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/radiobox.h"
  33     #include "wx/statbmp.h"
  34     #include "wx/statbox.h"
  35     #include "wx/textctrl.h"
  36 #endif
  37
  38 #include "wx/generic/statbmpg.h"
  39 #include "wx/sizer.h"
  40 #include "wx/filepicker.h"
  41
  42 #include "widgets.h"
  43 #include "icons/statbmp.xpm"
  44
  45
  46 class StatBmpWidgetsPage : public WidgetsPage
  47 {
  48 public:
  49     StatBmpWidgetsPage(WidgetsBookCtrl *book, wxImageList *imaglist)
  50         : WidgetsPage(book, imaglist, statbmp_xpm) {}
  51
  52     virtual void CreateContent();
  53     virtual wxControl *GetWidget() const { return m_statbmp; }
  54     virtual void RecreateWidget();
  55
  56 private:
  57     void OnFileChange(wxFileDirPickerEvent &WXUNUSED(ev)) { RecreateWidget(); }
  58     void OnRadioChange(wxCommandEvent &WXUNUSED(ev)) { RecreateWidget(); }
  59
  60     void OnMouseEvent(wxMouseEvent& WXUNUSED(event))
  61     {
  62         wxLogMessage(wxT("wxStaticBitmap clicked."));
  63     }
  64
  65     wxStaticBitmapBase *m_statbmp;
  66     wxFilePickerCtrl *m_filepicker;
  67     wxRadioBox *m_radio;
  68     wxStaticBoxSizer *m_sbsizer;
  69
  70     DECLARE_WIDGETS_PAGE(StatBmpWidgetsPage)
  71 };
  72
  73 IMPLEMENT_WIDGETS_PAGE(StatBmpWidgetsPage, wxT("StaticBitmap"),
  74                        ALL_CTRLS);
  75
  76 void StatBmpWidgetsPage::CreateContent()
  77 {
  78
  79     static const wxString choices[] = { "native", "generic" };
  80     m_radio = new wxRadioBox(this, wxID_ANY, "implementation",
  81                              wxDefaultPosition, wxDefaultSize,
  82                              WXSIZEOF(choices), choices);
  83
  84     m_filepicker = new wxFilePickerCtrl(this, wxID_ANY, "../image/toucan.png");
  85
  86     m_sbsizer = new wxStaticBoxSizer(wxVERTICAL, this, "wxStaticBitmap inside");
  87
  88     wxSizer *leftsizer = new wxBoxSizer(wxVERTICAL);
  89     leftsizer->Add(m_radio, wxSizerFlags().Expand().Border());
  90     leftsizer->Add(m_filepicker, wxSizerFlags().Expand().Border());
  91     wxSizer *sizer = new wxBoxSizer(wxHORIZONTAL);
  92     sizer->Add(leftsizer, wxSizerFlags().Border());
  93     sizer->Add(m_sbsizer, wxSizerFlags().Center());
  94     SetSizer(sizer);
  95
  96     wxInitAllImageHandlers();
  97
  98     Connect(wxEVT_COMMAND_FILEPICKER_CHANGED,
  99             wxFileDirPickerEventHandler(StatBmpWidgetsPage::OnFileChange));
 100     Connect(wxEVT_COMMAND_RADIOBOX_SELECTED,
 101             wxCommandEventHandler(StatBmpWidgetsPage::OnRadioChange));
 102
 103     m_statbmp = NULL;
 104     RecreateWidget();
 105 }
 106
 107 void StatBmpWidgetsPage::RecreateWidget()
 108 {
 109     delete m_statbmp;
 110     wxString filepath = m_filepicker->GetPath();
 111     wxImage image(filepath);
 112     if (! image.Ok() )
 113     {
 114         wxLogMessage("Reading image from file '%s' failed.", filepath.c_str());
 115         m_statbmp = NULL;
 116         return;
 117     }
 118     if (m_radio->GetSelection() == 0)
 119         m_statbmp = new wxStaticBitmap(this, wxID_ANY, wxBitmap(image));
 120     else
 121         m_statbmp = new wxGenericStaticBitmap(this, wxID_ANY, wxBitmap(image));
 122     m_sbsizer->Add(m_statbmp, wxSizerFlags(1).Expand());
 123     GetSizer()->Layout();
 124     m_statbmp->Connect(wxEVT_LEFT_DOWN,
 125                        wxMouseEventHandler(StatBmpWidgetsPage::OnMouseEvent),
 126                        NULL, this);
 127     // When switching from generic to native control on wxMSW under Wine,
 128     // the explicit Refresh() is necessary
 129     m_statbmp->Refresh();
 130 }
 131