Chris Womack / sampleEmptyGUI

Empty Launcher for the LPC4088. Base code

Dependencies:   DMBasicGUI DMSupport

Fork of lpc4088_displaymodule_empty_launcher by Embedded Artists

AppTemplate.cpp@3:f8a70ff53987, 2015-04-28 (annotated)

Committer:
alindvall
Date:
Tue Apr 28 11:56:04 2015 +0000
Revision:
3:f8a70ff53987
Parent:
0:71e474187082 
Updated to latest version of the DMSupport library

Who changed what in which revision?

UserRevisionLine numberNew contents of line
alindvall 0:71e474187082 1 /*
alindvall 0:71e474187082 2 * Copyright 2014 Embedded Artists AB
alindvall 0:71e474187082 3 *
alindvall 0:71e474187082 4 * Licensed under the Apache License, Version 2.0 (the "License");
alindvall 0:71e474187082 5 * you may not use this file except in compliance with the License.
alindvall 0:71e474187082 6 * You may obtain a copy of the License at
alindvall 0:71e474187082 7 *
alindvall 0:71e474187082 8 * http://www.apache.org/licenses/LICENSE-2.0
alindvall 0:71e474187082 9 *
alindvall 0:71e474187082 10 * Unless required by applicable law or agreed to in writing, software
alindvall 0:71e474187082 11 * distributed under the License is distributed on an "AS IS" BASIS,
alindvall 0:71e474187082 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
alindvall 0:71e474187082 13 * See the License for the specific language governing permissions and
alindvall 0:71e474187082 14 * limitations under the License.
alindvall 0:71e474187082 15 */
alindvall 0:71e474187082 16
alindvall 0:71e474187082 17
alindvall 0:71e474187082 18 #include "mbed.h"
alindvall 0:71e474187082 19 #include "AppTemplate.h"
alindvall 0:71e474187082 20 #include "lpc_swim_font.h"
alindvall 0:71e474187082 21 #include "lpc_colors.h"
alindvall 0:71e474187082 22 #include "image_data.h"
alindvall 0:71e474187082 23
alindvall 0:71e474187082 24 /******************************************************************************
alindvall 0:71e474187082 25 * Defines and typedefs
alindvall 0:71e474187082 26 *****************************************************************************/
alindvall 0:71e474187082 27
alindvall 0:71e474187082 28 #define BTN_WIDTH 65
alindvall 0:71e474187082 29 #define BTN_HEIGHT 40
alindvall 0:71e474187082 30 #define BTN_OFF 20
alindvall 0:71e474187082 31
alindvall 0:71e474187082 32 /******************************************************************************
alindvall 0:71e474187082 33 * Local variables
alindvall 0:71e474187082 34 *****************************************************************************/
alindvall 0:71e474187082 35
alindvall 0:71e474187082 36
alindvall 0:71e474187082 37 /******************************************************************************
alindvall 0:71e474187082 38 * Private functions
alindvall 0:71e474187082 39 *****************************************************************************/
alindvall 0:71e474187082 40
alindvall 0:71e474187082 41 static void buttonClicked(uint32_t x)
alindvall 0:71e474187082 42 {
alindvall 0:71e474187082 43 bool* done = (bool*)x;
alindvall 0:71e474187082 44 *done = true;
alindvall 0:71e474187082 45 }
alindvall 0:71e474187082 46
alindvall 0:71e474187082 47 void AppTemplate::draw()
alindvall 0:71e474187082 48 {
alindvall 0:71e474187082 49 // Prepare fullscreen
alindvall 0:71e474187082 50 swim_window_open(_win,
alindvall 0:71e474187082 51 _disp->width(), _disp->height(), // full size
alindvall 0:71e474187082 52 (COLOR_T*)_fb,
alindvall 0:71e474187082 53 0,0,_disp->width()-1, _disp->height()-1, // window position and size
alindvall 0:71e474187082 54 0, // border
alindvall 0:71e474187082 55 BLUE, WHITE, BLACK); // colors: pen, backgr, forgr
alindvall 0:71e474187082 56
alindvall 0:71e474187082 57 // Show a message
alindvall 0:71e474187082 58 swim_put_text_xy(_win, "Hello World!", 100, 100);
alindvall 0:71e474187082 59
alindvall 0:71e474187082 60 // Create the OK button that will end this application
alindvall 0:71e474187082 61 _btn = new ImageButton(_win->fb, _win->xpmax - BTN_OFF - BTN_WIDTH, _win->ypmax - BTN_OFF - BTN_HEIGHT, BTN_WIDTH, BTN_HEIGHT);
alindvall 0:71e474187082 62 _btn->loadImages(img_ok, img_size_ok);
alindvall 0:71e474187082 63 _btn->draw();
alindvall 0:71e474187082 64 }
alindvall 0:71e474187082 65
alindvall 0:71e474187082 66 /******************************************************************************
alindvall 0:71e474187082 67 * Public functions
alindvall 0:71e474187082 68 *****************************************************************************/
alindvall 0:71e474187082 69
alindvall 0:71e474187082 70 AppTemplate::AppTemplate() : _disp(NULL), _win(NULL), _fb(NULL), _btn(NULL)
alindvall 0:71e474187082 71 {
alindvall 0:71e474187082 72 }
alindvall 0:71e474187082 73
alindvall 0:71e474187082 74 AppTemplate::~AppTemplate()
alindvall 0:71e474187082 75 {
alindvall 0:71e474187082 76 teardown();
alindvall 0:71e474187082 77 }
alindvall 0:71e474187082 78
alindvall 0:71e474187082 79 bool AppTemplate::setup()
alindvall 0:71e474187082 80 {
alindvall 0:71e474187082 81 _disp = DMBoard::instance().display();
alindvall 0:71e474187082 82 _win = (SWIM_WINDOW_T*)malloc(sizeof(SWIM_WINDOW_T));
alindvall 0:71e474187082 83 _fb = _disp->allocateFramebuffer();
alindvall 0:71e474187082 84
alindvall 0:71e474187082 85 return (_win != NULL && _fb != NULL);
alindvall 0:71e474187082 86 }
alindvall 0:71e474187082 87
alindvall 0:71e474187082 88 void AppTemplate::runToCompletion()
alindvall 0:71e474187082 89 {
alindvall 0:71e474187082 90 // Draw on the frame buffer
alindvall 0:71e474187082 91 draw();
alindvall 0:71e474187082 92
alindvall 0:71e474187082 93 // Configure the button to call buttonClicked() when clicked
alindvall 0:71e474187082 94 bool done = false;
alindvall 0:71e474187082 95 _btn->setAction(buttonClicked, (uint32_t)&done);
alindvall 0:71e474187082 96
alindvall 0:71e474187082 97 // Switch to "our" frame buffer, but save the old one so it can be
alindvall 0:71e474187082 98 // restored when we exit our application
alindvall 0:71e474187082 99 void* oldFB = _disp->swapFramebuffer(_fb);
alindvall 0:71e474187082 100
alindvall 0:71e474187082 101 TouchPanel* touch = DMBoard::instance().touchPanel();
alindvall 0:71e474187082 102 touch_coordinate_t coord;
alindvall 0:71e474187082 103 while(!done) {
alindvall 0:71e474187082 104 // wait for a new touch signal (signal is sent from AppLauncher,
alindvall 0:71e474187082 105 // which listens for touch events)
alindvall 0:71e474187082 106 Thread::signal_wait(0x1);
alindvall 0:71e474187082 107 if (touch->read(coord) == TouchPanel::TouchError_Ok) {
alindvall 0:71e474187082 108
alindvall 0:71e474187082 109 // you can do something where with the touch event if you like
alindvall 0:71e474187082 110 // for example
alindvall 0:71e474187082 111 //
alindvall 0:71e474187082 112 // swim_put_circle(_win, coord.x, coord.y, 2, 1);
alindvall 0:71e474187082 113 //
alindvall 0:71e474187082 114
alindvall 0:71e474187082 115
alindvall 0:71e474187082 116 // See if the touch event effects the button
alindvall 0:71e474187082 117 if (_btn->handle(coord.x, coord.y, coord.z > 0)) {
alindvall 0:71e474187082 118 _btn->draw();
alindvall 0:71e474187082 119 }
alindvall 0:71e474187082 120 }
alindvall 0:71e474187082 121 }
alindvall 0:71e474187082 122
alindvall 0:71e474187082 123 // User has clicked the button, restore the original frame buffer
alindvall 0:71e474187082 124 _disp->swapFramebuffer(oldFB);
alindvall 0:71e474187082 125 swim_window_close(_win);
alindvall 0:71e474187082 126 }
alindvall 0:71e474187082 127
alindvall 0:71e474187082 128 bool AppTemplate::teardown()
alindvall 0:71e474187082 129 {
alindvall 0:71e474187082 130 if (_win != NULL) {
alindvall 0:71e474187082 131 free(_win);
alindvall 0:71e474187082 132 _win = NULL;
alindvall 0:71e474187082 133 }
alindvall 0:71e474187082 134 if (_fb != NULL) {
alindvall 0:71e474187082 135 free(_fb);
alindvall 0:71e474187082 136 _fb = NULL;
alindvall 0:71e474187082 137 }
alindvall 0:71e474187082 138 if (_btn != NULL) {
alindvall 0:71e474187082 139 delete _btn;
alindvall 0:71e474187082 140 _btn = NULL;
alindvall 0:71e474187082 141 }
alindvall 0:71e474187082 142 return true;
alindvall 0:71e474187082 143 }
alindvall 0:71e474187082 144