5276b0a53c
Use wxDELETE[A]() functions which automatically NULL out their arguments after deleting them instead of doing it manually. Closes #9685. git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@64656 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
144 lines
4.3 KiB
C++
144 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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wxDELETE(m_statbmp);
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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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