minimal 2

minimal2.patch

diff --git a/samples/minimal/minimal.cpp b/samples/minimal/minimal.cpp
index 65da9f35b6..9ea46da6fc 100644
--- a/samples/minimal/minimal.cpp
+++ b/samples/minimal/minimal.cpp
@@ -29,6 +29,8 @@
     #include "wx/wx.h"
 #endif
 
+#include <wx/artprov.h>
+
 // ----------------------------------------------------------------------------
 // resources
 // ----------------------------------------------------------------------------
@@ -67,6 +69,23 @@ public:
     void OnQuit(wxCommandEvent& event);
     void OnAbout(wxCommandEvent& event);
 
+private:
+    wxStaticBitmap *m_pBitmap1;
+    wxSlider *m_pSlider1;
+    wxSlider *m_pSlider2;
+    wxSlider *m_pSlider3;
+    wxSlider *m_pSlider4;
+    wxImage m_image;
+
+protected:
+    void ChangeHSVL();
+
+    // Virtual event handlers, overide them in your derived class
+    virtual void OnSlider1(wxCommandEvent& event);
+    virtual void OnSlider2(wxCommandEvent& event);
+    virtual void OnSlider3(wxCommandEvent& event);
+    virtual void OnSlider4(wxCommandEvent& event);
+
 private:
     // any class wishing to process wxWidgets events must use this macro
     wxDECLARE_EVENT_TABLE();
@@ -178,8 +197,78 @@ MyFrame::MyFrame(const wxString& title)
     CreateStatusBar(2);
     SetStatusText("Welcome to wxWidgets!");
 #endif // wxUSE_STATUSBAR
+
+    wxBitmap bmp = wxArtProvider::GetBitmap(wxART_INFORMATION, wxART_BUTTON, wxSize(256, 256));
+    m_image = bmp.ConvertToImage();
+
+    wxBoxSizer *pBoxSizer1;
+    pBoxSizer1 = new wxBoxSizer(wxVERTICAL);
+    m_pBitmap1 = new wxStaticBitmap(this, wxID_ANY, bmp);
+    pBoxSizer1->Add(m_pBitmap1, 1, wxALL | wxALIGN_CENTER_HORIZONTAL, 5);
+    wxStaticBoxSizer *pStcBoxSizer1;
+    pStcBoxSizer1 = new wxStaticBoxSizer(new wxStaticBox(this, wxID_ANY, wxT("Hue (°)")), wxHORIZONTAL);
+    m_pSlider1 = new wxSlider(pStcBoxSizer1->GetStaticBox(), wxID_ANY, 0, -360, 360, wxDefaultPosition, wxDefaultSize, wxSL_HORIZONTAL | wxSL_LABELS);
+    pStcBoxSizer1->Add(m_pSlider1, 1, wxALL | wxALIGN_CENTER_VERTICAL, 5);
+    pBoxSizer1->Add(pStcBoxSizer1, 0, wxEXPAND, 5);
+    wxStaticBoxSizer *pStcBoxSizer2;
+    pStcBoxSizer2 = new wxStaticBoxSizer(new wxStaticBox(this, wxID_ANY, wxT("Saturation (%)")), wxHORIZONTAL);
+    m_pSlider2 = new wxSlider(pStcBoxSizer2->GetStaticBox(), wxID_ANY, 0, -100, 100, wxDefaultPosition, wxDefaultSize, wxSL_HORIZONTAL | wxSL_LABELS);
+    pStcBoxSizer2->Add(m_pSlider2, 1, wxALL | wxALIGN_CENTER_VERTICAL, 5);
+    pBoxSizer1->Add(pStcBoxSizer2, 0, wxEXPAND, 5);
+    wxStaticBoxSizer *pStcBoxSizer3;
+    pStcBoxSizer3 = new wxStaticBoxSizer(new wxStaticBox(this, wxID_ANY, wxT("Brightness (value) (%)")), wxHORIZONTAL);
+    m_pSlider3 = new wxSlider(pStcBoxSizer3->GetStaticBox(), wxID_ANY, 0, -100, 100, wxDefaultPosition, wxDefaultSize, wxSL_HORIZONTAL | wxSL_LABELS);
+    pStcBoxSizer3->Add(m_pSlider3, 1, wxALL | wxALIGN_CENTER_VERTICAL, 5);
+    pBoxSizer1->Add(pStcBoxSizer3, 0, wxEXPAND, 5);
+    wxStaticBoxSizer *pStcBoxSizer4;
+    pStcBoxSizer4 = new wxStaticBoxSizer(new wxStaticBox(this, wxID_ANY, wxT("Lightness (via wxColour::ChangeLightness())")), wxHORIZONTAL);
+    m_pSlider4 = new wxSlider(pStcBoxSizer4->GetStaticBox(), wxID_ANY, 100, 0, 200, wxDefaultPosition, wxDefaultSize, wxSL_HORIZONTAL | wxSL_LABELS);
+    pStcBoxSizer4->Add(m_pSlider4, 1, wxALL | wxALIGN_CENTER_VERTICAL, 5);
+    pBoxSizer1->Add(pStcBoxSizer4, 0, wxEXPAND, 5);
+    SetSizer(pBoxSizer1);
+
+    // Connect Events
+    m_pSlider1->Connect(wxEVT_SLIDER, wxCommandEventHandler(MyFrame::OnSlider1), NULL, this);
+    m_pSlider2->Connect(wxEVT_SLIDER, wxCommandEventHandler(MyFrame::OnSlider2), NULL, this);
+    m_pSlider3->Connect(wxEVT_SLIDER, wxCommandEventHandler(MyFrame::OnSlider3), NULL, this);
+    m_pSlider4->Connect(wxEVT_SLIDER, wxCommandEventHandler(MyFrame::OnSlider4), NULL, this);
+}
+
+void MyFrame::ChangeHSVL()
+{
+    double angleH = m_pSlider1->GetValue() / 360.;
+    double factorS = m_pSlider2->GetValue() / 100.;
+    double factorV = m_pSlider3->GetValue() / 100.;
+    int ialpha = m_pSlider4->GetValue();
+    wxImage image = m_image;
+    image.ChangeHSV(angleH, factorS, factorV);
+    image = image.ChangeLightness(ialpha);
+    m_pBitmap1->SetBitmap(image);
+}
+
+void MyFrame::OnSlider1(wxCommandEvent& event)
+{
+    ChangeHSVL();
+    event.Skip();
 }
 
+void MyFrame::OnSlider2(wxCommandEvent& event)
+{
+    ChangeHSVL();
+    event.Skip();
+}
+
+void MyFrame::OnSlider3(wxCommandEvent& event)
+{
+    ChangeHSVL();
+    event.Skip();
+}
+
+void MyFrame::OnSlider4(wxCommandEvent& event)
+{
+    ChangeHSVL();
+    event.Skip();
+}
 
 // event handlers