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wxWidgets/samples/svg/svgtest.cpp
Chris Elliott fa89fbe54f svg Unix fix 
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@15906 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
2002-06-21 09:46:32 +00:00

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// biol75@york.ac.uk (Chris Elliott) March 2000
#ifdef __BIDE__
#define _NO_VCL
#include "condefs.h"
USERC("svg.rc");
//---------------------------------------------------------------------------
#define WinMain WinMain
#endif
/////////////////////////////////////////////////////////////////////////////
// Name: svgtest.cpp
// Purpose: SVG sample
// Author: Chris Elliott
// Modified by:
// RCS-ID: $Id$
// Licence: wxWindows license
/////////////////////////////////////////////////////////////////////////////
// ===========================================================================
// declarations
// ===========================================================================
// ---------------------------------------------------------------------------
// headers
// ---------------------------------------------------------------------------
// For compilers that support precompilation, includes "wx/wx.h".
#include "wx/wxprec.h"
#ifdef __BORLANDC__
#pragma hdrstop
#endif
#ifndef WX_PRECOMP
#include "wx/wx.h"
#include "wx/mdi.h"
#endif
#include <wx/toolbar.h>
#include <wx/svg/dcsvg.h>
#ifndef __WXMSW__
#include "mondrian.xpm"
#endif
#include "bitmaps/new.xpm"
#include "bitmaps/save.xpm"
#include "bitmaps/help.xpm"
#include "SVGlogo24.xpm"
class MyChild;
// Define a new application
class MyApp : public wxApp
{
public:
bool OnInit();
};
// Define a new frame
class MyFrame : public wxMDIParentFrame
{
public:
int nWinCreated;
wxList m_children;
MyFrame(wxWindow *parent, const wxWindowID id, const wxString& title,
const wxPoint& pos, const wxSize& size, const long style);
void InitToolBar(wxToolBar* toolBar);
void OnSize(wxSizeEvent& event);
void OnAbout(wxCommandEvent& event);
void OnNewWindow(wxCommandEvent& event);
void OnQuit(wxCommandEvent& event);
void OnClose(wxCloseEvent& event);
void FileSavePicture (wxCommandEvent & WXUNUSED(event) ) ;
DECLARE_EVENT_TABLE()
};
class MyCanvas : public wxScrolledWindow
{
public:
int m_index ;
MyChild * m_child ;
MyCanvas(wxWindow *parent, const wxPoint& pos, const wxSize& size);
virtual void OnDraw(wxDC& dc);
DECLARE_EVENT_TABLE()
};
class MyChild: public wxMDIChildFrame
{
public:
MyCanvas *m_canvas;
MyFrame *m_frame ;
//////////////////// Methods
MyChild(wxMDIParentFrame *parent, const wxString& title, const wxPoint& pos, const wxSize& size, const long style);
~MyChild();
void OnActivate(wxActivateEvent& event);
void OnQuit(wxCommandEvent& event);
void OnClose(wxCloseEvent& event);
bool OnSave(wxString filename) ;
DECLARE_EVENT_TABLE()
};
// menu items ids
enum
{
MDI_QUIT = 100,
MDI_NEW_WINDOW,
MDI_SAVE,
MDI_REFRESH,
MDI_CHILD_QUIT,
MDI_ABOUT
};
IMPLEMENT_APP(MyApp)
// ---------------------------------------------------------------------------
// global variables
// ---------------------------------------------------------------------------
MyFrame *frame = (MyFrame *) NULL;
// ---------------------------------------------------------------------------
// event tables
// ---------------------------------------------------------------------------
BEGIN_EVENT_TABLE(MyFrame, wxMDIParentFrame)
EVT_MENU(MDI_ABOUT, MyFrame::OnAbout)
EVT_MENU(MDI_NEW_WINDOW, MyFrame::OnNewWindow)
EVT_MENU(MDI_QUIT, MyFrame::OnQuit)
EVT_MENU (MDI_SAVE, MyFrame::FileSavePicture)
EVT_CLOSE(MyFrame::OnClose)
EVT_SIZE(MyFrame::OnSize)
END_EVENT_TABLE()
// ===========================================================================
// implementation
// ===========================================================================
// ---------------------------------------------------------------------------
// MyApp
// ---------------------------------------------------------------------------
// Initialise this in OnInit, not statically
bool MyApp::OnInit()
{
// Create the main frame window
frame = new MyFrame((wxFrame *)NULL, -1, wxT("SVG Demo"),
wxPoint(-1, -1), wxSize(500, 400),
wxDEFAULT_FRAME_STYLE | wxHSCROLL | wxVSCROLL);
// Make a menubar
wxMenu *file_menu = new wxMenu;
file_menu->Append(MDI_NEW_WINDOW, wxT("&New test\tCtrl+N"));
file_menu->Append(MDI_QUIT, wxT("&Exit\tAlt+X"));
wxMenu *help_menu = new wxMenu;
help_menu->Append(MDI_ABOUT, wxT("&About"));
wxMenuBar *menu_bar = new wxMenuBar;
menu_bar->Append(file_menu, wxT("&File"));
menu_bar->Append(help_menu, wxT("&Help"));
// Associate the menu bar with the frame
frame->SetMenuBar(menu_bar);
frame->CreateStatusBar();
frame->Show(TRUE);
SetTopWindow(frame);
return TRUE;
}
// ---------------------------------------------------------------------------
// MyFrame
// ---------------------------------------------------------------------------
// Define my frame constructor
MyFrame::MyFrame(wxWindow *parent, const wxWindowID id, const wxString& title,
const wxPoint& pos, const wxSize& size, const long style)
: wxMDIParentFrame(parent, id, title, pos, size, style)
{
nWinCreated = 0 ;
// Give it an icon
SetIcon(wxICON(mondrian));
CreateToolBar(wxNO_BORDER | wxTB_FLAT | wxTB_HORIZONTAL);
InitToolBar(GetToolBar());
}
void MyFrame::OnClose(wxCloseEvent& event)
{
if ( !event.CanVeto() )
{
event.Skip();
return ;
}
if ( m_children.Number () < 1 )
{
event.Skip();
return ;
}
// now try the children
wxNode * pNode = m_children.GetFirst ();
wxNode * pNext ;
MyChild * pChild ;
while ( pNode )
{
pNext = pNode -> GetNext ();
pChild = (MyChild*) pNode -> Data ();
if (pChild -> Close ())
{
delete pNode ;
}
else
{
event.Veto();
return;
}
pNode = pNext ;
}
event.Skip();
}
void MyFrame::OnQuit(wxCommandEvent& WXUNUSED(event))
{
Close();
}
void MyFrame::OnAbout(wxCommandEvent& WXUNUSED(event) )
{
(void)wxMessageBox(wxT("wxWindows 2.0 SVG 1.0 Test\n"
"Author: Chris Elliott (c) 2002\n"
"Usage: svg.exe \nClick File | New to show tests\n\n"), wxT("About SVG Test"));
}
void MyFrame::OnNewWindow(wxCommandEvent& WXUNUSED(event) )
{
// Make another frame, containing a canvas
MyChild *subframe ;
m_children.Append (new MyChild(frame, wxT("SVG Frame"),
wxPoint(-1, -1), wxSize(-1, -1),
wxDEFAULT_FRAME_STYLE ) ) ;
subframe = (MyChild *) m_children.GetLast() -> Data ();
wxString title;
title.Printf(wxT("SVG Test Window %d"), nWinCreated );
// counts number of children previously, even if now closed
nWinCreated ++ ;
// Give it a title and icon
subframe->SetTitle(title);
subframe->SetIcon(wxICON(mondrian));
// Make a menubar
wxMenu *file_menu = new wxMenu;
file_menu->Append(MDI_NEW_WINDOW, wxT("&Another test\tCtrl+N"));
file_menu->Append(MDI_SAVE, wxT("&Save\tCtrl+S"), wxT("Save in SVG format"));
file_menu->Append(MDI_CHILD_QUIT, wxT("&Close child\tCtrl+F4"));
file_menu->Append(MDI_QUIT, wxT("&Exit\tAlt+X"));
wxMenu *help_menu = new wxMenu;
help_menu->Append(MDI_ABOUT, wxT("&About"));
wxMenuBar *menu_bar = new wxMenuBar;
menu_bar->Append(file_menu, wxT("&File"));
menu_bar->Append(help_menu, wxT("&Help"));
// Associate the menu bar with the frame
subframe->SetMenuBar(menu_bar);
subframe->Show(TRUE);
}
void MyFrame::OnSize(wxSizeEvent& WXUNUSED(event))
{
int w, h;
GetClientSize(&w, &h);
GetClientWindow()->SetSize(0, 0, w, h);
}
void MyFrame::InitToolBar(wxToolBar* toolBar)
{
const int maxBitmaps = 3 ;
wxBitmap* bitmaps[maxBitmaps];
bitmaps[0] = new wxBitmap( new_xpm );
bitmaps[1] = new wxBitmap( save_xpm );
bitmaps[2] = new wxBitmap( help_xpm );
int width = 16;
int currentX = 5;
toolBar->AddTool( MDI_NEW_WINDOW, *(bitmaps[0]), wxNullBitmap, FALSE, currentX, -1, (wxObject *) NULL, wxT("New SVG test window"));
currentX += width + 5;
toolBar->AddTool( MDI_SAVE, *bitmaps[1], wxNullBitmap, FALSE, currentX, -1, (wxObject *) NULL, wxT("Save test in SVG format"));
currentX += width + 5;
toolBar->AddSeparator();
toolBar->AddTool(MDI_ABOUT, *bitmaps[2], wxNullBitmap, TRUE, currentX, -1, (wxObject *) NULL, wxT("Help"));
toolBar->Realize();
int i;
for (i = 0; i < maxBitmaps; i++)
delete bitmaps[i];
}
void MyFrame::FileSavePicture (wxCommandEvent & WXUNUSED(event) )
{
MyChild * pChild = (MyChild *)GetActiveChild ();
if (pChild == NULL)
{
return ;
}
wxFileDialog dialog(this, wxT("Save Picture as"), wxEmptyString, pChild->GetTitle(),
wxT("SVG vector picture files (*.svg)|*.svg"),
wxSAVE|wxOVERWRITE_PROMPT);
if (dialog.ShowModal() == wxID_OK)
{
if (!pChild -> OnSave ( dialog.GetPath() ))
{
return ;
}
}
return ;
}
// Note that MDI_NEW_WINDOW and MDI_ABOUT commands get passed
// to the parent window for processing, so no need to
// duplicate event handlers here.
BEGIN_EVENT_TABLE(MyChild, wxMDIChildFrame)
EVT_MENU(MDI_CHILD_QUIT, MyChild::OnQuit)
EVT_CLOSE(MyChild::OnClose)
END_EVENT_TABLE()
BEGIN_EVENT_TABLE(MyCanvas, wxScrolledWindow)
END_EVENT_TABLE()
// ---------------------------------------------------------------------------
// MyCanvas
// ---------------------------------------------------------------------------
// Define a constructor for my canvas
MyCanvas::MyCanvas(wxWindow *parent, const wxPoint& pos, const wxSize& size)
: wxScrolledWindow(parent, -1, pos, size,
wxSUNKEN_BORDER|wxVSCROLL|wxHSCROLL)
{
m_child = (MyChild *) parent ;
SetBackgroundColour(wxColour("WHITE"));
m_index = m_child->m_frame->nWinCreated % 7 ;
}
// Define the repainting behaviour
void MyCanvas::OnDraw(wxDC& dc)
{
// vars to use ...
wxString s ;
wxPen wP ;
wxBrush wB ;
wxPoint points[6];
wxColour wC;
wxFont wF ;
dc.SetFont(*wxSWISS_FONT);
dc.SetPen(*wxGREEN_PEN);
switch (m_index)
{
default:
case 0:
// draw lines to make a cross
dc.DrawLine(0, 0, 200, 200);
dc.DrawLine(200, 0, 0, 200);
// draw point colored line and spline
wP = *wxCYAN_PEN ;
wP.SetWidth(3);
dc.SetPen(wP);
dc.DrawPoint (25,15) ;
dc.DrawLine(50, 30, 200, 30);
dc.DrawSpline(50, 200, 50, 100, 200, 10);
s = wxT("Green Cross, Cyan Line and spline");
break ;
case 1:
// draw standard shapes
dc.SetBrush(*wxCYAN_BRUSH);
dc.SetPen(*wxRED_PEN);
dc.DrawRectangle(10, 10, 100, 70);
wB = wxBrush ("DARK ORCHID", wxTRANSPARENT);
dc.SetBrush (wB);
dc.DrawRoundedRectangle(50, 50, 100, 70, 20);
dc.SetBrush (wxBrush("GOLDENROD", wxSOLID) );
dc.DrawEllipse(100, 100, 100, 50);
points[0].x = 100; points[0].y = 200;
points[1].x = 70; points[1].y = 260;
points[2].x = 160; points[2].y = 230;
points[3].x = 40; points[3].y = 230;
points[4].x = 130; points[4].y = 260;
points[5].x = 100; points[5].y = 200;
dc.DrawPolygon(5, points);
dc.DrawLines (6, points, 160);
s = wxT("Blue rectangle, red edge, clear rounded rectangle, gold ellipse, gold and clear stars");
break ;
case 2:
// draw text in Arial or similar font
dc.DrawLine(50,25,50,35);
dc.DrawLine(45,30,55,30);
dc.DrawText(wxT("This is a Swiss-style string"), 50, 30);
wC = dc.GetTextForeground() ;
dc.SetTextForeground ("FIREBRICK");
// no effect in msw ??
dc.SetTextBackground ("WHEAT");
dc.DrawText(wxT("This is a Red string"), 50, 200);
dc.DrawRotatedText(wxT("This is a 45 deg string"), 50, 200, 45);
dc.DrawRotatedText(wxT("This is a 90 deg string"), 50, 200, 90);
wF = wxFont ( 18, wxROMAN, wxITALIC, wxBOLD, FALSE, wxT("Times New Roman"));
dc.SetFont(wF);
dc.SetTextForeground (wC) ;
dc.DrawText(wxT("This is a Times-style string"), 50, 60);
s = wxT("Swiss, Times text; red text, rotated and colored orange");
break ;
case 3 :
// four arcs start and end points, center
dc.SetBrush(*wxGREEN_BRUSH);
dc.DrawArc ( 200,300, 370,230, 300.0,300.0 );
dc.SetBrush(*wxBLUE_BRUSH);
dc.DrawArc ( 270-50, 270-86, 270-86, 270-50, 270.0,270.0 );
dc.SetDeviceOrigin(-10,-10);
dc.DrawArc ( 270-50, 270-86, 270-86, 270-50, 270.0,270.0 );
dc.SetDeviceOrigin(0,0);
wP.SetColour ("CADET BLUE");
dc.SetPen(wP);
dc.DrawArc ( 75,125, 110, 40, 75.0, 75.0 );
wP.SetColour ("SALMON");
dc.SetPen(wP);
dc.SetBrush(*wxRED_BRUSH);
//top left corner, width and height, start and end angle
// 315 same center and x-radius as last pie-arc, half Y radius
dc.DrawEllipticArc(25,50,100,50,180.0,45.0) ;
wP = *wxCYAN_PEN ;
wP.SetWidth(3);
dc.SetPen(wP);
//wxTRANSPARENT));
dc.SetBrush (wxBrush ("SALMON",wxSOLID)) ;
dc.DrawEllipticArc(300, 0,200,100, 0.0,145.0) ;
//same end point
dc.DrawEllipticArc(300, 50,200,100,90.0,145.0) ;
dc.DrawEllipticArc(300,100,200,100,90.0,345.0) ;
s = wxT("This is an arc test page");
break ;
case 4:
dc.DrawCheckMark ( 30,30,25,25);
dc.SetBrush (wxBrush ("SALMON",wxTRANSPARENT));
dc.DrawCheckMark ( 80,50,75,75);
dc.DrawRectangle ( 80,50,75,75);
s = wxT("Two check marks");
break ;
case 5:
wF = wxFont ( 18, wxROMAN, wxITALIC, wxBOLD, FALSE, wxT("Times New Roman"));
dc.SetFont(wF);
dc.DrawLine(0, 0, 200, 200);
dc.DrawLine(200, 0, 0, 200);
dc.DrawText(wxT("This is an 18pt string"), 50, 60);
// rescale and draw in blue
wP = *wxCYAN_PEN ;
dc.SetPen(wP);
dc.SetUserScale (2.0,0.5);
dc.SetDeviceOrigin(200,0);
dc.DrawLine(0, 0, 200, 200);
dc.DrawLine(200, 0, 0, 200);
dc.DrawText(wxT("This is an 18pt string 2 x 0.5 UserScaled"), 50, 60);
dc.SetUserScale (2.0,2.0);
dc.SetDeviceOrigin(200,200);
dc.DrawText(wxT("This is an 18pt string 2 x 2 UserScaled"), 50, 60);
wP = *wxRED_PEN ;
dc.SetPen(wP);
dc.SetUserScale (1.0,1.0);
dc.SetDeviceOrigin(0,10);
dc.SetMapMode (wxMM_METRIC) ; //svg ignores this
dc.DrawLine(0, 0, 200, 200);
dc.DrawLine(200, 0, 0, 200);
dc.DrawText(wxT("This is an 18pt string in MapMode"), 50, 60);
s = wxT("Scaling test page");
break ;
case 6:
dc.DrawIcon( wxICON(mondrian), 10, 10 );
dc.DrawBitmap ( wxBITMAP (svgbitmap), 50,15);
s = wxT("Icon and Bitmap ");
break ;
}
m_child->SetStatusText(s);
}
// ---------------------------------------------------------------------------
// MyChild
// ---------------------------------------------------------------------------
MyChild::MyChild(wxMDIParentFrame *parent, const wxString& title,
const wxPoint& pos, const wxSize& size,
const long style)
: wxMDIChildFrame(parent, -1, title, pos, size, style)
{
m_frame = (MyFrame *) parent ;
CreateStatusBar();
SetStatusText(title);
int w, h ;
GetClientSize ( &w, &h );
m_canvas = new MyCanvas(this, wxPoint(0, 0), wxSize (w,h) );
// Give it scrollbars
m_canvas->SetScrollbars(20, 20, 50, 50);
}
MyChild::~MyChild()
{
m_frame->m_children.DeleteObject(this);
}
void MyChild::OnQuit(wxCommandEvent& WXUNUSED(event))
{
Close(TRUE);
}
bool MyChild::OnSave(wxString filename)
{
wxSVGFileDC svgDC (filename, 600, 650) ;
m_canvas->OnDraw (svgDC);
return svgDC.Ok();
}
void MyChild::OnActivate(wxActivateEvent& event)
{
if ( event.GetActive() && m_canvas )
m_canvas->SetFocus();
}
void MyChild::OnClose(wxCloseEvent& event)
{
event.Skip();
}
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