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A no-change for scroll events.

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Added y-axis to wxPlot.


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@5548 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Robert Roebling
2000-01-20 14:16:18 +00:00
parent 30a6d2d264
commit 846e1424e2
13 changed files with 112 additions and 35 deletions
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77
src/generic/plot.cpp
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@@ -33,15 +33,19 @@
#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;
}
//-----------------------------------------------------------------------------
@@ -84,10 +88,14 @@ void wxPlotArea::OnMouse( wxMouseEvent &event )
{
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 );
@@ -123,12 +131,14 @@ void wxPlotArea::OnPaint( wxPaintEvent &WXUNUSED(event) )
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)
@@ -139,16 +149,20 @@ void wxPlotArea::OnPaint( wxPaintEvent &WXUNUSED(event) )
dc.SetPen( *wxBLACK_PEN );
else
dc.SetPen( *wxLIGHT_GREY_PEN );
wxCoord offset_y = client_height - curve->GetOffsetY();
int start_x = wxMax( update_x-1, curve->GetStartX() );
int end_x = wxMin( update_x+update_width+2, curve->GetEndX() );
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 = curve->GetY( x );
y = (wxCoord)(-dy * 100) + offset_y - 1;
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 );
@@ -238,14 +252,14 @@ wxPlotCurve *wxPlotWindow::GetAt( size_t n )
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);
wxRect rect(pos.x-45,0,45,client_height);
Refresh(TRUE,&rect);
}
@@ -268,11 +282,50 @@ void wxPlotWindow::OnPaint( wxPaintEvent &WXUNUSED(event) )
wxPoint pos( m_area->GetPosition() );
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;
int steps = (int)ceil((upper-lower)/step);
if (steps < 3)
{
step /= 2;
if (lower-step > start) lower -= 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( "%.1f", current );
dc.DrawText( label, pos.x-45, y-7 );
}
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 );
int y = client_height - m_current->GetOffsetY() - 1;
dc.DrawLine( pos.x-15, y, pos.x-7, y );
}