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83 lines
2.3 KiB
C++
83 lines
2.3 KiB
C++
/********************************************************************
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gFooBar Implementation
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Copyright (c)2011 Mark Watkins <jedimark@users.sourceforge.net>
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License: GPL
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*********************************************************************/
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#include "gFooBar.h"
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gFooBar::gFooBar(int offset,QColor col1,QColor col2,bool funkbar)
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:gLayer(NULL),m_funkbar(funkbar),m_offset(offset)
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{
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color.clear();
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color.push_back(col2);
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color.push_back(col1);
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}
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gFooBar::~gFooBar()
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{
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}
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void gFooBar::Plot(gGraphWindow & w,float scrx,float scry)
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{
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if (!m_visible) return;
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double xx=w.max_x-w.min_x;
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if (xx==0)
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return;
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int start_px=w.GetLeftMargin()-1;
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int width=scrx - (w.GetLeftMargin() + w.GetRightMargin());
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int height=scry - (w.GetTopMargin() + w.GetBottomMargin());
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int end_px=scrx-w.GetRightMargin();
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QColor & col1=color[0];
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QColor & col2=color[1];
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glDisable(GL_DEPTH_TEST);
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float h=m_offset;
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glColor4ub(col1.red(),col1.green(),col1.blue(),col1.alpha());
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glLineWidth(1);
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glBegin(GL_LINES);
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glVertex2f(start_px, h);
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glVertex2f(start_px+width, h);
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glEnd();
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double rmx=w.rmax_x-w.rmin_x;
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double px=((1/rmx)*(w.min_x-w.rmin_x))*width;
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double py=((1/rmx)*(w.max_x-w.rmin_x))*width;
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glColor4ub(col2.red(),col2.green(),col2.blue(),col2.alpha());
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glLineWidth(4);
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glBegin(GL_LINES);
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glVertex2f(start_px+px-4,h);
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glVertex2f(start_px+py+4,h);
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glEnd();
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glLineWidth(1);
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if ((m_funkbar)) { // && ((w.min_x>w.rmin_x) || (w.max_x<w.rmax_x))) {
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glEnable(GL_BLEND);
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glBlendFunc(GL_SRC_ALPHA,GL_ONE_MINUS_SRC_ALPHA);
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glColor4f(.2,.2,.2,.2);
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glBegin(GL_QUADS);
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glVertex2f(start_px, w.GetBottomMargin());
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glVertex2f(start_px, w.GetBottomMargin()+height);
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glVertex2f(start_px+px, w.GetBottomMargin()+height);
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glVertex2f(start_px+px, w.GetBottomMargin());
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//glEnd();
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//glDisable(GL_BLEND);
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//glColor4f(.2,.2,.2,.3);
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//glBegin(GL_QUADS);
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glVertex2f(start_px+py, w.GetBottomMargin());
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glVertex2f(start_px+py, w.GetBottomMargin()+height);
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glVertex2f(end_px, w.GetBottomMargin()+height);
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glVertex2f(end_px, w.GetBottomMargin());
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glEnd();
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glDisable(GL_BLEND);
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}
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}
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