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added Roscale() test

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git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@45667 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Vadim Zeitlin
2007-04-26 13:05:41 +00:00
parent 1d8acb7d4d
commit 05a8831af2
1 changed files with 38 additions and 5 deletions
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41
samples/image/image.cpp
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@@ -142,7 +142,8 @@ private:
enum
{
ID_ROTATE_LEFT = 100,
ID_ROTATE_RIGHT
ID_ROTATE_RIGHT,
ID_RESIZE
};
class MyImageFrame : public wxFrame
@@ -152,12 +153,14 @@ public:
: wxFrame(parent, wxID_ANY,
wxString::Format(_T("Image from %s"), desc.c_str()),
wxDefaultPosition, wxDefaultSize,
wxCAPTION | wxSYSTEM_MENU | wxCLOSE_BOX),
wxDEFAULT_FRAME_STYLE | wxFULL_REPAINT_ON_RESIZE),
m_bitmap(bitmap)
{
wxMenu *menu = new wxMenu;
menu->Append(wxID_SAVE);
menu->AppendSeparator();
menu->Append(ID_RESIZE, _T("&Fit to window\tCtrl-F"));
menu->AppendSeparator();
menu->Append(ID_ROTATE_LEFT, _T("Rotate &left\tCtrl-L"));
menu->Append(ID_ROTATE_RIGHT, _T("Rotate &right\tCtrl-R"));
@@ -165,7 +168,11 @@ public:
mbar->Append(menu, _T("&Image"));
SetMenuBar(mbar);
CreateStatusBar();
SetClientSize(bitmap.GetWidth(), bitmap.GetHeight());
UpdateStatusBar();
}
void OnEraseBackground(wxEraseEvent& WXUNUSED(event))
@@ -176,7 +183,11 @@ public:
void OnPaint(wxPaintEvent& WXUNUSED(event))
{
wxPaintDC dc(this);
dc.DrawBitmap( m_bitmap, 0, 0, true /* use mask */ );
const wxSize size = GetClientSize();
dc.DrawBitmap(m_bitmap,
(size.x - m_bitmap.GetWidth())/2,
(size.y - m_bitmap.GetHeight())/2,
true /* use mask */);
}
void OnSave(wxCommandEvent& WXUNUSED(event))
@@ -305,6 +316,18 @@ public:
#endif // wxUSE_FILEDLG
}
void OnResize(wxCommandEvent& WXUNUSED(event))
{
wxImage img(m_bitmap.ConvertToImage());
const wxSize size = GetClientSize();
img.Rescale(size.x, size.y, wxIMAGE_QUALITY_HIGH);
m_bitmap = wxBitmap(img);
UpdateStatusBar();
Refresh();
}
void OnRotate(wxCommandEvent& event)
{
double angle = 5;
@@ -312,7 +335,7 @@ public:
angle = -angle;
wxImage img(m_bitmap.ConvertToImage());
img = img.Rotate(angle, wxPoint(0, 0));//wxPoint(img.GetWidth() / 2, img.GetHeight() / 2));
img = img.Rotate(angle, wxPoint(img.GetWidth() / 2, img.GetHeight() / 2));
if ( !img.Ok() )
{
wxLogWarning(_T("Rotation failed"));
@@ -320,10 +343,19 @@ public:
}
m_bitmap = wxBitmap(img);
UpdateStatusBar();
Refresh();
}
private:
void UpdateStatusBar()
{
wxLogStatus(this, _T("Image size: (%d, %d)"),
m_bitmap.GetWidth(),
m_bitmap.GetHeight());
}
wxBitmap m_bitmap;
DECLARE_EVENT_TABLE()
@@ -490,6 +522,7 @@ BEGIN_EVENT_TABLE(MyImageFrame, wxFrame)
EVT_MENU(wxID_SAVE, MyImageFrame::OnSave)
EVT_MENU_RANGE(ID_ROTATE_LEFT, ID_ROTATE_RIGHT, MyImageFrame::OnRotate)
EVT_MENU(ID_RESIZE, MyImageFrame::OnResize)
END_EVENT_TABLE()
#ifdef wxHAVE_RAW_BITMAP