From c7bcf6e111e63763aea2157860b44c3bd777d5b2 Mon Sep 17 00:00:00 2001 From: alex Date: Sat, 23 Mar 2002 19:59:39 +0000 Subject: [PATCH] Changes in rrd_graph; see NEWS git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@103 a5681a0c-68f1-0310-ab6d-d61299d08faa --- program/src/rrd_graph.c | 418 ++++++++++++++++++++++++---------------- program/src/rrd_graph.h | 4 +- 2 files changed, 251 insertions(+), 171 deletions(-) diff --git a/program/src/rrd_graph.c b/program/src/rrd_graph.c index 2e9e0091..7908ad45 100644 --- a/program/src/rrd_graph.c +++ b/program/src/rrd_graph.c @@ -1221,7 +1221,6 @@ print_calc(image_desc_t *im, char ***prdata) case GF_LINE: case GF_AREA: case GF_TICK: - case GF_PART: case GF_STACK: case GF_HRULE: case GF_VRULE: @@ -1230,6 +1229,7 @@ print_calc(image_desc_t *im, char ***prdata) case GF_DEF: case GF_CDEF: case GF_VDEF: + case GF_PART: break; } } @@ -1280,7 +1280,7 @@ leg_place(image_desc_t *im) leg_cc--; im->gdes[i].legend[leg_cc]='\0'; } - if (leg_cc != 0 ){ + if (leg_cc != 0 ){ legspace[i]=(prt_fctn=='g' ? 0 : interleg); if (fill > 0){ @@ -1355,7 +1355,7 @@ leg_place(image_desc_t *im) mark = ii; } } - im->ygif = leg_y+6; + im->ygif = leg_y; free(legspace); } return 0; @@ -1654,6 +1654,8 @@ vertical_grid( ti = find_next_time(ti,im->xlab_user.labtm,im->xlab_user.labst) ){ tilab= ti + im->xlab_user.precis/2; /* correct time for the label */ + /* are we inside the graph ? */ + if (ti < im->start || ti > im->end) continue; #if HAVE_STRFTIME strftime(graph_label,99,im->xlab_user.stst,localtime(&tilab)); @@ -1716,11 +1718,9 @@ grid_paint( ) { long i; - int boxH=8, boxV=8; int res=0; double x0,x1,x2,x3,y0,y1,y2,y3; /* points for filled graph and more*/ gfx_node_t *node; - /* draw 3d border */ node = gfx_new_area (canvas, 0,im->ygif, @@ -1764,68 +1764,85 @@ grid_paint( } /* yaxis description */ - gfx_new_text( canvas, - 7, (im->yorigin - im->ysize/2), - im->graph_col[GRC_FONT], - im->text_prop[TEXT_PROP_AXIS].font, - im->text_prop[TEXT_PROP_AXIS].size, im->tabwidth, 270.0, - GFX_H_CENTER, GFX_V_CENTER, - im->ylegend); + #if 0 + gfx_new_text( canvas, + 7, (im->yorigin - im->ysize/2), + im->graph_col[GRC_FONT], + im->text_prop[TEXT_PROP_AXIS].font, + im->text_prop[TEXT_PROP_AXIS].size, im->tabwidth, 270.0, + GFX_H_CENTER, GFX_V_CENTER, + im->ylegend); + #else + /* horrible hack until we can actually print vertically */ + { + int n; + int l=strlen(im->ylegend); + char s[2]; + for (n=0;nylegend);n++) { + s[0]=im->ylegend[n]; + s[1]='\0'; + gfx_new_text(canvas,7,im->text_prop[TEXT_PROP_AXIS].size*(l-n), + im->graph_col[GRC_FONT], + im->text_prop[TEXT_PROP_AXIS].font, + im->text_prop[TEXT_PROP_AXIS].size, im->tabwidth, 270.0, + GFX_H_CENTER, GFX_V_CENTER, + s); + } + } + #endif /* graph title */ gfx_new_text( canvas, - im->xgif/2, im->text_prop[TEXT_PROP_TITLE].size*1.5, + im->xgif/2, im->text_prop[TEXT_PROP_TITLE].size, im->graph_col[GRC_FONT], im->text_prop[TEXT_PROP_TITLE].font, im->text_prop[TEXT_PROP_TITLE].size, im->tabwidth, 0.0, GFX_H_CENTER, GFX_V_CENTER, im->title); - /* graph labels */ - if( !(im->extra_flags & NOLEGEND) ) { + /* graph labels */ + if( !(im->extra_flags & NOLEGEND) ) { for(i=0;igdes_c;i++){ - if(im->gdes[i].legend[0] =='\0') - continue; + if(im->gdes[i].legend[0] =='\0') + continue; - if(im->gdes[i].gf != GF_GPRINT && im->gdes[i].gf != GF_COMMENT){ - x0 = im->gdes[i].leg_x; - y0 = im->gdes[i].leg_y+1.0; - x1 = x0; - x2 = x0+boxH; - x3 = x0+boxH; - y1 = y0+boxV; - y2 = y0+boxV; - y3 = y0; - node = gfx_new_area(canvas, x0,y0,x1,y1,x2,y2 ,im->gdes[i].col); - gfx_add_point ( node, x3, y3 ); -/* gfx_add_point ( node, x0, y0 ); */ - node = gfx_new_line(canvas, x0,y0,x1,y1 ,GRIDWIDTH, im->graph_col[GRC_FRAME]); - gfx_add_point ( node, x2, y2 ); - gfx_add_point ( node, x3, y3 ); - gfx_add_point ( node, x0, y0 ); - - gfx_new_text ( canvas, x0+boxH+6, (y0+y2) / 2.0, - im->graph_col[GRC_FONT], - im->text_prop[TEXT_PROP_AXIS].font, - im->text_prop[TEXT_PROP_AXIS].size, - im->tabwidth,0.0, GFX_H_LEFT, GFX_V_CENTER, - im->gdes[i].legend ); - - } else { - x0 = im->gdes[i].leg_x; - y0 = im->gdes[i].leg_y; - - gfx_new_text ( canvas, x0, (y0+y2) / 2.0, - im->graph_col[GRC_FONT], - im->text_prop[TEXT_PROP_AXIS].font, - im->text_prop[TEXT_PROP_AXIS].size, - im->tabwidth,0.0, GFX_H_LEFT, GFX_V_BOTTOM, - im->gdes[i].legend ); - - } - } - } -} + /* im->gdes[i].leg_y is the bottom of the legend */ + x0 = im->gdes[i].leg_x; + y0 = im->gdes[i].leg_y; + /* Box needed? */ + if ( im->gdes[i].gf != GF_GPRINT + && im->gdes[i].gf != GF_COMMENT) { + int boxH, boxV; + + boxH = gfx_get_text_width(0, + im->text_prop[TEXT_PROP_AXIS].font, + im->text_prop[TEXT_PROP_AXIS].size, + im->tabwidth,"M") * 1.25; + boxV = boxH; + + node = gfx_new_area(canvas, + x0,y0-boxV, + x0,y0, + x0+boxH,y0, + im->gdes[i].col); + gfx_add_point ( node, x0+boxH, y0-boxV ); + node = gfx_new_line(canvas, + x0,y0-boxV, x0,y0, + 1,0x000000FF); + gfx_add_point(node,x0+boxH,y0); + gfx_add_point(node,x0+boxH,y0-boxV); + gfx_add_point(node,x0,y0-boxV); + x0 += boxH / 1.25 * 2; + } + gfx_new_text ( canvas, x0, y0, + im->graph_col[GRC_FONT], + im->text_prop[TEXT_PROP_AXIS].font, + im->text_prop[TEXT_PROP_AXIS].size, + im->tabwidth,0.0, GFX_H_LEFT, GFX_V_BOTTOM, + im->gdes[i].legend ); + } + } + } /***************************************************** @@ -1902,6 +1919,147 @@ pie_part(gfx_canvas_t *canvas, gfx_color_t color, } } +int +graph_size_location(image_desc_t *im, int elements, int piechart ) +{ + /* The actual size of the image to draw is determined from + ** several sources. The size given on the command line is + ** the graph area but we need more as we have to draw labels + ** and other things outside the graph area + */ + + /* +-+-------------------------------------------+ + ** |l|.................title.....................| + ** |e+--+-------------------------------+--------+ + ** |b| b| | | + ** |a| a| | pie | + ** |l| l| main graph area | chart | + ** |.| .| | area | + ** |t| y| | | + ** |r+--+-------------------------------+--------+ + ** |e| | x-axis labels | | + ** |v+--+-------------------------------+--------+ + ** | |..............legends......................| + ** +-+-------------------------------------------+ + */ + int Xvertical=0, Yvertical=0, + Xtitle =0, Ytitle =0, + Xylabel =0, Yylabel =0, + Xmain =0, Ymain =0, + Xpie =0, Ypie =0, + Xxlabel =0, Yxlabel =0, + Xlegend =0, Ylegend =0, + Xspacing =10, Yspacing =10; + + if (im->ylegend[0] != '\0') { + Xvertical = im->text_prop[TEXT_PROP_LEGEND].size *2; + Yvertical = im->text_prop[TEXT_PROP_LEGEND].size * (strlen(im->ylegend)+1); + } + + if (im->title[0] != '\0') { + /* The title is placed "inbetween" two text lines so it + ** automatically has some vertical spacing. The horizontal + ** spacing is added here, on each side. + */ + Xtitle = gfx_get_text_width(0, + im->text_prop[TEXT_PROP_TITLE].font, + im->text_prop[TEXT_PROP_TITLE].size, + im->tabwidth, + im->title) + 2*Xspacing; + Ytitle = im->text_prop[TEXT_PROP_TITLE].size*2; + } + + if (elements) { + Xmain=im->xsize; + Ymain=im->ysize; + if (im->draw_x_grid) { + Xxlabel=Xmain; + Yxlabel=im->text_prop[TEXT_PROP_LEGEND].size *2; + } + if (im->draw_y_grid) { + Xylabel=im->text_prop[TEXT_PROP_LEGEND].size *6; + Yylabel=Ymain; + } + } + + if (piechart) { + im->piesize=im->xsizeysize?im->xsize:im->ysize; + Xpie=im->piesize; + Ypie=im->piesize; + } + + /* Now calculate the total size. Insert some spacing where + desired. im->xorigin and im->yorigin need to correspond + with the lower left corner of the main graph area or, if + this one is not set, the imaginary box surrounding the + pie chart area. */ + + /* The legend width cannot yet be determined, as a result we + ** have problems adjusting the image to it. For now, we just + ** forget about it at all; the legend will have to fit in the + ** size already allocated. + */ + im->xgif = Xylabel + Xmain + Xpie + Xspacing; + if (Xmain) im->xgif += Xspacing; + if (Xpie) im->xgif += Xspacing; + im->xorigin = Xspacing + Xylabel; + if (Xtitle > im->xgif) im->xgif = Xtitle; + if (Xvertical) { + im->xgif += Xvertical; + im->xorigin += Xvertical; + } + xtr(im,0); + + /* The vertical size is interesting... we need to compare + ** the sum of {Ytitle, Ymain, Yxlabel, Ylegend} with Yvertical + ** however we need to know {Ytitle+Ymain+Yxlabel} in order to + ** start even thinking about Ylegend. + ** + ** Do it in three portions: First calculate the inner part, + ** then do the legend, then adjust the total height of the img. + */ + + /* reserve space for main and/or pie */ + im->ygif = Ymain + Yxlabel; + if (im->ygif < Ypie) im->ygif = Ypie; + im->yorigin = im->ygif - Yxlabel; + /* reserve space for the title *or* some padding above the graph */ + if (Ytitle) { + im->ygif += Ytitle; + im->yorigin += Ytitle; + } else { + im->ygif += Yspacing; + im->yorigin += Yspacing; + } + /* reserve space for padding below the graph */ + im->ygif += Yspacing; + ytr(im,DNAN); + + /* Determine where to place the legends onto the image. + ** Adjust im->ygif to match the space requirements. + */ + if(leg_place(im)==-1) + return -1; + + /* last of three steps: check total height of image */ + if (im->ygif < Yvertical) im->ygif = Yvertical; + +#if 0 + if (Xlegend > im->xgif) { + im->xgif = Xlegend; + /* reposition Pie */ +#endif + + /* The pie is placed in the upper right hand corner, + ** just below the title (if any) and with sufficient + ** padding. + */ + im->pie_x = im->xgif - Xspacing - Xpie/2; + im->pie_y = im->yorigin-Ymain+Ypie/2; + + return 0; +} + /* draw that picture thing ... */ int graph_paint(image_desc_t *im, char ***calcpr) @@ -1909,7 +2067,7 @@ graph_paint(image_desc_t *im, char ***calcpr) int i,ii; int lazy = lazy_check(im); int piechart = 0; - double PieStart=0.0, PieSize=0.0, PieCenterX=0.0, PieCenterY=0.0; + double PieStart=0.0; FILE *fo; gfx_canvas_t *canvas; gfx_node_t *node; @@ -1930,6 +2088,14 @@ graph_paint(image_desc_t *im, char ***calcpr) if(data_calc(im)==-1) return -1; + /* check if we need to draw a piechart */ + for(i=0;igdes_c;i++){ + if (im->gdes[i].gf == GF_PART) { + piechart=1; + break; + } + } + /* calculate and PRINT and GPRINT definitions. We have to do it at * this point because it will affect the length of the legends * if there are no graph elements we stop here ... @@ -1937,7 +2103,10 @@ graph_paint(image_desc_t *im, char ***calcpr) */ i=print_calc(im,calcpr); if(i<0) return -1; - if(i==0 || lazy) return 0; + if(((i==0)&&(piechart==0)) || lazy) return 0; + + /* If there's only the pie chart to draw, signal this */ + if (i==0) piechart=2; /* get actual drawing data and find min and max values*/ if(data_proc(im)==-1) @@ -1948,57 +2117,16 @@ graph_paint(image_desc_t *im, char ***calcpr) if(!im->rigid && ! im->logarithmic) expand_range(im); /* make sure the upper and lower limit are sensible values */ - - /* init xtr and ytr */ - /* determine the actual size of the gif to draw. The size given - on the cmdline is the graph area. But we need more as we have - draw labels and other things outside the graph area */ - - - im->xorigin = 10 + 9 * im->text_prop[TEXT_PROP_LEGEND].size; - - xtr(im,0); - - im->yorigin = 10 + im->ysize; - - ytr(im,DNAN); - - if(im->title[0] != '\0') - im->yorigin += im->text_prop[TEXT_PROP_TITLE].size*3+4; - - im->xgif= 20 +im->xsize + im->xorigin; - im->ygif= im->yorigin+2* im->text_prop[TEXT_PROP_LEGEND].size; - - /* check if we need to draw a piechart */ - for(i=0;igdes_c;i++){ - if (im->gdes[i].gf == GF_PART) { - piechart=1; - break; - } - } - if (piechart) { - /* allocate enough space for the piechart itself (PieSize), 20% - ** more for the background and an additional 50 pixels spacing. - */ - if (im->xsize < im->ysize) - PieSize = im->xsize; - else - PieSize = im->ysize; - im->xgif += PieSize*1.2 + 50; - - PieCenterX = im->xorigin + im->xsize + 50 + PieSize*0.6; - PieCenterY = im->yorigin - PieSize*0.5; - } - - /* determine where to place the legends onto the graphics. - and set im->ygif to match space requirements for text */ - if(leg_place(im)==-1) +/************************************************************** + *** Calculating sizes and locations became a bit confusing *** + *** so I moved this into a separate function. *** + **************************************************************/ + if(graph_size_location(im,i,piechart)==-1) return -1; canvas=gfx_new_canvas(); - /* the actual graph is created by going through the individual graph elements and then drawing them */ @@ -2010,82 +2138,27 @@ graph_paint(image_desc_t *im, char ***calcpr) gfx_add_point(node,0, im->ygif); - node=gfx_new_area ( canvas, + if (piechart != 2) { + node=gfx_new_area ( canvas, im->xorigin, im->yorigin, im->xorigin + im->xsize, im->yorigin, im->xorigin + im->xsize, im->yorigin-im->ysize, im->graph_col[GRC_CANVAS]); - gfx_add_point(node,im->xorigin, im->yorigin - im->ysize); - -#if 0 -/****************************************************************** - ** Just to play around. If you see this, I forgot to remove it ** - ******************************************************************/ - im->ygif+=100; - node=gfx_new_area(canvas, - 0, im->ygif-100, - im->xgif, im->ygif-100, - im->xgif, im->ygif, - im->graph_col[GRC_CANVAS]); - gfx_add_point(node,0,im->ygif); - - /* Four areas: - ** top left: current way, solid color - ** top right: proper way, solid color - ** bottom left: current way, alpha=0x80, partially overlapping - ** bottom right: proper way, alpha=0x80, partially overlapping - */ - { - double x,y,x1,y1,x2,y2,x3,y3,x4,y4; - - x=(im->xgif-40)/6; - y= (100-40)/6; - x1= 20; y1=im->ygif-100+20; - x2=3*x+20; y2=im->ygif-100+20; - x3= x+20; y3=im->ygif-100+20+2*y; - x4=4*x+20; y4=im->ygif-100+20+2*y; + gfx_add_point(node,im->xorigin, im->yorigin - im->ysize); - node=gfx_new_area(canvas, - x1,y1, - x1+3*x,y1, - x1+3*x,y1+3*y, - 0xFF0000FF); - gfx_add_point(node,x1,y1+3*y); - node=gfx_new_area(canvas, - x2,y2, - x2,y2+3*y, - x2+3*x,y2+3*y, - 0xFFFF00FF); - gfx_add_point(node,x2+3*x,y2); - node=gfx_new_area(canvas, - x3,y3, - x3+2*x,y3, - x3+2*x,y3+3*y, - 0x00FF007F); - gfx_add_point(node,x3,y3+3*y); - node=gfx_new_area(canvas, - x4,y4, - x4,y4+3*y, - x4+2*x,y4+3*y, - 0x0000FF7F); - gfx_add_point(node,x4+2*x,y4); + if (im->minval > 0.0) + areazero = im->minval; + if (im->maxval < 0.0) + areazero = im->maxval; + + axis_paint(im,canvas); } - -#endif if (piechart) { - pie_part(canvas,im->graph_col[GRC_CANVAS],PieCenterX,PieCenterY,PieSize*0.6,0,2*M_PI); + pie_part(canvas,im->graph_col[GRC_CANVAS],im->pie_x,im->pie_y,im->piesize*0.5,0,2*M_PI); } - if (im->minval > 0.0) - areazero = im->minval; - if (im->maxval < 0.0) - areazero = im->maxval; - - axis_paint(im,canvas); - - for(i=0;igdes_c;i++){ switch(im->gdes[i].gf){ case GF_CDEF: @@ -2211,7 +2284,7 @@ graph_paint(image_desc_t *im, char ***calcpr) if (finite(im->gdes[i].yrule)) { /* even the fetched var can be NaN */ pie_part(canvas,im->gdes[i].col, - PieCenterX,PieCenterY,PieSize/2, + im->pie_x,im->pie_y,im->piesize*0.4, M_PI*2.0*PieStart/100.0, M_PI*2.0*(PieStart+im->gdes[i].yrule)/100.0); PieStart += im->gdes[i].yrule; @@ -2219,6 +2292,11 @@ graph_paint(image_desc_t *im, char ***calcpr) break; } /* switch */ } + if (piechart==2) { + im->draw_x_grid=0; + im->draw_y_grid=0; + } + /* grid_paint also does the text */ grid_paint(im,canvas); /* the RULES are the last thing to paint ... */ diff --git a/program/src/rrd_graph.h b/program/src/rrd_graph.h index 9df21443..d222f9ae 100644 --- a/program/src/rrd_graph.h +++ b/program/src/rrd_graph.h @@ -118,7 +118,7 @@ typedef struct image_desc_t { /* configuration of graph */ char graphfile[MAXPATH]; /* filename for graphic */ - long xsize,ysize; /* graph area size in pixels */ + long xsize,ysize,piesize; /* graph area size in pixels */ double zoom; /* zoom for graph */ gfx_color_t graph_col[__GRC_END__]; /* real colors for the graph */ text_prop_t text_prop[TEXT_PROP_LAST]; /* text properties */ @@ -147,6 +147,7 @@ typedef struct image_desc_t { /* status information */ long xorigin,yorigin;/* where is (0,0) of the graph */ + long pie_x,pie_y; /* where is the centerpoint */ long xgif,ygif; /* total size of the gif */ int interlaced; /* will the graph be interlaced? */ double magfact; /* numerical magnitude*/ @@ -207,3 +208,4 @@ int bad_format(char *); int vdef_parse(struct graph_desc_t *,char *); int vdef_calc(image_desc_t *, int); int vdef_percent_compar(const void *,const void *); +int graph_size_location(image_desc_t *, int, int); -- 2.30.2