ItEr29S08CUCreacionProxectoPlanificacionItEr28S09: Connecting zoom buttons with TimeTracker.

ganttzk/src/main/java/org/zkoss/ganttz/GanttPanel.java

@@ -89,4 +89,16 @@ public class GanttPanel extends XulElement implements AfterCompose {
     public void comingFromAnotherTab() {
         timeTrackerComponent.recreate();
     }
+
+    public void zoomIncrease() {
+        getTimeTracker().zoomIncrease();
+    }
+
+    public void zoomDecrease() {
+        getTimeTracker().zoomDecrease();
+    }
+
+    private TimeTracker getTimeTracker() {
+        return timeTrackerComponent.getTimeTracker();
+    }
 }

ganttzk/src/main/java/org/zkoss/ganttz/Planner.java

@@ -111,6 +111,20 @@ public class Planner extends HtmlMacroComponent  {
         }
     }
 
+    public void zoomIncrease() {
+        if (ganttPanel == null) {
+            return;
+        }
+        ganttPanel.zoomIncrease();
+    }
+
+    public void zoomDecrease() {
+        if (ganttPanel == null) {
+            return;
+        }
+        ganttPanel.zoomDecrease();
+    }
+
     public <T> void setConfiguration(PlannerConfiguration<T> configuration) {
         if (configuration == null)
             return;

ganttzk/src/main/resources/web/ganttz/zul/plannerLayout.zul

@@ -1,4 +1,8 @@
 <zk xmlns:n="http://www.zkoss.org/2005/zk/native">
+<zscript><![CDATA[
+planner = self;
+]]>
+</zscript>
     <borderlayout sclass="plannerlayout" width="auto">
        <north height="30px" border="0">
        <hbox align="center">
@@ -6,8 +10,8 @@
         <button label="Back" />
         <button label="Company view" />
         <separator/>
-        <button label="+" />
-        <button label="-" />
+        <button label="+" onClick="planner.zoomIncrease();"/>
+        <button label="-" onClick="planner.zoomDecrease();"/>
         From: <datebox /> to: <datebox />
         <separator/>
         Filter: