graph_string_file.zip_cgraph_it

//Graph.cpp - Version 4.0 (Brian Convery, November, 2002) #include "stdafx.h" #include "afxtempl.h" #include "math.h" #include "Graph.h" #include "GraphDef.h" #include "GraphDataSet.h" #ifdef _DEBUG #define new DEBUG_NEW #undef THIS_FILE static char THIS_FILE[] = __FILE__; #endif ///////////////////////////////////////////////////////////////////////////// // CGraph CGraph::CGraph() { dataSeries = new CObList(); legendFontSize = 12; legendMaxText = 0; minXvalue = 0; minYvalue = 0; maxXvalue = 0; maxYvalue = 0; quadsDisplay = 0; minXTick = 0.0; minYTick = 0.0; maxXTick = 0.0; maxYTick = 0.0; xTickStep = 1; yTickStep = 1; gridLinesEnabled = FALSE; horizontalAlign = FALSE; xTicksEnabled = TRUE; xTickFontSize = 12; yTickFontSize = 12; graphTitle = _T("Graph"); legendTitle = _T("Legend"); axisXLabel = _T("X Axis"); axisYLabel = _T("Y Axis"); doubleBufferingEnabled = FALSE; fontType = "Arial"; } CGraph::~CGraph() { if(dataSeries) { POSITION pos = dataSeries->GetHeadPosition(); while(pos != NULL) { CGraphDataSet* curDataSet = (CGraphDataSet*)dataSeries->GetNext(pos); delete curDataSet; } dataSeries->RemoveAll(); delete dataSeries; } } /*BEGIN_MESSAGE_MAP(CGraph, CStatic) //{{AFX_MSG_MAP(CGraph) // NOTE - the ClassWizard will add and remove mapping macros here. //}}AFX_MSG_MAP END_MESSAGE_MAP()*/ ///////////////////////////////////////////////////////////////////////////// // CGraph message handlers void CGraph::ColorBySeries(BOOL tf) { } void CGraph::ColorByGroups(BOOL tf) { } void CGraph::OpenDataSet() { dataSet = new CGraphDataSet(); } void CGraph::CloseDataSet() { dataSeries->AddTail((CObject*)dataSet); } void CGraph::SetData(double x, double y) { dataSet->AddData(x, y); if(x > maxXvalue) maxXvalue = x; if(x < minXvalue) minXvalue = x; if(y > maxYvalue) maxYvalue = y; if(y < minYvalue) minYvalue = y; } void CGraph::SetData(double x, double y, COLORREF color) //if ColorBySeries { dataSet->AddData(x, y, color); if(x > maxXvalue) maxXvalue = x; if(x < minXvalue) minXvalue = x; if(y > maxYvalue) maxYvalue = y; if(y < minYvalue) minYvalue = y; } void CGraph::SetData(CString xStr, double y) { dataSet->AddData(xStr, y); if(xStr.GetLength() > legendMaxText) legendMaxText = xStr.GetLength(); if(y > maxYvalue) maxYvalue = y; if(y < minYvalue) minYvalue = y; } void CGraph::SetData(CString xStr, double y, COLORREF color) //if ColorBySeries { dataSet->AddData(xStr, y, color); if(xStr.GetLength() > legendMaxText) legendMaxText = xStr.GetLength(); if(y > maxYvalue) maxYvalue = y; if(y < minYvalue) minYvalue = y; } void CGraph::SetDataSetLabel(CString label) { dataSet->SetLabel(label); } void CGraph::SetColor(COLORREF color) //if ColorByGroups { dataSet->SetColor(color); } void CGraph::SetDataLegend(CString legend) { dataSet->SetLegend(legend); if(legend.GetLength() > legendMaxText) legendMaxText = legend.GetLength(); } void CGraph::SetGraphTitle(CString label) { graphTitle = label; } void CGraph::SetLegendTitle(CString legend) { legendTitle = legend; if(legendTitle.GetLength() > legendMaxText) legendMaxText = legendTitle.GetLength(); } void CGraph::SetXAxisLabel(CString label) { axisXLabel = label; } void CGraph::SetYAxisLabel(CString label) { axisYLabel = label; } void CGraph::SetTickLimits(double minXLimit, double maxXLimit, double minYLimit, double maxYLimit) { minXTick = minXLimit; minYTick = minYLimit; maxXTick = maxXLimit; maxYTick = maxYLimit; } void CGraph::SetTickStep(double xStep, double yStep) { //tick steps should be positive values...correct them if not if(xStep > 0) xTickStep = xStep; else xTickStep = 0 - xStep; if(yStep > 0) yTickStep = yStep; else yTickStep = 0 - yStep; } void CGraph::SetHorizontalAlignment(BOOL enable) { horizontalAlign = enable; } BOOL CGraph::RemoveDataSet(int ds) { BOOL retVal = FALSE; if((dataSeries) && (dataSeries->GetCount() >= ds)) { POSITION pos; pos = dataSeries->GetHeadPosition(); for(int i = 1; i < ds; i++) { dataSeries->GetNext(pos); } CGraphDataSet* curDataSet = (CGraphDataSet*)dataSeries->GetAt(pos); delete curDataSet; dataSeries->RemoveAt(pos); retVal = TRUE; } return retVal; } void CGraph::RemoveAllData() { while(dataSeries->GetCount()) { POSITION pos = dataSeries->GetHeadPosition(); CGraphDataSet* curDataSet = (CGraphDataSet*)dataSeries->GetAt(pos); delete curDataSet; dataSeries->RemoveAt(pos); } delete dataSeries; dataSeries = new CObList(); } void CGraph::EnableXAxisTicks(BOOL enable) { xTicksEnabled = enable; } void CGraph::EnableDoubleBuffering(BOOL enable) { doubleBufferingEnabled = enable; } void CGraph::SetFontType(CString font) { fontType = font; } void CGraph::DrawGraphBase(CDC *pDC) { CString tickLabel; CWnd* graphWnd = pDC->GetWindow(); CRect graphRect; if(doubleBufferingEnabled) pDC->GetClipBox(&graphRect); else graphWnd->GetClientRect(&graphRect); TEXTMETRIC tm; //reset graph to be clear background CBrush backBrush (WHITE); //replace with desired background color. format: RGB(##,##,##) if your own color is desired CBrush* pOldBackBrush; pOldBackBrush = pDC->SelectObject(&backBrush); pDC->Rectangle(0, 0, graphRect.Width(), graphRect.Height()); pDC->SelectObject(pOldBackBrush); yAxisHeight = graphRect.Height() - 20; //for frame window and status bar xAxisWidth = graphRect.Width() - 5; //for frame window yAxisLocation = 5; xAxisLocation = yAxisHeight - 5; graphBottom = yAxisHeight - 5; //draw graph title CFont titleFont; int tFontSize = 24; while((graphTitle.GetLength() * (tFontSize / 2)) > xAxisWidth) { tFontSize -= 2; } titleFont.CreateFont(tFontSize, 0, 0, 0, 700, FALSE, FALSE, 0, ANSI_CHARSET, OUT_DEFAULT_PRECIS, CLIP_DEFAULT_PRECIS, DEFAULT_QUALITY, DEFAULT_PITCH | FF_ROMAN,fontType); CFont* pOldFont = (CFont*) pDC->SelectObject(&titleFont); pDC->GetTextMetrics(&tm); int charWidth = tm.tmAveCharWidth; pDC->TextOut((graphRect.Width() / 2) - ((graphTitle.GetLength() / 2) * charWidth), 10, graphTitle); pDC->SelectObject(pOldFont); yAxisHeight -= (20 + tm.tmHeight); } void CGraph::DrawAxis(CDC *pDC) { TEXTMETRIC tm; pDC->SetTextColor(BLACK); CFont sideFont, axisFont, dummyFont; CFont* pOldFont; int charWidth; CString tickLabel; //first off, determine how many quadrants are being used //there are 9 possible combinations for quadrants : //4 regular graphs, depicting each quadrant from a 4 quad graph //4 split quads : __|__ rotated around center point //1 4 quad graph //resulting types are therefore (the __ and ~~ are the x axis lines) //I will number them in order shown below (1 - 9) // // |__ |~~ __| ~~| // // __|__ ~~|~~ |-- --| // // --|-- // //in case of disabled ticks, define defaults quadsDisplay = 1; if((maxYvalue <= 0) && (minYvalue < 0)) quadsDisplay = 2; if((maxXvalue > 0) && (minXvalue >= 0) && (maxYvalue > 0) && (minYvalue >= 0)) { quadsDisplay = 1; if(minXTick < 0) minXTick = 0; if(minYTick < 0) minYTick = 0; if(maxXTick < 0) maxXTick = 0; if(maxYTick < 0) maxYTick = 0; } if((maxXvalue > 0) && (minXvalue >= 0) && (maxYvalue <= 0) && (minYvalue < 0)) { quadsDisplay = 2; if(minXTick < 0) minXTick = 0; if(minYTick > 0) minYTick = 0; if(maxXTick < 0) maxXTick = 0; if(maxYTick > 0) maxYTick = 0; } if((maxXvalue <= 0) && (minXvalue < 0) && (maxYvalue > 0) && (minYvalue >= 0)) { quadsDisplay = 3; if(minXTick > 0) minXTick = 0; if(minYTick < 0) minYTick = 0; if(maxXTick