Diff: AppTemplate.cpp

Revision:

0:71e474187082

Child:

4:7a016403f7fd

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/AppTemplate.cpp	Fri Feb 20 12:24:05 2015 +0000
@@ -0,0 +1,144 @@
+/*
+ *  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 "AppTemplate.h"
+#include "lpc_swim_font.h"
+#include "lpc_colors.h"
+#include "image_data.h"
+
+/******************************************************************************
+ * Defines and typedefs
+ *****************************************************************************/
+ 
+#define BTN_WIDTH  65
+#define BTN_HEIGHT 40
+#define BTN_OFF    20
+
+/******************************************************************************
+ * Local variables
+ *****************************************************************************/
+
+
+/******************************************************************************
+ * Private functions
+ *****************************************************************************/
+
+static void buttonClicked(uint32_t x)
+{
+  bool* done = (bool*)x;
+  *done = true;
+}
+
+void AppTemplate::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
+                   BLUE, WHITE, BLACK);                    // colors: pen, backgr, forgr
+    
+    // Show a message
+    swim_put_text_xy(_win, "Hello World!", 100, 100);
+    
+    // Create the OK button that will end this application
+    _btn = new ImageButton(_win->fb, _win->xpmax - BTN_OFF - BTN_WIDTH, _win->ypmax - BTN_OFF - BTN_HEIGHT, BTN_WIDTH, BTN_HEIGHT);
+    _btn->loadImages(img_ok, img_size_ok);
+    _btn->draw();
+}
+
+/******************************************************************************
+ * Public functions
+ *****************************************************************************/
+
+AppTemplate::AppTemplate() : _disp(NULL), _win(NULL), _fb(NULL), _btn(NULL)
+{
+}
+
+AppTemplate::~AppTemplate()
+{
+    teardown();
+}
+
+bool AppTemplate::setup()
+{
+    _disp = DMBoard::instance().display();
+    _win = (SWIM_WINDOW_T*)malloc(sizeof(SWIM_WINDOW_T));
+    _fb = _disp->allocateFramebuffer();
+
+    return (_win != NULL && _fb != NULL);
+}
+
+void AppTemplate::runToCompletion()
+{
+    // Draw on the frame buffer
+    draw();
+    
+    // Configure the button to call buttonClicked() when clicked
+    bool done = false;
+    _btn->setAction(buttonClicked, (uint32_t)&done);
+    
+    // Switch to "our" frame buffer, but save the old one so it can be 
+    // restored when we exit our application
+    void* oldFB = _disp->swapFramebuffer(_fb);
+    
+    TouchPanel* touch = DMBoard::instance().touchPanel();
+    touch_coordinate_t coord;
+    while(!done) {
+      // wait for a new touch signal (signal is sent from AppLauncher,
+      // which listens for touch events)
+      Thread::signal_wait(0x1);
+      if (touch->read(coord) == TouchPanel::TouchError_Ok) {
+        
+        // you can do something where with the touch event if you like
+        // for example
+        //
+        //  swim_put_circle(_win, coord.x, coord.y, 2, 1);
+        //
+        
+        
+        // See if the touch event effects the button
+        if (_btn->handle(coord.x, coord.y, coord.z > 0)) {
+          _btn->draw();
+        }
+      }
+    }
+    
+    // User has clicked the button, restore the original frame buffer
+    _disp->swapFramebuffer(oldFB);
+    swim_window_close(_win);
+}
+
+bool AppTemplate::teardown()
+{
+    if (_win != NULL) {
+        free(_win);
+        _win = NULL;
+    }
+    if (_fb != NULL) {
+        free(_fb);
+        _fb = NULL;
+    }
+    if (_btn != NULL) {
+        delete _btn;
+        _btn = NULL;
+    }
+    return true;
+}
+