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Add "Double zoom" command to the image sample image view window

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Just a convenient way to go to 200% zoom instead of having to use "Zoom
in" command several times to get close to it.
This commit is contained in:
Vadim Zeitlin
2022-02-22 01:54:26 +00:00
parent 4fbd0d650f
commit c227d10728
1 changed files with 26 additions and 6 deletions
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32
samples/image/image.cpp
View File

@@ -127,6 +127,7 @@ enum
ID_ROTATE_LEFT = wxID_HIGHEST+1,
ID_ROTATE_RIGHT,
ID_RESIZE,
ID_ZOOM_x2,
ID_PAINT_BG
};
@@ -197,9 +198,11 @@ private:
"Uncheck this for transparent images");
menu->AppendSeparator();
menu->Append(ID_RESIZE, "&Fit to window\tCtrl-F");
menu->AppendSeparator();
menu->Append(wxID_ZOOM_IN, "Zoom &in\tCtrl-+");
menu->Append(wxID_ZOOM_OUT, "Zoom &out\tCtrl--");
menu->Append(wxID_ZOOM_100, "Reset zoom to &100%\tCtrl-1");
menu->Append(ID_ZOOM_x2, "Double zoom level\tCtrl-2");
menu->AppendSeparator();
menu->Append(ID_ROTATE_LEFT, "Rotate &left\tCtrl-L");
menu->Append(ID_ROTATE_RIGHT, "Rotate &right\tCtrl-R");
@@ -442,12 +445,28 @@ private:
void OnZoom(wxCommandEvent& event)
{
if ( event.GetId() == wxID_ZOOM_IN )
m_zoom *= 1.2;
else if ( event.GetId() == wxID_ZOOM_OUT )
m_zoom /= 1.2;
else // wxID_ZOOM_100
m_zoom = 1.;
switch ( event.GetId() )
{
case wxID_ZOOM_IN:
m_zoom *= 1.2;
break;
case wxID_ZOOM_OUT:
m_zoom /= 1.2;
break;
case wxID_ZOOM_100:
m_zoom = 1.;
break;
case ID_ZOOM_x2:
m_zoom *= 2.;
break;
default:
wxFAIL_MSG("unknown zoom command");
return;
}
UpdateStatusBar();
}
@@ -946,6 +965,7 @@ wxBEGIN_EVENT_TABLE(MyImageFrame, wxFrame)
EVT_MENU(wxID_ZOOM_IN, MyImageFrame::OnZoom)
EVT_MENU(wxID_ZOOM_OUT, MyImageFrame::OnZoom)
EVT_MENU(wxID_ZOOM_100, MyImageFrame::OnZoom)
EVT_MENU(ID_ZOOM_x2, MyImageFrame::OnZoom)
wxEND_EVENT_TABLE()
//-----------------------------------------------------------------------------