/*
* Copyright © 2011 Nokia Corporation. All rights reserved.
* Nokia and Nokia Connecting People are registered trademarks of Nokia Corporation.
* Oracle and Java are trademarks or registered trademarks of Oracle and/or its
* affiliates. Other product and company names mentioned herein may be trademarks
* or trade names of their respective owners.
* See LICENSE.TXT for license information.
*/
package com.nokia.example.overlay;
//
// Source File Name: ControlBar.java
/**
* ControlBar displays buttons on VideoCanvas
* Buttons can be used to control VideoCanvas
* */
import java.io.IOException;
import com.nokia.mid.ui.DirectGraphics;
import com.nokia.mid.ui.DirectUtils;
import javax.microedition.lcdui.Graphics;
import javax.microedition.lcdui.Image;
import javax.microedition.media.Player;
public class ControlBar {
private DirectGraphics dg;
private VideoCanvas parent;
private int x, y;
private int width, height;
private final int W_GAP = 5;
private final int H_GAP = 2 * W_GAP;
private int button_width;
private int button_height;
/** Control Bar height spacing area */
private final int BORDER_H_SPACING = 40;
/** Control Bar width spacing area */
private final int BORDER_W_SPACING = 40;
private int first_button_x;
private int first_button_y;
private int second_button_x;
private int second_button_y;
private int third_button_x;
private int third_button_y;
/** ControlBar background color */
private final int TRANSPARENT_COLOR = 0xB000FFFF;
/** ControlBar button color */
private final int BUTTON_TRANSPARENT_COLOR = 0xB000FF00;
/** Largest image height */
private int image_height = 40;
/** Button type of ControlBar */
private int button_type;
private Image fullScreen_icon;
private Image normalScreen_icon;
private Image hide_icon;
private Image play_icon;
private Image pause_icon;
private Image snap_icon;
private String[] image_paths = {
"fromfullscreen.png",
"tofullscreen.png",
"hide.png",
"snap.png",
"play.png",
"pause.png"
};
/**
* ControlBar constructor:
* - Setting parent and values for ControlBar
* - Setting images for ControlBar
* - Height is fixed
* @param vCanvas
* @param x
* @param y
* @param width
*/
public ControlBar(VideoCanvas vCanvas, int x, int y, int width) {
this.parent = vCanvas;
this.x = x;
this.y = y;
this.createImages();
this.width = width + this.BORDER_W_SPACING;
this.height = 2 * image_height + this.BORDER_H_SPACING;
this.button_width = (width / 3) - W_GAP;
this.button_height = (this.height) - 2 * H_GAP;
this.first_button_x = x + W_GAP;
this.first_button_y = y + H_GAP;
this.second_button_x = this.first_button_x + this.button_width + W_GAP;
this.second_button_y = y + H_GAP;
this.third_button_x = this.second_button_x + this.button_width + W_GAP;
this.third_button_y = y + H_GAP;
}
/** Creates images from resources for buttons in ControlBar */
public void createImages() {
normalScreen_icon = this.loadTestImage(0);
fullScreen_icon = this.loadTestImage(1);
hide_icon = this.loadTestImage(2);
snap_icon = this.loadTestImage(3);
play_icon = this.loadTestImage(4);
pause_icon = this.loadTestImage(5);
}
/**
* Returns image. If image loading fails then null is returned.
* @param testNum
* @return button image
*/
protected Image loadTestImage(int testNum) {
Image image;
try {
image = Image.createImage("/buttons/" + image_paths[testNum]);
if (image.getHeight() > this.image_height) {
this.image_height = image.getHeight();
}
} catch (IOException ex) {
image = null;
}
return image;
}
public int getX() {
return x;
}
public int getY() {
return y;
}
public void setX(int x) {
this.x = x;
}
public void setY(int y) {
this.y = y;
}
public int getWidth() {
return width;
}
public void setWidth(int width) {
this.width = width + this.BORDER_W_SPACING;
}
public int getHeight() {
return height;
}
public void setHeight(int height) {
this.height = height + this.BORDER_H_SPACING;
}
public int getButton_type() {
return button_type;
}
public void setButton_type(int button_type) {
this.button_type = button_type;
}
/**
* drawControlBar(Graphics g)
* Drawing ControlBar with buttons:
* - Snap = Take a snapshot, which is then displayed on screen
* - Full/Norm = Toggle full screen mode
* - Hide = Hide ControlBar
* @param g - Graphics object from the paint event
*/
public void drawControlBar(Graphics g) {
dg = DirectUtils.getDirectGraphics(g);
button_width = (width / 3) - W_GAP;
button_height = (height) - 2 * H_GAP;
first_button_x = x + W_GAP;
first_button_y = y + H_GAP;
second_button_x = first_button_x + button_width + W_GAP;
second_button_y = y + H_GAP;
third_button_x = second_button_x + button_width + W_GAP;
third_button_y = y + H_GAP;
// The whole ControlBar area
dg.setARGBColor(TRANSPARENT_COLOR);
g.drawRoundRect(x, y, width, height, 30, 30);
// First button: Camera takes snapshot, video toggles play/stop
if (parent.getType() == VideoOverlayMIDlet.CAMERA) {
if (this.button_type == VideoOverlayMIDlet.ICON
&& snap_icon != null) {
this.drawIconButton(g, first_button_x, first_button_y,
button_width, button_height, snap_icon);
}
} else {
if (parent.getPlayerState() == Player.PREFETCHED) {
if (this.button_type == VideoOverlayMIDlet.ICON
&& play_icon != null) {
this.drawIconButton(g, first_button_x, first_button_y,
button_width, button_height, play_icon);
}
} else {
if (this.button_type == VideoOverlayMIDlet.ICON
&& pause_icon != null) {
this.drawIconButton(g, first_button_x, first_button_y,
button_width, button_height, pause_icon);
}
}
}
// Second button: Toggles full screen mode
if (parent.isFullScreen()) {
if (this.button_type == VideoOverlayMIDlet.ICON
&& normalScreen_icon != null) {
this.drawIconButton(g, second_button_x, second_button_y,
button_width, button_height, normalScreen_icon);
}
} else {
if (this.button_type == VideoOverlayMIDlet.ICON
&& fullScreen_icon != null) {
this.drawIconButton(g, second_button_x, second_button_y,
button_width, button_height, fullScreen_icon);
}
}
// Third button: Hides ControlBar
if (this.button_type == VideoOverlayMIDlet.ICON
&& hide_icon != null) {
this.drawIconButton(g, third_button_x, third_button_y,
button_width, button_height, hide_icon);
}
}
/**
* drawIconButton
* Drawing button with icon
* @param g
* @param x - button x
* @param y - button y
* @param width - button width
* @param height - button height
* @param icon - button icon
*/
private void drawIconButton(Graphics g, int x, int y,
int width, int height, Image icon) {
dg.setARGBColor(BUTTON_TRANSPARENT_COLOR);
g.fillRect(x, y, width, height);
g.drawImage(icon,
x + (width / 2),
y + (height / 2),
Graphics.VCENTER | Graphics.HCENTER);
}
}