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more fixes to target window scrolling

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git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@12823 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Vadim Zeitlin
2001-12-02 15:57:36 +00:00
parent af4088f1be
commit 5f3286d17d
3 changed files with 49 additions and 62 deletions
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60
samples/scrollsub/scrollsub.cpp
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@@ -55,12 +55,12 @@ class MyTopLabels: public wxWindow
public:
MyTopLabels() {}
MyTopLabels( wxScrolledWindow *parent, wxWindowID id, const wxPoint &pos, const wxSize &size );
void OnPaint( wxPaintEvent &event );
private:
wxScrolledWindow *m_owner;
DECLARE_DYNAMIC_CLASS(MyTopLabels)
DECLARE_EVENT_TABLE()
};
@@ -72,12 +72,12 @@ class MyRightLabels: public wxWindow
public:
MyRightLabels() {}
MyRightLabels( wxScrolledWindow *parent, wxWindowID id, const wxPoint &pos, const wxSize &size );
void OnPaint( wxPaintEvent &event );
private:
wxScrolledWindow *m_owner;
DECLARE_DYNAMIC_CLASS(MyRightLabels)
DECLARE_EVENT_TABLE()
};
@@ -150,25 +150,25 @@ MyScrolledWindow::MyScrolledWindow( wxWindow *parent, wxWindowID id,
MyRightLabels *right = new MyRightLabels( this, -1, wxDefaultPosition, wxSize(60,-1) );
m_canvas = new MyCanvas( this, top, right, -1, wxDefaultPosition, wxDefaultSize );
SetTargetWindow( m_canvas );
SetBackgroundColour( wxT("WHEAT") );
SetCursor( wxCursor( wxCURSOR_HAND ) );
wxBoxSizer *mainsizer = new wxBoxSizer( wxVERTICAL );
wxBoxSizer *topsizer = new wxBoxSizer( wxHORIZONTAL );
topsizer->Add( 60,25 );
topsizer->Add( top, 1 );
topsizer->Add( top, 1, wxEXPAND );
mainsizer->Add( topsizer, 0, wxEXPAND );
wxBoxSizer *middlesizer = new wxBoxSizer( wxHORIZONTAL );
middlesizer->Add( right, 0, wxEXPAND );
middlesizer->Add( m_canvas, 1, wxEXPAND );
mainsizer->Add( middlesizer, 1, wxEXPAND );
SetAutoLayout( TRUE );
@@ -185,7 +185,7 @@ void MyScrolledWindow::OnPaint( wxPaintEvent &WXUNUSED(event) )
/*
wxSize size( GetClientSize() );
long w,h;
dc.GetTextExtent( wxT("Headline"), &w, &h );
@@ -257,15 +257,15 @@ MyCanvas::MyCanvas( wxScrolledWindow *parent, MyTopLabels *top, MyRightLabels *r
m_owner = parent;
m_topLabels = top;
m_rightLabels = right;
(void)new wxButton( this, -1, "Hallo I", wxPoint(0,50), wxSize(100,25) );
(void)new wxButton( this, -1, "Hallo II", wxPoint(200,50), wxSize(100,25) );
(void)new wxTextCtrl( this, -1, "Text I", wxPoint(0,100), wxSize(100,25) );
(void)new wxTextCtrl( this, -1, "Text II", wxPoint(200,100), wxSize(100,25) );
SetBackgroundColour( wxT("WHEAT") );
SetCursor( wxCursor( wxCURSOR_IBEAM ) );
}
@@ -279,27 +279,27 @@ void MyCanvas::OnPaint( wxPaintEvent &WXUNUSED(event) )
m_owner->PrepareDC( dc );
dc.SetPen( *wxBLACK_PEN );
// OK, let's assume we are a grid control and we have two
// grid cells. Here in OnPaint we want to know which cell
// to redraw so that we prevent redrawing cells that don't
// need to get redrawn. We have one cell at (0,0) and one
// more at (200,0), both having a size of (100,25).
// We can query how much the window has been scrolled
// We can query how much the window has been scrolled
// by calling CalcUnscrolledPosition()
int scroll_x = 0;
int scroll_y = 0;
m_owner->CalcUnscrolledPosition( scroll_x, scroll_y, &scroll_x, &scroll_y );
// We also need to know the size of the window to see which
// cells are completely hidden and not get redrawn
int size_x = 0;
int size_y = 0;
GetClientSize( &size_x, &size_y );
// First cell: (0,0)(100,25)
// It it on screen?
if ((0+100-scroll_x > 0) && (0+25-scroll_y > 0) &&
@@ -313,8 +313,8 @@ void MyCanvas::OnPaint( wxPaintEvent &WXUNUSED(event) )
dc.DrawText( "First Cell", 5, 5 );
}
}
// Second cell: (0,200)(100,25)
// It it on screen?
if ((200+100-scroll_x > 0) && (0+25-scroll_y > 0) &&
@@ -328,7 +328,7 @@ void MyCanvas::OnPaint( wxPaintEvent &WXUNUSED(event) )
dc.DrawText( "Second Cell", 205, 5 );
}
}
}
void MyCanvas::ScrollWindow( int dx, int dy, const wxRect *rect )
@@ -372,11 +372,11 @@ MyFrame::MyFrame()
m_scrolled = new MyScrolledWindow( this, -1, wxDefaultPosition, wxSize(100,100) );
m_scrolled->SetScrollbars( 10, 10, 50, 100 );
m_log = new wxTextCtrl( this, -1, "This is the log window.\n", wxPoint(0,0), wxSize(100,100), wxTE_MULTILINE );
wxLog *old_log = wxLog::SetActiveTarget( new wxLogTextCtrl( m_log ) );
delete old_log;
wxBoxSizer *topsizer = new wxBoxSizer( wxVERTICAL );
topsizer->Add( m_scrolled, 1, wxEXPAND );
topsizer->Add( m_log, 0, wxEXPAND );