470ee71463
Don't fail loudly if the image file is not found (which can happen under Unix if the image sample wasn't built yet or if we're not running the sample from its own directory) but just don't create the bitmap. git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@62770 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
145 lines
4.3 KiB
C++
145 lines
4.3 KiB
C++
/////////////////////////////////////////////////////////////////////////////
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// Program: wxWidgets Widgets Sample
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// Name: statbmp.cpp
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// Purpose: Part of the widgets sample showing wxStaticBitmap
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// Author: Marcin Wojdyr
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// Created: 2008-06-19
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// Id: $Id$
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// Copyright: (c) 2008 Marcin Wojdyr
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// License: wxWindows license
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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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// for all others, include the necessary headers
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#ifndef WX_PRECOMP
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#include "wx/log.h"
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#include "wx/button.h"
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#include "wx/image.h"
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#include "wx/radiobox.h"
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#include "wx/statbmp.h"
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#include "wx/statbox.h"
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#include "wx/textctrl.h"
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#endif
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#include "wx/filename.h"
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#include "wx/generic/statbmpg.h"
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#include "wx/sizer.h"
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#include "wx/filepicker.h"
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#include "widgets.h"
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#include "icons/statbmp.xpm"
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class StatBmpWidgetsPage : public WidgetsPage
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{
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public:
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StatBmpWidgetsPage(WidgetsBookCtrl *book, wxImageList *imaglist)
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: WidgetsPage(book, imaglist, statbmp_xpm) {}
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virtual void CreateContent();
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virtual wxControl *GetWidget() const { return m_statbmp; }
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virtual void RecreateWidget();
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private:
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void OnFileChange(wxFileDirPickerEvent &WXUNUSED(ev)) { RecreateWidget(); }
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void OnRadioChange(wxCommandEvent &WXUNUSED(ev)) { RecreateWidget(); }
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void OnMouseEvent(wxMouseEvent& WXUNUSED(event))
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{
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wxLogMessage(wxT("wxStaticBitmap clicked."));
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}
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wxStaticBitmapBase *m_statbmp;
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wxFilePickerCtrl *m_filepicker;
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wxRadioBox *m_radio;
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wxStaticBoxSizer *m_sbsizer;
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DECLARE_WIDGETS_PAGE(StatBmpWidgetsPage)
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};
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IMPLEMENT_WIDGETS_PAGE(StatBmpWidgetsPage, wxT("StaticBitmap"),
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ALL_CTRLS);
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void StatBmpWidgetsPage::CreateContent()
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{
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static const wxString choices[] = { "native", "generic" };
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m_radio = new wxRadioBox(this, wxID_ANY, "implementation",
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wxDefaultPosition, wxDefaultSize,
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WXSIZEOF(choices), choices);
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wxString testImage;
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#if wxUSE_LIBPNG
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wxFileName fn("../image/toucan.png");
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if ( fn.FileExists() )
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testImage = fn.GetFullPath();
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#endif // wxUSE_LIBPNG
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m_filepicker = new wxFilePickerCtrl(this, wxID_ANY, testImage);
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m_sbsizer = new wxStaticBoxSizer(wxVERTICAL, this, "wxStaticBitmap inside");
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wxSizer *leftsizer = new wxBoxSizer(wxVERTICAL);
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leftsizer->Add(m_radio, wxSizerFlags().Expand().Border());
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leftsizer->Add(m_filepicker, wxSizerFlags().Expand().Border());
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wxSizer *sizer = new wxBoxSizer(wxHORIZONTAL);
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sizer->Add(leftsizer, wxSizerFlags().Border());
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sizer->Add(m_sbsizer, wxSizerFlags().Center());
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SetSizer(sizer);
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wxInitAllImageHandlers();
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Connect(wxEVT_COMMAND_FILEPICKER_CHANGED,
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wxFileDirPickerEventHandler(StatBmpWidgetsPage::OnFileChange));
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Connect(wxEVT_COMMAND_RADIOBOX_SELECTED,
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wxCommandEventHandler(StatBmpWidgetsPage::OnRadioChange));
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m_statbmp = NULL;
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RecreateWidget();
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}
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void StatBmpWidgetsPage::RecreateWidget()
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{
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delete m_statbmp;
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m_statbmp = NULL;
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wxString filepath = m_filepicker->GetPath();
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if ( filepath.empty() )
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return;
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wxImage image(filepath);
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if (! image.Ok() )
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{
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wxLogMessage("Reading image from file '%s' failed.", filepath.c_str());
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return;
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}
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if (m_radio->GetSelection() == 0)
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m_statbmp = new wxStaticBitmap(this, wxID_ANY, wxBitmap(image));
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else
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m_statbmp = new wxGenericStaticBitmap(this, wxID_ANY, wxBitmap(image));
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m_sbsizer->Add(m_statbmp, wxSizerFlags(1).Expand());
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GetSizer()->Layout();
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m_statbmp->Connect(wxEVT_LEFT_DOWN,
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wxMouseEventHandler(StatBmpWidgetsPage::OnMouseEvent),
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NULL, this);
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// When switching from generic to native control on wxMSW under Wine,
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// the explicit Refresh() is necessary
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m_statbmp->Refresh();
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}
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