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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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43
samples/image/image.cpp
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@@ -142,7 +142,8 @@ private:
enum enum
{ {
ID_ROTATE_LEFT = 100, ID_ROTATE_LEFT = 100,
ID_ROTATE_RIGHT ID_ROTATE_RIGHT,
ID_RESIZE
}; };
class MyImageFrame : public wxFrame class MyImageFrame : public wxFrame
@@ -152,12 +153,14 @@ public:
: wxFrame(parent, wxID_ANY, : wxFrame(parent, wxID_ANY,
wxString::Format(_T("Image from %s"), desc.c_str()), wxString::Format(_T("Image from %s"), desc.c_str()),
wxDefaultPosition, wxDefaultSize, wxDefaultPosition, wxDefaultSize,
wxCAPTION | wxSYSTEM_MENU | wxCLOSE_BOX), wxDEFAULT_FRAME_STYLE | wxFULL_REPAINT_ON_RESIZE),
m_bitmap(bitmap) m_bitmap(bitmap)
{ {
wxMenu *menu = new wxMenu; wxMenu *menu = new wxMenu;
menu->Append(wxID_SAVE); menu->Append(wxID_SAVE);
menu->AppendSeparator(); 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_LEFT, _T("Rotate &left\tCtrl-L"));
menu->Append(ID_ROTATE_RIGHT, _T("Rotate &right\tCtrl-R")); menu->Append(ID_ROTATE_RIGHT, _T("Rotate &right\tCtrl-R"));
@@ -165,7 +168,11 @@ public:
mbar->Append(menu, _T("&Image")); mbar->Append(menu, _T("&Image"));
SetMenuBar(mbar); SetMenuBar(mbar);
CreateStatusBar();
SetClientSize(bitmap.GetWidth(), bitmap.GetHeight()); SetClientSize(bitmap.GetWidth(), bitmap.GetHeight());
UpdateStatusBar();
} }
void OnEraseBackground(wxEraseEvent& WXUNUSED(event)) void OnEraseBackground(wxEraseEvent& WXUNUSED(event))
@@ -175,8 +182,12 @@ public:
void OnPaint(wxPaintEvent& WXUNUSED(event)) void OnPaint(wxPaintEvent& WXUNUSED(event))
{ {
wxPaintDC dc( this ); 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)) void OnSave(wxCommandEvent& WXUNUSED(event))
@@ -305,6 +316,18 @@ public:
#endif // wxUSE_FILEDLG #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) void OnRotate(wxCommandEvent& event)
{ {
double angle = 5; double angle = 5;
@@ -312,7 +335,7 @@ public:
angle = -angle; angle = -angle;
wxImage img(m_bitmap.ConvertToImage()); 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() ) if ( !img.Ok() )
{ {
wxLogWarning(_T("Rotation failed")); wxLogWarning(_T("Rotation failed"));
@@ -320,10 +343,19 @@ public:
} }
m_bitmap = wxBitmap(img); m_bitmap = wxBitmap(img);
UpdateStatusBar();
Refresh(); Refresh();
} }
private: private:
void UpdateStatusBar()
{
wxLogStatus(this, _T("Image size: (%d, %d)"),
m_bitmap.GetWidth(),
m_bitmap.GetHeight());
}
wxBitmap m_bitmap; wxBitmap m_bitmap;
DECLARE_EVENT_TABLE() DECLARE_EVENT_TABLE()
@@ -490,6 +522,7 @@ BEGIN_EVENT_TABLE(MyImageFrame, wxFrame)
EVT_MENU(wxID_SAVE, MyImageFrame::OnSave) EVT_MENU(wxID_SAVE, MyImageFrame::OnSave)
EVT_MENU_RANGE(ID_ROTATE_LEFT, ID_ROTATE_RIGHT, MyImageFrame::OnRotate) EVT_MENU_RANGE(ID_ROTATE_LEFT, ID_ROTATE_RIGHT, MyImageFrame::OnRotate)
EVT_MENU(ID_RESIZE, MyImageFrame::OnResize)
END_EVENT_TABLE() END_EVENT_TABLE()
#ifdef wxHAVE_RAW_BITMAP #ifdef wxHAVE_RAW_BITMAP