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Many plot window gooddies.

Browse Source 
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@6023 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Robert Roebling 2000-02-15 09:37:39 +00:00
parent cb60902e04
commit 530a7383f2
6 changed files with 117 additions and 28 deletions
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18
docs/latex/wx/plotwindow.tex
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@ -153,3 +153,21 @@ Helper function which redraws the X axis.
Helper function which redraws the Y axis.
\membersection{wxPlotWindow::SetScrollOnThumbRelease}\label{wxplotwindowsetscrollonthumbrelease}
\func{void}{SetScrollOnThumbRelease}{\param{bool}{ onrelease = TRUE}}
This function controls if the plot area will get scrolled only if the scrollbar thumb
has been release or also if the thumb is being dragged. When displaying large amounts
of data, it might become impossible to display the data fast enough to produce smooth
scrolling and then this function should be called.
\membersection{wxPlotWindow::SetEnlargeAroundWindowCentre}\label{wxplotwindowsetenlargearoundwindowcentre}
\func{void}{SetEnlargeAroundWindowCentre}{\param{bool}{ aroundwindow = TRUE}}
Depending on the kind of data you display, the enlarging the individual curves might
have different desired effects. Sometimes, the data will be supposed to get enlarged
with the fixed point being the origin, sometimes the fixed point should be the centre
of the current drawing area. This function controls this behaviour.

15
docs/latex/wx/scrlwevt.tex
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@ -20,14 +20,15 @@ for intercepting scroll window events from the receiving window.
\twocolwidtha{7cm}
\begin{twocollist}\itemsep=0pt
\twocolitem{{\bf EVT\_SCROLLWIN(func)}}{Process all scroll events.}
\twocolitem{{\bf EVT\_SCROLLWIN\_TOP(func)}}{Process wxEVT\_SCROLL\_TOP scroll-to-top events.}
\twocolitem{{\bf EVT\_SCROLLWIN\_BOTTOM(func)}}{Process wxEVT\_SCROLL\_TOP scroll-to-bottom events.}
\twocolitem{{\bf EVT\_SCROLLWIN\_LINEUP(func)}}{Process wxEVT\_SCROLL\_LINEUP line up events.}
\twocolitem{{\bf EVT\_SCROLLWIN\_LINEDOWN(func)}}{Process wxEVT\_SCROLL\_LINEDOWN line down events.}
\twocolitem{{\bf EVT\_SCROLLWIN\_PAGEUP(func)}}{Process wxEVT\_SCROLL\_PAGEUP page up events.}
\twocolitem{{\bf EVT\_SCROLLWIN\_PAGEDOWN(func)}}{Process wxEVT\_SCROLL\_PAGEDOWN page down events.}
\twocolitem{{\bf EVT\_SCROLLWIN\_THUMBTRACK(func)}}{Process wxEVT\_SCROLL\_THUMBTRACK thumbtrack events (frequent events
\twocolitem{{\bf EVT\_SCROLLWIN\_TOP(func)}}{Process wxEVT\_SCROLLWIN\_TOP scroll-to-top events.}
\twocolitem{{\bf EVT\_SCROLLWIN\_BOTTOM(func)}}{Process wxEVT\_SCROLLWIN\_TOP scroll-to-bottom events.}
\twocolitem{{\bf EVT\_SCROLLWIN\_LINEUP(func)}}{Process wxEVT\_SCROLLWIN\_LINEUP line up events.}
\twocolitem{{\bf EVT\_SCROLLWIN\_LINEDOWN(func)}}{Process wxEVT\_SCROLLWIN\_LINEDOWN line down events.}
\twocolitem{{\bf EVT\_SCROLLWIN\_PAGEUP(func)}}{Process wxEVT\_SCROLLWIN\_PAGEUP page up events.}
\twocolitem{{\bf EVT\_SCROLLWIN\_PAGEDOWN(func)}}{Process wxEVT\_SCROLLWIN\_PAGEDOWN page down events.}
\twocolitem{{\bf EVT\_SCROLLWIN\_THUMBTRACK(func)}}{Process wxEVT\_SCROLLWIN\_THUMBTRACK thumbtrack events (frequent events
sent as the user drags the thumtrack).}
\twocolitem{{\bf EVT\_SCROLLWIN\_THUMBRELEASE(func)}}{Process wxEVT\_SCROLLWIN\_THUMBRELEASE thumb release events.}
\end{twocollist}%
\wxheading{See also}

1
docs/latex/wx/scrolevt.tex
View File

@ -33,6 +33,7 @@ without window IDs for intercepting scroll events from the receiving window.
\twocolitem{{\bf EVT\_SCROLL\_PAGEDOWN(func)}}{Process wxEVT\_SCROLL\_PAGEDOWN page down events.}
\twocolitem{{\bf EVT\_SCROLL\_THUMBTRACK(func)}}{Process wxEVT\_SCROLL\_THUMBTRACK thumbtrack events (frequent events
sent as the user drags the thumtrack).}
\twocolitem{{\bf EVT\_SCROLL\_THUMBRELEASE(func)}}{Process wxEVT\_SCROLL\_THUMBRELEASE thumb release events.}
\twocolitem{{\bf EVT\_COMMAND\_SCROLL(id, func)}}{Process all scroll events.}
\twocolitem{{\bf EVT\_COMMAND\_SCROLL\_TOP(id, func)}}{Process wxEVT\_SCROLL\_TOP scroll-to-top events.}
\twocolitem{{\bf EVT\_COMMAND\_SCROLL\_BOTTOM(id, func)}}{Process wxEVT\_SCROLL\_TOP scroll-to-bottom events.}

18
include/wx/generic/plot.h
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@ -213,7 +213,20 @@ public:
void SetZoom( double zoom );
double GetZoom()
{ return m_xZoom; }
// options
// -------
void SetScrollOnThumbRelease( bool scrollOnThumbRelease = TRUE )
{ m_scrollOnThumbRelease = scrollOnThumbRelease; }
bool GetScrollOnThumbRelease()
{ return m_scrollOnThumbRelease; }
void SetEnlargeAroundWindowCentre( bool enlargeAroundWindowCentre = TRUE )
{ m_enlargeAroundWindowCentre = enlargeAroundWindowCentre; }
bool GetEnlargeAroundWindowCentre()
{ return m_enlargeAroundWindowCentre; }
// events (may be overridden)
// --------------------------
@ -249,6 +262,9 @@ private:
wxPlotXAxisArea *m_xaxis;
wxPlotYAxisArea *m_yaxis;
wxPlotCurve *m_current;
bool m_scrollOnThumbRelease;
bool m_enlargeAroundWindowCentre;
DECLARE_CLASS(wxPlotWindow)
DECLARE_EVENT_TABLE()

92
src/generic/plot.cpp
View File

@ -60,6 +60,12 @@ static wxBitmap *GetZoomOutBitmap();
static wxBitmap *GetUpBitmap();
static wxBitmap *GetDownBitmap();
//-----------------------------------------------------------------------------
// consts
//-----------------------------------------------------------------------------
#define wxPLOT_SCROLL_STEP 30
//-----------------------------------------------------------------------------
// wxPlotEvent
//-----------------------------------------------------------------------------
@ -115,8 +121,8 @@ void wxPlotArea::OnMouse( wxMouseEvent &event )
int view_x;
int view_y;
m_owner->GetViewStart( &view_x, &view_y );
view_x *= 10;
view_y *= 10;
view_x *= wxPLOT_SCROLL_STEP;
view_y *= wxPLOT_SCROLL_STEP;
int x = event.GetX();
int y = event.GetY();
@ -176,7 +182,7 @@ void wxPlotArea::DrawCurve( wxDC *dc, wxPlotCurve *curve, int from, int to )
int view_x;
int view_y;
m_owner->GetViewStart( &view_x, &view_y );
view_x *= 10;
view_x *= wxPLOT_SCROLL_STEP;
if (from == -1)
from = view_x;
@ -187,6 +193,8 @@ void wxPlotArea::DrawCurve( wxDC *dc, wxPlotCurve *curve, int from, int to )
if (to == -1)
to = view_x + client_width;
to += 2; // no idea why this is needed
double zoom = m_owner->GetZoom();
@ -219,8 +227,8 @@ void wxPlotArea::OnPaint( wxPaintEvent &WXUNUSED(event) )
int view_x;
int view_y;
m_owner->GetViewStart( &view_x, &view_y );
view_x *= 10;
view_y *= 10;
view_x *= wxPLOT_SCROLL_STEP;
view_y *= wxPLOT_SCROLL_STEP;
wxPaintDC dc( this );
m_owner->PrepareDC( dc );
@ -286,6 +294,7 @@ wxPlotXAxisArea::wxPlotXAxisArea( wxPlotWindow *parent )
m_owner = parent;
SetBackgroundColour( *wxWHITE );
SetFont( *wxSMALL_FONT );
}
void wxPlotXAxisArea::OnMouse( wxMouseEvent &event )
@ -296,8 +305,8 @@ void wxPlotXAxisArea::OnMouse( wxMouseEvent &event )
int view_x;
int view_y;
m_owner->GetViewStart( &view_x, &view_y );
view_x *= 10;
view_y *= 10;
view_x *= wxPLOT_SCROLL_STEP;
view_y *= wxPLOT_SCROLL_STEP;
int x = event.GetX();
int y = event.GetY();
@ -312,8 +321,8 @@ void wxPlotXAxisArea::OnPaint( wxPaintEvent &WXUNUSED(event) )
int view_x;
int view_y;
m_owner->GetViewStart( &view_x, &view_y );
view_x *= 10;
view_y *= 10;
view_x *= wxPLOT_SCROLL_STEP;
view_y *= wxPLOT_SCROLL_STEP;
wxPaintDC dc( this );
@ -374,8 +383,14 @@ void wxPlotXAxisArea::OnPaint( wxPaintEvent &WXUNUSED(event) )
{
dc.DrawLine( x, 5, x, 15 );
wxString label;
if (range < 10)
label.Printf( wxT("%.1f"), current );
if (range < 50)
{
label.Printf( wxT("%f"), current );
while (label.Last() == wxT('0'))
label.RemoveLast();
if ((label.Last() == wxT('.')) || (label.Last() == wxT(',')))
label.Append( wxT('0') );
}
else
label.Printf( wxT("%d"), (int)floor(current) );
dc.DrawText( label, x-4, 20 );
@ -406,6 +421,7 @@ wxPlotYAxisArea::wxPlotYAxisArea( wxPlotWindow *parent )
m_owner = parent;
SetBackgroundColour( *wxWHITE );
SetFont( *wxSMALL_FONT );
}
void wxPlotYAxisArea::OnMouse( wxMouseEvent &WXUNUSED(event) )
@ -473,7 +489,16 @@ void wxPlotYAxisArea::OnPaint( wxPaintEvent &WXUNUSED(event) )
{
dc.DrawLine( client_width-15, y, client_width-7, y );
wxString label;
label.Printf( wxT("%.1f"), current );
if (range < 50)
{
label.Printf( wxT("%f"), current );
while (label.Last() == wxT('0'))
label.RemoveLast();
if ((label.Last() == wxT('.')) || (label.Last() == wxT(',')))
label.Append( wxT('0') );
}
else
label.Printf( wxT("%d"), (int)floor(current) );
dc.DrawText( label, 5, y-7 );
}
@ -519,6 +544,9 @@ wxPlotWindow::wxPlotWindow( wxWindow *parent, wxWindowID id, const wxPoint &pos,
{
m_xUnitsPerValue = 1.0;
m_xZoom = 1.0;
m_enlargeAroundWindowCentre = FALSE;
m_scrollOnThumbRelease = FALSE;
m_area = new wxPlotArea( this );
wxBoxSizer *mainsizer = new wxBoxSizer( wxHORIZONTAL );
@ -675,11 +703,29 @@ void wxPlotWindow::Enlarge( wxPlotCurve *curve, double factor )
{
m_area->DeleteCurve( curve );
int client_width;
int client_height;
m_area->GetClientSize( &client_width, &client_height);
double offset = (double)curve->GetOffsetY() / (double)client_height;
double range = curve->GetEndY() - curve->GetStartY();
offset *= range;
double new_range = range / factor;
double middle = curve->GetEndY() - range/2;
curve->SetStartY( middle - new_range / 2 );
curve->SetEndY( middle + new_range / 2 );
double new_offset = offset / factor;
if (m_enlargeAroundWindowCentre)
{
double middle = curve->GetStartY() - offset + range/2;
curve->SetStartY( middle - new_range / 2 + new_offset );
curve->SetEndY( middle + new_range / 2 + new_offset );
}
else
{
curve->SetStartY( (curve->GetStartY() - offset)/factor + new_offset );
curve->SetEndY( (curve->GetEndY() - offset)/factor + new_offset );
}
m_area->Refresh( FALSE );
RedrawYAxis();
@ -710,7 +756,10 @@ void wxPlotWindow::SetZoom( double zoom )
max = curve->GetEndX();
node = node->Next();
}
SetScrollbars( 10, 10, (int)((max*m_xZoom)/10)+1, 0, (int)view_x*zoom/old_zoom, 0 );
SetScrollbars( wxPLOT_SCROLL_STEP, wxPLOT_SCROLL_STEP,
(int)((max*m_xZoom)/wxPLOT_SCROLL_STEP)+1, 0,
(int)view_x*zoom/old_zoom, 0,
TRUE );
RedrawXAxis();
m_area->Refresh( TRUE );
@ -728,7 +777,8 @@ void wxPlotWindow::ResetScrollbar()
node = node->Next();
}
SetScrollbars( 10, 10, ((max*m_xZoom)/10)+1, 0 );
SetScrollbars( wxPLOT_SCROLL_STEP, wxPLOT_SCROLL_STEP,
((max*m_xZoom)/wxPLOT_SCROLL_STEP)+1, 0 );
}
void wxPlotWindow::RedrawXAxis()
@ -778,9 +828,11 @@ void wxPlotWindow::OnShrink( wxCommandEvent& WXUNUSED(event) )
void wxPlotWindow::OnScroll2( wxScrollWinEvent& event )
{
wxScrolledWindow::OnScroll( event );
RedrawXAxis();
if ((!m_scrollOnThumbRelease) || (event.GetEventType() != wxEVT_SCROLLWIN_THUMBTRACK))
{
wxScrolledWindow::OnScroll( event );
RedrawXAxis();
}
}
// ----------------------------------------------------------------------------

1
src/generic/scrolwin.cpp
View File

@ -317,6 +317,7 @@ int wxScrolledWindow::CalcScrollInc(wxScrollWinEvent& event)
break;
}
case wxEVT_SCROLLWIN_THUMBTRACK:
case wxEVT_SCROLLWIN_THUMBRELEASE:
{
if (orient == wxHORIZONTAL)
nScrollInc = pos - m_xScrollPosition;