Diff: Application/AppLauncher.cpp

Revision:

0:4977187e90c7

Child:

3:3fabfe3339b8

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Application/AppLauncher.cpp	Thu Dec 11 11:03:57 2014 +0000
@@ -0,0 +1,250 @@
+/*
+ *  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 "AppLauncher.h"
+#include "AppSettings.h"
+#include "AppTouchCalibration.h"
+#include "AppColorPicker.h"
+#include "AppImageViewer.h"
+#include "lpc_swim_font.h"
+#include "Button.h"
+
+/******************************************************************************
+ * Defines and typedefs
+ *****************************************************************************/
+ 
+#define APP_PREFIX  "[Launcher] "
+
+
+typedef enum {
+    NoApplication = -1,
+    SettingsApp   =  0,
+    ColorPicker,
+    TouchTestApp,
+    ImageViewerApp,
+    //SlideshowApp,
+    //TouchGFXApp,
+    //EmWinApp,
+    CalibrationApp = 100,
+} AppID_t;
+
+/******************************************************************************
+ * Private variables
+ *****************************************************************************/
+
+static AppID_t appToLaunch = NoApplication;
+
+/******************************************************************************
+ * Private functions
+ *****************************************************************************/
+
+static void buttonClicked(uint32_t x)
+{
+    if (appToLaunch == NoApplication) {
+        appToLaunch = (AppID_t)x;
+    }
+}
+
+void AppLauncher::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();
+}
+
+void AppLauncher::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
+                     1,                                     // border
+                     WHITE, RED, BLACK);                    // colors: pen, backgr, forgr
+    swim_set_title(_win, "Demo Program", BLACK);
+
+    // Add many buttons
+    addButton(SettingsApp,  "Settings");
+    addButton(TouchTestApp, "Test Touch");
+    //addButton(SlideshowApp, "Slideshow");
+    //addButton(TouchGFXApp,  "TouchGFX");
+    //addButton(EmWinApp,     "emWin");
+    addButton(ColorPicker,  "Color Picker");
+    addButton(ImageViewerApp,  "Image Viewer");
+    //addButton(5, "Button 5");
+    //addButton(6, "Button 6");
+    //addButton(7, "Button 7");
+    //addButton(8, "Button 8");
+    //addButton(9, "Button 9");
+    
+    const char* msg = "(Press physical UserButton >2s to calibrate touch)";
+    int w, h;
+    swim_get_string_bounds(_win, msg, &w, &h);
+    swim_put_text_xy(_win, msg, (_disp->width()-w)/2, _disp->height()-h*4);
+}
+
+/******************************************************************************
+ * Public functions
+ *****************************************************************************/
+
+AppLauncher::AppLauncher() : _disp(NULL), _win(NULL), _fb(NULL), _usedButtons(0)
+{
+    for (int i = 0; i < NumberOfButtons; i++) {
+        _buttons[i] = NULL;
+    }
+}
+
+AppLauncher::~AppLauncher()
+{
+    teardown();
+}
+
+bool AppLauncher::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;
+    }
+    
+    return true;
+}
+
+void AppLauncher::runToCompletion()
+{
+    DMBoard* board = &DMBoard::instance();
+    RtosLog* log = board->logger();
+
+    // 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::Ok) {
+        log->printf(APP_PREFIX"Failed to initialize the display, got error %d\r\n", disperr);
+        return;
+    }
+
+    // To keep track of the button pushes
+    Timer buttonTimer;
+    bool buttonPressed = false;
+    
+    // Wait for touches
+    TouchPanel* touch = board->touchPanel();
+    TouchPanel::touchCoordinate_t coord;
+    while(touch->read(coord)) {
+        
+        // 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();
+                }
+            }
+        }
+        
+        // Check if the physical USER button on the board has been pressed
+        if (appToLaunch == NoApplication) {
+            if (board->buttonPressed()) {
+                if (buttonPressed) {
+                    if (buttonTimer.read_ms() > 2000) {
+                        // User has pressed the button more than two seconds.
+                        // Start calibration application
+                        appToLaunch = CalibrationApp;
+                        buttonTimer.stop();
+                        buttonPressed = false;
+                    }
+                } else {
+                    buttonTimer.reset();
+                    buttonTimer.start();
+                    buttonPressed = true;
+                }
+            } else if (buttonPressed) {
+                buttonTimer.stop();
+                buttonPressed = false;
+            }
+        } else {
+            // pressing the display buttons take precedence so disregard the
+            // USER button
+            buttonTimer.stop();
+            buttonPressed = false;
+        }
+        
+        if (appToLaunch != NoApplication) {
+            App* a = NULL;
+            switch (appToLaunch) {
+                case SettingsApp:
+                    a = new AppSettings();
+                    break;
+                case CalibrationApp:
+                    a = new AppTouchCalibration();
+                    break;
+                case ColorPicker:
+                    a = new AppColorPicker();
+                    break;
+                case ImageViewerApp:
+                    a = new AppImageViewer();
+                    break;
+                default:
+                    break;
+            }
+            if (a != NULL) {
+                if (a->setup()) {
+                    a->runToCompletion();
+                    a->teardown();
+                }
+                delete a;
+            }
+            appToLaunch = NoApplication;
+        }        
+    }
+}
+
+bool AppLauncher::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;
+        }
+    }
+    return true;
+}
+
+