[Mapbender-commits] r1013 - trunk/mapbender/http/javascripts

[svn_mapbender at osgeo.org]

Author: nimix
Date: 2007-01-17 10:56:40 -0500 (Wed, 17 Jan 2007)
New Revision: 1013

Modified:
   trunk/mapbender/http/javascripts/mod_dragMapSize.php
Log:
drag over other iframes and check for negative size

Modified: trunk/mapbender/http/javascripts/mod_dragMapSize.php
===================================================================
--- trunk/mapbender/http/javascripts/mod_dragMapSize.php	2007-01-16 13:02:50 UTC (rev 1012)
+++ trunk/mapbender/http/javascripts/mod_dragMapSize.php	2007-01-17 15:56:40 UTC (rev 1013)
@@ -57,12 +57,28 @@
 	if(mod_dagMapSize_active == false){
 		document.onmouseup = mod_dragMapSize_up;
 		document.onmousemove = mod_dragMapSize_drag;
+		
 		mb_getMousePos(e);
-		mb_start_x=clickX;
-		mb_start_y=clickY;
+		mb_start_x = clickX;
+		mb_start_y = clickY;
 		mb_end_x = clickX;
 		mb_end_y = clickY;
 		mod_dagMapSize_active = true;
+
+		//create a div that catches all mouse interactions
+		var dragElement = document.getElementById("dragMapSize");
+		var mouseCatcher = dragElement.parentNode.appendChild(document.createElement('div'));
+		mouseCatcher.setAttribute("id", "dragMapSize_helper");
+		mouseCatcher.style.position = "absolute";
+		mouseCatcher.style.cursor = "move";
+		mouseCatcher.style.width = 500;
+		mouseCatcher.style.height = 500;
+		mouseCatcher.style.zIndex = 160;
+		if(top.ie)
+			mouseCatcher.style.background = "url(/../img/tranparent.gif)"; 
+		mouseCatcher.style.left=clickX-250;
+		mouseCatcher.style.top=clickY-250;
+		
 		return false;
 	}
 }
@@ -70,6 +86,10 @@
 function mod_dragMapSize_up(e){	
 	document.onmouseup = null;
 	document.onmousemove = null;
+	
+	var mouseCatcher = document.getElementById("dragMapSize_helper");
+	mouseCatcher.parentNode.removeChild(mouseCatcher);
+	
 	mod_dagMapSize_active = false;
 	mb_getMousePos(e);
 	mb_end_x = clickX;
@@ -77,6 +97,16 @@
 	var ind = getMapObjIndexByName(mod_dragMapSize_target);
 	var dif_x = (parseFloat(mb_end_x) - parseFloat(mb_start_x));
 	var dif_y = (parseFloat(mb_end_y) - parseFloat(mb_start_y));
+	
+	if(parseFloat(mb_mapObj[ind].width) + parseFloat(dif_x)<0 ||
+		parseFloat(mb_mapObj[ind].height) + parseFloat(dif_y)<0)
+	{
+		var dif_x = mb_start_x - (parseInt(document.getElementById('dragMapSize').style.width) / 2);
+		var dif_y = mb_start_y - (parseInt(document.getElementById('dragMapSize').style.height) / 2);
+		mb_arrangeElement('', "dragMapSize", dif_x, dif_y);
+		return;
+	}
+	
 	var pos =  makeClickPos2RealWorldPos(mod_dragMapSize_target, (parseFloat(mb_mapObj[ind].width) + parseFloat(dif_x)), (parseFloat(mb_mapObj[ind].height) + parseFloat(dif_y)));
 	mb_mapObj[ind].width = parseFloat(mb_mapObj[ind].width) + parseFloat(dif_x);
 	mb_mapObj[ind].height = parseFloat(mb_mapObj[ind].height) + parseFloat(dif_y);
@@ -91,11 +121,12 @@
 
 function mod_dragMapSize_drag(e){
 	if(mod_dagMapSize_active){
+	  	if (!e)
+    		e = window.event;	
 		mb_getMousePos(e);
-		mb_end_x = clickX;
-		mb_end_y = clickY;
-		var dif_x = mb_start_x + (mb_end_x - mb_start_x) - (parseInt(document.getElementById('dragMapSize').style.width)/2);
-		var dif_y = mb_start_y + (mb_end_y - mb_start_y) - (parseInt(document.getElementById('dragMapSize').style.height)/2);
+		var dif_x = clickX - (parseInt(document.getElementById('dragMapSize').style.width)/2);
+		var dif_y = clickY - (parseInt(document.getElementById('dragMapSize').style.height)/2);
 		mb_arrangeElement('', "dragMapSize", dif_x, dif_y);
+		mb_arrangeElement('', "dragMapSize_helper", clickX-250, clickY-250);
 	}
-}
\ No newline at end of file
+}