/* Copyright (C) 1991-2002, The Numerical Algorithms Group Ltd. All rights reserved. Copyright (C) 2007-2010, Gabriel Dos Reis. All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: - Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. - Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. - Neither the name of The Numerical Algorithms Group Ltd. nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #define _VIEWPORT2D_C #include #include #include #include #include #include #include #include #include #include "open-axiom.h" #define NotPoint (SHRT_MAX) #define eqNANQ(x) (x == NotPoint) #include "header2.h" #include "all_2d.H1" #include "Gfun.H1" #include "util.H1" #include "XSpadFill.h" #include "spadBitmap.bitmap" #include "spadMask.mask" using namespace OpenAxiom; #define rint(z) ((int)(z)) Atom wm_delete_window; /*************************** *** void writeTitle() *** ***************************/ void writeTitle(void) { int strlength; XWindowAttributes attribInfo; XGetWindowAttributes(dsply,viewport->titleWindow,&attribInfo); if (mono) GSetForeground(anotherGC,(float)foregroundColor,Xoption); else GSetForeground(anotherGC,(float)titleColor,Xoption); XClearWindow(dsply,viewport->titleWindow); /* it's behind the viewWindow */ strlength = strlen(viewport->title); GDrawImageString(anotherGC,viewport->titleWindow, centerX(anotherGC,viewport->title,strlength,attribInfo.width), 15,viewport->title,strlength,Xoption); } /********************************/ /*** void drawTheViewport() ***/ /********************************/ void drawTheViewport(int dFlag) { Window vw; XWindowAttributes vwInfo; pointListStruct *aList; pointStruct *aPoint; XPoint *anXPoint,*tempXpt; XArc *anXarc; Vertex *anX10Point; float jj,diffX, diffY, tickStart,oneTickUnit; int i,j,k,ii,halfSize; int charlength,strlength,halflength; int ptX,ptY,ptX1,ptY1,clipped, clipped1; int xAxis,yAxis,dummyInt, ascent, descent; int unitWidth,boxX,boxY,boxW,boxH; char aunit[20]; XCharStruct overall; drawMore = yes; vw = viewport->viewWindow; XGetWindowAttributes(dsply,vw,&vwInfo); aspectR = (float)vwInfo.width/(float)vwInfo.height; XTextExtents(unitFont,"o",1,&dummyInt,&ascent,&descent,&overall); /* Calculate various factors for use in projection. */ /* Scale the plot, so that the scaling between the axes remains constant and fits within the smaller of the two dimensions. */ charlength = overall.width; if (dFlag==Xoption) XClearWindow(dsply,vw); for (i=0; i=0) && (yAxis <= vwInfo.height)) GDrawLine(globalGC1,vw, 0,yAxis, vwInfo.width,yAxis, dFlag); if ((xAxis >=0) && (xAxis <= vwInfo.width)) GDrawLine(globalGC1,vw, xAxis,0, xAxis,vwInfo.height, dFlag); } tempXpt = anXPoint = xPointsArray[i].xPoint; anX10Point = xPointsArray[i].x10Point; anXarc = xPointsArray[i].arc; for (j=0,aList=graphArray[i].listOfListsOfPoints; (jlistOfPoints; (knumberOfPoints); k++,aPoint++) { if (graphStateArray[i].scaleX > 99.0) graphStateArray[i].scaleX = 99.0; if (graphStateArray[i].scaleY > 99.0) graphStateArray[0].scaleY = 99.0; if (i > 0) { if (isNaN(aPoint->x)) { anXPoint->x = anX10Point->x = NotPoint; } else { diffX = graphArray[i].xmax-graphArray[i].xmin; anXPoint->x = anX10Point->x = vwInfo.width * ((aPoint->x * diffX/(graphArray[0].xmax-graphArray[0].xmin) + (graphArray[0].originX - graphArray[i].originX*diffX / (graphArray[0].xmax-graphArray[0].xmin)) - graphStateArray[0].centerX)*graphStateArray[i].scaleX+0.5); } if (isNaN(aPoint->y)) { anXPoint->y = anX10Point->y = NotPoint; } else { diffY = graphArray[i].ymax-graphArray[i].ymin; anXPoint->y = anX10Point->y = vwInfo.height * aspectR * (1 - ((aPoint->y * diffY/(graphArray[0].ymax-graphArray[0].ymin) + (graphArray[0].originY - graphArray[i].originY* diffY/ (graphArray[0].ymax-graphArray[0].ymin))*aspectR - graphStateArray[0].centerY) * graphStateArray[i].scaleY + 0.5*aspectR)); } } else { if (isNaN(aPoint->x)) { anXPoint->x = anX10Point->x = NotPoint; } else { anXPoint->x = anX10Point->x = vwInfo.width * ((aPoint->x - graphStateArray[i].centerX) * graphStateArray[i].scaleX + 0.5); } if (isNaN(aPoint->y)) { anXPoint->y = anX10Point->y = NotPoint; } else { anXPoint->y = anX10Point->y = vwInfo.height * aspectR * (1 - ((aPoint->y - graphStateArray[i].centerY) * graphStateArray[i].scaleY + 0.5*aspectR)); } } /* first or last point */ if (k == 0 || k == (aList->numberOfPoints - 1)) { anX10Point->flags = 0; } else { anX10Point->flags = VertexCurved; } anXPoint++; anX10Point++; anXarc++; } /* for aPoint in pointList */ aPoint--; /* make it legal, the last one*/ if (graphStateArray[i].connectOn || graphStateArray[i].pointsOn) { halfSize = aList->pointSize/2; ptX = tempXpt->x; ptY = tempXpt->y; clipped = ptX > vwInfo.x && ptX < vwInfo.width && ptY > 0 && ptY < vwInfo.height; if (graphStateArray[i].pointsOn) { if (dFlag==Xoption) { if (mono) { GSetForeground(globalGC1, (float)monoColor((int)(aPoint->hue)), dFlag); } else { GSetForeground(globalGC1, (float)XSolidColor((int)(aPoint->hue), (int)(aPoint->shade)), dFlag); } } if (clipped && !eqNANQ(ptX) && !eqNANQ(ptY)) GFillArc(globalGC1,vw,ptX-halfSize, ptY-halfSize,aList->pointSize,aList->pointSize, 0,360*64, dFlag); } /* if points on */ for (ii=0, aPoint=aList->listOfPoints; iinumberOfPoints; ++ii, ++tempXpt, ++aPoint) { ptX1 = tempXpt->x; ptY1 = tempXpt->y; clipped1 = ptX1 > vwInfo.x && ptX1 < vwInfo.width && ptY1 > 0 && ptY1 < vwInfo.height; if (graphStateArray[i].connectOn) { if (dFlag==Xoption) { if (mono) { GSetForeground(globalGC1, (float)monoColor((int)(aList->lineColor-1)/5), dFlag); } else { GSetForeground(globalGC1, (float)XSolidColor((int)(aList->lineColor-1)/5, (int)((aList->lineColor-1)%5)/2), dFlag); } } /* if X */ if ((clipped || clipped1) && !eqNANQ(ptX) && !eqNANQ(ptY) && !eqNANQ(ptX1) && !eqNANQ(ptY1)) GDrawLine(globalGC1,vw, ptX,ptY,ptX1,ptY1, dFlag); } /* if lines on */ if (graphStateArray[i].pointsOn) { if (dFlag==Xoption) { if (mono) { GSetForeground(globalGC1, (float)monoColor((int)(aPoint->hue)), dFlag); } else { GSetForeground(globalGC1, (float)XSolidColor((int)(aPoint->hue), (int)(aPoint->shade)), dFlag); } } if (clipped1 && !eqNANQ(ptX1) && !eqNANQ(ptY1)) GFillArc(globalGC1,vw,ptX1-halfSize, ptY1-halfSize,aList->pointSize,aList->pointSize, 0,360*64, dFlag); } /* if points on */ ptX = ptX1; ptY = ptY1; clipped = clipped1; } /* for all points */ } /* if points or lines on */ if (graphStateArray[i].splineOn) { /* need spline color as well */ if (dFlag==Xoption) /* do only for X, ps uses default of black */ GSetForeground(globalGC1, (float)monoColor(148), dFlag); boxX = vwInfo.width * ((-0.5 - graphStateArray[i].centerX)* graphStateArray[i].scaleX + 0.5); boxY = vwInfo.height * aspectR * (1 - ((0.5 - graphStateArray[i].centerY)* graphStateArray[i].scaleY + 0.5*aspectR)); boxW = graphStateArray[i].scaleX * vwInfo.width + 1; boxH = graphStateArray[i].scaleY * vwInfo.height * aspectR + 1; GDrawRectangle(globalGC1,vw, boxX,boxY,boxW,boxH, dFlag); } tempXpt = anXPoint; } /* for a aList in listofListsOfPoints */ if (graphStateArray[i].unitsOn) { /* do only for X, ps uses default of black */ if (dFlag==Xoption) GSetForeground(unitGC, (float)monoColor(graphStateArray[i].unitsColor), dFlag); tickStart = calcUnitX(0); oneTickUnit = calcUnitX(1) - tickStart; /* ticks along the positive X axis */ unitWidth = 5*overall.width; /* limit on acceptable separation : 5 chars */ k = floor(unitWidth/oneTickUnit) +1; /* get skipping integer */ for (ii=0, jj = tickStart; jj < vwInfo.width; ii=ii+k,jj =jj+k* oneTickUnit) { if (jj >= 0) { /* ticks stuck to viewport*/ GDrawLine(unitGC,vw, (int)rint(jj),vwInfo.height-8,(int)rint(jj),vwInfo.height-4, dFlag); sprintf(aunit,"%0.3g",ii*graphArray[0].spadUnitX); strlength=strlen(aunit); halflength=XTextWidth(unitFont,aunit,strlength)/2; if (dFlag == Xoption) GDrawImageString(unitGC, vw, (int)rint(jj) - halflength, vwInfo.height -8 -descent, aunit, strlength, dFlag); if (dFlag == PSoption) GDrawImageString(unitGC, vw, (int)rint(jj) -(strlength*3) , vwInfo.height -14, aunit, strlength, dFlag); /* these are "eyeball" parameters for the given PS font */ } } /* ticks along the negative X axis */ for (ii=-k,jj=tickStart - k*oneTickUnit; jj > 0; ii=ii-k,jj = jj-k*oneTickUnit) { if (jj <= vwInfo.width) { /* ticks stuck to viewport*/ GDrawLine(unitGC,vw, (int)rint(jj),vwInfo.height-8,(int)rint(jj),vwInfo.height-4, dFlag); sprintf(aunit,"%0.3g",ii*graphArray[0].spadUnitX); strlength=strlen(aunit); halflength=XTextWidth(unitFont,aunit,strlength)/2; if (dFlag == Xoption) GDrawImageString(unitGC, vw, (int)rint(jj) - halflength, vwInfo.height -8 -descent, aunit, strlength, dFlag); if (dFlag == PSoption) GDrawImageString(unitGC, vw, (int)rint(jj) -(strlength*3) , vwInfo.height -14, aunit, strlength, dFlag); /* these are "eyeball" parameters for the given PS font */ } } tickStart = calcUnitY(0); oneTickUnit = calcUnitY(1) - tickStart; /* ticks along the positive Y axis */ unitWidth = 2*(ascent+descent); /* limit of acceptable separation */ k = floor(unitWidth/fabs(oneTickUnit)) +1; /* get skipping integer */ for (ii=0,jj = tickStart; jj > 0; ii=ii+k,jj =jj+k*oneTickUnit ) { if (jj < vwInfo.height) { /* ticks stuck to viewport*/ /* on the right */ /* GDrawLine(unitGC,vw, vwInfo.width-6,(int)rint(jj), vwInfo.width-2,(int)rint(jj),dFlag); */ /* on the left */ GDrawLine(unitGC,vw, 2,(int)rint(jj), 6,(int)rint(jj), dFlag); sprintf(aunit,"%0.3g",ii*graphArray[0].spadUnitY); strlength=strlen(aunit); XTextExtents(unitFont,aunit,strlength,&dummyInt, &ascent,&descent,&overall); halflength=overall.width; /* let's reuse that variable */ if(dFlag == Xoption){ /* on the right */ /* GDrawImageString(unitGC, vw, vwInfo.width-halflength -6-descent, (int)rint(jj)+ascent/2 , aunit, strlength, dFlag); */ /* on the left */ GDrawImageString(unitGC, vw, 8 + charlength/2, (int)rint(jj)+ascent/2 , aunit, strlength, dFlag); } if(dFlag == PSoption){ /* on the right */ /* GDrawImageString(unitGC, vw, vwInfo.width - 6 - (strlength*6), (int)rint(jj)+4, aunit, strlength, dFlag); */ /* on the left */ GDrawImageString(unitGC, vw, 8,(int)rint(jj)+4, aunit, strlength, dFlag); /* these are "eyeball" parameters for the given PS font */ } } } /* ticks along the negative Y axis */ for (ii=(-k),jj = tickStart - k*oneTickUnit; jj < vwInfo.height; ii=ii-k,jj =jj-k*oneTickUnit) { if (jj > 0) { /* ticks stuck to viewport*/ /* on the right */ /* GDrawLine(unitGC,vw, vwInfo.width-6,(int)rint(jj), vwInfo.width-2,(int)rint(jj), dFlag); */ /* on the left */ GDrawLine(unitGC,vw, 2,(int)rint(jj), 6,(int)rint(jj), dFlag); sprintf(aunit,"%0.3g",ii*graphArray[0].spadUnitY); strlength=strlen(aunit); XTextExtents(unitFont,aunit,strlength,&dummyInt, &ascent,&descent,&overall); halflength=overall.width; /* let's reuse that variable */ if(dFlag == Xoption){ /* on the right */ /* GDrawImageString(unitGC, vw, vwInfo.width-halflength -6-descent, (int)rint(jj)+ascent/2 , aunit, strlength, dFlag); */ /* on the left */ GDrawImageString(unitGC, vw, 8 + charlength/2, (int)rint(jj)+ascent/2 , aunit, strlength, dFlag); } if(dFlag == PSoption){ /* on the right */ /* GDrawImageString(unitGC, vw, vwInfo.width -6 -(strlength*6), (int)rint(jj)+4 , aunit, strlength, dFlag); */ /* on the left */ GDrawImageString(unitGC, vw, 8, (int)rint(jj)+4 , aunit, strlength, dFlag); /* these are "eyeball" parameters for the given PS font */ } } } } /* if unitsOn */ } /* if graph i exists and is showing */ } /* for i in graphs */ if (dFlag==Xoption) { if (!followMouse) { /* no need to do this while autorepeating */ makeMessageFromData(queriedGraph); writeControlMessage(); } XFlush(dsply); } } /* drawViewport() */ /************************************ *** viewPoints *makeViewport() *** ************************************/ viewPoints * makeViewport(const char* title,int vX,int vY,int vW,int vH,int showCP) { Pixmap spadbits,spadmask; XSetWindowAttributes viewAttrib; XSizeHints titleSizeHints,viewSizeHints; Window viewTitleWindow,viewGraphWindow; XColor foreColor, backColor; #ifdef DEBUG fprintf(stderr,"view2D: About to make a viewport\n"); #endif /* Create a viewport */ if (!(viewport = (viewPoints *)malloc(sizeof(viewPoints)))) { fprintf(stderr,"Ran out of memory (malloc) trying to create a viewport.\n"); openaxiom_sleep(5); exitWithAck(RootWindow(dsply,scrn),Window,-1); } #ifdef DEBUG fprintf(stderr,"view2D: Made a viewport\n"); #endif strcpy(viewport->title,title); viewport->closing = no; viewport->allowDraw = yes; /* just draw axes the first time around */ viewport->axesOn = axesON; viewport->unitsOn = unitsON; viewport->pointsOn = pointsON; viewport->linesOn = connectON; viewport->splineOn = splineON; /**** Make the windows for the viewport ****/ spadbits = XCreateBitmapFromData(dsply,rtWindow, (const char*) spadBitmap_bits, spadBitmap_width,spadBitmap_height); spadmask = XCreateBitmapFromData(dsply,rtWindow, (const char*) spadMask_bits, spadMask_width,spadMask_height); viewAttrib.background_pixel = backgroundColor; viewAttrib.border_pixel = foregroundColor; viewAttrib.override_redirect = overrideManager; viewAttrib.colormap = colorMap; foreColor.pixel = foregroundColor; backColor.pixel = backgroundColor; XQueryColor(dsply,colorMap,&foreColor); XQueryColor(dsply,colorMap,&backColor); viewAttrib.cursor = XCreatePixmapCursor(dsply,spadbits,spadmask, &foreColor,&backColor,spadBitmap_x_hot,spadBitmap_y_hot); viewAttrib.event_mask = titleMASK; if (vW) { titleSizeHints.flags = PPosition | PSize; titleSizeHints.x = vX; titleSizeHints.y = vY; titleSizeHints.width = vW; titleSizeHints.height = vH; } else { titleSizeHints.flags = PSize; titleSizeHints.width = viewWidth; titleSizeHints.height = viewHeight; } viewTitleWindow = XCreateWindow(dsply,rtWindow,vX,vY,vW,vH, viewBorderWidth, CopyFromParent,InputOutput,CopyFromParent, viewportTitleCreateMASK,&viewAttrib); wm_delete_window = XInternAtom(dsply, "WM_DELETE_WINDOW", False); (void) XSetWMProtocols(dsply, viewTitleWindow, &wm_delete_window, 1); XSetNormalHints(dsply,viewTitleWindow,&titleSizeHints); XSetStandardProperties(dsply,viewTitleWindow,"OpenAxiom 2D",viewport->title, None,NULL,0,&titleSizeHints); viewport->titleWindow = viewTitleWindow; viewAttrib.event_mask = viewportMASK; viewSizeHints.flags = PPosition | PSize; viewSizeHints.x = -viewBorderWidth; viewSizeHints.y = titleHeight; viewSizeHints.width = titleSizeHints.width; viewSizeHints.height = titleSizeHints.height - (titleHeight + appendixHeight); viewGraphWindow = XCreateWindow(dsply,viewTitleWindow, viewSizeHints.x,viewSizeHints.y, viewSizeHints.width,viewSizeHints.height, viewBorderWidth, CopyFromParent,InputOutput,CopyFromParent, viewportCreateMASK,&viewAttrib); XSetNormalHints(dsply,viewGraphWindow,&viewSizeHints); XSetStandardProperties(dsply,viewGraphWindow,"2D Viewport","2D Viewport", None,NULL,0,&viewSizeHints); viewport->viewWindow = viewGraphWindow; /*Make the control panel for the viewport. */ viewport->controlPanel = makeControlPanel(); if ((viewport->haveControl = showCP)) putControlPanelSomewhere(anywhere); XSync(dsply,False); return(viewport); } /********************************************* ***** viewPoints *makeView2D(viewdata) **** *********************************************/ viewPoints * makeView2D(view2DStruct *viewdata) { viewPoints *vPoints; vPoints = makeViewport(viewdata->title, viewdata->vX,viewdata->vY, viewdata->vW,viewdata->vH,viewdata->showCP); vPoints->allowDraw = yes; /* draw everything from now on */ if (viewdata->showCP) clearControlMessage(); writeTitle(); XMapWindow(dsply,vPoints->viewWindow); XMapWindow(dsply,vPoints->titleWindow); XSync(dsply,0); drawViewport(Xoption); /* draw viewport with X routines (as opposed to PS) */ return(vPoints); } /* makeView2D */