EmbeddedArtists AB / ewgui

Wrapper classes for the emwin library

Dependents:   app_emwin1 app_emwin2_pos lpc4088_ebb_gui_emwin

EwGui.h@1:0b16165ada7c, 2014-04-14 (annotated)

Committer:
embeddedartists
Date:
Mon Apr 14 08:38:33 2014 +0000
Revision:
1:0b16165ada7c
Parent:
0:316c181e9b65 
Initialize uninitialized touchState in EwGui

Who changed what in which revision?

UserRevisionLine numberNew contents of line
embeddedartists 0:316c181e9b65 1
embeddedartists 0:316c181e9b65 2 #ifndef EWGUI_H
embeddedartists 0:316c181e9b65 3 #define EWGUI_H
embeddedartists 0:316c181e9b65 4
embeddedartists 0:316c181e9b65 5 #include "stdint.h"
embeddedartists 0:316c181e9b65 6 #include "GUI.h"
embeddedartists 0:316c181e9b65 7
embeddedartists 0:316c181e9b65 8 /**
embeddedartists 0:316c181e9b65 9 * This is the main class to get Segger's emwin library up-and-running
embeddedartists 0:316c181e9b65 10 * with the mbed online tools.
embeddedartists 0:316c181e9b65 11 *
embeddedartists 0:316c181e9b65 12 * This class handles the porting/integration layer in emwin and the virtual
embeddedartists 0:316c181e9b65 13 * methods must be implemented in a sub-class to handle such things as
embeddedartists 0:316c181e9b65 14 * memory allocation, framebuffer association, display size, and touch
embeddedartists 0:316c181e9b65 15 * events.
embeddedartists 0:316c181e9b65 16 *
embeddedartists 0:316c181e9b65 17 */
embeddedartists 0:316c181e9b65 18 class EwGui {
embeddedartists 0:316c181e9b65 19 public:
embeddedartists 0:316c181e9b65 20
embeddedartists 0:316c181e9b65 21
embeddedartists 0:316c181e9b65 22 /**
embeddedartists 0:316c181e9b65 23 * Returns the address to a memory block which may be used by emwin
embeddedartists 0:316c181e9b65 24 * to allocate objects. The memory block returned will be given to emwin
embeddedartists 0:316c181e9b65 25 * by calling GUI_ALLOC_AssignMemory.
embeddedartists 0:316c181e9b65 26 */
embeddedartists 0:316c181e9b65 27 virtual void* getMemoryBlockAddress() = 0;
embeddedartists 0:316c181e9b65 28
embeddedartists 0:316c181e9b65 29 /**
embeddedartists 0:316c181e9b65 30 * Returns the size of the memory block returned by
embeddedartists 0:316c181e9b65 31 * getMemoryBlockAddress().
embeddedartists 0:316c181e9b65 32 */
embeddedartists 0:316c181e9b65 33 virtual uint32_t getMemoryBlockSize() = 0;
embeddedartists 0:316c181e9b65 34
embeddedartists 0:316c181e9b65 35 /**
embeddedartists 0:316c181e9b65 36 * Returns the width of the display.
embeddedartists 0:316c181e9b65 37 */
embeddedartists 0:316c181e9b65 38 virtual uint32_t getDisplayWidth() = 0;
embeddedartists 0:316c181e9b65 39
embeddedartists 0:316c181e9b65 40 /**
embeddedartists 0:316c181e9b65 41 * Returns the height of the display.
embeddedartists 0:316c181e9b65 42 */
embeddedartists 0:316c181e9b65 43 virtual uint32_t getDisplayHeight() = 0;
embeddedartists 0:316c181e9b65 44
embeddedartists 0:316c181e9b65 45 /**
embeddedartists 0:316c181e9b65 46 * Returns the address of the framebuffer (video RAM). This address will
embeddedartists 0:316c181e9b65 47 * be given to emwin by a call to LCD_SetVRAMAddrEx.
embeddedartists 0:316c181e9b65 48 */
embeddedartists 0:316c181e9b65 49 virtual void* getFrameBufferAddress() = 0;
embeddedartists 0:316c181e9b65 50
embeddedartists 0:316c181e9b65 51 /**
embeddedartists 0:316c181e9b65 52 * Get touch coordinates (if the display has a touch panel)
embeddedartists 0:316c181e9b65 53 *
embeddedartists 0:316c181e9b65 54 * @param x the x coordinate
embeddedartists 0:316c181e9b65 55 * @param y the y coordinate
embeddedartists 0:316c181e9b65 56 * $param z the z coordinate. If the value is > 0 the panel is touched.
embeddedartists 0:316c181e9b65 57 */
embeddedartists 0:316c181e9b65 58 virtual void getTouchValues(int32_t* x, int32_t* y, int32_t* z) = 0;
embeddedartists 0:316c181e9b65 59
embeddedartists 0:316c181e9b65 60 /**
embeddedartists 0:316c181e9b65 61 * Must be called regularly for emwin to work properly
embeddedartists 0:316c181e9b65 62 */
embeddedartists 0:316c181e9b65 63 void exec();
embeddedartists 0:316c181e9b65 64
embeddedartists 0:316c181e9b65 65 /**
embeddedartists 0:316c181e9b65 66 * Must be called regularly for touch events to be retrieved
embeddedartists 0:316c181e9b65 67 */
embeddedartists 0:316c181e9b65 68 void execTouch();
embeddedartists 0:316c181e9b65 69
embeddedartists 0:316c181e9b65 70 /**
embeddedartists 0:316c181e9b65 71 * Returns the x coordinate of the latest touch event
embeddedartists 0:316c181e9b65 72 */
embeddedartists 0:316c181e9b65 73 int32_t getTouchX() {return _touchX;}
embeddedartists 0:316c181e9b65 74
embeddedartists 0:316c181e9b65 75 /**
embeddedartists 0:316c181e9b65 76 * Returns the y coordinate of the latest touch event
embeddedartists 0:316c181e9b65 77 */
embeddedartists 0:316c181e9b65 78 int32_t getTouchY() {return _touchY;}
embeddedartists 0:316c181e9b65 79
embeddedartists 0:316c181e9b65 80 protected:
embeddedartists 0:316c181e9b65 81 EwGui();
embeddedartists 0:316c181e9b65 82 void init();
embeddedartists 0:316c181e9b65 83
embeddedartists 0:316c181e9b65 84 private:
embeddedartists 0:316c181e9b65 85
embeddedartists 0:316c181e9b65 86 bool _initialized;
embeddedartists 0:316c181e9b65 87 bool _penIsDown;
embeddedartists 0:316c181e9b65 88 int32_t _touchX;
embeddedartists 0:316c181e9b65 89 int32_t _touchY;
embeddedartists 0:316c181e9b65 90 GUI_PID_STATE _touchState;
embeddedartists 0:316c181e9b65 91
embeddedartists 0:316c181e9b65 92 };
embeddedartists 0:316c181e9b65 93
embeddedartists 0:316c181e9b65 94 #endif