#include "wx/generic/plot.h"
+#include <math.h>
+
//-----------------------------------------------------------------------------
// wxPlotCurve
//-----------------------------------------------------------------------------
IMPLEMENT_ABSTRACT_CLASS(wxPlotCurve, wxObject)
-wxPlotCurve::wxPlotCurve( int offsetY )
+wxPlotCurve::wxPlotCurve( int offsetY, double startY, double endY )
{
m_offsetY = offsetY;
+ m_startY = startY;
+ m_endY = endY;
}
//-----------------------------------------------------------------------------
{
wxPlotCurve *curve = (wxPlotCurve*)node->Data();
- wxCoord offset_y = client_height - curve->GetOffsetY();
-
- double dy = curve->GetY( x );
- int curve_y = (wxCoord)(-dy * 100) + offset_y - 1;
+ double double_client_height = (double)client_height;
+ double range = curve->GetEndY() - curve->GetStartY();
+ double end = curve->GetEndY();
+ wxCoord offset_y = curve->GetOffsetY();
+
+ double dy = (end - curve->GetY( x )) / range;
+ wxCoord curve_y = (wxCoord)(dy * double_client_height) - offset_y - 1;
+
if ((y-curve_y < 4) && (y-curve_y > -4))
{
m_owner->SetCurrent( curve );
}
}
-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 );
update_x += view_x;
update_y += view_y;
+/*
if (m_owner->m_current)
{
dc.SetPen( *wxLIGHT_GREY_PEN );
int base_line = client_height - m_owner->m_current->GetOffsetY();
dc.DrawLine( update_x-1, base_line-1, update_x+update_width+2, base_line-1 );
}
+*/
wxNode *node = m_owner->m_curves.First();
while (node)
dc.SetPen( *wxBLACK_PEN );
else
dc.SetPen( *wxLIGHT_GREY_PEN );
- wxCoord offset_y = client_height - curve->GetOffsetY();
+
+ DrawCurve( &dc, curve, update_x-1, update_x+update_width+2 );
- int start_x = wxMax( update_x-1, curve->GetStartX() );
- int end_x = wxMin( update_x+update_width+2, curve->GetEndX() );
-
- wxCoord y=0,last_y=0;
- for (int x = start_x; x < end_x; x++)
- {
- double dy = curve->GetY( x );
- y = (wxCoord)(-dy * 100) + offset_y - 1;
-
- if (x != start_x)
- dc.DrawLine( x-1, last_y, x, y );
-
- last_y = y;
- }
node = node->Next();
}
upd ++;
IMPLEMENT_DYNAMIC_CLASS(wxPlotWindow, wxScrolledWindow)
BEGIN_EVENT_TABLE(wxPlotWindow, wxScrolledWindow)
- EVT_PAINT( wxPlotWindow::OnPaint)
+ 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 )
void wxPlotWindow::SetCurrent( wxPlotCurve* current )
{
m_current = current;
- m_area->Refresh( TRUE );
+ m_area->Refresh( FALSE );
- wxPoint pos( m_area->GetPosition() );
-
- int client_width;
- int client_height;
- GetClientSize( &client_width, &client_height);
- wxRect rect(pos.x-40,0,40,client_height);
- Refresh(TRUE,&rect);
+ RedrawYAxis();
}
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 );
wxPoint pos( m_area->GetPosition() );
- 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 );
+ double range = m_current->GetEndY() - m_current->GetStartY();
+ double offset = ((double) m_current->GetOffsetY() / (double)client_height ) * range;
+ double start = m_current->GetStartY() - offset;
+ double end = m_current->GetEndY() - offset;
+ int int_log_range = (int)floor( log10( range ) );
+ double step = 1.0;
+ if (int_log_range > 0)
+ {
+ for (int i = 0; i < int_log_range; i++)
+ step *= 10;
+ }
+ if (int_log_range < 0)
+ {
+ for (int i = 0; i < -int_log_range; i++)
+ step /= 10;
+ }
+ 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 < 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;
+ while (current < upper+(step/2))
+ {
+ int y = (int)((m_current->GetEndY()-current) / range * (double)client_height) - 1;
+ y -= m_current->GetOffsetY();
+ if ((y > 10) && (y < client_height-7))
+ {
+ dc.DrawLine( pos.x-15, y, pos.x-7, y );
+ wxString label;
+ label.Printf( wxT("%.1f"), current );
+ dc.DrawText( label, pos.x-45, y-7 );
+ }
+
+ current += step;
+ }
+
+ 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 );
- int y = client_height - m_current->GetOffsetY() - 1;
- dc.DrawLine( pos.x-15, y, pos.x-7, y );
}
projects / wxWidgets.git / blobdiff