diff options
Diffstat (limited to 'gerrit-gwtexpui/src/main/java/com/google/gwtexpui/progress/client/ProgressBar.java')
-rw-r--r-- | gerrit-gwtexpui/src/main/java/com/google/gwtexpui/progress/client/ProgressBar.java | 77 |
1 files changed, 77 insertions, 0 deletions
diff --git a/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/progress/client/ProgressBar.java b/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/progress/client/ProgressBar.java new file mode 100644 index 0000000000..5e13f55b76 --- /dev/null +++ b/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/progress/client/ProgressBar.java @@ -0,0 +1,77 @@ +// Copyright (C) 2009 The Android Open Source Project +// +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + +package com.google.gwtexpui.progress.client; + +import com.google.gwt.user.client.ui.Composite; +import com.google.gwt.user.client.ui.FlowPanel; +import com.google.gwt.user.client.ui.Label; + +/** + * A simple progress bar with a text label. + * <p> + * The bar is 200 pixels wide and 20 pixels high. To keep the implementation + * simple and lightweight this dimensions are fixed and shouldn't be modified by + * style overrides in client code or CSS. + */ +public class ProgressBar extends Composite { + static { + ProgressResources.I.css().ensureInjected(); + } + + private final String callerText; + private final Label bar; + private final Label msg; + private int value; + + /** Create a bar with no message text. */ + public ProgressBar() { + this(""); + } + + /** Create a bar displaying the specified message. */ + public ProgressBar(final String text) { + if (text == null || text.length() == 0) { + callerText = ""; + } else { + callerText = text + " "; + } + + final FlowPanel body = new FlowPanel(); + body.setStyleName(ProgressResources.I.css().container()); + + msg = new Label(callerText); + msg.setStyleName(ProgressResources.I.css().text()); + body.add(msg); + + bar = new Label(""); + bar.setStyleName(ProgressResources.I.css().bar()); + body.add(bar); + + initWidget(body); + } + + /** @return the current value of the progress meter. */ + public int getValue() { + return value; + } + + /** Update the bar's percent completion. */ + public void setValue(final int pComplete) { + assert 0 <= pComplete && pComplete <= 100; + value = pComplete; + bar.setWidth("" + (2 * pComplete) + "px"); + msg.setText(callerText + pComplete + "%"); + } +} |