if ( width == -1 )
{
if ( sizeFlags & wxSIZE_AUTO_WIDTH )
{
size = DoGetBestSize();
width = size.x;
}
else
{
// just take the current one
width = currentW;
}
}
if ( height == -1 )
{
if ( sizeFlags & wxSIZE_AUTO_HEIGHT )
{
if ( size.x == -1 )
{
size = DoGetBestSize();
}
//else: already called DoGetBestSize() above
height = size.y;
}
else
{
// just take the current one
height = currentH;
}
}
int maxWidth = GetMaxWidth(),
minWidth = GetMinWidth(),
maxHeight = GetMaxHeight(),
minHeight = GetMinHeight();
if ( minWidth != -1 && width < minWidth ) width = minWidth;
if ( maxWidth != -1 && width > maxWidth ) width = maxWidth;
if ( minHeight != -1 && height < minHeight ) height = minHeight;
if ( maxHeight != -1 && height > maxHeight ) height = maxHeight;
if ( m_wnd->x != x || m_wnd->y != y ||
(int)m_wnd->width != width || (int)m_wnd->height != height )
{
DoMoveWindow(x, y, width, height);
wxSize newSize(width, height);
wxSizeEvent event(newSize, GetId());
event.SetEventObject(this);
GetEventHandler()->ProcessEvent(event);
}
}
void wxWindowMGL::DoSetClientSize(int width, int height)
{
SetSize(width, height);
}
// ---------------------------------------------------------------------------
// text metrics
// ---------------------------------------------------------------------------
int wxWindowMGL::GetCharHeight() const
{
wxScreenDC dc;
dc.SetFont(m_font);
return dc.GetCharHeight();
}
int wxWindowMGL::GetCharWidth() const
{
wxScreenDC dc;
dc.SetFont(m_font);
return dc.GetCharWidth();
}
void wxWindowMGL::GetTextExtent(const wxString& string,
int *x, int *y,
int *descent, int *externalLeading,
const wxFont *theFont) const
{
wxScreenDC dc;
if (!theFont)
theFont = &m_font;
dc.GetTextExtent(string, x, y, descent, externalLeading, (wxFont*)theFont);
}
// ---------------------------------------------------------------------------
// painting
// ---------------------------------------------------------------------------
void wxWindowMGL::Clear()
{
wxClientDC dc((wxWindow *)this);
wxBrush brush(GetBackgroundColour(), wxSOLID);
dc.SetBackground(brush);
dc.Clear();
}
#include "wx/menu.h"
void wxWindowMGL::Refresh(bool eraseBack, const wxRect *rect)
{
if ( m_eraseBackground == -1 )
m_eraseBackground = eraseBack;
else
m_eraseBackground |= eraseBack;
if ( rect )
{
rect_t r;
r.left = rect->GetLeft(), r.right = rect->GetRight();
r.top = rect->GetTop(), r.bottom = rect->GetBottom();
MGL_wmInvalidateWindowRect(GetHandle(), &r);
}
else
MGL_wmInvalidateWindow(GetHandle());
}
void wxWindowMGL::Update()
{
if ( !m_frozen )
MGL_wmUpdateDC(g_winMng);
}
void wxWindowMGL::Freeze()
{
m_frozen = true;
m_refreshAfterThaw = false;
}
void wxWindowMGL::Thaw()
{
m_frozen = false;
if ( m_refreshAfterThaw )
Refresh();
}
void wxWindowMGL::HandlePaint(MGLDevCtx *dc)
{
if ( m_frozen )
{
// Don't paint anything if the window is frozen.
m_refreshAfterThaw = true;
return;
}
#ifdef __WXDEBUG__
// FIXME_MGL -- debugging stuff, to be removed!
static int debugPaintEvents = -1;
if ( debugPaintEvents == -1 )
debugPaintEvents = wxGetEnv(wxT("WXMGL_DEBUG_PAINT_EVENTS"), NULL);
if ( debugPaintEvents )
{
dc->setColorRGB(255,0,255);
dc->fillRect(-1000,-1000,2000,2000);
wxUsleep(50);
}
#endif
MGLRegion clip;
dc->getClipRegion(clip);
m_updateRegion = wxRegion(clip);
m_paintMGLDC = dc;
#if wxUSE_CARET
// must hide caret temporarily, otherwise we'd get rendering artifacts
wxCaret *caret = GetCaret();
if ( caret )
caret->Hide();
#endif // wxUSE_CARET
if ( m_eraseBackground != 0 )
{
wxWindowDC dc((wxWindow*)this);
wxEraseEvent eventEr(m_windowId, &dc);
eventEr.SetEventObject(this);
GetEventHandler()->ProcessEvent(eventEr);
}
m_eraseBackground = -1;
wxNcPaintEvent eventNc(GetId());
eventNc.SetEventObject(this);
GetEventHandler()->ProcessEvent(eventNc);
wxPaintEvent eventPt(GetId());
eventPt.SetEventObject(this);
GetEventHandler()->ProcessEvent(eventPt);
#if wxUSE_CARET
if ( caret )
caret->Show();
#endif // wxUSE_CARET
m_paintMGLDC = NULL;
m_updateRegion.Clear();
}
// Find the wxWindow at the current mouse position, returning the mouse
// position.
wxWindow* wxFindWindowAtPointer(wxPoint& pt)
{
return wxFindWindowAtPoint(pt = wxGetMousePosition());
}
wxWindow* wxFindWindowAtPoint(const wxPoint& pt)
{
window_t *wnd = MGL_wmGetWindowAtPosition(g_winMng, pt.x, pt.y);
return (wxWindow*)wnd->userData;
}
// ---------------------------------------------------------------------------
// idle events processing
// ---------------------------------------------------------------------------
void wxWindowMGL::OnInternalIdle()
{
if (wxUpdateUIEvent::CanUpdate(this))
UpdateWindowUI(wxUPDATE_UI_FROMIDLE);
}
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