Diff: Application/DigitButton.h

Revision:

7:4ba7bd9d32ef

Child:

9:ce69a7adfe9c

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Application/DigitButton.h	Thu Jan 08 19:28:22 2015 +0100
@@ -0,0 +1,87 @@
+/*
+ *  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.
+ */
+ 
+#ifndef DIGITBUTTON_H
+#define DIGITBUTTON_H
+
+#include "Clickable.h"
+#include "Image.h"
+
+/**
+ * The DigitButton is used in the same way as the Button so see it for an example
+ */
+class DigitButton : public Clickable {
+public:
+
+    /** Creates a new button
+     *
+     *  This button will use a SWIM window to draw on. That window will use
+     *  part of the full size frame buffer to draw on.
+     *
+     *  @param fb      the frame buffer
+     *  @param x       the upper left corner of the button
+     *  @param y       the upper left corner of the button
+     *  @param width   the width of the button
+     *  @param height  the height of the button
+     */
+  DigitButton(COLOR_T* fb, uint16_t x, uint16_t y, uint16_t width, uint16_t height);
+  ~DigitButton();
+
+    /** Loads the mandatory "normal" state image and the optional "pressed" state image
+     *
+     *  @param imgUp   the file with the image for the normal state
+     *  @param imgDown the file with the image for the pressed state (or NULL to use the same)
+     *
+     *  @returns
+     *       true on success
+     *       false on failure
+     */
+  bool loadImages(const char* imgUp, const char* imgDown = 0);
+
+    /** Loads the mandatory "normal" state image and the optional "pressed" state image
+     *
+     *  @param imgUp   the image for the normal state
+     *  @param imgDown the image for the pressed state (or NULL to use the same)
+     *
+     *  @returns
+     *       true on success
+     *       false on failure
+     */
+  bool loadImages(const unsigned char* imgUp, unsigned int imgUpSize, 
+                  const unsigned char* imgDown = 0, unsigned int imgDownSize = 0);
+  
+  void setNumDigits(unsigned int num);
+  void setValue(unsigned int val);
+
+    /** Draws the button (on a new framebuffer if one is specified)
+     *  @param fb      the frame buffer
+     */
+  virtual void draw(COLOR_T* fb = 0);
+
+private:
+  Image::ImageData_t _imgUp;
+  Image::ImageData_t _imgDown;
+  unsigned int _value;
+  unsigned int _digits;
+  unsigned int _img_y_offset;
+  unsigned int _img_digit_height;
+  unsigned int _img_digit_width;
+  unsigned int _img_digit_size;
+
+  void drawDigits(Image::ImageData_t& img);
+};
+
+#endif /* IMAGEBUTTON_H */