HallScheme is a lightweight simple library for creating rectangle halls.

1) Add as a dependency to your build.gradle:

dependencies {
    compile 'com.github.Nublo:hallscheme:1.0.0'
}

2) Add by.anatoldeveloper.ZoomableImage to your layout XML file. Content is automatically centered within free space.

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <by.anatoldeveloper.hallscheme.view.ZoomableImageView
        android:id="@+id/zoomable_image"
        android:layout_width="match_parent"
        android:layout_height="match_parent" />

</RelativeLayout>

3) Customize Seat interface:

public class SeatExample implements Seat {

    public int id;
    public int color = Color.RED;
    public String marker;
    public String selectedSeatMarker;
    public HallScheme.SeatStatus status;

    @Override
    public int id() {
        return id;
    }

    @Override
    public int color() {
        return color;
    }

    @Override
    public String marker() {
        return marker;
    }

    @Override
    public String selectedSeat() {
        return selectedSeatMarker;
    }

    @Override
    public HallScheme.SeatStatus status() {
        return status;
    }

    @Override
    public void setStatus(HallScheme.SeatStatus status) {
        this.status = status;
    }

}

4) Attach ZoomableImage to HallScheme and add a 2-dimesional Seat array:

ZoomableImageView imageView = (ZoomableImageView) rootView.findViewById(R.id.zoomable_image);
Seat seats[][] = new Seat[10][10];
HallScheme scheme = new HallScheme(imageView, seats, getActivity());

5) Set SeatListener to HallScheme to handle click events on seats:

scheme.setSeatListener(new SeatListener() {

            @Override
            public void selectSeat(int id) {
                Toast.makeText(getActivity(), "select seat " + id, Toast.LENGTH_SHORT).show();
            }

            @Override
            public void unSelectSeat(int id) {
                Toast.makeText(getActivity(), "unSelect seat " + id, Toast.LENGTH_SHORT).show();
            }

        });

To use the library you should implement custom Seat. It has the following methods:

a) int id() should return current id for current Seat. It will also be later returned when you attach SeatListener for scheme.

b) int color() should return the color of the checked Seat.

c) String marker() should return text representation for empty Seat. For example you can use it to see row and column.

d) String selectedSeat(); should return Seat number when the Seat is checked.

e) HallScheme.SeatStatus status(); should return current state of the Seat. The following statuses are supported:

• FREE - seat is free and can be checked;
• CHOSEN - seat is chosen and can be unchecked;
• BUSY - seat cannot be used;
• INFO - the seat is empty, but you can use to show some text there;
• EMPTY - the seat is empty.

f) void setStatus(HallScheme.SeatStatus status); update current Seat status.

a) Zoomable image.

b) Fling while touching image.

c) Smooth animation available either on double tap or on gesture move.

d) Showing scheme scene from any of 4 sides.

hallScheme.setScenePosition(ScenePosition.NORTH);

• NORTH
• SOUTH
• EAST
• WEST

e) Adding text to show row or hall numbers.

f) Handling clicking on seats on your scheme.

g) Full customization of color for drawing.

• Setting background color for scheme:

  scheme.setBackgroundColor(Color.RED);

• Setting color for BUSY seats:

  scheme.setUnavailableSeatBackgroundColor(Color.RED);

• Setting background color for CHOSEN seats:

  scheme.setChosenSeatBackgroundColor(Color.RED);

• Setting text color for CHOSEN seats:

  scheme.setChosenSeatTextColor(Color.RED);

• Setting color for INFO seats:

  scheme.setMarkerColor(Color.RED);

• Setting text color for Scene:

  scheme.setScenePaintColor(Color.RED);

• Setting background color for Scene:

  scheme.setSceneBackgroundColor(Color.RED);

h) Setting custom name for scene:

scheme.setSceneName("Custom name");

Image is currently drawing on standart Bitmap. Maximum size of Bitmap depends on underlying OpenGL implementation and it varies depending on device. It shouldn't be less then 2048x2048. With current implementation your hall dimension(either rows or columns) shouldn't be more then 58. Maximum scheme that can be drawn is 58x58. Of course, if you know that devices using your app will have bigger maximum size - you can draw larger schemes.

The MIT License (MIT)

Copyright (c) 2015 Varyvonchyk Anatol

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

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SOFTWARE.