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 // Licence:     wxWindows licence
  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/filename.h"
  40
  41 #include "wx/generic/statbmpg.h"
  42 #include "wx/sizer.h"
  43 #include "wx/filepicker.h"
  44
  45 #include "widgets.h"
  46 #include "icons/statbmp.xpm"
  47
  48
  49 class StatBmpWidgetsPage : public WidgetsPage
  50 {
  51 public:
  52     StatBmpWidgetsPage(WidgetsBookCtrl *book, wxImageList *imaglist)
  53         : WidgetsPage(book, imaglist, statbmp_xpm) {}
  54
  55     virtual void CreateContent();
  56     virtual wxControl *GetWidget() const { return m_statbmp; }
  57     virtual void RecreateWidget();
  58
  59 private:
  60     void OnFileChange(wxFileDirPickerEvent &WXUNUSED(ev)) { RecreateWidget(); }
  61     void OnRadioChange(wxCommandEvent &WXUNUSED(ev)) { RecreateWidget(); }
  62
  63     void OnMouseEvent(wxMouseEvent& WXUNUSED(event))
  64     {
  65         wxLogMessage(wxT("wxStaticBitmap clicked."));
  66     }
  67
  68     wxStaticBitmapBase *m_statbmp;
  69     wxFilePickerCtrl *m_filepicker;
  70     wxRadioBox *m_radio;
  71     wxStaticBoxSizer *m_sbsizer;
  72
  73     DECLARE_WIDGETS_PAGE(StatBmpWidgetsPage)
  74 };
  75
  76 IMPLEMENT_WIDGETS_PAGE(StatBmpWidgetsPage, wxT("StaticBitmap"),
  77                        ALL_CTRLS);
  78
  79 void StatBmpWidgetsPage::CreateContent()
  80 {
  81
  82     static const wxString choices[] = { "native", "generic" };
  83     m_radio = new wxRadioBox(this, wxID_ANY, "implementation",
  84                              wxDefaultPosition, wxDefaultSize,
  85                              WXSIZEOF(choices), choices);
  86
  87     wxString testImage;
  88 #if wxUSE_LIBPNG
  89     wxFileName fn("../image/toucan.png");
  90     if ( fn.FileExists() )
  91         testImage = fn.GetFullPath();
  92 #endif // wxUSE_LIBPNG
  93     m_filepicker = new wxFilePickerCtrl(this, wxID_ANY, testImage);
  94
  95     m_sbsizer = new wxStaticBoxSizer(wxVERTICAL, this, "wxStaticBitmap inside");
  96
  97     wxSizer *leftsizer = new wxBoxSizer(wxVERTICAL);
  98     leftsizer->Add(m_radio, wxSizerFlags().Expand().Border());
  99     leftsizer->Add(m_filepicker, wxSizerFlags().Expand().Border());
 100     wxSizer *sizer = new wxBoxSizer(wxHORIZONTAL);
 101     sizer->Add(leftsizer, wxSizerFlags().Border());
 102     sizer->Add(m_sbsizer, wxSizerFlags().Center());
 103     SetSizer(sizer);
 104
 105     wxInitAllImageHandlers();
 106
 107     Connect(wxEVT_COMMAND_FILEPICKER_CHANGED,
 108             wxFileDirPickerEventHandler(StatBmpWidgetsPage::OnFileChange));
 109     Connect(wxEVT_COMMAND_RADIOBOX_SELECTED,
 110             wxCommandEventHandler(StatBmpWidgetsPage::OnRadioChange));
 111
 112     m_statbmp = NULL;
 113     RecreateWidget();
 114 }
 115
 116 void StatBmpWidgetsPage::RecreateWidget()
 117 {
 118     wxDELETE(m_statbmp);
 119
 120     wxString filepath = m_filepicker->GetPath();
 121     if ( filepath.empty() )
 122         return;
 123
 124     wxImage image(filepath);
 125     if (! image.Ok() )
 126     {
 127         wxLogMessage("Reading image from file '%s' failed.", filepath.c_str());
 128         return;
 129     }
 130     if (m_radio->GetSelection() == 0)
 131         m_statbmp = new wxStaticBitmap(this, wxID_ANY, wxBitmap(image));
 132     else
 133         m_statbmp = new wxGenericStaticBitmap(this, wxID_ANY, wxBitmap(image));
 134     m_sbsizer->Add(m_statbmp, wxSizerFlags(1).Expand());
 135     GetSizer()->Layout();
 136     m_statbmp->Connect(wxEVT_LEFT_DOWN,
 137                        wxMouseEventHandler(StatBmpWidgetsPage::OnMouseEvent),
 138                        NULL, this);
 139     // When switching from generic to native control on wxMSW under Wine,
 140     // the explicit Refresh() is necessary
 141     m_statbmp->Refresh();
 142 }
 143