Diff: AppImageViewer.h

Revision:

0:b94e330c98ac

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/AppImageViewer.h	Fri Mar 20 13:36:44 2015 +0000
@@ -0,0 +1,82 @@
+/*
+ *  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 APP_IMAGEVIEWER_H
+#define APP_IMAGEVIEWER_H
+
+#include "App.h"
+#include "DMBoard.h"
+#include "lpc_swim.h"
+#include "ImageButton.h"
+#include "Image.h"
+#include "Resource.h"
+
+/**
+ * An App example. Searches for images on any connected media (USB Mass Storage, 
+ * SD Card or QSPI File System) and presents the images one at a time, scaled to
+ * fit the display.
+ *
+ * The purpose of this example is to show how to recursively search the file
+ * systems and how to load images. The image scaling could be replaced with 
+ * rotating, cropping or any other image operation. The two second delay between
+ * images could be replaced with buttons or other touch events.
+ */
+class AppImageViewer : public App {
+public:
+
+	AppImageViewer();
+	virtual ~AppImageViewer();
+
+    virtual bool setup();
+    virtual void runToCompletion();
+    virtual bool teardown();
+
+    void load(const char* file);
+
+    enum Resources {
+        Resource_Ok_button,
+    };
+
+    /** Specifies the resource to use
+     *
+     *  Adds a resource for a specific id. This allows the
+     *  user program to select e.g. which image to use and
+     *  if it should be loaded from a file or an array.
+     *
+     *  @param id  the identifier
+     *  @param res the resource
+     */
+    void addResource(Resources id, Resource* res);
+
+private:
+    Display* _disp;
+    SWIM_WINDOW_T* _win;
+    void* _fb1;
+    void* _fb2;
+    ImageButton* _btn;
+    Mail<Image::ImageData_t, 2> _mailbox;
+    int _active;
+    int _next;
+    Mutex _allowedToRender;
+    Mutex _imageLoaded;
+    Resource* _resOk;
+
+    void draw();
+};
+
+#endif
+
+