AppDraw.h

00001 /*
00002  *  Copyright 2014 Embedded Artists AB
00003  *
00004  *  Licensed under the Apache License, Version 2.0 (the "License");
00005  *  you may not use this file except in compliance with the License.
00006  *  You may obtain a copy of the License at
00007  *
00008  *    http://www.apache.org/licenses/LICENSE-2.0
00009  *
00010  *  Unless required by applicable law or agreed to in writing, software
00011  *  distributed under the License is distributed on an "AS IS" BASIS,
00012  *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
00013  *  See the License for the specific language governing permissions and
00014  *  limitations under the License.
00015  */
00016 
00017 #ifndef APP_DRAW_H
00018 #define APP_DRAW_H
00019 
00020 #include "App.h"
00021 #include "DMBoard.h"
00022 #include "lpc_swim.h"
00023 #include "ImageButton.h"
00024 #include "Resource.h"
00025 
00026 /**
00027  * An App example. Lets the user draw on the screen. Each finger is 
00028  * assigned it's own color.
00029  *
00030  * The purpose of this example is to show the use of a multitouch
00031  * display.
00032  */
00033 class AppDraw : public App {
00034 public:
00035 
00036     AppDraw();
00037     virtual ~AppDraw();
00038 
00039     virtual bool setup();
00040     virtual void runToCompletion();
00041     virtual bool teardown();
00042 
00043     enum Resources {
00044         Resource_Ok_button,
00045     };
00046 
00047     /** Specifies the resource to use
00048      *
00049      *  Adds a resource for a specific id. This allows the
00050      *  user program to select e.g. which image to use and
00051      *  if it should be loaded from a file or an array.
00052      *
00053      *  @param id  the identifier
00054      *  @param res the resource
00055      */
00056     void addResource(Resources id, Resource* res);
00057 
00058 private:
00059     enum Constants {
00060         MaxSupportedFingers = 5,
00061     };
00062     Display* _disp;
00063     SWIM_WINDOW_T* _win;
00064     void* _fb;
00065     ImageButton* _btn;
00066     touch_coordinate_t _coords[MaxSupportedFingers];
00067     Resource* _resOk;
00068 
00069     void draw();
00070 };
00071 
00072 #endif
00073 
00074