Diff: Application/Clickable.cpp

Revision:

2:efae611de184

Child:

3:3fabfe3339b8

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Application/Clickable.cpp	Fri Dec 19 07:37:24 2014 +0000
@@ -0,0 +1,66 @@
+/*
+ *  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 "Clickable.h"
+#include "mbed.h"
+#include "DMBoard.h"
+
+#include "lpc_swim_font.h"
+
+Clickable::Clickable(COLOR_T* fb, uint16_t x, uint16_t y, uint16_t width, uint16_t height)
+{
+  _enabled = true;
+  _pressed = false;
+  _func = NULL;
+  
+  Display* disp = DMBoard::instance().display();
+    
+  swim_window_open_noclear(
+    &_win, 
+    disp->width(), disp->height(),   // full size
+    fb,
+    x, y, x+width-1, y+height-1,     // window position and size
+    0,                               // border
+    BLACK, BLACK, BLACK);            // colors: pen, backgr, forgr
+}
+
+bool Clickable::handle(uint16_t x, uint16_t y, bool pressed)
+{
+  bool needsRepaint = false;
+  if (_enabled) {
+    if (!pressed && _pressed) {
+      // user released => click
+      needsRepaint = true;
+      _pressed = false;
+      if (_func != NULL) {
+        _func(_funcArg);
+      }       
+    }
+    else if ((x >= _win.xpmin) && (y >= _win.ypmin) && (x <= _win.xpmax) && (y <= _win.ypmax)) {
+      if (pressed && !_pressed) {
+        // user pressing inside area
+        needsRepaint = true;
+        _pressed = true;
+      } 
+    }
+    else if (_pressed) {
+      // pressed but moved outside of the button area
+      needsRepaint = true;
+    }
+  }
+  return needsRepaint;
+}
+