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More life in wxPlot.

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git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@5552 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Robert Roebling 2000-01-20 18:09:59 +00:00
parent e15421ad3b
commit d3a809c7dc
2 changed files with 171 additions and 33 deletions
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16
include/wx/generic/plot.h
View File

@ -74,6 +74,9 @@ public:
void OnPaint( wxPaintEvent &event );
void OnMouse( wxMouseEvent &event );
void DrawCurve( wxDC *dc, wxPlotCurve *curve, int from = -1, int to = -1 );
void DeleteCurve( wxPlotCurve *curve, int from = -1, int to = -1 );
private:
wxPlotWindow *m_owner;
@ -99,8 +102,21 @@ public:
void SetCurrent( wxPlotCurve* current );
wxPlotCurve *GetCurrent();
void Move( wxPlotCurve* curve, int pixels_up );
void Enlarge( wxPlotCurve *curve, double factor );
void OnMoveUp( wxCommandEvent& event );
void OnMoveDown( wxCommandEvent& event );
void OnEnlarge100( wxCommandEvent& event );
void OnEnlarge50( wxCommandEvent& event );
void OnShrink50( wxCommandEvent& event );
void OnShrink33( wxCommandEvent& event );
void OnPaint( wxPaintEvent &event );
void RedrawYAxis();
private:
friend wxPlotArea;

182
src/generic/plot.cpp
View File

@ -106,11 +106,57 @@ void wxPlotArea::OnMouse( wxMouseEvent &event )
}
}
void wxPlotArea::OnPaint( wxPaintEvent &WXUNUSED(event) )
void wxPlotArea::DeleteCurve( wxPlotCurve *curve, int from, int to )
{
wxClientDC dc(this);
m_owner->PrepareDC( dc );
dc.SetPen( *wxWHITE_PEN );
DrawCurve( &dc, curve, from, to );
}
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;
if (from == -1)
from = view_x;
int client_width;
int client_height;
GetClientSize( &client_width, &client_height);
if (to == -1)
to = view_x + client_width;
int start_x = wxMax( from, curve->GetStartX() );
int end_x = wxMin( to, curve->GetEndX() );
start_x = wxMax( view_x, start_x );
end_x = wxMin( view_x + client_width, end_x );
double double_client_height = (double)client_height;
double range = curve->GetEndY() - curve->GetStartY();
double end = curve->GetEndY();
wxCoord offset_y = curve->GetOffsetY();
wxCoord y=0,last_y=0;
for (int x = start_x; x < end_x; x++)
{
double dy = (end - curve->GetY( x )) / range;
y = (wxCoord)(dy * double_client_height) - offset_y - 1;
if (x != start_x)
dc->DrawLine( x-1, last_y, x, y );
last_y = y;
}
}
void wxPlotArea::OnPaint( wxPaintEvent &WXUNUSED(event) )
{
int view_x;
int view_y;
m_owner->GetViewStart( &view_x, &view_y );
@ -150,25 +196,8 @@ void wxPlotArea::OnPaint( wxPaintEvent &WXUNUSED(event) )
else
dc.SetPen( *wxLIGHT_GREY_PEN );
int start_x = wxMax( update_x-1, curve->GetStartX() );
int end_x = wxMin( update_x+update_width+2, curve->GetEndX() );
DrawCurve( &dc, curve, update_x-1, update_x+update_width+2 );
double double_client_height = (double)client_height;
double range = curve->GetEndY() - curve->GetStartY();
double end = curve->GetEndY();
wxCoord offset_y = curve->GetOffsetY();
wxCoord y=0,last_y=0;
for (int x = start_x; x < end_x; x++)
{
double dy = (end - curve->GetY( x )) / range;
y = (wxCoord)(dy * double_client_height) - offset_y - 1;
if (x != start_x)
dc.DrawLine( x-1, last_y, x, y );
last_y = y;
}
node = node->Next();
}
upd ++;
@ -192,6 +221,13 @@ IMPLEMENT_DYNAMIC_CLASS(wxPlotWindow, wxScrolledWindow)
BEGIN_EVENT_TABLE(wxPlotWindow, wxScrolledWindow)
EVT_PAINT( wxPlotWindow::OnPaint)
EVT_BUTTON( ID_MOVE_UP, wxPlotWindow::OnMoveUp)
EVT_BUTTON( ID_MOVE_DOWN, wxPlotWindow::OnMoveDown)
EVT_BUTTON( ID_ENLARGE_100, wxPlotWindow::OnEnlarge100)
EVT_BUTTON( ID_ENLARGE_50, wxPlotWindow::OnEnlarge50)
EVT_BUTTON( ID_SHRINK_50, wxPlotWindow::OnShrink50)
EVT_BUTTON( ID_SHRINK_33, wxPlotWindow::OnShrink33)
END_EVENT_TABLE()
wxPlotWindow::wxPlotWindow( wxWindow *parent, wxWindowID id, const wxPoint &pos, const wxSize &size, int flag )
@ -254,13 +290,7 @@ void wxPlotWindow::SetCurrent( wxPlotCurve* current )
m_current = current;
m_area->Refresh( FALSE );
wxPoint pos( m_area->GetPosition() );
int client_width;
int client_height;
GetClientSize( &client_width, &client_height);
wxRect rect(pos.x-45,0,45,client_height);
Refresh(TRUE,&rect);
RedrawYAxis();
}
wxPlotCurve *wxPlotWindow::GetCurrent()
@ -268,6 +298,86 @@ wxPlotCurve *wxPlotWindow::GetCurrent()
return m_current;
}
void wxPlotWindow::Move( wxPlotCurve* curve, int pixels_up )
{
m_area->DeleteCurve( curve );
curve->SetOffsetY( curve->GetOffsetY() + pixels_up );
m_area->Refresh( FALSE );
RedrawYAxis();
}
void wxPlotWindow::OnMoveUp( wxCommandEvent& WXUNUSED(event) )
{
if (!m_current) return;
Move( m_current, 25 );
}
void wxPlotWindow::OnMoveDown( wxCommandEvent& WXUNUSED(event) )
{
if (!m_current) return;
Move( m_current, -25 );
}
void wxPlotWindow::Enlarge( wxPlotCurve *curve, double factor )
{
m_area->DeleteCurve( curve );
double range = curve->GetEndY() - curve->GetStartY();
double new_range = range * factor;
double middle = curve->GetEndY() - range/2;
curve->SetStartY( middle - new_range / 2 );
curve->SetEndY( middle + new_range / 2 );
m_area->Refresh( FALSE );
RedrawYAxis();
}
void wxPlotWindow::OnEnlarge100( wxCommandEvent& WXUNUSED(event) )
{
if (!m_current) return;
Enlarge( m_current, 2.0 );
}
void wxPlotWindow::OnEnlarge50( wxCommandEvent& WXUNUSED(event) )
{
if (!m_current) return;
Enlarge( m_current, 1.5 );
}
void wxPlotWindow::OnShrink50( wxCommandEvent& WXUNUSED(event) )
{
if (!m_current) return;
Enlarge( m_current, 0.5 );
}
void wxPlotWindow::OnShrink33( wxCommandEvent& WXUNUSED(event) )
{
if (!m_current) return;
Enlarge( m_current, 0.6666666 );
}
void wxPlotWindow::RedrawYAxis()
{
int client_width;
int client_height;
GetClientSize( &client_width, &client_height);
wxPoint pos( m_area->GetPosition() );
wxRect rect(pos.x-45,0,45,client_height);
Refresh(TRUE,&rect);
}
void wxPlotWindow::OnPaint( wxPaintEvent &WXUNUSED(event) )
{
wxPaintDC dc( this );
@ -300,11 +410,23 @@ void wxPlotWindow::OnPaint( wxPaintEvent &WXUNUSED(event) )
}
double lower = ceil(start / step) * step;
double upper = floor(end / step) * step;
// if too few values, shrink size
int steps = (int)ceil((upper-lower)/step);
if (steps < 3)
if (steps < 4)
{
step /= 2;
if (lower-step > start) lower -= step;
if (upper+step < end) upper += step;
}
// if still too few, again
steps = (int)ceil((upper-lower)/step);
if (steps < 4)
{
step /= 2;
if (lower-step > start) lower -= step;
if (upper+step < end) upper += step;
}
double current = lower;
@ -323,9 +445,9 @@ void wxPlotWindow::OnPaint( wxPaintEvent &WXUNUSED(event) )
current += step;
}
dc.DrawLine( pos.x-15, 5, pos.x-15, client_height-5 );
dc.DrawLine( pos.x-19, 9, pos.x-15, 5 );
dc.DrawLine( pos.x-10, 10, pos.x-15, 5 );
dc.DrawLine( pos.x-15, 6, pos.x-15, client_height-5 );
dc.DrawLine( pos.x-19, 8, pos.x-15, 2 );
dc.DrawLine( pos.x-10, 9, pos.x-15, 2 );
}