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wxWidgets/contrib/samples/canvas/test/test.cpp
Robert Roebling b578915045 Changed wxCanvas constants from XXX to wxXXX 
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@9166 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
2001-01-25 18:25:21 +00:00

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/*
* Program: canvas
*
* Author: Robert Roebling
*
* Copyright: (C) 1998, Robert Roebling
*
*/
#ifdef __GNUG__
#pragma implementation "test.cpp"
#endif
// For compilers that support precompilation
#include "wx/wxprec.h"
#ifdef __BORLANDC__
#pragma hdrstop
#endif
#include "test.h"
#include "smile.xpm"
//-----------------------------------------------------
// class MywxCanvasObjectRef
//-----------------------------------------------------
BEGIN_EVENT_TABLE(MywxCanvasObjectRef,wxCanvasObjectRef)
EVT_MOUSE_EVENTS( MywxCanvasObjectRef::OnMouseEvent )
END_EVENT_TABLE()
IMPLEMENT_DYNAMIC_CLASS(MywxCanvasObjectRef, wxCanvasObjectRef)
MywxCanvasObjectRef::MywxCanvasObjectRef(double x, double y,wxCanvasObjectGroup* group)
:wxCanvasObjectRef(x,y,group)
{
}
MywxCanvasObjectRef::MywxCanvasObjectRef()
:wxCanvasObjectRef(0,0,NULL)
{
}
MywxCanvasObjectRef::~MywxCanvasObjectRef()
{
}
void MywxCanvasObjectRef::OnMouseEvent(wxMouseEvent &event)
{
if (!m_dragable)
{
event.Skip();
return;
}
static double xprev;
static double yprev;
//new position of the mouse relative within the object
double x = m_admin->DeviceToLogicalX(event.GetX());
double y = m_admin->DeviceToLogicalY(event.GetY());
if (event.LeftDown())
{
CaptureMouse();
if (m_dragmode != wxDRAG_REDRAW)
DragStart();
}
else if (event.LeftUp())
{
ReleaseMouse();
if (m_dragmode != wxDRAG_REDRAW)
DragEnd();
}
else if (IsCapturedMouse())
{
if (m_dragmode != wxDRAG_REDRAW)
DragRelative(x-xprev,y-yprev);
else
MoveRelative(x-xprev,y-yprev);
m_admin->UpdateNow();
}
xprev=x;
yprev=y;
//well do something extra
if (IsCapturedMouse())
m_admin->GetActive()->SetCursor(*wxHOURGLASS_CURSOR);
else
m_admin->GetActive()->SetCursor(*wxSTANDARD_CURSOR);
}
//---------------------------------------------------
// class MyEventHandler
//---------------------------------------------------
BEGIN_EVENT_TABLE(MyEventHandler,wxEvtHandler)
EVT_MOUSE_EVENTS( MyEventHandler::OnMouseEvent )
END_EVENT_TABLE()
MyEventHandler::MyEventHandler()
{
}
void MyEventHandler::OnMouseEvent(wxMouseEvent &event)
{
wxCanvasObject* obj=(wxCanvasObject*)event.GetEventObject();
if (!obj->GetDraggable())
return;
static double xprev;
static double yprev;
wxCanvasAdmin* adm=obj->GetAdmin();
//new position of the mouse relative within the object
double x = adm->DeviceToLogicalX(event.GetX());
double y = adm->DeviceToLogicalY(event.GetY());
if (event.LeftDown())
{
obj->CaptureMouse();
if (obj->GetDragMode() != wxDRAG_REDRAW)
obj->DragStart();
}
else if (event.LeftUp())
{
obj->ReleaseMouse();
if (obj->GetDragMode() != wxDRAG_REDRAW)
obj->DragEnd();
}
else if (obj->IsCapturedMouse())
{
if (obj->GetDragMode() != wxDRAG_REDRAW)
obj->DragRelative(x-xprev,y-yprev);
else
obj->MoveRelative(x-xprev,y-yprev);
adm->UpdateNow();
}
xprev=x;
yprev=y;
//well do something extra
if (obj->IsCapturedMouse())
obj->GetAdmin()->GetActive()->SetCursor(*wxHOURGLASS_CURSOR);
else
obj->GetAdmin()->GetActive()->SetCursor(*wxSTANDARD_CURSOR);
}
//------------------------------------------------
// class MyFrame
//------------------------------------------------
class MyApp;
class MyCanvas;
BEGIN_EVENT_TABLE(MyFrame, wxFrame)
EVT_MENU(SPLIT_VERTICAL, MyFrame::SplitVertical)
EVT_MENU(SPLIT_HORIZONTAL, MyFrame::SplitHorizontal)
EVT_MENU(SPLIT_UNSPLIT, MyFrame::Unsplit)
EVT_MENU(SPLIT_QUIT, MyFrame::Quit)
EVT_MENU(SPLIT_SETMINSIZE, MyFrame::SetMinSize)
EVT_UPDATE_UI(SPLIT_VERTICAL, MyFrame::UpdateUIVertical)
EVT_UPDATE_UI(SPLIT_HORIZONTAL, MyFrame::UpdateUIHorizontal)
EVT_UPDATE_UI(SPLIT_UNSPLIT, MyFrame::UpdateUIUnsplit)
EVT_MENU (ID_ABOUT, MyFrame::OnAbout)
EVT_TIMER (-1, MyFrame::OnTimer)
END_EVENT_TABLE()
// My frame constructor
MyFrame::MyFrame(wxFrame* frame, const wxString& title, const wxPoint& pos, const wxSize& size):
wxFrame(frame, SPLITTER_FRAME, title, pos, size)
{
m_eventhandler =new MyEventHandler();
wxPathList pathList;
pathList.Add(".");
pathList.Add("..");
wxString path = pathList.FindValidPath("pat36.bmp");
gs_bmp36_mono.LoadFile(path, wxBITMAP_TYPE_BMP);
wxMask* mask36 = new wxMask(gs_bmp36_mono, *wxBLACK);
/* associate a monochrome mask with this bitmap */
gs_bmp36_mono.SetMask(mask36);
CreateStatusBar(2);
// Make a menubar
fileMenu = new wxMenu;
fileMenu->Append(SPLIT_VERTICAL, "Split &Vertically\tCtrl-V", "Split vertically");
fileMenu->Append(SPLIT_HORIZONTAL, "Split &Horizontally\tCtrl-H", "Split horizontally");
fileMenu->Append(SPLIT_UNSPLIT, "&Unsplit", "Unsplit");
// fileMenu->Append(SPLIT_UNSPLIT, "&Unsplit\tCtrl-U", "Unsplit");
fileMenu->AppendSeparator();
fileMenu->Append(SPLIT_SETMINSIZE, "Set &min size", "Set minimum pane size");
fileMenu->AppendSeparator();
fileMenu->Append(SPLIT_QUIT, "E&xit\tAlt-X", "Exit");
fileMenu->Append( ID_ABOUT, "&About...");
menuBar = new wxMenuBar;
menuBar->Append(fileMenu, "&File");
SetMenuBar(menuBar);
m_splitter = new MySplitterWindow(this, SPLITTER_WINDOW);
m_canvas1 = new MyCanvas(&m_canvasadmin, m_splitter, CANVAS1, wxPoint(0, 0), wxSize(400, 400),wxHSCROLL|wxVSCROLL);
m_canvas1->SetYaxis(FALSE);
m_canvas1->SetMappingScroll(-300,-300,500,500,false);
m_canvas1->SetScroll(-400,-400,600,600);
m_canvas1->SetColour(wxColour(255, 255, 255) );
m_canvas1->SetCursor(wxCursor(wxCURSOR_MAGNIFIER));
m_canvas2 = new MyCanvas(&m_canvasadmin, m_splitter, CANVAS2, wxPoint(0, 0), wxSize(400, 400),wxHSCROLL|wxVSCROLL);
m_canvas2->SetMappingScroll(-100,-100,500,500,false);
m_canvas2->SetScroll(-400,-400,600,600);
m_canvas2->SetColour( wxColour(187, 215, 243) );
m_canvas2->Show(FALSE);
m_canvasadmin.Append(m_canvas1);
m_canvasadmin.Append(m_canvas2);
m_canvasadmin.SetActive(m_canvas1);
m_splitter->Initialize(m_canvas1);
SetStatusText("Min pane size = 0", 1);
int widths[] = { -1, 100 };
SetStatusWidths( 2, widths );
//root group always at 0,0
m_datatree = new wxCanvasObjectGroup(0,0);
m_datatree->DeleteContents( TRUE );
m_datatree->SetAdmin(&m_canvasadmin);
wxBitmap bitmap( smile_xpm );
wxImage image( bitmap );
// m_sm1 = new wxCanvasImage( image, 0,70,32,32 );
// m_datatree->Append( m_sm1 );
int i;
for (i = 10; i < 300; i+=10)
{
wxCanvasRect *r = new wxCanvasRect( i,50,3,140 );
r->SetBrush( *wxRED_BRUSH );
m_datatree->Append( r );
}
// m_sm2 = new wxCanvasImage( image, 0,140,24,24 );
// m_datatree->Append( m_sm2 );
for (i = 15; i < 300; i+=10)
{
wxCanvasRect* rec= new wxCanvasRect( i,50,3,140 );
rec->SetBrush(wxBrush(wxColour(0,10+i,2+i),wxSOLID));
rec->SetDraggable(FALSE);
m_datatree->Append( rec );
}
/*
wxButton *button = new wxButton( m_canvas1, -1, "Hello", wxPoint(80,50) );
m_datatree->Append( new wxCanvasControl( button ) );
m_datatree->Append( new wxCanvasText( "Hello", 180, 50,
wxGetApp().GetFontPath() + "/times.ttf", 20 ) );
m_datatree->Append( new wxCanvasText( "How are you?", 180, 10,
wxGetApp().GetFontPath() + "/times.ttf", 8 ) );
m_datatree->Append( new wxCanvasText( "How are you?", 180, 20,
wxGetApp().GetFontPath() + "/times.ttf", 10 ) );
m_datatree->Append( new wxCanvasText( "How are you?", 180, 30,
wxGetApp().GetFontPath() + "/times.ttf", 12 ) );
m_sm3 = new wxCanvasImage( image, 0,210,32,32 );
m_datatree->Append( m_sm3 );
*/
for (i = 10; i < 300; i+=10)
m_datatree->Append( new wxCanvasLine( 10,-15,i,300 ) );
/*
m_sm4 = new wxCanvasImage( image, 0,270,64,32 );
m_sm4->SetDragMode(wxDRAG_RECTANGLE);
m_datatree->Append( m_sm4 );
*/
// m_canvas->Append( new wxCanvasLine( 10,-1500e6,50,300000e6, 0,255,0 ) );
// m_canvas->Append( new wxCanvasLine( 10,-150000,50,300000, 0,255,0 ) );
//make a group of wxCanvasObjects
wxCanvasObjectGroup* group1 = new wxCanvasObjectGroup(0,0);
wxCanvasLine* line = new wxCanvasLine( 10,-35,50,190);
line->SetPen(wxPen(wxColour(255,161,5),5,wxDOT_DASH ));
group1->Prepend( line );
group1->Prepend( new wxCanvasImage( image, 4,38,32,32 ) );
wxCanvasRect* rec3 = new wxCanvasRect(20,-20,50,170);
rec3->SetBrush(wxBrush(wxColour(0,120,240),wxSOLID));
rec3->SetPen(wxPen(wxColour(252,54,252 ),3,wxSOLID));
group1->Prepend( rec3 );
wxCanvasRect* rec2 = new wxCanvasRect(10,20,104,52);
rec2->SetBrush(wxBrush(wxColour(0,240,240),wxSOLID));
rec2->SetPen(wxPen(wxColour(210,40,50 ),1,wxSOLID));
group1->Prepend( rec2 );
wxPoint2DDouble* todraw2 = new wxPoint2DDouble[3];
todraw2[0].m_x=230;
todraw2[0].m_y=220;
todraw2[1].m_x=300;
todraw2[1].m_y=200;
todraw2[2].m_x=300;
todraw2[2].m_y=300;
wxCanvasPolyline* poly2= new wxCanvasPolyline(3,todraw2);
poly2->SetPen(wxPen(wxColour(200,0,64 ),4,wxDOT));
m_datatree->Prepend( poly2 );
//make another group of wxCanvasObjects
wxCanvasObjectGroup* group2 = new wxCanvasObjectGroup(0,0);
group2->Prepend( new wxCanvasImage( image, 60,38,52,32 ) );
wxCanvasRect* rr = new wxCanvasRect(10,20,104,52,30);
rr->SetBrush(wxBrush(wxColour(10,17,255),wxHORIZONTAL_HATCH ));
rr->SetPen(wxPen(wxColour(9,115,64 ),4,wxSOLID));
group2->Prepend( rr );
//this a reference to group2 put into group1
MywxCanvasObjectRef* m_subref = new MywxCanvasObjectRef(60,50, group2);
m_subref->SetRotation(35);
m_subref->SetRotation(0);
group1->Prepend( m_subref );
wxPoint2DDouble* todraw = new wxPoint2DDouble[5];
todraw[0].m_x=-30;
todraw[0].m_y=-20;
todraw[1].m_x=100;
todraw[1].m_y=0;
todraw[2].m_x=100;
todraw[2].m_y=100;
todraw[3].m_x=50;
todraw[3].m_y=150;
todraw[4].m_x=0;
todraw[4].m_y=100;
wxCanvasPolygon* poly= new wxCanvasPolygon(5,todraw);
poly->SetBrush(wxBrush(wxColour(100,17,255),wxCROSSDIAG_HATCH ));
poly->SetPen(wxPen(wxColour(9,115,64 ),4,wxSOLID));
group1->Prepend( poly );
wxPoint2DDouble* todraw4 = new wxPoint2DDouble[4];
todraw4[0].m_x=-50;
todraw4[0].m_y=-30;
todraw4[1].m_x=-50;
todraw4[1].m_y=70;
todraw4[2].m_x=150;
todraw4[2].m_y=70;
todraw4[3].m_x=150;
todraw4[3].m_y=-30;
wxCanvasPolygon* poly5= new wxCanvasPolygon(4,todraw4);
poly5->SetBrush(wxBrush(wxColour(100,17,255),wxCROSSDIAG_HATCH ));
// poly5->SetBrush(wxBrush(wxColour(100,17,255),wxSOLID ));
// poly5->SetPen(wxPen(wxColour(9,115,64 ),1,wxSOLID));
poly5->SetPen(wxPen(wxColour(9,115,64 ),4,wxSOLID));
wxCanvasObjectGroup* group3 = new wxCanvasObjectGroup(0,0);
group3->Prepend( poly5 );
wxList* pointlist = new wxList();
wxPoint2DDouble* point = new wxPoint2DDouble(0,0);
pointlist->Append((wxObject*)point);
point = new wxPoint2DDouble(-300,100);
pointlist->Append((wxObject*)point);
point = new wxPoint2DDouble(-100,100);
pointlist->Append((wxObject*)point);
point = new wxPoint2DDouble(-100,0);
pointlist->Append((wxObject*)point);
point = new wxPoint2DDouble(-200,50);
pointlist->Append((wxObject*)point);
wxCanvasPolygonL* poly15= new wxCanvasPolygonL(pointlist,TRUE);
poly15->SetColour1(wxColour(250,78,216 ));
poly15->SetColour2(*wxRED);
poly15->SetBrush(wxBrush(gs_bmp36_mono));
poly15->SetTransParent(TRUE);
poly15->SetPen(wxPen(*wxRED,4,wxSOLID));
group1->Prepend( poly15 );
wxList* pointlist2 = new wxList();
wxPoint2DDouble* point2 = new wxPoint2DDouble(-400,100);
pointlist2->Append((wxObject*)point2);
point2 = new wxPoint2DDouble(-400,200);
pointlist2->Append((wxObject*)point2);
point2 = new wxPoint2DDouble(0,200);
pointlist2->Append((wxObject*)point2);
point2 = new wxPoint2DDouble(0,100);
pointlist2->Append((wxObject*)point2);
point2 = new wxPoint2DDouble(-200,175);
pointlist2->Append((wxObject*)point2);
wxCanvasPolylineL* poly16= new wxCanvasPolylineL(pointlist2,TRUE);
poly16->SetPen(wxPen(wxColour(9,115,64 ),4,wxSOLID));
m_datatree->Prepend( poly16 );
wxPoint2DDouble* todraw6 = new wxPoint2DDouble[5];
todraw6[0].m_x=50;
todraw6[0].m_y=305;
todraw6[1].m_x=-200;
todraw6[1].m_y=200;
todraw6[2].m_x=0;
todraw6[2].m_y=500;
todraw6[3].m_x=300;
todraw6[3].m_y=200;
todraw6[4].m_x=-300;
todraw6[4].m_y=-300;
wxCanvasPolygon* poly17= new wxCanvasPolygon(5,todraw6,TRUE);
poly17->SetBrush(wxBrush(wxColour(100,17,255),wxSOLID));
poly17->SetPen(wxPen(wxColour(10,17,25),16,wxLONG_DASH ));
poly17->SetColour1(*wxGREEN);
poly17->SetColour2(*wxRED);
poly17->SetGradient(TRUE,wxPen(wxColour(0,0,0),0,wxSOLID),0);
wxCanvasObjectRef* m_refc = new wxCanvasObjectRef(0,-200, poly17);
m_refc->SetRotation(90);
m_datatree->Prepend( m_refc );
wxCanvasObjectRef* m_refd = new wxCanvasObjectRef(200,-50, poly17);
m_refd->SetRotation(0);
m_datatree->Append( m_refd );
//now make two references to group1 into root group of the canvas
m_ref = new MywxCanvasObjectRef(350,-200, group1);
m_ref->SetRotation(25);
//TODO if rotation is 0 scaling is weird
// m_ref->SetScale(2,3.2);
m_datatree->Append( m_ref );
group3->Prepend( m_ref );
//this a reference to group2 put into group1
MywxCanvasObjectRef* subref2 = new MywxCanvasObjectRef(20,130, group2);
subref2->SetRotation(15);
group3->Prepend( subref2 );
m_datatree->Prepend( subref2 );
m_ref2 = new MywxCanvasObjectRef(80,450, group1);
m_ref2->SetRotation(-35);
m_ref2->SetDragMode(wxDRAG_RECTANGLE);
m_datatree->Prepend( m_ref2 );
wxCanvasCircle* cir = new wxCanvasCircle( -100, -150, 100 );
cir->SetBrush(wxBrush(wxColour(19,215,6),wxHORIZONTAL_HATCH ));
cir->SetPen(wxPen(wxColour(198,3,105 ),30,wxSOLID));
cir->SetDragMode(wxDRAG_REDRAW);
m_datatree->Prepend( cir );
wxCanvasEllipse* elp = new wxCanvasEllipse( -100, 250, 100,300 );
elp->SetBrush(wxBrush(wxColour(100,17,55),wxVERTICAL_HATCH ));
elp->SetPen(wxPen(wxColour(2,255,6 ),10,wxDOT));
m_datatree->Prepend( elp );
wxCanvasEllipticArc* aelp = new wxCanvasEllipticArc( -230, 250, 100,300, 30,270 );
aelp->SetBrush(wxBrush(wxColour(100,17,155),wxSOLID ));
aelp->SetPen(wxPen(wxColour(1,215,6 ),10,wxSOLID));
m_datatree->Prepend( aelp );
//HOW BAD DO THINGS GET
int kk;
for (kk=0;kk<100;kk++)
{
// MywxCanvasObjectRef* m_refx = new MywxCanvasObjectRef(180,50+kk*30, group1);
// m_refx->SetRotation(-35);
// m_datatree->Prepend( m_refx );
}
/*
m_log = new wxTextCtrl( this, -1, "", wxPoint(0,0), wxSize(100,100), wxTE_MULTILINE );
wxLog *old_log = wxLog::SetActiveTarget( new wxLogTextCtrl( m_log ) );
delete old_log;
wxBoxSizer *topsizer = new wxBoxSizer( wxVERTICAL );
topsizer->Add( m_canvas, 1, wxEXPAND );
topsizer->Add( m_log, 0, wxEXPAND );
SetAutoLayout( TRUE );
SetSizer( topsizer );
*/
//fancy background
wxPoint2DDouble* todraw8 = new wxPoint2DDouble[4];
todraw8[0].m_x=-350;
todraw8[0].m_y=-350;
todraw8[1].m_x=-350;
todraw8[1].m_y=550;
todraw8[2].m_x=550;
todraw8[2].m_y=550;
todraw8[3].m_x=550;
todraw8[3].m_y=-350;
wxCanvasPolygon* poly18= new wxCanvasPolygon(4,todraw8);
poly18->SetPen(wxPen(wxColour(10,17,25),16,wxTRANSPARENT ));
poly18->SetColour1(wxColour(0,0,0));
poly18->SetColour2(wxColour(0,255,255));
poly18->SetGradient(TRUE,wxPen(wxColour(0,0,0),0,wxSOLID),0);
wxCanvasObjectRef* m_refb = new wxCanvasObjectRef(200,0, poly18);
m_refb->SetRotation(90);
m_datatree->Prepend( m_refb );
/*
wxCanvasCircle* cir = new wxCanvasCircle( -100, -150, 100 );
cir->SetBrush(wxBrush(wxColour(19,215,6),wxHORIZONTAL_HATCH ));
cir->SetPen(wxPen(wxColour(198,3,105 ),30,wxSOLID));
m_datatree->Prepend( cir );
*/
m_datatree->SetAdmin(&m_canvasadmin);
m_datatree->AppendEventHandler( m_eventhandler );
m_canvas1->SetRoot(m_datatree);
//wxCanvasObjectGroup* group3 = new wxCanvasObjectGroup(0,0);
// group3->Prepend( cir );
group3->SetAdmin(&m_canvasadmin);
m_canvas2->SetRoot(group3);
m_timer = new wxTimer( this );
//m_timer->Start( 100, FALSE );
}
MyFrame::~MyFrame()
{
m_datatree->RemoveLastEventHandler( FALSE );
delete m_eventhandler;
delete m_timer;
}
void MyFrame::Quit(wxCommandEvent& WXUNUSED(event) )
{
Close(TRUE);
}
void MyFrame::SplitHorizontal(wxCommandEvent& WXUNUSED(event) )
{
if ( m_splitter->IsSplit() )
m_splitter->Unsplit();
m_canvas1->Show(TRUE);
m_canvas2->Show(TRUE);
m_splitter->SplitHorizontally( m_canvas1, m_canvas2 );
UpdatePosition();
}
void MyFrame::SplitVertical(wxCommandEvent& WXUNUSED(event) )
{
if ( m_splitter->IsSplit() )
m_splitter->Unsplit();
m_canvas1->Show(TRUE);
m_canvas2->Show(TRUE);
m_splitter->SplitVertically( m_canvas1, m_canvas2 );
UpdatePosition();
}
void MyFrame::Unsplit(wxCommandEvent& WXUNUSED(event) )
{
if ( m_splitter->IsSplit() )
m_splitter->Unsplit();
SetStatusText("No splitter");
}
void MyFrame::SetMinSize(wxCommandEvent& WXUNUSED(event) )
{
wxString str;
str.Printf( _T("%d"), m_splitter->GetMinimumPaneSize());
str = wxGetTextFromUser("Enter minimal size for panes:", "", str, this);
if ( str.IsEmpty() )
return;
int minsize = wxStrtol( str, (wxChar**)NULL, 10 );
m_splitter->SetMinimumPaneSize(minsize);
str.Printf( _T("Min pane size = %d"), minsize);
SetStatusText(str, 1);
}
void MyFrame::UpdateUIHorizontal(wxUpdateUIEvent& event)
{
event.Enable( ( (!m_splitter->IsSplit()) || (m_splitter->GetSplitMode() != wxSPLIT_HORIZONTAL) ) );
}
void MyFrame::UpdateUIVertical(wxUpdateUIEvent& event)
{
event.Enable( ( (!m_splitter->IsSplit()) || (m_splitter->GetSplitMode() != wxSPLIT_VERTICAL) ) );
}
void MyFrame::UpdateUIUnsplit(wxUpdateUIEvent& event)
{
event.Enable( m_splitter->IsSplit() );
}
void MyFrame::UpdatePosition()
{
wxString str;
str.Printf( "Sash position = %d", m_splitter->GetSashPosition());
SetStatusText(str);
}
void MyFrame::OnQuit( wxCommandEvent &WXUNUSED(event) )
{
Close( TRUE );
}
void MyFrame::OnTimer( wxTimerEvent &WXUNUSED(event) )
{
m_sm1->MoveRelative( 1, 0);
m_sm2->MoveRelative( 1, 0);
m_sm3->MoveRelative( 1, 0);
m_sm4->MoveRelative( 2, 0);
// m_ref->MoveRelative( 1, 0 );
m_ref2->MoveRelative( 2, 0 );
m_canvas1->UpdateNow();
wxWakeUpIdle();
}
void MyFrame::OnAbout( wxCommandEvent &WXUNUSED(event) )
{
(void)wxMessageBox( "wxCanvas demo\n"
"Robert Roebling (c) 1998,2000 \n Modified by Klaas Holwerda 2000",
"About wxCanvas Demo", wxICON_INFORMATION | wxOK );
}
//------------------------------------------------
// class MyCanvas
//------------------------------------------------
// the event tables connect the wxWindows events with the functions (event
// handlers) which process them.
BEGIN_EVENT_TABLE(MyCanvas,wxVectorCanvas)
EVT_MOUSE_EVENTS (MyCanvas::OnMouseEvent)
END_EVENT_TABLE()
MyCanvas::MyCanvas(wxCanvasAdmin* admin, MySplitterWindow *parent, wxWindowID id,
const wxPoint &position, const wxSize& size, long style ) :
wxVectorCanvas( admin, parent, id, position, size, style )
{
m_parent=parent;
}
void MyCanvas::OnMouseEvent(wxMouseEvent& event)
{
wxClientDC dc(this);
PrepareDC(dc);
wxPoint pos = event.GetPosition();
m_mouse_worldx = DeviceToLogicalX( pos.x );
m_mouse_worldy = DeviceToLogicalY( pos.y );
wxString str;
str.Printf( "Current mouse position: %f,%f", m_mouse_worldx, m_mouse_worldy );
m_parent->SetStatusText( str );
if (!event.m_controlDown && !GetCaptured())
{
if (event.LeftDown())
{
m_zoom_x1=m_zoom_x2=pos.x;
m_zoom_y1=m_zoom_y2=pos.y;
}
if (event.RightDown())
{
SetMappingScroll(m_virtm_minX,m_virtm_minY,m_virtm_maxX,m_virtm_maxY,0);
Update( 0,0, GetBufferWidth(), GetBufferHeight(), TRUE );
UpdateNow();
}
if (event.LeftUp())
{
m_zoom_x2=pos.x;
m_zoom_y2=pos.y;
double x_virt_min=DeviceToLogicalX(m_zoom_x1);
double y_virt_min=DeviceToLogicalY(m_zoom_y2);
double x_virt_max=DeviceToLogicalX(m_zoom_x2);
double y_virt_max=DeviceToLogicalY(m_zoom_y1);
SetMappingScroll(x_virt_min,y_virt_min,x_virt_max,y_virt_max,0);
Update( 0,0, GetBufferWidth(), GetBufferHeight(), TRUE );
UpdateNow();
}
if (event.Dragging()&& event.m_leftDown)
{
dc.SetLogicalFunction(wxINVERT);
dc.DrawRectangle(m_zoom_x1,m_zoom_y1,m_zoom_x2-m_zoom_x1,m_zoom_y2-m_zoom_y1 );
m_zoom_x2=pos.x;
m_zoom_y2=pos.y;
dc.DrawRectangle(m_zoom_x1,m_zoom_y1,m_zoom_x2-m_zoom_x1,m_zoom_y2-m_zoom_y1 );
}
}
else
{
wxVectorCanvas::OnMouse(event);
}
}
//-----------------------------------------------------------------------------
// MyApp
//-----------------------------------------------------------------------------
// main program
IMPLEMENT_APP(MyApp)
bool MyApp::OnInit()
{
m_fontpath = getenv("TRUETYPE");
m_fontpath = "c:/WINNT/Fonts/times.ttf";
if ( !m_fontpath )
{
wxLogError("Please set env var TRUETYPE to the path where times.ttf lives.");
return FALSE;
}
#if wxUSE_LIBPNG
wxImage::AddHandler( new wxPNGHandler );
#endif
wxFrame *frame = new MyFrame((wxFrame *) NULL, "wxCanvas Example", wxPoint(0,0), wxSize(400,500));
frame->Show( TRUE );
SetTopWindow(frame);
return TRUE;
}
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