| <?php |
| /*======================================================================= |
| // File: JPGRAPH_CANVTOOLS.PHP |
| // Description: Some utilities for text and shape drawing on a canvas |
| // Created: 2002-08-23 |
| // Author: Johan Persson (johanp@aditus.nu) |
| // Ver: $Id$ |
| // |
| // Copyright (c) Aditus Consulting. All rights reserved. |
| //======================================================================== |
| */ |
| |
| DEFINE('CORNER_TOPLEFT',0); |
| DEFINE('CORNER_TOPRIGHT',1); |
| DEFINE('CORNER_BOTTOMRIGHT',2); |
| DEFINE('CORNER_BOTTOMLEFT',3); |
| |
| |
| //=================================================== |
| // CLASS CanvasScale |
| // Description: Define a scale for canvas so we |
| // can abstract away with absolute pixels |
| //=================================================== |
| |
| class CanvasScale { |
| var $g; |
| var $w,$h; |
| var $ixmin=0,$ixmax=10,$iymin=0,$iymax=10; |
| |
| function CanvasScale(&$graph,$xmin=0,$xmax=10,$ymin=0,$ymax=10) { |
| $this->g = &$graph; |
| $this->w = $graph->img->width; |
| $this->h = $graph->img->height; |
| $this->ixmin = $xmin; |
| $this->ixmax = $xmax; |
| $this->iymin = $ymin; |
| $this->iymax = $ymax; |
| } |
| |
| function Set($xmin=0,$xmax=10,$ymin=0,$ymax=10) { |
| $this->ixmin = $xmin; |
| $this->ixmax = $xmax; |
| $this->iymin = $ymin; |
| $this->iymax = $ymax; |
| } |
| |
| function Translate($x,$y) { |
| $xp = round(($x-$this->ixmin)/($this->ixmax - $this->ixmin) * $this->w); |
| $yp = round(($y-$this->iymin)/($this->iymax - $this->iymin) * $this->h); |
| return array($xp,$yp); |
| } |
| |
| function TranslateX($x) { |
| $xp = round(($x-$this->ixmin)/($this->ixmax - $this->ixmin) * $this->w); |
| return $xp; |
| } |
| |
| function TranslateY($y) { |
| $yp = round(($y-$this->iymin)/($this->iymax - $this->iymin) * $this->h); |
| return $yp; |
| } |
| |
| } |
| |
| |
| //=================================================== |
| // CLASS Shape |
| // Description: Methods to draw shapes on canvas |
| //=================================================== |
| class Shape { |
| var $img,$scale; |
| |
| function Shape(&$aGraph,&$scale) { |
| $this->img = &$aGraph->img; |
| $this->img->SetColor('black'); |
| $this->scale = &$scale; |
| } |
| |
| function SetColor($aColor) { |
| $this->img->SetColor($aColor); |
| } |
| |
| function Line($x1,$y1,$x2,$y2) { |
| list($x1,$y1) = $this->scale->Translate($x1,$y1); |
| list($x2,$y2) = $this->scale->Translate($x2,$y2); |
| $this->img->Line($x1,$y1,$x2,$y2); |
| } |
| |
| function Polygon($p,$aClosed=false) { |
| $n=count($p); |
| for($i=0; $i < $n; $i+=2 ) { |
| $p[$i] = $this->scale->TranslateX($p[$i]); |
| $p[$i+1] = $this->scale->TranslateY($p[$i+1]); |
| } |
| $this->img->Polygon($p,$aClosed); |
| } |
| |
| function FilledPolygon($p) { |
| $n=count($p); |
| for($i=0; $i < $n; $i+=2 ) { |
| $p[$i] = $this->scale->TranslateX($p[$i]); |
| $p[$i+1] = $this->scale->TranslateY($p[$i+1]); |
| } |
| $this->img->FilledPolygon($p); |
| } |
| |
| |
| // Draw a bezier curve with defining points in the $aPnts array |
| // using $aSteps steps. |
| // 0=x0, 1=y0 |
| // 2=x1, 3=y1 |
| // 4=x2, 5=y2 |
| // 6=x3, 7=y3 |
| function Bezier($p,$aSteps=40) { |
| $x0 = $p[0]; |
| $y0 = $p[1]; |
| // Calculate coefficients |
| $cx = 3*($p[2]-$p[0]); |
| $bx = 3*($p[4]-$p[2])-$cx; |
| $ax = $p[6]-$p[0]-$cx-$bx; |
| $cy = 3*($p[3]-$p[1]); |
| $by = 3*($p[5]-$p[3])-$cy; |
| $ay = $p[7]-$p[1]-$cy-$by; |
| |
| // Step size |
| $delta = 1.0/$aSteps; |
| |
| $x_old = $x0; |
| $y_old = $y0; |
| for($t=$delta; $t<=1.0; $t+=$delta) { |
| $tt = $t*$t; $ttt=$tt*$t; |
| $x = $ax*$ttt + $bx*$tt + $cx*$t + $x0; |
| $y = $ay*$ttt + $by*$tt + $cy*$t + $y0; |
| $this->Line($x_old,$y_old,$x,$y); |
| $x_old = $x; |
| $y_old = $y; |
| } |
| $this->Line($x_old,$y_old,$p[6],$p[7]); |
| } |
| |
| function Rectangle($x1,$y1,$x2,$y2) { |
| list($x1,$y1) = $this->scale->Translate($x1,$y1); |
| list($x2,$y2) = $this->scale->Translate($x2,$y2); |
| $this->img->Rectangle($x1,$y1,$x2,$y2); |
| } |
| |
| function FilledRectangle($x1,$y1,$x2,$y2) { |
| list($x1,$y1) = $this->scale->Translate($x1,$y1); |
| list($x2,$y2) = $this->scale->Translate($x2,$y2); |
| $this->img->FilledRectangle($x1,$y1,$x2,$y2); |
| } |
| |
| function Circle($x1,$y1,$r) { |
| list($x1,$y1) = $this->scale->Translate($x1,$y1); |
| if( $r >= 0 ) |
| $r = $this->scale->TranslateX($r); |
| else |
| $r = -$r; |
| $this->img->Circle($x1,$y1,$r); |
| } |
| |
| function FilledCircle($x1,$y1,$r) { |
| list($x1,$y1) = $this->scale->Translate($x1,$y1); |
| if( $r >= 0 ) |
| $r = $this->scale->TranslateX($r); |
| else |
| $r = -$r; |
| $this->img->FilledCircle($x1,$y1,$r); |
| } |
| |
| function RoundedRectangle($x1,$y1,$x2,$y2,$r=null) { |
| list($x1,$y1) = $this->scale->Translate($x1,$y1); |
| list($x2,$y2) = $this->scale->Translate($x2,$y2); |
| |
| if( $r == null ) |
| $r = 5; |
| elseif( $r >= 0 ) |
| $r = $this->scale->TranslateX($r); |
| else |
| $r = -$r; |
| $this->img->RoundedRectangle($x1,$y1,$x2,$y2,$r); |
| } |
| |
| function FilledRoundedRectangle($x1,$y1,$x2,$y2,$r=null) { |
| list($x1,$y1) = $this->scale->Translate($x1,$y1); |
| list($x2,$y2) = $this->scale->Translate($x2,$y2); |
| |
| if( $r == null ) |
| $r = 5; |
| elseif( $r > 0 ) |
| $r = $this->scale->TranslateX($r); |
| else |
| $r = -$r; |
| $this->img->FilledRoundedRectangle($x1,$y1,$x2,$y2,$r); |
| } |
| |
| function ShadowRectangle($x1,$y1,$x2,$y2,$fcolor=false,$shadow_width=null,$shadow_color=array(102,102,102)) { |
| list($x1,$y1) = $this->scale->Translate($x1,$y1); |
| list($x2,$y2) = $this->scale->Translate($x2,$y2); |
| if( $shadow_width == null ) |
| $shadow_width=4; |
| else |
| $shadow_width=$this->scale->TranslateX($shadow_width); |
| $this->img->ShadowRectangle($x1,$y1,$x2,$y2,$fcolor,$shadow_width,$shadow_color); |
| } |
| |
| function SetTextAlign($halign,$valign="bottom") { |
| $this->img->SetTextAlign($halign,$valign="bottom"); |
| } |
| |
| function StrokeText($x1,$y1,$txt,$dir=0,$paragraph_align="left") { |
| list($x1,$y1) = $this->scale->Translate($x1,$y1); |
| $this->img->StrokeText($x1,$y1,$txt,$dir,$paragraph_align); |
| } |
| |
| // A rounded rectangle where one of the corner has been moved "into" the |
| // rectangle 'iw' width and 'ih' height. Corners: |
| // 0=Top left, 1=top right, 2=bottom right, 3=bottom left |
| function IndentedRectangle($xt,$yt,$w,$h,$iw=0,$ih=0,$aCorner=3,$aFillColor="",$r=4) { |
| |
| list($xt,$yt) = $this->scale->Translate($xt,$yt); |
| list($w,$h) = $this->scale->Translate($w,$h); |
| list($iw,$ih) = $this->scale->Translate($iw,$ih); |
| |
| $xr = $xt + $w - 0; |
| $yl = $yt + $h - 0; |
| |
| switch( $aCorner ) { |
| case 0: // Upper left |
| |
| // Bottom line, left & right arc |
| $this->img->Line($xt+$r,$yl,$xr-$r,$yl); |
| $this->img->Arc($xt+$r,$yl-$r,$r*2,$r*2,90,180); |
| $this->img->Arc($xr-$r,$yl-$r,$r*2,$r*2,0,90); |
| |
| // Right line, Top right arc |
| $this->img->Line($xr,$yt+$r,$xr,$yl-$r); |
| $this->img->Arc($xr-$r,$yt+$r,$r*2,$r*2,270,360); |
| |
| // Top line, Top left arc |
| $this->img->Line($xt+$iw+$r,$yt,$xr-$r,$yt); |
| $this->img->Arc($xt+$iw+$r,$yt+$r,$r*2,$r*2,180,270); |
| |
| // Left line |
| $this->img->Line($xt,$yt+$ih+$r,$xt,$yl-$r); |
| |
| // Indent horizontal, Lower left arc |
| $this->img->Line($xt+$r,$yt+$ih,$xt+$iw-$r,$yt+$ih); |
| $this->img->Arc($xt+$r,$yt+$ih+$r,$r*2,$r*2,180,270); |
| |
| // Indent vertical, Indent arc |
| $this->img->Line($xt+$iw,$yt+$r,$xt+$iw,$yt+$ih-$r); |
| $this->img->Arc($xt+$iw-$r,$yt+$ih-$r,$r*2,$r*2,0,90); |
| |
| if( $aFillColor != '' ) { |
| $bc = $this->img->current_color_name; |
| $this->img->PushColor($aFillColor); |
| $this->img->FillToBorder($xr-$r,$yl-$r,$bc); |
| $this->img->PopColor(); |
| } |
| |
| break; |
| |
| case 1: // Upper right |
| |
| // Bottom line, left & right arc |
| $this->img->Line($xt+$r,$yl,$xr-$r,$yl); |
| $this->img->Arc($xt+$r,$yl-$r,$r*2,$r*2,90,180); |
| $this->img->Arc($xr-$r,$yl-$r,$r*2,$r*2,0,90); |
| |
| // Left line, Top left arc |
| $this->img->Line($xt,$yt+$r,$xt,$yl-$r); |
| $this->img->Arc($xt+$r,$yt+$r,$r*2,$r*2,180,270); |
| |
| // Top line, Top right arc |
| $this->img->Line($xt+$r,$yt,$xr-$iw-$r,$yt); |
| $this->img->Arc($xr-$iw-$r,$yt+$r,$r*2,$r*2,270,360); |
| |
| // Right line |
| $this->img->Line($xr,$yt+$ih+$r,$xr,$yl-$r); |
| |
| // Indent horizontal, Lower right arc |
| $this->img->Line($xr-$iw+$r,$yt+$ih,$xr-$r,$yt+$ih); |
| $this->img->Arc($xr-$r,$yt+$ih+$r,$r*2,$r*2,270,360); |
| |
| // Indent vertical, Indent arc |
| $this->img->Line($xr-$iw,$yt+$r,$xr-$iw,$yt+$ih-$r); |
| $this->img->Arc($xr-$iw+$r,$yt+$ih-$r,$r*2,$r*2,90,180); |
| |
| if( $aFillColor != '' ) { |
| $bc = $this->img->current_color_name; |
| $this->img->PushColor($aFillColor); |
| $this->img->FillToBorder($xt+$r,$yl-$r,$bc); |
| $this->img->PopColor(); |
| } |
| |
| break; |
| |
| case 2: // Lower right |
| // Top line, Top left & Top right arc |
| $this->img->Line($xt+$r,$yt,$xr-$r,$yt); |
| $this->img->Arc($xt+$r,$yt+$r,$r*2,$r*2,180,270); |
| $this->img->Arc($xr-$r,$yt+$r,$r*2,$r*2,270,360); |
| |
| // Left line, Bottom left arc |
| $this->img->Line($xt,$yt+$r,$xt,$yl-$r); |
| $this->img->Arc($xt+$r,$yl-$r,$r*2,$r*2,90,180); |
| |
| // Bottom line, Bottom right arc |
| $this->img->Line($xt+$r,$yl,$xr-$iw-$r,$yl); |
| $this->img->Arc($xr-$iw-$r,$yl-$r,$r*2,$r*2,0,90); |
| |
| // Right line |
| $this->img->Line($xr,$yt+$r,$xr,$yl-$ih-$r); |
| |
| // Indent horizontal, Lower right arc |
| $this->img->Line($xr-$r,$yl-$ih,$xr-$iw+$r,$yl-$ih); |
| $this->img->Arc($xr-$r,$yl-$ih-$r,$r*2,$r*2,0,90); |
| |
| // Indent vertical, Indent arc |
| $this->img->Line($xr-$iw,$yl-$r,$xr-$iw,$yl-$ih+$r); |
| $this->img->Arc($xr-$iw+$r,$yl-$ih+$r,$r*2,$r*2,180,270); |
| |
| if( $aFillColor != '' ) { |
| $bc = $this->img->current_color_name; |
| $this->img->PushColor($aFillColor); |
| $this->img->FillToBorder($xt+$r,$yt+$r,$bc); |
| $this->img->PopColor(); |
| } |
| |
| break; |
| |
| case 3: // Lower left |
| // Top line, Top left & Top right arc |
| $this->img->Line($xt+$r,$yt,$xr-$r,$yt); |
| $this->img->Arc($xt+$r,$yt+$r,$r*2,$r*2,180,270); |
| $this->img->Arc($xr-$r,$yt+$r,$r*2,$r*2,270,360); |
| |
| // Right line, Bottom right arc |
| $this->img->Line($xr,$yt+$r,$xr,$yl-$r); |
| $this->img->Arc($xr-$r,$yl-$r,$r*2,$r*2,0,90); |
| |
| // Bottom line, Bottom left arc |
| $this->img->Line($xt+$iw+$r,$yl,$xr-$r,$yl); |
| $this->img->Arc($xt+$iw+$r,$yl-$r,$r*2,$r*2,90,180); |
| |
| // Left line |
| $this->img->Line($xt,$yt+$r,$xt,$yl-$ih-$r); |
| |
| // Indent horizontal, Lower left arc |
| $this->img->Line($xt+$r,$yl-$ih,$xt+$iw-$r,$yl-$ih); |
| $this->img->Arc($xt+$r,$yl-$ih-$r,$r*2,$r*2,90,180); |
| |
| // Indent vertical, Indent arc |
| $this->img->Line($xt+$iw,$yl-$ih+$r,$xt+$iw,$yl-$r); |
| $this->img->Arc($xt+$iw-$r,$yl-$ih+$r,$r*2,$r*2,270,360); |
| |
| if( $aFillColor != '' ) { |
| $bc = $this->img->current_color_name; |
| $this->img->PushColor($aFillColor); |
| $this->img->FillToBorder($xr-$r,$yt+$r,$bc); |
| $this->img->PopColor(); |
| } |
| |
| break; |
| } |
| } |
| } |
| |
| |
| //=================================================== |
| // CLASS RectangleText |
| // Description: Draws a text paragraph inside a |
| // rounded, possible filled, rectangle. |
| //=================================================== |
| class CanvasRectangleText { |
| var $ix,$iy,$iw,$ih,$ir=4; |
| var $iTxt,$iColor='black',$iFillColor='',$iFontColor='black'; |
| var $iParaAlign='center'; |
| var $iAutoBoxMargin=5; |
| var $iShadowWidth=3,$iShadowColor=''; |
| |
| function CanvasRectangleText($aTxt='',$xl=0,$yt=0,$w=0,$h=0) { |
| $this->iTxt = new Text($aTxt); |
| $this->ix = $xl; |
| $this->iy = $yt; |
| $this->iw = $w; |
| $this->ih = $h; |
| } |
| |
| function SetShadow($aColor='gray',$aWidth=3) { |
| $this->iShadowColor = $aColor; |
| $this->iShadowWidth = $aWidth; |
| } |
| |
| function SetFont($FontFam,$aFontStyle,$aFontSize=12) { |
| $this->iTxt->SetFont($FontFam,$aFontStyle,$aFontSize); |
| } |
| |
| function SetTxt($aTxt) { |
| $this->iTxt->Set($aTxt); |
| } |
| |
| function ParagraphAlign($aParaAlign) { |
| $this->iParaAlign = $aParaAlign; |
| } |
| |
| function SetFillColor($aFillColor) { |
| $this->iFillColor = $aFillColor; |
| } |
| |
| function SetAutoMargin($aMargin) { |
| $this->iAutoBoxMargin=$aMargin; |
| } |
| |
| function SetColor($aColor) { |
| $this->iColor = $aColor; |
| } |
| |
| function SetFontColor($aColor) { |
| $this->iFontColor = $aColor; |
| } |
| |
| function SetPos($xl=0,$yt=0,$w=0,$h=0) { |
| $this->ix = $xl; |
| $this->iy = $yt; |
| $this->iw = $w; |
| $this->ih = $h; |
| } |
| |
| function Pos($xl=0,$yt=0,$w=0,$h=0) { |
| $this->ix = $xl; |
| $this->iy = $yt; |
| $this->iw = $w; |
| $this->ih = $h; |
| } |
| |
| function Set($aTxt,$xl,$yt,$w=0,$h=0) { |
| $this->iTxt->Set($aTxt); |
| $this->ix = $xl; |
| $this->iy = $yt; |
| $this->iw = $w; |
| $this->ih = $h; |
| } |
| |
| function SetCornerRadius($aRad=5) { |
| $this->ir = $aRad; |
| } |
| |
| function Stroke($aImg,$scale) { |
| |
| // If coordinates are specifed as negative this means we should |
| // treat them as abolsute (pixels) coordinates |
| if( $this->ix > 0 ) { |
| $this->ix = $scale->TranslateX($this->ix) ; |
| } |
| else { |
| $this->ix = -$this->ix; |
| } |
| |
| if( $this->iy > 0 ) { |
| $this->iy = $scale->TranslateY($this->iy) ; |
| } |
| else { |
| $this->iy = -$this->iy; |
| } |
| |
| list($this->iw,$this->ih) = $scale->Translate($this->iw,$this->ih) ; |
| |
| if( $this->iw == 0 ) |
| $this->iw = round($this->iTxt->GetWidth($aImg) + $this->iAutoBoxMargin); |
| if( $this->ih == 0 ) { |
| $this->ih = round($this->iTxt->GetTextHeight($aImg) + $this->iAutoBoxMargin); |
| } |
| |
| if( $this->iShadowColor != '' ) { |
| $aImg->PushColor($this->iShadowColor); |
| $aImg->FilledRoundedRectangle($this->ix+$this->iShadowWidth, |
| $this->iy+$this->iShadowWidth, |
| $this->ix+$this->iw-1+$this->iShadowWidth, |
| $this->iy+$this->ih-1+$this->iShadowWidth, |
| $this->ir); |
| $aImg->PopColor(); |
| } |
| |
| if( $this->iFillColor != '' ) { |
| $aImg->PushColor($this->iFillColor); |
| $aImg->FilledRoundedRectangle($this->ix,$this->iy, |
| $this->ix+$this->iw-1, |
| $this->iy+$this->ih-1, |
| $this->ir); |
| $aImg->PopColor(); |
| } |
| |
| if( $this->iColor != '' ) { |
| $aImg->PushColor($this->iColor); |
| $aImg->RoundedRectangle($this->ix,$this->iy, |
| $this->ix+$this->iw-1, |
| $this->iy+$this->ih-1, |
| $this->ir); |
| $aImg->PopColor(); |
| } |
| |
| $this->iTxt->Align('center','center'); |
| $this->iTxt->ParagraphAlign($this->iParaAlign); |
| $this->iTxt->SetColor($this->iFontColor); |
| $this->iTxt->Stroke($aImg, $this->ix+$this->iw/2, $this->iy+$this->ih/2); |
| |
| return array($this->iw, $this->ih); |
| |
| } |
| |
| } |
| |
| |
| ?> |