From 0e1706992eb91be79fd0bb51937fe84fc81d1f6b Mon Sep 17 00:00:00 2001
From: Matti Tahvonen <matti.tahvonen@itmill.com>
Date: Fri, 10 Aug 2007 12:09:56 +0000
Subject: [PATCH] window

svn changeset:1983/svn branch:trunk
---
 .../terminal/gwt/client/ui/IWindow.java       | 191 ++++++++++++++++++
 1 file changed, 191 insertions(+)
 create mode 100644 src/com/itmill/toolkit/terminal/gwt/client/ui/IWindow.java

diff --git a/src/com/itmill/toolkit/terminal/gwt/client/ui/IWindow.java b/src/com/itmill/toolkit/terminal/gwt/client/ui/IWindow.java
new file mode 100644
index 0000000000..e9e5cbe4d7
--- /dev/null
+++ b/src/com/itmill/toolkit/terminal/gwt/client/ui/IWindow.java
@@ -0,0 +1,191 @@
+package com.itmill.toolkit.terminal.gwt.client.ui;
+
+import com.google.gwt.user.client.DOM;
+import com.google.gwt.user.client.Element;
+import com.google.gwt.user.client.Event;
+import com.google.gwt.user.client.EventPreview;
+import com.google.gwt.user.client.ui.PopupPanel;
+import com.google.gwt.user.client.ui.Widget;
+import com.itmill.toolkit.terminal.gwt.client.ApplicationConnection;
+import com.itmill.toolkit.terminal.gwt.client.Paintable;
+import com.itmill.toolkit.terminal.gwt.client.UIDL;
+
+/**
+ * 
+ * @author IT Mill Ltd
+ */
+public class IWindow extends PopupPanel implements Paintable {
+
+	public static final String CLASSNAME = "i-window";
+
+	/** pixels used by borders and paddings horizontally */
+	protected static final int BORDER_WIDTH_HORIZONTAL = 2;
+
+	/** pixels used by headers, footers, borders and paddings vertically */
+	protected static final int BORDER_WIDTH_VERTICAL = 22;
+
+	private Paintable layout;
+
+	private Element contents;
+
+	private Element header;
+
+	private Element footer;
+
+	private Element resizeBox;
+
+	private boolean dragging;
+
+	private int startX;
+
+	private int startY;
+
+	private int origX;
+
+	private int origY;
+
+	private boolean resizing;
+
+	private int origW;
+
+	private int origH;
+
+	public IWindow() {
+		super();
+		setStyleName(CLASSNAME);
+		constructDOM();
+	}
+	
+	protected void constructDOM() {
+		header = DOM.createDiv();
+		DOM.setAttribute(header, "className", CLASSNAME + "-header");
+		DOM.sinkEvents(header, Event.MOUSEEVENTS);
+		contents = DOM.createDiv();
+		DOM.setAttribute(contents, "className", CLASSNAME + "-contents");
+		footer = DOM.createDiv();
+		DOM.setAttribute(footer, "className", CLASSNAME + "-footer");
+		resizeBox = DOM.createDiv();
+		DOM.setAttribute(resizeBox, "className", CLASSNAME + "-resizeBox");
+		DOM.appendChild(footer, resizeBox);
+		DOM.sinkEvents(resizeBox, Event.MOUSEEVENTS);
+		Element wrapper = getElement();
+		DOM.appendChild(wrapper, header);
+		DOM.appendChild(wrapper, contents);
+		DOM.appendChild(wrapper, footer);
+		setPixelSize(400, 200);
+	}
+
+	public void updateFromUIDL(UIDL uidl, ApplicationConnection client) {
+		UIDL childUidl = uidl.getChildUIDL(0);
+		Paintable lo = (Paintable) client.getWidget(childUidl);
+		if (layout != null) {
+			if (layout != lo) {
+				// remove old
+				client.unregisterPaintable(layout);
+				this.remove((Widget) layout);
+				// add new
+				setWidget((Widget) lo);
+				layout = lo;
+			}
+		} else {
+			setWidget((Widget) lo);
+		}
+		if(uidl.hasAttribute("caption")) {
+			setCaption(uidl.getStringAttribute("caption"));
+		}
+		lo.updateFromUIDL(childUidl, client);
+	}
+	
+	public void setCaption(String c) {
+		DOM.setInnerHTML(header, c);
+	}
+	
+	public void setPixelSize(int width, int height) {
+		// set contents size also due IE's bugs
+		DOM.setStyleAttribute(contents, "width", (width - BORDER_WIDTH_HORIZONTAL) + "px");
+		DOM.setStyleAttribute(contents, "height", (height - BORDER_WIDTH_VERTICAL) + "px");
+		super.setPixelSize(width, height);
+	}
+
+	protected Element getContainerElement() {
+		return contents;
+	}
+
+	public void onBrowserEvent(Event event) {
+		Element target = DOM.eventGetTarget(event);
+		if (dragging || DOM.compare(header, target))
+			onHeaderEvent(event);
+		else if (resizing || DOM.compare(resizeBox, target))
+			onResizeEvent(event);
+	}
+
+	private void onResizeEvent(Event event) {
+		switch (DOM.eventGetType(event)) {
+		case Event.ONMOUSEDOWN:
+			resizing = true;
+			startX = DOM.eventGetScreenX(event);
+			startY = DOM.eventGetScreenY(event);
+			origW = getOffsetWidth();
+			origH = getOffsetHeight();
+			DOM.addEventPreview(this);
+			break;
+		case Event.ONMOUSEUP:
+			resizing = false;
+			DOM.removeEventPreview(this);
+			break;
+		case Event.ONMOUSEMOVE:
+			if (resizing) {
+				int w = DOM.eventGetScreenX(event) - startX + origW;
+				if (w < 60)
+					w = 60;
+				int h = DOM.eventGetScreenY(event) - startY + origH;
+				if (h < 60)
+					h = 60;
+				setPixelSize(w, h);
+				DOM.eventPreventDefault(event);
+			}
+			break;
+		default:
+			break;
+		}
+	}
+
+	private void onHeaderEvent(Event event) {
+		switch (DOM.eventGetType(event)) {
+		case Event.ONMOUSEDOWN:
+			dragging = true;
+			startX = DOM.eventGetScreenX(event);
+			startY = DOM.eventGetScreenY(event);
+			origX = DOM.getAbsoluteLeft(getElement());
+			origY = DOM.getAbsoluteTop(getElement());
+			DOM.addEventPreview(this);
+			break;
+		case Event.ONMOUSEUP:
+			dragging = false;
+			DOM.removeEventPreview(this);
+			break;
+		case Event.ONMOUSEMOVE:
+			if (dragging) {
+				int x = DOM.eventGetScreenX(event) - startX + origX;
+				int y = DOM.eventGetScreenY(event) - startY + origY;
+				this.setPopupPosition(x, y);
+				DOM.eventPreventDefault(event);
+			}
+			break;
+		default:
+			break;
+		}
+	}
+
+	public boolean onEventPreview(Event event) {
+		if (dragging) {
+			onHeaderEvent(event);
+			return false;
+		} else if (resizing) {
+			onResizeEvent(event);
+			return false;
+		}
+		return super.onEventPreview(event);
+	}
+
+}
-- 
2.39.5