Diff: AppLauncherSpecial.cpp

Revision:

0:b94e330c98ac

Child:

2:229f88d6f56b

diff -r 000000000000 -r b94e330c98ac AppLauncherSpecial.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/AppLauncherSpecial.cpp	Fri Mar 20 13:36:44 2015 +0000
@@ -0,0 +1,385 @@
+/*
+ *  Copyright 2014 Embedded Artists AB
+ *
+ *  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.
+ */
+
+
+#include "mbed.h"
+#include "AppLauncherSpecial.h"
+#include "lpc_swim_image.h"
+#include "lpc_swim_font.h"
+#include "Button.h"
+#include "ImageButton.h"
+#include "image_data.h"
+
+/******************************************************************************
+ * Defines and typedefs
+ *****************************************************************************/
+ 
+#define APP_PREFIX  "[Launcher*] "
+
+#define NO_APPLICATION  (-1)
+
+#define APP_SIGID_TOUCH  0x1
+
+/******************************************************************************
+ * Private variables
+ *****************************************************************************/
+
+static int appToLaunch = NO_APPLICATION;
+static osThreadId appThread;
+
+/******************************************************************************
+ * Private functions
+ *****************************************************************************/
+
+static void buttonClicked(uint32_t x)
+{
+    if (appToLaunch == NO_APPLICATION) {
+        appToLaunch = (int)x;
+    }
+}
+
+void AppLauncherSpecial::draw()
+{
+    // Prepare fullscreen
+    swim_window_open(_win, 
+                     _disp->width(), _disp->height(),         // full size
+                     (COLOR_T*)_fb,
+                     0,0,_disp->width()-1, _disp->height()-1, // window position and size
+                     0,                                     // border
+                     BLACK, WHITE, /*WHITE, BLACK,*/ BLACK);                    // colors: pen, backgr, forgr
+    //swim_set_title(_win, "Demo Program", WHITE);
+
+    swim_put_image(_win, _bgImg.pixels, _bgImg.width, _bgImg.height);
+    
+    if (_supportsCalibration) {
+      const char* msg = "(Press physical UserButton >2s to calibrate touch)";
+      int w, h;
+      swim_get_string_bounds(_win, msg, &w, &h);
+      swim_set_font_transparency(_win, 0); // 0=Transparent, 1=Opaque
+      swim_put_text_xy(_win, msg, (_disp->width()-w)/2, _disp->height()-(3*h)/2);
+      swim_set_font_transparency(_win, 1); // 0=Transparent, 1=Opaque
+    }
+    
+    for (int i = 0; i < _usedButtons; i++) {
+        _buttons[i]->draw();
+    }
+}
+
+void AppLauncherSpecial::onTouchEvent()
+{
+    _newTouchEvent = true;
+    osSignalSet(appThread, APP_SIGID_TOUCH);
+}
+
+void AppLauncherSpecial::onButtonEvent()
+{
+    _newButtonEvent = true;
+    osSignalSet(appThread, APP_SIGID_TOUCH);
+}
+
+static void onTimeoutEvent(void const* arg)
+{
+    *((bool*)arg) = true;
+    osSignalSet(appThread, APP_SIGID_TOUCH);
+}
+
+/******************************************************************************
+ * Public functions
+ *****************************************************************************/
+
+AppLauncherSpecial::AppLauncherSpecial(int iconWidth, int iconHeight) : 
+    _disp(NULL), _win(NULL), _fb(NULL), _usedButtons(0), 
+    _resBg(NULL), _iconWidth(iconWidth), _iconHeight(iconHeight)
+{
+    _bgImg.pointerToFree = NULL;
+    _bgImg.pixels = NULL;
+    _currentTime[0] = '\0';
+
+    for (int i = 0; i < NumberOfButtons; i++) {
+        _buttons[i] = NULL;
+    }
+    bool r;
+    int n;
+    if (DMBoard::instance().touchPanel()->info(&r, &n, &_supportsCalibration) != TouchPanel::TouchError_Ok) {
+      _supportsCalibration = false;
+    }
+}
+
+AppLauncherSpecial::~AppLauncherSpecial()
+{
+    teardown();
+}
+
+bool AppLauncherSpecial::setup()
+{
+    RtosLog* log = DMBoard::instance().logger();
+
+    _disp = DMBoard::instance().display();
+    _win = (SWIM_WINDOW_T*)malloc(sizeof(SWIM_WINDOW_T));
+    _fb = _disp->allocateFramebuffer();
+    
+    if (_win == NULL || _fb == NULL) {
+        log->printf(APP_PREFIX"Failed to allocate memory for framebuffer\r\n");
+        return false;
+    }
+    
+    if (Image::decode(_resBg, Image::RES_16BIT, &_bgImg) != 0) {
+        log->printf(APP_PREFIX"Failed to load background image\n");
+        return false;
+    }
+    
+    return true;
+}
+
+void AppLauncherSpecial::runToCompletion()
+{
+    DMBoard* board = &DMBoard::instance();
+    RtosLog* log = board->logger();
+    
+    appThread = osThreadGetId();
+
+    // Draw something on the framebuffer before using it so that it doesn't look garbled
+    draw();
+    
+    // Start display in default mode (16-bit)
+    Display::DisplayError disperr = _disp->powerUp(_fb);
+    if (disperr != Display::DisplayError_Ok) {
+        log->printf(APP_PREFIX"Failed to initialize the display, got error %d\r\n", disperr);
+        return;
+    }
+    
+    // Render the current time in the upper right corner once every second
+    bool updateClock = false;
+    RtosTimer updateClockTimer(onTimeoutEvent, osTimerPeriodic, &updateClock);
+    updateClockTimer.start(1000);
+    int clockXOff, clockYOff;
+    swim_get_string_bounds(_win, "Fri Mar 20 10:32:58 2015", &clockXOff, &clockYOff);
+    clockXOff = _win->xpvmax - clockXOff - 20;
+    clockYOff = 5;
+    
+    // To keep track of the button pushes
+    bool buttonPressed = false;
+    bool buttonTimeout = false;
+    InterruptIn button(P2_10);
+    button.rise(this, &AppLauncherSpecial::onButtonEvent);
+    button.fall(this, &AppLauncherSpecial::onButtonEvent);
+    RtosTimer  buttonTimer(onTimeoutEvent, osTimerOnce, &buttonTimeout);
+    
+    // To prevent the "exit" click of a launched application to launch
+    // a new application. This could happen on a multitouch display if
+    // the launched applications' exit/ok/cancel button is located on
+    // top of one of the buttons in the launcher.
+    Timer tExit;
+    tExit.start();
+    
+    // Wait for touches
+    TouchPanel* touch = board->touchPanel();
+    FunctionPointer* fpOld = touch->setListener(new FunctionPointer(this, &AppLauncherSpecial::onTouchEvent));
+    touch_coordinate_t coord;
+    while (true) {
+        Thread::signal_wait(APP_SIGID_TOUCH);
+        if (_newTouchEvent) {
+          if (buttonPressed) {
+            // cancel
+            buttonPressed = false;
+            buttonTimer.stop();
+          }
+          _newTouchEvent = false;
+          if (touch->read(coord) != TouchPanel::TouchError_Ok) {
+            log->printf("Failed to read touch coordinate\n");
+            continue;
+          }
+          // Process the touch coordinate for each button
+          for (int i = 0; i < NumberOfButtons; i++) {
+            if (_buttons[i] != NULL) {
+              if (_buttons[i]->handle(coord.x, coord.y, coord.z > 0)) {
+                _buttons[i]->draw();
+              }
+            }
+          }
+        } else if (buttonTimeout) {
+          if (board->buttonPressed()) {
+            appToLaunch = CalibrationApp;
+          }
+          buttonPressed = false;
+          buttonTimeout = false;
+        } else if (_newButtonEvent) {
+          _newButtonEvent = false;
+          if (board->buttonPressed()) {
+            buttonPressed = true;
+            buttonTimer.start(2000);
+          } else {
+            buttonPressed = false;
+            buttonTimer.stop();
+          }
+          continue;
+        } else if (updateClock) {
+          updateClock = false;
+          time_t seconds = time(0);
+          sprintf(_currentTime, "%-25s", ctime(&seconds));
+          swim_put_text_xy(_win, _currentTime, clockXOff, clockYOff);
+          continue;
+        }
+        
+        if (appToLaunch != NO_APPLICATION) {
+          if (tExit.read_ms() < 500) {
+            appToLaunch = NO_APPLICATION;
+            continue;
+          }
+          App* a = NULL;
+          if (_callback != NULL) {
+            a = _callback(appToLaunch);
+          }
+          if (a != NULL) {
+            if (a->setup()) {
+              a->runToCompletion();
+              a->teardown();
+            }
+            delete a;            
+          }
+          tExit.reset();
+          appToLaunch = NO_APPLICATION;
+        }
+    }
+    
+    // restore old touch listener (get our listener in return)
+    fpOld = touch->setListener(fpOld);
+    delete fpOld;
+}
+
+bool AppLauncherSpecial::teardown()
+{
+    if (_win != NULL) {
+        free(_win);
+        _win = NULL;
+    }
+    if (_fb != NULL) {
+        free(_fb);
+        _fb = NULL;
+    }
+    for (int i = 0; i < NumberOfButtons; i++) {
+        _buttons[i] = NULL;
+        if (_buttons[i] != NULL) {
+            delete _buttons[i];
+            _buttons[i] = NULL;
+        }
+    }
+    if (_bgImg.pointerToFree != NULL) {
+        free(_bgImg.pointerToFree);
+        _bgImg.pointerToFree = NULL;
+    }    
+    return true;
+}
+
+void AppLauncherSpecial::setAppCreatorFunc(App*(*callback)(uint32_t buttonID))
+{
+    _callback = callback;
+}
+
+bool AppLauncherSpecial::addButton(uint32_t buttonID, const char* caption)
+{
+    int idx = _usedButtons++;
+    int xspace = ((_disp->width() - ButtonColumns * ButtonWidth) / (ButtonColumns + 1));
+    int yspace = ((_disp->height() - TitleHeight - ButtonRows * ButtonHeight) / (ButtonRows + 1));
+    
+    _buttons[idx] = new Button(caption, (COLOR_T*)_fb, 
+                              xspace + (ButtonWidth + xspace)*(idx%ButtonColumns), 
+                              TitleHeight + yspace + (ButtonHeight + yspace)*(idx/ButtonColumns), 
+                              ButtonWidth, ButtonHeight);
+    _buttons[idx]->setAction(buttonClicked, buttonID);
+    //_buttons[idx]->draw();
+    return true;
+}
+
+bool AppLauncherSpecial::addImageButton(uint32_t buttonID, const char* imgUp, const char* imgDown)
+{
+    return addImageButton(buttonID, NULL, BLACK, imgUp, imgDown);
+}
+
+bool AppLauncherSpecial::addImageButton(uint32_t buttonID, const char* caption, COLOR_T color, const char* imgUp, const char* imgDown)
+{
+    int idx = _usedButtons++;
+    int xspace = ((_disp->width() - ButtonColumns * _iconWidth) / (ButtonColumns + 1));
+    int yspace = ((_disp->height() - TitleHeight - ButtonRows * _iconHeight) / (ButtonRows + 1));
+    
+    ImageButton* img =  new ImageButton((COLOR_T*)_fb, 
+                              xspace + (_iconWidth + xspace)*(idx%ButtonColumns), 
+                              TitleHeight + yspace + (_iconHeight + yspace)*(idx/ButtonColumns), 
+                              _iconWidth, _iconHeight, caption, color);
+    if (img->loadImages(imgUp, imgDown)) {
+      _buttons[idx] = img;
+      _buttons[idx]->setAction(buttonClicked, buttonID);
+      //_buttons[idx]->draw();
+      return true;
+    } else {
+      //DMBoard::instance().logger()->printf("Failed to load image for buttonID %u, %s[%s]\n", buttonID, imgUp, imgDown==NULL?"":imgDown);
+      return false;
+    }
+}
+
+bool AppLauncherSpecial::addImageButton(uint32_t buttonID, const unsigned char* imgUp, unsigned int imgUpSize, const unsigned char* imgDown, unsigned int imgDownSize)
+{
+    return addImageButton(buttonID, NULL, BLACK, imgUp, imgUpSize, imgDown, imgDownSize);
+}
+
+bool AppLauncherSpecial::addImageButton(uint32_t buttonID, const char* caption, COLOR_T color, const unsigned char* imgUp, unsigned int imgUpSize, const unsigned char* imgDown, unsigned int imgDownSize)
+{
+    int idx = _usedButtons++;
+    int xspace = ((_disp->width() - ButtonColumns * _iconWidth) / (ButtonColumns + 1));
+    int yspace = ((_disp->height() - TitleHeight - ButtonRows * _iconHeight) / (ButtonRows + 1));
+    
+    ImageButton* img =  new ImageButton((COLOR_T*)_fb, 
+                              xspace + (_iconWidth + xspace)*(idx%ButtonColumns), 
+                              TitleHeight + yspace + (_iconHeight + yspace)*(idx/ButtonColumns), 
+                              _iconWidth, _iconHeight, caption, color);
+    img->setTransparency(RED);
+    if (img->loadImages(imgUp, imgUpSize, imgDown, imgDownSize)) {
+      _buttons[idx] = img;
+      _buttons[idx]->setAction(buttonClicked, buttonID);
+      //_buttons[idx]->draw();
+      return true;
+    } else {
+      //DMBoard::instance().logger()->printf("Failed to load image for buttonID %u, %s[%s]\n", buttonID, imgUp, imgDown==NULL?"":imgDown);
+      return false;
+    }
+}
+
+bool AppLauncherSpecial::addImageButton(uint32_t buttonID, const char* caption, COLOR_T color, Resource* resUp, Resource* resDown)
+{
+    int idx = _usedButtons++;
+    int xspace = ((_disp->width() - ButtonColumns * _iconWidth) / (ButtonColumns + 1));
+    int yspace = ((_disp->height() - TitleHeight - ButtonRows * _iconHeight) / (ButtonRows + 1));
+    
+    ImageButton* img =  new ImageButton((COLOR_T*)_fb, 
+                              xspace + (_iconWidth + xspace)*(idx%ButtonColumns), 
+                              TitleHeight + yspace + (_iconHeight + yspace)*(idx/ButtonColumns), 
+                              _iconWidth, _iconHeight, caption, color);
+    if (img->loadImages(resUp, resDown)) {
+      _buttons[idx] = img;
+      _buttons[idx]->setAction(buttonClicked, buttonID);
+      //_buttons[idx]->draw();
+      return true;
+    } else {
+      //DMBoard::instance().logger()->printf("Failed to load image for buttonID %u, %s[%s]\n", buttonID, imgUp, imgDown==NULL?"":imgDown);
+      return false;
+    }
+}
+
+void AppLauncherSpecial::addResource(Resources id, Resource* res)
+{
+    _resBg = res;
+}
+