diff options
| author | xue <> | 2006-03-18 01:08:33 +0000 |
|---|---|---|
| committer | xue <> | 2006-03-18 01:08:33 +0000 |
| commit | e317d0289a304d0bb7ce7499834458281bf1ca63 (patch) | |
| tree | 5e962d820a246630904c736c03d0eca106f94196 /framework/Web/UI/WebControls/TImageMap.php | |
| parent | 95764689f7681d5905c199727dd456671f2fd1b6 (diff) | |
added TImageMap.
Diffstat (limited to 'framework/Web/UI/WebControls/TImageMap.php')
| -rw-r--r-- | framework/Web/UI/WebControls/TImageMap.php | 726 |
1 files changed, 726 insertions, 0 deletions
diff --git a/framework/Web/UI/WebControls/TImageMap.php b/framework/Web/UI/WebControls/TImageMap.php new file mode 100644 index 00000000..9444df46 --- /dev/null +++ b/framework/Web/UI/WebControls/TImageMap.php @@ -0,0 +1,726 @@ +<?php
+/**
+ * TImageMap and related class file.
+ *
+ * @author Qiang Xue <qiang.xue@gmail.com>
+ * @link http://www.pradosoft.com/
+ * @copyright Copyright © 2005 PradoSoft
+ * @license http://www.pradosoft.com/license/
+ * @version $Revision: $ $Date: $
+ * @package System.Web.UI.WebControls
+ */
+
+/**
+ * Includes TImage class file
+ */
+Prado::using('System.Web.UI.WebControls.TImage');
+
+/**
+ * TImageMap class
+ *
+ * TImageMap represents an image on a page. Hotspot regions can be defined
+ * within the image. Depending on the {@link setHotSpotMode HotSpotMode},
+ * clicking on the hotspots may trigger a postback or navigate to a specified
+ * URL. The hotspots defined may be accessed via {@link getHotSpots HotSpots}.
+ * Each hotspot is described as a {@link THotSpot}, which can be a circle,
+ * rectangle, polygon, etc. To add hotspot in a template, use the following,
+ * <code>
+ * <com:TImageMap>
+ * <com:TCircleHotSpot ... />
+ * <com:TRectangleHotSpot ... />
+ * <com:TPolygonHotSpot ... />
+ * </com:TImageMap>
+ * </code>
+ *
+ * @author Qiang Xue <qiang.xue@gmail.com>
+ * @version $Revision: $ $Date: $
+ * @package System.Web.UI.WebControls
+ * @since 3.0
+ */
+class TImageMap extends TImage implements IPostBackEventHandler
+{
+ const MAP_NAME_PREFIX='ImageMap';
+
+ /**
+ * Processes an object that is created during parsing template.
+ * This method adds {@link THotSpot} objects into the hotspot collection
+ * of the imagemap.
+ * @param string|TComponent text string or component parsed and instantiated in template
+ */
+ public function addParsedObject($object)
+ {
+ if($object instanceof THotSpot)
+ $this->getHotSpots()->add($object);
+ }
+
+ /**
+ * Adds attribute name-value pairs to renderer.
+ * This overrides the parent implementation with additional imagemap specific attributes.
+ * @param THtmlWriter the writer used for the rendering purpose
+ */
+ protected function addAttributesToRender($writer)
+ {
+ parent::addAttributesToRender($writer);
+ if($this->getHotSpots()->getCount()>0)
+ {
+ $writer->addAttribute('usemap','#'.self::MAP_NAME_PREFIX.$this->getClientID());
+ $writer->addAttribute('id',$this->getUniqueID());
+ }
+ if($this->getEnabled() && !$this->getEnabled(true))
+ $writer->addAttribute('disabled','disabled');
+ }
+
+ /**
+ * Renders this imagemap.
+ * @param THtmlWriter
+ */
+ public function render($writer)
+ {
+ parent::render($writer);
+
+ $hotspots=$this->getHotSpots();
+
+ if($hotspots->getCount()>0)
+ {
+ $clientID=$this->getClientID();
+ $cs=$this->getPage()->getClientScript();
+ $writer->writeLine();
+ $writer->addAttribute('name',self::MAP_NAME_PREFIX.$clientID);
+ $writer->renderBeginTag('map');
+ $writer->writeLine();
+ if(($mode=$this->getHotSpotMode())==='NotSet')
+ $mode='Navigate';
+ $target=$this->getTarget();
+ $i=0;
+ $options['EventTarget'] = $this->getUniqueID();
+ $options['StopEvent'] = true;
+ foreach($hotspots as $hotspot)
+ {
+ if($hotspot->getHotSpotMode()==='NotSet')
+ $hotspot->setHotSpotMode($mode);
+ if($target!=='' && $hotspot->getTarget()==='')
+ $hotspot->setTarget($target);
+ if($hotspot->getHotSpotMode()==='PostBack')
+ {
+ $id=$clientID.'_'.$i;
+ $writer->addAttribute('id',$id);
+ $writer->addAttribute('href','#'.$id); //create unique no-op url references
+ $options['ID']=$id;
+ $options['EventParameter']="$i";
+ $options['CausesValidation']=$hotspot->getCausesValidation();
+ $options['ValidationGroup']=$hotspot->getValidationGroup();
+ $cs->registerPostBackControl('Prado.WebUI.TImageMap',$options);
+ }
+ $hotspot->render($writer);
+ $writer->writeLine();
+ $i++;
+ }
+ $writer->renderEndTag();
+ }
+ }
+
+ /**
+ * Raises the postback event.
+ * This method is required by {@link IPostBackEventHandler} interface.
+ * This method is mainly used by framework and control developers.
+ * @param TEventParameter the event parameter
+ */
+ public function raisePostBackEvent($param)
+ {
+ $postBackValue=null;
+ if($param!=='')
+ {
+ $index=TPropertyValue::ensureInteger($param);
+ $hotspots=$this->getHotSpots();
+ if($index>=0 && $index<$hotspots->getCount())
+ {
+ $hotspot=$hotspots->itemAt($index);
+ if(($mode=$hotspot->getHotSpotMode())==='NotSet')
+ $mode=$this->getHotSpotMode();
+ if($mode==='PostBack')
+ {
+ $postBackValue=$hotspot->getPostBackValue();
+ if($hotspot->getCausesValidation())
+ $this->getPage()->validate($hotspot->getValidationGroup());
+ }
+ }
+ }
+ if($postBackValue!==null)
+ $this->onClick(new TImageMapEventParameter($postBackValue));
+ }
+
+ /**
+ * @return string the behavior of hotspot regions in this imagemap when they are clicked. Defaults to 'NotSet'.
+ */
+ public function getHotSpotMode()
+ {
+ return $this->getViewState('HotSpotMode','NotSet');
+ }
+
+ /**
+ * Sets the behavior of hotspot regions in this imagemap when they are clicked.
+ * If an individual hotspot has a mode other than 'NotSet', the mode set in this
+ * imagemap will be ignored. By default, 'NotSet' is equivalent to 'Navigate'.
+ * @param string the behavior of hotspot regions in this imagemap when they are clicked.
+ * Valid values include 'NotSet','Navigate','PostBack','Inactive'.
+ */
+ public function setHotSpotMode($value)
+ {
+ $this->setViewState('HotSpotMode',TPropertyValue::ensureEnum($value,'NotSet','Navigate','PostBack','Inactive'),'NotSet');
+ }
+
+ /**
+ * @return THotSpotCollection collection of hotspots defined in this imagemap.
+ */
+ public function getHotSpots()
+ {
+ if(($hotspots=$this->getViewState('HotSpots',null))===null)
+ {
+ $hotspots=new THotSpotCollection;
+ $this->setViewState('HotSpots',$hotspots);
+ }
+ return $hotspots;
+ }
+
+ /**
+ * @return string the target window or frame to display the new page when a hotspot region is clicked within the imagemap. Defaults to ''.
+ */
+ public function getTarget()
+ {
+ return $this->getViewState('Target','');
+ }
+
+ /**
+ * @param string the target window or frame to display the new page when a hotspot region is clicked within the imagemap.
+ */
+ public function setTarget($value)
+ {
+ $this->setViewState('Target',TPropertyValue::ensureString($value),'');
+ }
+
+ /**
+ * Raises <b>OnClick</b> event.
+ * This method is invoked when a hotspot region is clicked within the imagemap.
+ * If you override this method, be sure to call the parent implementation
+ * so that the event handler can be invoked.
+ * @param TImageMapEventParameter event parameter to be passed to the event handlers
+ */
+ public function onClick($param)
+ {
+ $this->raiseEvent('OnClick',$this,$param);
+ }
+}
+
+/**
+ * TImageMapEventParameter class.
+ *
+ * TImageMapEventParameter represents a postback event parameter
+ * when a hotspot is clicked and posts back in a {@link TImageMap}.
+ * To retrieve the post back value associated with the hotspot being clicked,
+ * access {@link getPostBackValue PostBackValue}.
+ *
+ * @author Qiang Xue <qiang.xue@gmail.com>
+ * @version $Revision: $ $Date: $
+ * @package System.Web.UI.WebControls
+ * @since 3.0
+ */
+class TImageMapEventParameter extends TEventParameter
+{
+ private $_postBackValue;
+
+ /**
+ * Constructor.
+ * @param string post back value associated with the hotspot clicked
+ */
+ public function __construct($postBackValue)
+ {
+ $this->_postBackValue=$postBackValue;
+ }
+
+ /**
+ * @return string post back value associated with the hotspot clicked
+ */
+ public function getPostBackValue()
+ {
+ return $this->_postBackValue;
+ }
+}
+
+/**
+ * THotSpotCollection class.
+ *
+ * THotSpotCollection represents a collection of hotspots in an imagemap.
+ *
+ * @author Qiang Xue <qiang.xue@gmail.com>
+ * @version $Revision: $ $Date: $
+ * @package System.Web.UI.WebControls
+ * @since 3.0
+ */
+class THotSpotCollection extends TList
+{
+ /**
+ * Inserts an item at the specified position.
+ * This overrides the parent implementation by inserting only {@link THotSpot}.
+ * @param integer the speicified position.
+ * @param mixed new item
+ * @throws TInvalidDataTypeException if the item to be inserted is not a THotSpot.
+ */
+ public function insertAt($index,$item)
+ {
+ if($item instanceof THotSpot)
+ parent::insertAt($index,$item);
+ else
+ throw new TInvalidDataTypeException('hotspotcollection_hotspot_required');
+ }
+}
+
+
+/**
+ * THotSpot class.
+ *
+ * THotSpot implements the basic functionality common to all hot spot shapes.
+ * Derived classes include {@link TCircleHotSpot}, {@link TPolygonHotSpot}
+ * and {@link TRectangleHotSpot}.
+ *
+ * @author Qiang Xue <qiang.xue@gmail.com>
+ * @version $Revision: $ $Date: $
+ * @package System.Web.UI.WebControls
+ * @since 3.0
+ */
+abstract class THotSpot extends TComponent
+{
+ private $_viewState=array();
+
+ /**
+ * Returns a viewstate value.
+ *
+ * This function is very useful in defining getter functions for component properties
+ * that must be kept in viewstate.
+ * @param string the name of the viewstate value to be returned
+ * @param mixed the default value. If $key is not found in viewstate, $defaultValue will be returned
+ * @return mixed the viewstate value corresponding to $key
+ */
+ protected function getViewState($key,$defaultValue=null)
+ {
+ return isset($this->_viewState[$key])?$this->_viewState[$key]:$defaultValue;
+ }
+
+ /**
+ * Sets a viewstate value.
+ *
+ * This function is very useful in defining setter functions for control properties
+ * that must be kept in viewstate.
+ * Make sure that the viewstate value must be serializable and unserializable.
+ * @param string the name of the viewstate value
+ * @param mixed the viewstate value to be set
+ * @param mixed default value. If $value===$defaultValue, the item will be cleared from the viewstate.
+ */
+ protected function setViewState($key,$value,$defaultValue=null)
+ {
+ if($value===$defaultValue)
+ unset($this->_viewState[$key]);
+ else
+ $this->_viewState[$key]=$value;
+ }
+
+ /**
+ * @return string shape of the hotspot, can be 'circle', 'rect', 'poly', etc.
+ */
+ abstract public function getShape();
+ /**
+ * @return string coordinates defining the hotspot shape.
+ */
+ abstract public function getCoordinates();
+
+ /**
+ * @return string the access key that allows you to quickly navigate to the HotSpot region. Defaults to ''.
+ */
+ public function getAccessKey()
+ {
+ return $this->getViewState('AccessKey','');
+ }
+
+ /**
+ * @param string the access key that allows you to quickly navigate to the HotSpot region.
+ */
+ public function setAccessKey($value)
+ {
+ $this->setViewState('AccessKey',TPropertyValue::ensureString($value),'');
+ }
+
+ /**
+ * @return string the alternate text to display for a HotSpot object. Defaults to ''.
+ */
+ public function getAlternateText()
+ {
+ return $this->getViewState('AlternateText','');
+ }
+
+ /**
+ * @param string the alternate text to display for a HotSpot object.
+ */
+ public function setAlternateText($value)
+ {
+ $this->setViewState('AlternateText',TPropertyValue::ensureString($value),'');
+ }
+
+ /**
+ * @return string the behavior of a HotSpot object when it is clicked. Defaults to 'NotSet'.
+ */
+ public function getHotSpotMode()
+ {
+ return $this->getViewState('HotSpotMode','NotSet');
+ }
+
+ /**
+ * @param string the behavior of a HotSpot object when it is clicked.
+ * Valid values include 'NotSet','Navigate','PostBack','Inactive'.
+ */
+ public function setHotSpotMode($value)
+ {
+ $this->setViewState('HotSpotMode',TPropertyValue::ensureEnum($value,'NotSet','Navigate','PostBack','Inactive'),'NotSet');
+ }
+
+ /**
+ * @return string the URL to navigate to when a HotSpot object is clicked. Defaults to ''.
+ */
+ public function getNavigateUrl()
+ {
+ return $this->getViewState('NavigateUrl','');
+ }
+
+ /**
+ * @param string the URL to navigate to when a HotSpot object is clicked.
+ */
+ public function setNavigateUrl($value)
+ {
+ $this->setViewState('NavigateUrl',TPropertyValue::ensureString($value),'');
+ }
+
+ /**
+ * @return string a value that is post back when the HotSpot is clicked. Defaults to ''.
+ */
+ public function getPostBackValue()
+ {
+ return $this->getViewState('PostBackValue','');
+ }
+
+ /**
+ * @param string a value that is post back when the HotSpot is clicked.
+ */
+ public function setPostBackValue($value)
+ {
+ $this->setViewState('PostBackValue',TPropertyValue::ensureString($value),'');
+ }
+
+ /**
+ * @return integer the tab index of the HotSpot region. Defaults to 0.
+ */
+ public function getTabIndex()
+ {
+ return $this->getViewState('TabIndex',0);
+ }
+
+ /**
+ * @param integer the tab index of the HotSpot region.
+ */
+ public function setTabIndex($value)
+ {
+ $this->setViewState('TabIndex',TPropertyValue::ensureInteger($value),0);
+ }
+
+ /**
+ * @return boolean whether postback event trigger by this hotspot will cause input validation, default is true
+ */
+ public function getCausesValidation()
+ {
+ return $this->getViewState('CausesValidation',true);
+ }
+
+ /**
+ * @param boolean whether postback event trigger by this hotspot will cause input validation
+ */
+ public function setCausesValidation($value)
+ {
+ $this->setViewState('CausesValidation',TPropertyValue::ensureBoolean($value),true);
+ }
+
+ /**
+ * @return string the group of validators which the hotspot causes validation upon postback
+ */
+ public function getValidationGroup()
+ {
+ return $this->getViewState('ValidationGroup','');
+ }
+
+ /**
+ * @param string the group of validators which the hotspot causes validation upon postback
+ */
+ public function setValidationGroup($value)
+ {
+ $this->setViewState('ValidationGroup',$value,'');
+ }
+
+ /**
+ * @return string the target window or frame to display the new page when the HotSpot region
+ * is clicked. Defaults to ''.
+ */
+ public function getTarget()
+ {
+ return $this->getViewState('Target','');
+ }
+
+ /**
+ * @param string the target window or frame to display the new page when the HotSpot region
+ * is clicked.
+ */
+ public function setTarget($value)
+ {
+ $this->setViewState('Target',TPropertyValue::ensureString($value),'');
+ }
+
+ /**
+ * Renders this hotspot.
+ * @param THtmlWriter
+ */
+ public function render($writer)
+ {
+ $writer->addAttribute('shape',$this->getShape());
+ $writer->addAttribute('coords',$this->getCoordinates());
+ if(($mode=$this->getHotSpotMode())==='NotSet')
+ $mode='Navigate';
+ if($mode==='Navigate')
+ {
+ $writer->addAttribute('href',$this->getNavigateUrl());
+ if(($target=$this->getTarget())!=='')
+ $writer->addAttribute('target',$target);
+ }
+ else if($mode==='Inactive')
+ $writer->addAttribute('nohref','true');
+ $text=$this->getAlternateText();
+ $writer->addAttribute('title',$text);
+ $writer->addAttribute('alt',$text);
+ if(($accessKey=$this->getAccessKey())!=='')
+ $writer->addAttribute('accesskey',$accessKey);
+ if(($tabIndex=$this->getTabIndex())!==0)
+ $writer->addAttribute('tabindex',"$tabIndex");
+ $writer->renderBeginTag('area');
+ $writer->renderEndTag();
+ }
+}
+
+/**
+ * Class TCircleHotSpot.
+ *
+ * TCircleHotSpot defines a circular hot spot region in a {@link TImageMap}
+ * control.
+ *
+ * @author Qiang Xue <qiang.xue@gmail.com>
+ * @version $Revision: $ $Date: $
+ * @package System.Web.UI.WebControls
+ * @since 3.0
+ */
+class TCircleHotSpot extends THotSpot
+{
+ /**
+ * @return string shape of this hotspot.
+ */
+ public function getShape()
+ {
+ return 'circle';
+ }
+
+ /**
+ * @return string coordinates defining this hotspot shape
+ */
+ public function getCoordinates()
+ {
+ return $this->getX().','.$this->getY().','.$this->getRadius();
+ }
+
+ /**
+ * @return integer radius of the circular HotSpot region. Defaults to 0.
+ */
+ public function getRadius()
+ {
+ return $this->getViewState('Radius',0);
+ }
+
+ /**
+ * @param integer radius of the circular HotSpot region.
+ */
+ public function setRadius($value)
+ {
+ $this->setViewState('Radius',TPropertyValue::ensureInteger($value),0);
+ }
+
+ /**
+ * @return integer the X coordinate of the center of the circular HotSpot region. Defaults to 0.
+ */
+ public function getX()
+ {
+ return $this->getViewState('X',0);
+ }
+
+ /**
+ * @param integer the X coordinate of the center of the circular HotSpot region.
+ */
+ public function setX($value)
+ {
+ $this->setViewState('X',TPropertyValue::ensureInteger($value),0);
+ }
+
+ /**
+ * @return integer the Y coordinate of the center of the circular HotSpot region. Defaults to 0.
+ */
+ public function getY()
+ {
+ return $this->getViewState('Y',0);
+ }
+
+ /**
+ * @param integer the Y coordinate of the center of the circular HotSpot region.
+ */
+ public function setY($value)
+ {
+ $this->setViewState('Y',TPropertyValue::ensureInteger($value),0);
+ }
+}
+
+/**
+ * Class TRectangleHotSpot.
+ *
+ * TRectangleHotSpot defines a rectangle hot spot region in a {@link
+ * TImageMap} control.
+ *
+ * @author Qiang Xue <qiang.xue@gmail.com>
+ * @version $Revision: $ $Date: $
+ * @package System.Web.UI.WebControls
+ * @since 3.0
+ */
+class TRectangleHotSpot extends THotSpot
+{
+ /**
+ * @return string shape of this hotspot.
+ */
+ public function getShape()
+ {
+ return 'rect';
+ }
+
+ /**
+ * @return string coordinates defining this hotspot shape
+ */
+ public function getCoordinates()
+ {
+ return $this->getLeft().','.$this->getTop().','.$this->getRight().','.$this->getBottom();
+ }
+
+ /**
+ * @return integer the Y coordinate of the bottom side of the rectangle HotSpot region. Defaults to 0.
+ */
+ public function getBottom()
+ {
+ return $this->getViewState('Bottom',0);
+ }
+
+ /**
+ * @param integer the Y coordinate of the bottom side of the rectangle HotSpot region.
+ */
+ public function setBottom($value)
+ {
+ $this->setViewState('Bottom',TPropertyValue::ensureInteger($value),0);
+ }
+
+ /**
+ * @return integer the X coordinate of the right side of the rectangle HotSpot region. Defaults to 0.
+ */
+ public function getLeft()
+ {
+ return $this->getViewState('Left',0);
+ }
+
+ /**
+ * @param integer the X coordinate of the right side of the rectangle HotSpot region.
+ */
+ public function setLeft($value)
+ {
+ $this->setViewState('Left',TPropertyValue::ensureInteger($value),0);
+ }
+
+ /**
+ * @return integer the X coordinate of the right side of the rectangle HotSpot region. Defaults to 0.
+ */
+ public function getRight()
+ {
+ return $this->getViewState('Right',0);
+ }
+
+ /**
+ * @param integer the X coordinate of the right side of the rectangle HotSpot region.
+ */
+ public function setRight($value)
+ {
+ $this->setViewState('Right',TPropertyValue::ensureInteger($value),0);
+ }
+
+ /**
+ * @return integer the Y coordinate of the top side of the rectangle HotSpot region. Defaults to 0.
+ */
+ public function getTop()
+ {
+ return $this->getViewState('Top',0);
+ }
+
+ /**
+ * @param integer the Y coordinate of the top side of the rectangle HotSpot region.
+ */
+ public function setTop($value)
+ {
+ $this->setViewState('Top',TPropertyValue::ensureInteger($value),0);
+ }
+}
+
+/**
+ * Class TPolygonHotSpot.
+ *
+ * TPolygonHotSpot defines a polygon hot spot region in a {@link
+ * TImageMap} control.
+ *
+ * @author Qiang Xue <qiang.xue@gmail.com>
+ * @version $Revision: $ $Date: $
+ * @package System.Web.UI.WebControls
+ * @since 3.0
+ */
+class TPolygonHotSpot extends THotSpot
+{
+ /**
+ * @return string shape of this hotspot.
+ */
+ public function getShape()
+ {
+ return 'poly';
+ }
+
+ /**
+ * @return string coordinates of the vertices defining the polygon.
+ * Coordinates are concatenated together with comma ','. Each pair
+ * represents (x,y) of a vertex.
+ */
+ public function getCoordinates()
+ {
+ return $this->getViewState('Coordinates','');
+ }
+
+ /**
+ * @param string coordinates of the vertices defining the polygon.
+ * Coordinates are concatenated together with comma ','. Each pair
+ * represents (x,y) of a vertex.
+ */
+ public function setCoordinates($value)
+ {
+ $this->setViewState('Coordinates',$value,'');
+ }
+}
+
+?>
\ No newline at end of file |