samples/widgets/statbmp.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Program:     wxWidgets Widgets Sample
   3 // Name:        statbmp.cpp
   4 // Purpose:     Part of the widgets sample showing wxStaticBitmap
   5 // Author:      Marcin Wojdyr
   6 // Created:     2008-06-19
   7 // Id:          $Id$
   8 // Copyright:   (c) 2008 Marcin Wojdyr
   9 // License:     wxWindows license
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 // ============================================================================
  13 // declarations
  14 // ============================================================================
  15
  16 // ----------------------------------------------------------------------------
  17 // headers
  18 // ----------------------------------------------------------------------------
  19
  20 // for compilers that support precompilation, includes "wx/wx.h".
  21 #include "wx/wxprec.h"
  22
  23 #ifdef __BORLANDC__
  24     #pragma hdrstop
  25 #endif
  26
  27 // for all others, include the necessary headers
  28 #ifndef WX_PRECOMP
  29     #include "wx/log.h"
  30
  31     #include "wx/button.h"
  32     #include "wx/image.h"
  33     #include "wx/radiobox.h"
  34     #include "wx/statbmp.h"
  35     #include "wx/statbox.h"
  36     #include "wx/textctrl.h"
  37 #endif
  38
  39 #include "wx/generic/statbmpg.h"
  40 #include "wx/sizer.h"
  41 #include "wx/filepicker.h"
  42
  43 #include "widgets.h"
  44 #include "icons/statbmp.xpm"
  45
  46
  47 class StatBmpWidgetsPage : public WidgetsPage
  48 {
  49 public:
  50     StatBmpWidgetsPage(WidgetsBookCtrl *book, wxImageList *imaglist)
  51         : WidgetsPage(book, imaglist, statbmp_xpm) {}
  52
  53     virtual void CreateContent();
  54     virtual wxControl *GetWidget() const { return m_statbmp; }
  55     virtual void RecreateWidget();
  56
  57 private:
  58     void OnFileChange(wxFileDirPickerEvent &WXUNUSED(ev)) { RecreateWidget(); }
  59     void OnRadioChange(wxCommandEvent &WXUNUSED(ev)) { RecreateWidget(); }
  60
  61     void OnMouseEvent(wxMouseEvent& WXUNUSED(event))
  62     {
  63         wxLogMessage(wxT("wxStaticBitmap clicked."));
  64     }
  65
  66     wxStaticBitmapBase *m_statbmp;
  67     wxFilePickerCtrl *m_filepicker;
  68     wxRadioBox *m_radio;
  69     wxStaticBoxSizer *m_sbsizer;
  70
  71     DECLARE_WIDGETS_PAGE(StatBmpWidgetsPage)
  72 };
  73
  74 IMPLEMENT_WIDGETS_PAGE(StatBmpWidgetsPage, wxT("StaticBitmap"),
  75                        ALL_CTRLS);
  76
  77 void StatBmpWidgetsPage::CreateContent()
  78 {
  79
  80     static const wxString choices[] = { "native", "generic" };
  81     m_radio = new wxRadioBox(this, wxID_ANY, "implementation",
  82                              wxDefaultPosition, wxDefaultSize,
  83                              WXSIZEOF(choices), choices);
  84
  85     m_filepicker = new wxFilePickerCtrl(this, wxID_ANY, "../image/toucan.png");
  86
  87     m_sbsizer = new wxStaticBoxSizer(wxVERTICAL, this, "wxStaticBitmap inside");
  88
  89     wxSizer *leftsizer = new wxBoxSizer(wxVERTICAL);
  90     leftsizer->Add(m_radio, wxSizerFlags().Expand().Border());
  91     leftsizer->Add(m_filepicker, wxSizerFlags().Expand().Border());
  92     wxSizer *sizer = new wxBoxSizer(wxHORIZONTAL);
  93     sizer->Add(leftsizer, wxSizerFlags().Border());
  94     sizer->Add(m_sbsizer, wxSizerFlags().Center());
  95     SetSizer(sizer);
  96
  97     wxInitAllImageHandlers();
  98
  99     Connect(wxEVT_COMMAND_FILEPICKER_CHANGED,
 100             wxFileDirPickerEventHandler(StatBmpWidgetsPage::OnFileChange));
 101     Connect(wxEVT_COMMAND_RADIOBOX_SELECTED,
 102             wxCommandEventHandler(StatBmpWidgetsPage::OnRadioChange));
 103
 104     m_statbmp = NULL;
 105     RecreateWidget();
 106 }
 107
 108 void StatBmpWidgetsPage::RecreateWidget()
 109 {
 110     delete m_statbmp;
 111     wxString filepath = m_filepicker->GetPath();
 112     wxImage image(filepath);
 113     if (! image.Ok() )
 114     {
 115         wxLogMessage("Reading image from file '%s' failed.", filepath.c_str());
 116         m_statbmp = NULL;
 117         return;
 118     }
 119     if (m_radio->GetSelection() == 0)
 120         m_statbmp = new wxStaticBitmap(this, wxID_ANY, wxBitmap(image));
 121     else
 122         m_statbmp = new wxGenericStaticBitmap(this, wxID_ANY, wxBitmap(image));
 123     m_sbsizer->Add(m_statbmp, wxSizerFlags(1).Expand());
 124     GetSizer()->Layout();
 125     m_statbmp->Connect(wxEVT_LEFT_DOWN,
 126                        wxMouseEventHandler(StatBmpWidgetsPage::OnMouseEvent),
 127                        NULL, this);
 128     // When switching from generic to native control on wxMSW under Wine,
 129     // the explicit Refresh() is necessary
 130     m_statbmp->Refresh();
 131 }
 132