507 lines
15 KiB
C++
507 lines
15 KiB
C++
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#include <stdio.h>
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#include <stdlib.h>
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#include <math.h>
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#include <string.h>
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#include "iupPlot.h"
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#include "iup_cdutil.h"
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#include "iup_image.h"
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static inline void iPlotDrawRectI(cdCanvas* canvas, int inX, int inY, int inW, int inH)
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{
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cdCanvasRect(canvas, inX, inX + inW - 1, inY, inY + inH - 1);
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}
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static inline void iPlotDrawSector(cdCanvas* canvas, double inX, double inY, double inW, double inH, double inStartAngle, double inEndAngle)
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{
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cdfCanvasSector(canvas, inX, inY, inW, inH, inStartAngle, inEndAngle);
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}
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/************************************************************************************/
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void iupPlotBox::Draw(const iupPlotRect &inRect, cdCanvas* canvas) const
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{
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cdCanvasSetForeground(canvas, mColor);
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iupPlotDrawSetLineStyle(canvas, mLineStyle, mLineWidth);
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iPlotDrawRectI(canvas, inRect.mX, inRect.mY, inRect.mWidth, inRect.mHeight);
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}
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bool iupPlotGrid::DrawX(iupPlotTickIter* inTickIter, iupPlotTrafo* inTrafo, const iupPlotRect &inRect, cdCanvas* canvas) const
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{
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if (mShowX)
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{
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if (!inTickIter->Init())
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return false;
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double theX;
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bool theIsMajorTick;
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cdCanvasSetForeground(canvas, mColor);
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iupPlotDrawSetLineStyle(canvas, mLineStyle, mLineWidth);
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while (inTickIter->GetNextTick(theX, theIsMajorTick, NULL))
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{
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if ((theIsMajorTick && mMajor) || (!theIsMajorTick && !mMajor))
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{
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double theScreenX = inTrafo->Transform(theX);
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cdfCanvasLine(canvas, theScreenX, inRect.mY, theScreenX, inRect.mY + inRect.mHeight - 1);
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}
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}
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}
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return true;
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}
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bool iupPlotGrid::DrawY(iupPlotTickIter* inTickIter, iupPlotTrafo* inTrafo, const iupPlotRect &inRect, cdCanvas* canvas) const
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{
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if (mShowY)
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{
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if (!inTickIter->Init())
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return false;
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double theY;
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bool theIsMajorTick;
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iupPlotRect theTickRect;
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cdCanvasSetForeground(canvas, mColor);
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iupPlotDrawSetLineStyle(canvas, mLineStyle, mLineWidth);
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while (inTickIter->GetNextTick(theY, theIsMajorTick, NULL))
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{
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if ((theIsMajorTick && mMajor) || (!theIsMajorTick && !mMajor))
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{
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double theScreenY = inTrafo->Transform(theY);
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cdfCanvasLine(canvas, inRect.mX, theScreenY, inRect.mX + inRect.mWidth - 1, theScreenY);
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}
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}
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}
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return true;
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}
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/************************************************************************************************/
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void iupPlot::DrawCrossSamplesH(const iupPlotRect &inRect, const iupPlotData *inXData, const iupPlotData *inYData, cdCanvas* canvas) const
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{
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int theCount = inXData->GetCount();
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if (theCount == 0)
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return;
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double theXTarget = mAxisX.mTrafo->TransformBack((double)mCrossHairX);
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bool theFirstIsLess = inXData->GetSample(0) < theXTarget;
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for (int i = 0; i < theCount; i++)
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{
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double theX = inXData->GetSample(i);
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bool theCurrentIsLess = theX < theXTarget;
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if (theCurrentIsLess != theFirstIsLess)
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{
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double theY = inYData->GetSample(i);
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int theScreenY = iupPlotRound(mAxisY.mTrafo->Transform(theY)); // transform to pixels
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// Draw a horizontal line at data Y coordinate
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cdfCanvasLine(canvas, inRect.mX, theScreenY, inRect.mX + inRect.mWidth - 1, theScreenY);
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theFirstIsLess = theCurrentIsLess;
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}
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}
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}
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void iupPlot::DrawCrossHairH(const iupPlotRect &inRect, cdCanvas* canvas) const
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{
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cdCanvasSetForeground(canvas, mAxisY.mColor);
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iupPlotDrawSetLineStyle(canvas, CD_CONTINUOUS, 1);
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// Draw a vertical line at cursor X coordinate
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cdCanvasLine(canvas, mCrossHairX, inRect.mY, mCrossHairX, inRect.mY + inRect.mHeight - 1);
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for (int ds = 0; ds < mDataSetListCount; ds++)
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{
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iupPlotDataSet* dataset = mDataSetList[ds];
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const iupPlotData *theXData = dataset->GetDataX();
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const iupPlotData *theYData = dataset->GetDataY();
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cdCanvasSetForeground(canvas, dataset->mColor);
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DrawCrossSamplesH(inRect, theXData, theYData, canvas);
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}
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}
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void iupPlot::DrawCrossSamplesV(const iupPlotRect &inRect, const iupPlotData *inXData, const iupPlotData *inYData, cdCanvas* canvas) const
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{
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int theCount = inXData->GetCount();
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if (theCount == 0)
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return;
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double theYTarget = mAxisY.mTrafo->TransformBack((double)mCrossHairY);
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bool theFirstIsLess = inYData->GetSample(0) < theYTarget;
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for (int i = 0; i < theCount; i++)
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{
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double theY = inYData->GetSample(i);
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bool theCurrentIsLess = theY < theYTarget;
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if (theCurrentIsLess != theFirstIsLess)
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{
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double theX = inXData->GetSample(i);
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int theScreenX = iupPlotRound(mAxisX.mTrafo->Transform(theX)); // transform to pixels
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// Draw a vertical line at data X coordinate
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cdfCanvasLine(canvas, theScreenX, inRect.mY, theScreenX, inRect.mY + inRect.mHeight - 1);
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theFirstIsLess = theCurrentIsLess;
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}
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}
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}
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void iupPlot::DrawCrossHairV(const iupPlotRect &inRect, cdCanvas* canvas) const
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{
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cdCanvasSetForeground(canvas, mAxisX.mColor);
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iupPlotDrawSetLineStyle(canvas, CD_CONTINUOUS, 1);
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// Draw an horizontal line at cursor Y coordinate
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cdCanvasLine(canvas, inRect.mX, mCrossHairY, inRect.mX + inRect.mWidth - 1, mCrossHairY);
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for (int ds = 0; ds < mDataSetListCount; ds++)
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{
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iupPlotDataSet* dataset = mDataSetList[ds];
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const iupPlotData *theXData = dataset->GetDataX();
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const iupPlotData *theYData = dataset->GetDataY();
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cdCanvasSetForeground(canvas, dataset->mColor);
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DrawCrossSamplesV(inRect, theXData, theYData, canvas);
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}
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}
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void iupPlot::SetTitleFont(cdCanvas* canvas) const
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{
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int theFontSize = mTitle.mFontSize;
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if (theFontSize == 0)
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{
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int size = IupGetInt(ih, "FONTSIZE");
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if (size > 0) size += 6;
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else size -= 8;
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theFontSize = size;
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}
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SetFont(canvas, mTitle.mFontStyle, theFontSize);
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}
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void iupPlot::DrawTitle(cdCanvas* canvas) const
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{
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if (mTitle.GetText())
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{
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cdCanvasSetForeground(canvas, mTitle.mColor);
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SetTitleFont(canvas);
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cdCanvasTextAlignment(canvas, CD_NORTH);
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cdCanvasText(canvas, mTitle.mPosX, mTitle.mPosY, mTitle.GetText());
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}
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}
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void iupPlot::DrawBackground(cdCanvas* canvas) const
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{
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if (!mBack.mTransparent)
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{
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cdCanvasOrigin(canvas, 0, 0);
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cdCanvasClip(canvas, CD_CLIPOFF);
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cdCanvasSetForeground(canvas, mBack.mColor);
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cdCanvasBox(canvas, mViewportBack.mX, mViewportBack.mX + mViewportBack.mWidth - 1, mViewportBack.mY, mViewportBack.mY + mViewportBack.mHeight - 1);
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}
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}
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void iupPlot::DrawInactive(cdCanvas* canvas) const
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{
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cdCanvasOrigin(canvas, 0, 0);
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cdCanvasClip(canvas, CD_CLIPOFF);
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long inactive_color = cdEncodeAlpha(CD_GRAY, 96);
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cdCanvasSetForeground(canvas, inactive_color);
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cdCanvasBox(canvas, mViewportBack.mX, mViewportBack.mX + mViewportBack.mWidth - 1, mViewportBack.mY, mViewportBack.mY + mViewportBack.mHeight - 1);
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}
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void iupPlot::DrawBackgroundImage(cdCanvas* canvas) const
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{
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Ihandle* image = IupImageGetHandle(mBack.GetImage());
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if (image)
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{
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double theScreenMinX = mAxisX.mTrafo->Transform(mBack.mImageMinX);
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double theScreenMinY = mAxisY.mTrafo->Transform(mBack.mImageMinY);
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double theScreenMaxX = mAxisX.mTrafo->Transform(mBack.mImageMaxX);
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double theScreenMaxY = mAxisY.mTrafo->Transform(mBack.mImageMaxY);
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double theScreenW = theScreenMaxX - theScreenMinX + 1;
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double theScreenH = theScreenMaxY - theScreenMinY + 1;
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int theX = iupPlotRound(theScreenMinX);
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int theY = iupPlotRound(theScreenMinY);
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int theW = iupPlotRound(theScreenW);
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int theH = iupPlotRound(theScreenH);
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cdIupDrawImage(canvas, image, theX, theY, theW, theH, 0, mBack.mColor);
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}
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}
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bool iupPlot::DrawLegend(const iupPlotRect &inRect, cdCanvas* canvas, iupPlotRect &ioPos) const
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{
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if (mLegend.mShow)
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{
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int ds;
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int theFontHeight;
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SetFont(canvas, mLegend.mFontStyle, mLegend.mFontSize);
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cdCanvasGetFontDim(canvas, NULL, &theFontHeight, NULL, NULL);
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int theMargin = theFontHeight / 2;
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if (mLegend.mPosition == IUP_PLOT_BOTTOMCENTER)
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theMargin = 0;
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int theTotalHeight = mDataSetListCount*theFontHeight + 2 * theMargin;
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int theLineSpace = 20;
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int theWidth, theMaxWidth = 0;
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for (ds = 0; ds < mDataSetListCount; ds++)
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{
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iupPlotDataSet* dataset = mDataSetList[ds];
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cdCanvasGetTextSize(canvas, dataset->GetName(), &theWidth, NULL);
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if (dataset->mMode == IUP_PLOT_MARK || dataset->mMode == IUP_PLOT_MARKLINE)
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{
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if (dataset->mMarkSize + 6 > theLineSpace)
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theLineSpace = dataset->mMarkSize + 6;
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}
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theWidth += theLineSpace;
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if (theWidth > theMaxWidth)
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theMaxWidth = theWidth;
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}
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if (theMaxWidth == 0)
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return false;
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theMaxWidth += 2 * theMargin;
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if (mLegend.mPosition != IUP_PLOT_XY)
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{
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int theScreenX = inRect.mX;
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int theScreenY = inRect.mY;
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switch (mLegend.mPosition)
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{
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case IUP_PLOT_TOPLEFT:
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theScreenX += 2;
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theScreenY += inRect.mHeight - theTotalHeight - 2;
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break;
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case IUP_PLOT_BOTTOMLEFT:
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theScreenX += 2;
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theScreenY += 2;
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break;
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case IUP_PLOT_BOTTOMRIGHT:
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theScreenX += inRect.mWidth - theMaxWidth - 2;
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theScreenY += 2;
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break;
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case IUP_PLOT_BOTTOMCENTER:
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theScreenX += (inRect.mWidth - theMaxWidth) / 2;
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theScreenY = theFontHeight / 4;
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break;
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default: // IUP_PLOT_TOPRIGHT
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theScreenX += inRect.mWidth - theMaxWidth - 2;
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theScreenY += inRect.mHeight - theTotalHeight - 2;
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break;
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}
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ioPos.mX = theScreenX;
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ioPos.mY = theScreenY;
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}
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ioPos.mWidth = theMaxWidth;
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ioPos.mHeight = theTotalHeight;
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// Clip to the legend box
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cdCanvasClipArea(canvas, ioPos.mX, ioPos.mX + ioPos.mWidth - 1,
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ioPos.mY, ioPos.mY + ioPos.mHeight - 1);
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if (mLegend.mBoxShow)
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{
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cdCanvasSetForeground(canvas, mLegend.mBoxBackColor);
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iupPlotDrawBox(canvas, ioPos.mX + 1, ioPos.mY + 1, ioPos.mWidth - 2, ioPos.mHeight - 2);
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cdCanvasSetForeground(canvas, mLegend.mBoxColor);
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iupPlotDrawSetLineStyle(canvas, mLegend.mBoxLineStyle, mLegend.mBoxLineWidth);
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iPlotDrawRectI(canvas, ioPos.mX, ioPos.mY, ioPos.mWidth, ioPos.mHeight);
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}
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for (ds = 0; ds < mDataSetListCount; ds++)
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{
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iupPlotDataSet* dataset = mDataSetList[ds];
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cdCanvasSetForeground(canvas, dataset->mColor);
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int theLegendX = ioPos.mX + theMargin;
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int theLegendY = ioPos.mY + (mDataSetListCount - 1 - ds)*theFontHeight + theMargin;
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theLegendY += theFontHeight / 2;
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if (dataset->mMode == IUP_PLOT_MARK || dataset->mMode == IUP_PLOT_MARKLINE)
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{
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iPlotSetMark(canvas, dataset->mMarkStyle, dataset->mMarkSize);
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cdCanvasMark(canvas, theLegendX + (theLineSpace - 3) / 2, theLegendY - theFontHeight / 8);
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}
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|
if (dataset->mMode != IUP_PLOT_MARK)
|
||
|
|
{
|
||
|
|
iupPlotDrawSetLineStyle(canvas, dataset->mLineStyle, dataset->mLineWidth);
|
||
|
|
cdCanvasLine(canvas, theLegendX, theLegendY - theFontHeight / 8,
|
||
|
|
theLegendX + theLineSpace - 3, theLegendY - theFontHeight / 8);
|
||
|
|
}
|
||
|
|
|
||
|
|
iupPlotDrawText(canvas, theLegendX + theLineSpace, theLegendY, CD_WEST, dataset->GetName());
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
|
||
|
|
int iupStrToColor(const char* str, long *color);
|
||
|
|
|
||
|
|
long iupPlotDrawGetSampleColorTable(Ihandle* ih, int index)
|
||
|
|
{
|
||
|
|
char* value = IupGetAttributeId(ih, "SAMPLECOLOR", index);
|
||
|
|
long color;
|
||
|
|
if (iupStrToColor(value, &color))
|
||
|
|
return color;
|
||
|
|
|
||
|
|
switch (index % 12)
|
||
|
|
{
|
||
|
|
case 0: return cdEncodeColor(220, 60, 20);
|
||
|
|
case 1: return cdEncodeColor(0, 128, 0);
|
||
|
|
case 2: return cdEncodeColor(20, 100, 220);
|
||
|
|
|
||
|
|
case 3: return cdEncodeColor(220, 128, 0);
|
||
|
|
case 4: return cdEncodeColor(128, 0, 128);
|
||
|
|
case 5: return cdEncodeColor(0, 128, 220);
|
||
|
|
|
||
|
|
case 6: return cdEncodeColor(220, 60, 128);
|
||
|
|
case 7: return cdEncodeColor(128, 220, 0);
|
||
|
|
case 8: return cdEncodeColor(192, 60, 60);
|
||
|
|
|
||
|
|
case 9: return cdEncodeColor(60, 60, 128);
|
||
|
|
case 10: return cdEncodeColor(220, 60, 220);
|
||
|
|
case 11: return cdEncodeColor(60, 128, 128);
|
||
|
|
}
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
bool iupPlot::DrawSampleColorLegend(iupPlotDataSet *dataset, const iupPlotRect &inRect, cdCanvas* canvas, iupPlotRect &ioPos) const
|
||
|
|
{
|
||
|
|
if (mLegend.mShow)
|
||
|
|
{
|
||
|
|
int theFontHeight;
|
||
|
|
|
||
|
|
SetFont(canvas, mLegend.mFontStyle, mLegend.mFontSize);
|
||
|
|
cdCanvasGetFontDim(canvas, NULL, &theFontHeight, NULL, NULL);
|
||
|
|
|
||
|
|
int theMargin = theFontHeight / 2;
|
||
|
|
if (mLegend.mPosition == IUP_PLOT_BOTTOMCENTER)
|
||
|
|
theMargin = 0;
|
||
|
|
int theCount = dataset->GetCount();
|
||
|
|
int theTotalHeight = theCount*theFontHeight + 2 * theMargin;
|
||
|
|
int theLineSpace = theFontHeight / 2 + 3;
|
||
|
|
|
||
|
|
int theWidth, theMaxWidth = 0;
|
||
|
|
for (int i = 0; i < theCount; i++)
|
||
|
|
{
|
||
|
|
cdCanvasGetTextSize(canvas, ((iupPlotDataString *)dataset->GetDataX())->GetSampleString(i), &theWidth, NULL);
|
||
|
|
|
||
|
|
theWidth += theLineSpace;
|
||
|
|
|
||
|
|
if (theWidth > theMaxWidth)
|
||
|
|
theMaxWidth = theWidth;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (theMaxWidth == 0)
|
||
|
|
return false;
|
||
|
|
|
||
|
|
theMaxWidth += 2 * theMargin;
|
||
|
|
|
||
|
|
if (mLegend.mPosition != IUP_PLOT_XY)
|
||
|
|
{
|
||
|
|
int theScreenX = inRect.mX;
|
||
|
|
int theScreenY = inRect.mY;
|
||
|
|
|
||
|
|
switch (mLegend.mPosition)
|
||
|
|
{
|
||
|
|
case IUP_PLOT_TOPLEFT:
|
||
|
|
theScreenX += 2;
|
||
|
|
theScreenY += inRect.mHeight - theTotalHeight - 2;
|
||
|
|
break;
|
||
|
|
case IUP_PLOT_BOTTOMLEFT:
|
||
|
|
theScreenX += 2;
|
||
|
|
theScreenY += 2;
|
||
|
|
break;
|
||
|
|
case IUP_PLOT_BOTTOMRIGHT:
|
||
|
|
theScreenX += inRect.mWidth - theMaxWidth - 2;
|
||
|
|
theScreenY += 2;
|
||
|
|
break;
|
||
|
|
case IUP_PLOT_BOTTOMCENTER:
|
||
|
|
theScreenX += (inRect.mWidth - theMaxWidth) / 2;
|
||
|
|
theScreenY = theFontHeight / 4;
|
||
|
|
break;
|
||
|
|
default: // IUP_PLOT_TOPRIGHT
|
||
|
|
theScreenX += inRect.mWidth - theMaxWidth - 2;
|
||
|
|
theScreenY += inRect.mHeight - theTotalHeight - 2;
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
|
||
|
|
ioPos.mX = theScreenX;
|
||
|
|
ioPos.mY = theScreenY;
|
||
|
|
}
|
||
|
|
|
||
|
|
ioPos.mWidth = theMaxWidth;
|
||
|
|
ioPos.mHeight = theTotalHeight;
|
||
|
|
|
||
|
|
// Clip to the legend box
|
||
|
|
cdCanvasClipArea(canvas, ioPos.mX, ioPos.mX + ioPos.mWidth - 1,
|
||
|
|
ioPos.mY, ioPos.mY + ioPos.mHeight - 1);
|
||
|
|
|
||
|
|
if (mLegend.mBoxShow)
|
||
|
|
{
|
||
|
|
cdCanvasSetForeground(canvas, mLegend.mBoxBackColor);
|
||
|
|
iupPlotDrawBox(canvas, ioPos.mX + 1, ioPos.mY + 1, ioPos.mWidth - 2, ioPos.mHeight - 2);
|
||
|
|
|
||
|
|
cdCanvasSetForeground(canvas, mLegend.mBoxColor);
|
||
|
|
iupPlotDrawSetLineStyle(canvas, mLegend.mBoxLineStyle, mLegend.mBoxLineWidth);
|
||
|
|
iPlotDrawRectI(canvas, ioPos.mX, ioPos.mY, ioPos.mWidth, ioPos.mHeight);
|
||
|
|
}
|
||
|
|
|
||
|
|
for (int i = 0; i < theCount; i++)
|
||
|
|
{
|
||
|
|
cdCanvasSetForeground(canvas, iupPlotDrawGetSampleColorTable(ih, i));
|
||
|
|
|
||
|
|
int theLegendX = ioPos.mX + theMargin;
|
||
|
|
int theLegendY = ioPos.mY + (theCount - 1 - i)*theFontHeight + theMargin;
|
||
|
|
|
||
|
|
int boxSize = theLineSpace - 3;
|
||
|
|
|
||
|
|
cdCanvasBox(canvas, theLegendX, theLegendX + boxSize, theLegendY, theLegendY + boxSize);
|
||
|
|
|
||
|
|
iupPlotDrawText(canvas, theLegendX + theLineSpace, theLegendY + boxSize / 2, CD_WEST, ((iupPlotDataString *)dataset->GetDataX())->GetSampleString(i));
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
|
||
|
|
|