Class CanvasRectangleText
(Defined in: jpgraph_canvtools.php : 375)

CanvasRectangleText

ParagraphAlign()
Pos()
Set()
SetAutoMargin()
SetColor()
SetCornerRadius()
SetFillColor()
SetFont()
SetFontColor()
SetPos()
SetShadow()
SetTxt()
Stroke()
__construct()

Class usage and Overview
YOu can use this class to convieniently draw a text on canvas. The text may have multiple lines wher each line is separated by a "\n" (newline) character.

The text may also be enclosed in a rounded (possibly filled) rectangle.

See also related classes:
CanvasGraph and CanvasScale

Class Methods

CanvasRectangleText ::
ParagraphAlign($aParaAlign)
Specify paragraph alignment for the text

Argument | Default | Description
--- | --- | ---
$aParaAlign |  | Alignment

Description:
Specify paragraph alignment for the text. Alignments can be:

- "left"
- "center"
- "right"

Example:

$g = new CanvasGraph(550,450);
$scale = new CanvasScale($g);
$scale->Set(0,27,0,53);
//
$t = new CanvasRectangleText();
$t->SetFillColor('lightgreen');
$t->SetFontColor('navy');
$t->SetFont(FF_ARIAL,FS_NORMAL,16);
$t->ParagraphAlign('center');
$t->Set("First line\nSecond line",0.5,19,26,32);
$t->Stroke($g->img,$scale);

CanvasRectangleText ::
Pos($xl, $yt, $w, $h)
Specify position for text

Argument | Default | Description
--- | --- | ---
$xl | 0 | Top left X
$yt | 0 | Top left Y
$w | 0 | Width
$h | 0 | Height

Description:
Set position for text. All coordinates will be translaed according to the current scale used.

CanvasRectangleText ::
Set($aTxt, $xl, $yt, $w, $h)
Specify the text and position

Argument | Default | Description
--- | --- | ---
$aTxt |  | Text
$xl |  | Top left X
$yt |  | Top left Y
$w | 0 | Width
$h | 0 | Height

Description:
Specify the text and position. All coordinates will be translated using the specified scale when stroked.

Example:

$t->SetShadow('');
$t->SetFont(FF_ARIAL,FS_BOLD,18);
$t->Set('Family',1,1,8);
$t->Stroke($g->img,$scale);

CanvasRectangleText ::
SetAutoMargin($aMargin)
Specify auto margin when no specific size is specified

Argument | Default | Description
--- | --- | ---
$aMargin |  | Margin in pixels

Description:
Specify auto margin when no specific size is specified. This margin is used to add extra space around the text and the border around the text.

CanvasRectangleText ::
SetColor($aColor)
Set border color for rectangle

Argument | Default | Description
--- | --- | ---
$aColor |  | Border color

Description:
Set border color for rectangle
See also:

- CanvasRectangleText::SetFontColor()
- CanvasRectangleText::SetFillColor()

Example:

$t->SetColor('navy');

CanvasRectangleText ::
SetCornerRadius($aRad)
Set radius for corners

Argument | Default | Description
--- | --- | ---
$aRad | 5 | Radius in pixels

Description:
Specify the radius for the rounded corners. Specifying the value as 0 will give normal square corners.

Example:

$t->SetCornerRadius(15);

CanvasRectangleText ::
SetFillColor($aFillColor)
Specify fill color for rectangle

Argument | Default | Description
--- | --- | ---
$aFillColor |  | Color

Description:
Specify fill color for rectangle

Example:

$t->SetFillColor('#12A73C');

CanvasRectangleText ::
SetFont($FontFam, $aFontStyle, $aFontSize)
Specify font

Argument | Default | Description
--- | --- | ---
$FontFam |  | Font family
$aFontStyle |  | Font style
$aFontSize | 12 | Font size

Description:
Specify font

Example:

$t->SetFont(FF_ARIAL,FS_BOLD,24);

CanvasRectangleText ::
SetFontColor($aColor)
Specify text (font) color

Argument | Default | Description
--- | --- | ---
$aColor |  | Color specification

Description:
Set color for text. Use SetColor() to specify border colro and SetFillColor() to set fill color.
See also:

- CanvasRectangleText::SetColor()
- CanvasRectangleText::SetFillColor()

Example:

$t->SetFontCOlor('black')

CanvasRectangleText ::
SetPos($xl, $yt, $w, $h)
Specify position

Argument | Default | Description
--- | --- | ---
$xl | 0 | Top left X
$yt | 0 | Top left Y
$w | 0 | Width
$h | 0 | Height

Description:
Specify position. All coordinates will be transalted with the specified scale when stroked.

CanvasRectangleText ::
SetShadow($aColor, $aWidth)
Add a drop shadow

Argument | Default | Description
--- | --- | ---
$aColor | 'gray' | Color of shadow
$aWidth | 3 | Width of shadow

Description:
Add a drop shadow to the rounded reactangle surranding the text

Example:

$t->SetShadow(); // Use default values

CanvasRectangleText ::
SetTxt($aTxt)
Specify text string

Argument | Default | Description
--- | --- | ---
$aTxt |  | Textt

Description:
Set text string to be displayed. The text string may have multiple lines separated by a newline character "\n"

Example:

$t->Set("This is a text!");

CanvasRectangleText ::
Stroke($aImg, $scale)
Stroke text to canvas

Argument | Default | Description
--- | --- | ---
$aImg |  | Image context
$scale |  | Scale

Description:
Stroke text to canvas
See also:

- CanvasScale::__construct()

Example:

$t->Stroke($graph->img,$scale);

CanvasRectangleText ::
__construct($aTxt, $xl, $yt, $w, $h)
Draws a text paragraph inside a rounded, possibly filled, rectangle

Argument | Default | Description
--- | --- | ---
$aTxt | '' | Text
$xl | 0 | Top left X
$yt | 0 | Top left Y
$w | 0 | Width
$h | 0 | Height

Description:
Draws a text paragraph inside a rounded, possible filled, rectangle.

Example:

$t = new CanvasRectangleText();
$t->SetFillColor('lightgreen');
$t->SetFontColor('navy');
$t->SetFont(FF_ARIAL,FS_NORMAL,16);
$t->Set("\n\n\n\n\n\n\n\n\n\n\nTTF Fonts",0.5,19,26,32);
$t->Stroke($g->img,$scale);