660 lines
20 KiB
C++
660 lines
20 KiB
C++
/////////////////////////////////////////////////////////////////////////////
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// Name: svgtest.cpp
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// Purpose: SVG sample
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// Author: Chris Elliott
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// Modified by:
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// Licence: wxWindows licence
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/////////////////////////////////////////////////////////////////////////////
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// ===========================================================================
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// declarations
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// ===========================================================================
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// ---------------------------------------------------------------------------
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// headers
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// ---------------------------------------------------------------------------
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// For compilers that support precompilation, includes "wx/wx.h".
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#include "wx/wxprec.h"
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#ifdef __BORLANDC__
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#pragma hdrstop
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#endif
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#ifndef WX_PRECOMP
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#include "wx/wx.h"
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#include "wx/mdi.h"
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#endif
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#include "wx/toolbar.h"
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#include "wx/dcsvg.h"
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#include "wx/vector.h"
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#include "bitmaps/new.xpm"
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#include "bitmaps/save.xpm"
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#include "bitmaps/help.xpm"
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#include "SVGlogo24.xpm"
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#ifndef wxHAS_IMAGES_IN_RESOURCES
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#include "../sample.xpm"
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#endif
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#include <math.h>
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class MyChild;
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class MyCanvas;
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// ---------------------------------------------------------------------------
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// classes
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// ---------------------------------------------------------------------------
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class MyApp : public wxApp
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{
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public:
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bool OnInit();
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};
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class MyFrame : public wxMDIParentFrame
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{
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public:
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MyFrame(wxWindow *parent, const wxWindowID id, const wxString& title,
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const wxPoint& pos, const wxSize& size, const long style);
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void InitToolBar(wxToolBar* toolBar);
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void OnSize(wxSizeEvent& event);
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void OnAbout(wxCommandEvent& event);
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void OnNewWindow(wxCommandEvent& event);
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void OnQuit(wxCommandEvent& event);
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void FileSavePicture (wxCommandEvent& event);
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unsigned int GetCountOfChildren() const
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{ return m_nWinCreated; }
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private:
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unsigned int m_nWinCreated;
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wxDECLARE_EVENT_TABLE();
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};
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class MyChild: public wxMDIChildFrame
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{
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public:
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MyChild(wxMDIParentFrame *parent, const wxString& title,
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const wxPoint& pos = wxDefaultPosition,
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const wxSize& size = wxDefaultSize,
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const long style = wxDEFAULT_FRAME_STYLE);
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~MyChild();
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void OnActivate(wxActivateEvent& event);
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void OnQuit(wxCommandEvent& event);
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bool OnSave(wxString filename);
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MyFrame* GetFrame()
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{ return m_frame; }
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private:
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MyCanvas *m_canvas;
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MyFrame *m_frame;
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wxDECLARE_EVENT_TABLE();
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};
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class MyCanvas : public wxScrolledWindow
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{
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public:
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MyCanvas(MyChild *parent, const wxPoint& pos, const wxSize& size);
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virtual void OnDraw(wxDC& dc);
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private:
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int m_index;
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MyChild* m_child;
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wxDECLARE_EVENT_TABLE();
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};
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// ---------------------------------------------------------------------------
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// constants
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// ---------------------------------------------------------------------------
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// menu items ids
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enum
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{
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MDI_QUIT = 100,
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MDI_NEW_WINDOW,
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MDI_SAVE,
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MDI_REFRESH,
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MDI_CHILD_QUIT,
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MDI_ABOUT
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};
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// ---------------------------------------------------------------------------
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// event tables
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// ---------------------------------------------------------------------------
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wxBEGIN_EVENT_TABLE(MyFrame, wxMDIParentFrame)
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EVT_MENU(MDI_ABOUT, MyFrame::OnAbout)
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EVT_MENU(MDI_NEW_WINDOW, MyFrame::OnNewWindow)
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EVT_MENU(MDI_QUIT, MyFrame::OnQuit)
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EVT_MENU (MDI_SAVE, MyFrame::FileSavePicture)
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EVT_SIZE(MyFrame::OnSize)
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wxEND_EVENT_TABLE()
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// ===========================================================================
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// implementation
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// ===========================================================================
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// ---------------------------------------------------------------------------
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// MyApp
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// ---------------------------------------------------------------------------
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IMPLEMENT_APP(MyApp)
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bool MyApp::OnInit()
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{
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// Create the main frame window
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MyFrame* frame = new MyFrame((wxFrame *)NULL, -1, wxT("SVG Demo"),
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wxDefaultPosition, wxSize(500, 400),
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wxDEFAULT_FRAME_STYLE | wxHSCROLL | wxVSCROLL);
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frame->Show(true);
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return true;
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}
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// ---------------------------------------------------------------------------
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// MyFrame
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// ---------------------------------------------------------------------------
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// Define my frame constructor
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MyFrame::MyFrame(wxWindow *parent, const wxWindowID id, const wxString& title,
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const wxPoint& pos, const wxSize& size, const long style)
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: wxMDIParentFrame(parent, id, title, pos, size, style)
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{
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m_nWinCreated = 0;
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SetIcon(wxICON(sample));
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// Make a menubar
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wxMenu *file_menu = new wxMenu;
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file_menu->Append(MDI_NEW_WINDOW, wxT("&New test\tCtrl+N"));
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file_menu->Append(MDI_QUIT, wxT("&Exit\tAlt+X"));
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wxMenu *help_menu = new wxMenu;
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help_menu->Append(MDI_ABOUT, wxT("&About"));
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wxMenuBar *menu_bar = new wxMenuBar;
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menu_bar->Append(file_menu, wxT("&File"));
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menu_bar->Append(help_menu, wxT("&Help"));
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// Associate the menu bar with the frame
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SetMenuBar(menu_bar);
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#if wxUSE_STATUSBAR
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CreateStatusBar();
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#endif // wxUSE_STATUSBAR
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CreateToolBar(wxNO_BORDER | wxTB_FLAT | wxTB_HORIZONTAL);
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InitToolBar(GetToolBar());
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}
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void MyFrame::OnQuit(wxCommandEvent& WXUNUSED(event))
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{
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Close();
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}
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void MyFrame::OnAbout(wxCommandEvent& WXUNUSED(event) )
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{
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(void)wxMessageBox(wxT("wxWidgets SVG sample\n")
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wxT("Author: Chris Elliott (c) 2002-2009\n")
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wxT("Usage: click File|New to show tests"),
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wxT("About SVG Test"));
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}
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void MyFrame::OnNewWindow(wxCommandEvent& WXUNUSED(event) )
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{
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// Make another frame, containing a canvas
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MyChild *subframe = new MyChild(this, wxT("SVG Frame"));
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wxString title;
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title.Printf(wxT("SVG Test Window %d"), m_nWinCreated );
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// counts number of children previously, even if now closed
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m_nWinCreated ++;
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// Give it a title and icon
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subframe->SetTitle(title);
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subframe->SetIcon(wxICON(sample));
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// Make a menubar
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wxMenu *file_menu = new wxMenu;
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file_menu->Append(MDI_NEW_WINDOW, wxT("&Another test\tCtrl+N"));
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file_menu->Append(MDI_SAVE, wxT("&Save\tCtrl+S"), wxT("Save in SVG format"));
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file_menu->Append(MDI_CHILD_QUIT, wxT("&Close child\tCtrl+F4"));
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file_menu->Append(MDI_QUIT, wxT("&Exit\tAlt+X"));
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wxMenu *help_menu = new wxMenu;
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help_menu->Append(MDI_ABOUT, wxT("&About"));
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wxMenuBar *menu_bar = new wxMenuBar;
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menu_bar->Append(file_menu, wxT("&File"));
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menu_bar->Append(help_menu, wxT("&Help"));
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// Associate the menu bar with the frame
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subframe->SetMenuBar(menu_bar);
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subframe->Show(true);
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}
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void MyFrame::OnSize(wxSizeEvent& event)
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{
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int w, h;
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GetClientSize(&w, &h);
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GetClientWindow()->SetSize(0, 0, w, h);
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event.Skip();
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}
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void MyFrame::InitToolBar(wxToolBar* toolBar)
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{
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const int maxBitmaps = 3;
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wxBitmap* bitmaps[maxBitmaps];
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bitmaps[0] = new wxBitmap( new_xpm );
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bitmaps[1] = new wxBitmap( save_xpm );
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bitmaps[2] = new wxBitmap( help_xpm );
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toolBar->AddTool(MDI_NEW_WINDOW, wxEmptyString, *(bitmaps[0]), wxS("New SVG test window"));
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toolBar->AddTool(MDI_SAVE, wxEmptyString, *bitmaps[1], wxS("Save test in SVG format"));
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toolBar->AddSeparator();
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toolBar->AddTool(MDI_ABOUT, wxEmptyString, *bitmaps[2], wxS("Help"));
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toolBar->Realize();
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int i;
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for (i = 0; i < maxBitmaps; i++)
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delete bitmaps[i];
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}
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void MyFrame::FileSavePicture (wxCommandEvent & WXUNUSED(event) )
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{
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#if wxUSE_FILEDLG
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MyChild * pChild = (MyChild *)GetActiveChild();
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if (pChild == NULL)
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{
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return;
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}
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wxFileDialog dialog(this, wxT("Save Picture as"), wxEmptyString, pChild->GetTitle(),
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wxT("SVG vector picture files (*.svg)|*.svg"),
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wxFD_SAVE|wxFD_OVERWRITE_PROMPT);
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if (dialog.ShowModal() == wxID_OK)
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{
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if (!pChild->OnSave ( dialog.GetPath() ))
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{
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return;
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}
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}
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return;
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#endif // wxUSE_FILEDLG
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}
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// ---------------------------------------------------------------------------
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// MyCanvas
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// ---------------------------------------------------------------------------
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wxBEGIN_EVENT_TABLE(MyCanvas, wxScrolledWindow)
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wxEND_EVENT_TABLE()
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// Define a constructor for my canvas
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MyCanvas::MyCanvas(MyChild *parent, const wxPoint& pos, const wxSize& size)
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: wxScrolledWindow(parent, wxID_ANY, pos, size, wxSUNKEN_BORDER|wxVSCROLL|wxHSCROLL)
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{
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SetBackgroundColour(*wxWHITE);
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m_child = parent;
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m_index = m_child->GetFrame()->GetCountOfChildren() % 9;
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}
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// Define the repainting behaviour
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void MyCanvas::OnDraw(wxDC& dc)
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{
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// vars to use ...
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#if wxUSE_STATUSBAR
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wxString s;
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#endif // wxUSE_STATUSBAR
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wxPen wP;
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wxBrush wB;
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wxPoint points[6];
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wxColour wC;
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wxFont wF;
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dc.SetFont(*wxSWISS_FONT);
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dc.SetPen(*wxGREEN_PEN);
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switch (m_index)
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{
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default:
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case 0:
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// draw lines to make a cross
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dc.DrawLine(0, 0, 200, 200);
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dc.DrawLine(200, 0, 0, 200);
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// draw point colored line and spline
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wP = *wxCYAN_PEN;
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wP.SetWidth(3);
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dc.SetPen(wP);
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dc.DrawPoint (25,15);
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dc.DrawLine(50, 30, 200, 30);
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dc.DrawSpline(50, 200, 50, 100, 200, 10);
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#if wxUSE_STATUSBAR
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s = wxT("Green Cross, Cyan Line and spline");
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#endif // wxUSE_STATUSBAR
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break;
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case 1:
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// draw standard shapes
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dc.SetBrush(*wxCYAN_BRUSH);
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dc.SetPen(*wxRED_PEN);
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dc.DrawRectangle(10, 10, 100, 70);
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wB = wxBrush (wxT("DARK ORCHID"), wxBRUSHSTYLE_TRANSPARENT);
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dc.SetBrush (wB);
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dc.DrawRoundedRectangle(50, 50, 100, 70, 20);
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dc.SetBrush (wxBrush(wxT("GOLDENROD")) );
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dc.DrawEllipse(100, 100, 100, 50);
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points[0].x = 100; points[0].y = 200;
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points[1].x = 70; points[1].y = 260;
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points[2].x = 160; points[2].y = 230;
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points[3].x = 40; points[3].y = 230;
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points[4].x = 130; points[4].y = 260;
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points[5].x = 100; points[5].y = 200;
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dc.DrawPolygon(5, points);
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dc.DrawLines (6, points, 160);
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#if wxUSE_STATUSBAR
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s = wxT("Blue rectangle, red edge, clear rounded rectangle, gold ellipse, gold and clear stars");
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#endif // wxUSE_STATUSBAR
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break;
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case 2:
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// draw text in Arial or similar font
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dc.DrawLine(50,25,50,35);
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dc.DrawLine(45,30,55,30);
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dc.DrawText(wxT("This is a Swiss-style string"), 50, 30);
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wC = dc.GetTextForeground();
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dc.SetTextForeground (wxT("FIREBRICK"));
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// no effect in msw ??
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dc.SetTextBackground (wxT("WHEAT"));
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dc.DrawText(wxT("This is a Red string"), 50, 200);
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dc.DrawRotatedText(wxT("This is a 45 deg string"), 50, 200, 45);
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dc.DrawRotatedText(wxT("This is a 90 deg string"), 50, 200, 90);
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wF = wxFont ( 18, wxROMAN, wxITALIC, wxBOLD, false, wxT("Times New Roman"));
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dc.SetFont(wF);
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dc.SetTextForeground (wC);
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dc.DrawText(wxT("This is a Times-style string"), 50, 60);
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#if wxUSE_STATUSBAR
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s = wxT("Swiss, Times text; red text, rotated and colored orange");
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#endif // wxUSE_STATUSBAR
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break;
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case 3 :
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// four arcs start and end points, center
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dc.SetBrush(*wxGREEN_BRUSH);
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dc.DrawArc ( 200,300, 370,230, 300,300 );
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dc.SetBrush(*wxBLUE_BRUSH);
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dc.DrawArc ( 270-50, 270-86, 270-86, 270-50, 270,270 );
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dc.SetDeviceOrigin(-10,-10);
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dc.DrawArc ( 270-50, 270-86, 270-86, 270-50, 270,270 );
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dc.SetDeviceOrigin(0,0);
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wP.SetColour (wxT("CADET BLUE"));
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dc.SetPen(wP);
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dc.DrawArc ( 75,125, 110, 40, 75, 75 );
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wP.SetColour (wxT("SALMON"));
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dc.SetPen(wP);
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dc.SetBrush(*wxRED_BRUSH);
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//top left corner, width and height, start and end angle
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// 315 same center and x-radius as last pie-arc, half Y radius
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dc.DrawEllipticArc(25,50,100,50,180.0,45.0);
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wP = *wxCYAN_PEN;
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wP.SetWidth(3);
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dc.SetPen(wP);
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//wxTRANSPARENT));
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dc.SetBrush (wxBrush (wxT("SALMON")));
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dc.DrawEllipticArc(300, 0,200,100, 0.0,145.0);
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//same end point
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dc.DrawEllipticArc(300, 50,200,100,90.0,145.0);
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dc.DrawEllipticArc(300,100,200,100,90.0,345.0);
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#if wxUSE_STATUSBAR
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s = wxT("This is an arc test page");
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#endif // wxUSE_STATUSBAR
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break;
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case 4:
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dc.DrawCheckMark ( 30,30,25,25);
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dc.SetBrush (wxBrush (wxT("SALMON"),wxBRUSHSTYLE_TRANSPARENT));
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dc.DrawCheckMark ( 80,50,75,75);
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dc.DrawRectangle ( 80,50,75,75);
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#if wxUSE_STATUSBAR
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s = wxT("Two check marks");
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#endif // wxUSE_STATUSBAR
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break;
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case 5:
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wF = wxFont ( 18, wxROMAN, wxITALIC, wxBOLD, false, wxT("Times New Roman"));
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dc.SetFont(wF);
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dc.DrawLine(0, 0, 200, 200);
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dc.DrawLine(200, 0, 0, 200);
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dc.DrawText(wxT("This is an 18pt string"), 50, 60);
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// rescale and draw in blue
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wP = *wxCYAN_PEN;
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dc.SetPen(wP);
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dc.SetUserScale (2.0,0.5);
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dc.SetDeviceOrigin(200,0);
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dc.DrawLine(0, 0, 200, 200);
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dc.DrawLine(200, 0, 0, 200);
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dc.DrawText(wxT("This is an 18pt string 2 x 0.5 UserScaled"), 50, 60);
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dc.SetUserScale (2.0,2.0);
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dc.SetDeviceOrigin(200,200);
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dc.DrawText(wxT("This is an 18pt string 2 x 2 UserScaled"), 50, 60);
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wP = *wxRED_PEN;
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dc.SetPen(wP);
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dc.SetUserScale (1.0,1.0);
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dc.SetDeviceOrigin(0,10);
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dc.SetMapMode (wxMM_METRIC); //svg ignores this
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dc.DrawLine(0, 0, 200, 200);
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dc.DrawLine(200, 0, 0, 200);
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dc.DrawText(wxT("This is an 18pt string in MapMode"), 50, 60);
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#if wxUSE_STATUSBAR
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s = wxT("Scaling test page");
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#endif // wxUSE_STATUSBAR
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break;
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case 6:
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dc.DrawIcon( wxICON(sample), 10, 10 );
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dc.DrawBitmap ( wxBitmap(svgbitmap_xpm), 50,15);
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#if wxUSE_STATUSBAR
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s = wxT("Icon and Bitmap ");
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#endif // wxUSE_STATUSBAR
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break;
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case 7:
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dc.SetTextForeground(wxT("RED"));
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dc.DrawText(wxT("Red = Clipping Off"), 30, 5);
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dc.SetTextForeground(wxT("GREEN"));
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dc.DrawText(wxT("Green = Clipping On"), 30, 25);
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dc.SetTextForeground(wxT("BLACK"));
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dc.SetPen(*wxRED_PEN);
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dc.SetBrush (wxBrush (wxT("SALMON"),wxBRUSHSTYLE_TRANSPARENT));
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dc.DrawCheckMark ( 80,50,75,75);
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dc.DrawRectangle ( 80,50,75,75);
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dc.SetPen(*wxGREEN_PEN);
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// Clipped checkmarks
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dc.DrawRectangle(180,50,75,75);
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dc.SetClippingRegion(180,50,75,75); // x,y,width,height version
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dc.DrawCheckMark ( 180,50,75,75);
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dc.DestroyClippingRegion();
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dc.DrawRectangle(wxRect(80,150,75,75));
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dc.SetClippingRegion(wxPoint(80,150),wxSize(75,75)); // pt,size version
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dc.DrawCheckMark ( 80,150,75,75);
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dc.DestroyClippingRegion();
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dc.DrawRectangle(wxRect(180,150,75,75));
|
|
dc.SetClippingRegion(wxRect(180,150,75,75)); // rect version
|
|
dc.DrawCheckMark ( 180,150,75,75);
|
|
dc.DestroyClippingRegion();
|
|
|
|
dc.DrawRectangle(wxRect( 80,250,50,65));
|
|
dc.DrawRectangle(wxRect(105,260,50,65));
|
|
dc.SetClippingRegion(wxRect( 80,250,50,65)); // second call to SetClippingRegion
|
|
dc.SetClippingRegion(wxRect(105,260,50,65)); // forms intersection with previous
|
|
dc.DrawCheckMark(80,250,75,75);
|
|
dc.DestroyClippingRegion(); // only one call to destroy (there's no stack)
|
|
|
|
/*
|
|
** Clipping by wxRegion not implemented for SVG. Should be
|
|
** possible, but need to access points that define the wxRegion
|
|
** from inside DoSetDeviceClippingRegion() and wxRegion does not
|
|
** implement anything like getPoints().
|
|
points[0].x = 180; points[0].y = 250;
|
|
points[1].x = 255; points[1].y = 250;
|
|
points[2].x = 180; points[2].y = 325;
|
|
points[3].x = 255; points[3].y = 325;
|
|
points[4].x = 180; points[4].y = 250;
|
|
|
|
dc.DrawLines (5, points);
|
|
wxRegion reg = wxRegion(5,points);
|
|
|
|
dc.SetClippingRegion(reg);
|
|
dc.DrawCheckMark ( 180,250,75,75);
|
|
dc.DestroyClippingRegion();
|
|
*/
|
|
|
|
#if wxUSE_STATUSBAR
|
|
s = wxT("Clipping region");
|
|
#endif // wxUSE_STATUSBAR
|
|
break;
|
|
|
|
case 8:
|
|
wxString txtStr;
|
|
wxCoord txtX, txtY, txtW, txtH, txtDescent, txtEL;
|
|
wxCoord txtPad = 0;
|
|
|
|
wP = *wxRED_PEN;
|
|
dc.SetPen(wP);
|
|
//dc.SetBackgroundMode(wxBRUSHSTYLE_SOLID);
|
|
//dc.SetTextBackground(*wxBLUE);
|
|
|
|
// Horizontal text
|
|
txtStr = wxT("Horizontal string");
|
|
dc.GetTextExtent(txtStr, &txtW, &txtH, &txtDescent, &txtEL);
|
|
txtX = 50;
|
|
txtY = 300;
|
|
dc.DrawRectangle(txtX, txtY, txtW + 2*txtPad, txtH + 2*txtPad);
|
|
dc.DrawText(txtStr, txtX + txtPad, txtY + txtPad);
|
|
|
|
// Vertical text
|
|
txtStr = wxT("Vertical string");
|
|
dc.GetTextExtent(txtStr, &txtW, &txtH, &txtDescent, &txtEL);
|
|
txtX = 50;
|
|
txtY = 250;
|
|
dc.DrawRectangle(txtX, txtY - (txtW + 2*txtPad), txtH + 2*txtPad, txtW + 2*txtPad);
|
|
dc.DrawRotatedText(txtStr, txtX + txtPad, txtY - txtPad, 90);
|
|
|
|
// 45 degree text
|
|
txtStr = wxT("45 deg string");
|
|
dc.GetTextExtent(txtStr, &txtW, &txtH, &txtDescent, &txtEL);
|
|
double lenW = (double)(txtW + 2*txtPad) / sqrt(2.0);
|
|
double lenH = (double)(txtH + 2*txtPad) / sqrt(2.0);
|
|
double padding = (double)txtPad / sqrt(2.0);
|
|
txtX = 150;
|
|
txtY = 200;
|
|
dc.DrawLine(txtX - padding, txtY, txtX + lenW, txtY - lenW); // top
|
|
dc.DrawLine(txtX + lenW, txtY - lenW, txtX - padding + lenH + lenW, txtY + (lenH - lenW));
|
|
dc.DrawLine(txtX - padding, txtY, txtX - padding + lenH, txtY + lenH);
|
|
dc.DrawLine(txtX - padding + lenH, txtY + lenH, txtX - padding + lenH + lenW, txtY + (lenH - lenW)); // bottom
|
|
dc.DrawRotatedText(txtStr, txtX, txtY, 45);
|
|
#if wxUSE_STATUSBAR
|
|
s = wxT("Text position test page");
|
|
#endif // wxUSE_STATUSBAR
|
|
break;
|
|
}
|
|
#if wxUSE_STATUSBAR
|
|
m_child->SetStatusText(s);
|
|
#endif // wxUSE_STATUSBAR
|
|
}
|
|
|
|
|
|
// ---------------------------------------------------------------------------
|
|
// MyChild
|
|
// ---------------------------------------------------------------------------
|
|
|
|
// 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.
|
|
wxBEGIN_EVENT_TABLE(MyChild, wxMDIChildFrame)
|
|
EVT_MENU(MDI_CHILD_QUIT, MyChild::OnQuit)
|
|
wxEND_EVENT_TABLE()
|
|
|
|
MyChild::MyChild(wxMDIParentFrame *parent, const wxString& title,
|
|
const wxPoint& pos, const wxSize& size,
|
|
const long style)
|
|
: wxMDIChildFrame(parent, wxID_ANY, title, pos, size, style)
|
|
{
|
|
m_frame = (MyFrame *) parent;
|
|
|
|
#if wxUSE_STATUSBAR
|
|
CreateStatusBar();
|
|
SetStatusText(title);
|
|
#endif // wxUSE_STATUSBAR
|
|
|
|
m_canvas = new MyCanvas(this, wxPoint(0, 0), GetClientSize());
|
|
|
|
// Give it scrollbars
|
|
m_canvas->SetScrollbars(20, 20, 50, 50);
|
|
}
|
|
|
|
MyChild::~MyChild()
|
|
{
|
|
}
|
|
|
|
void MyChild::OnQuit(wxCommandEvent& WXUNUSED(event))
|
|
{
|
|
Close(true);
|
|
}
|
|
|
|
bool MyChild::OnSave(wxString filename)
|
|
{
|
|
wxSVGFileDC svgDC (filename, 600, 650);
|
|
m_canvas->OnDraw (svgDC);
|
|
return svgDC.IsOk();
|
|
}
|
|
|
|
void MyChild::OnActivate(wxActivateEvent& event)
|
|
{
|
|
if ( event.GetActive() && m_canvas )
|
|
m_canvas->SetFocus();
|
|
}
|
|
|