Michael Kuchnik / Mbed 2 deprecated uLCD_Multiscreen

Allows users to seamlessly write to 2 or 3 uLCD screens as if they were one large screen.

Dependencies:   4DGL-uLCD-SE mbed-rtos mbed

VirtualScreen.h@0:15002a72309b, 2015-03-11 (annotated)

Committer:
Mkuchnik3
Date:
Wed Mar 11 21:33:18 2015 +0000
Revision:
0:15002a72309b
First Commit

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Mkuchnik3 0:15002a72309b 1 #ifndef VIRTUALSCREEN_H
Mkuchnik3 0:15002a72309b 2 #define VIRTUALSCREEN_H
Mkuchnik3 0:15002a72309b 3 #include "ScreenUpdater.h"
Mkuchnik3 0:15002a72309b 4 #include "Command.h"
Mkuchnik3 0:15002a72309b 5 #include "DrawPixel.h"
Mkuchnik3 0:15002a72309b 6 #include "ClearScreen.h"
Mkuchnik3 0:15002a72309b 7 #include "BackgroundColor.h"
Mkuchnik3 0:15002a72309b 8 #include "Reset.h"
Mkuchnik3 0:15002a72309b 9 #include "BaudRate.h"
Mkuchnik3 0:15002a72309b 10 #include "Blit.h"
Mkuchnik3 0:15002a72309b 11 #include "mbed.h"
Mkuchnik3 0:15002a72309b 12 /**
Mkuchnik3 0:15002a72309b 13 * Class represents a virtual screen of arbitrary size. To keep simplicity, screen data should be kept
Mkuchnik3 0:15002a72309b 14 * in a pixel format where it can be read by physical devices.
Mkuchnik3 0:15002a72309b 15 */
Mkuchnik3 0:15002a72309b 16 template <class pixelType, class screenType>
Mkuchnik3 0:15002a72309b 17 class VirtualScreen {
Mkuchnik3 0:15002a72309b 18 private:
Mkuchnik3 0:15002a72309b 19 std::vector<screenType*> screens;
Mkuchnik3 0:15002a72309b 20 std::vector<ScreenUpdater*> updaters;
Mkuchnik3 0:15002a72309b 21 int rows;
Mkuchnik3 0:15002a72309b 22 int columns;
Mkuchnik3 0:15002a72309b 23 int screenSize;
Mkuchnik3 0:15002a72309b 24 public:
Mkuchnik3 0:15002a72309b 25 /**
Mkuchnik3 0:15002a72309b 26 * Creates a virtual screen of size rows * columns. This screen is partitioned into different physical
Mkuchnik3 0:15002a72309b 27 * screens. Writing pixels into this screen will transparently write into
Mkuchnik3 0:15002a72309b 28 * these separate screens.
Mkuchnik3 0:15002a72309b 29 *
Mkuchnik3 0:15002a72309b 30 * @param screens A vector of physical screens to be used for drawing on.
Mkuchnik3 0:15002a72309b 31 * @param rows The number of rows in the virtual screen.
Mkuchnik3 0:15002a72309b 32 * @param columns The number of columns in the virtual screen.
Mkuchnik3 0:15002a72309b 33 */
Mkuchnik3 0:15002a72309b 34 VirtualScreen<pixelType, screenType>(std::vector<screenType*> screens, int rows, int columns) {
Mkuchnik3 0:15002a72309b 35 printf("Virtual Screen Booting.");
Mkuchnik3 0:15002a72309b 36 this->screens = screens;
Mkuchnik3 0:15002a72309b 37 for (typename std::vector<screenType*>::iterator scr_iter = screens.begin(); scr_iter != screens.end(); scr_iter++) {
Mkuchnik3 0:15002a72309b 38 ScreenUpdater *updater = new ScreenUpdater(*scr_iter);
Mkuchnik3 0:15002a72309b 39 updaters.push_back(updater);
Mkuchnik3 0:15002a72309b 40 }
Mkuchnik3 0:15002a72309b 41 this->rows = rows;
Mkuchnik3 0:15002a72309b 42 this->columns = columns;
Mkuchnik3 0:15002a72309b 43 this->screenSize = 128;
Mkuchnik3 0:15002a72309b 44 }
Mkuchnik3 0:15002a72309b 45
Mkuchnik3 0:15002a72309b 46 ~VirtualScreen<pixelType, screenType>() {
Mkuchnik3 0:15002a72309b 47 for (typename std::vector<ScreenUpdater*>::iterator updater_iter = updaters.begin(); updater_iter != updaters.end(); updater_iter++) {
Mkuchnik3 0:15002a72309b 48 delete (*updater_iter);
Mkuchnik3 0:15002a72309b 49 }
Mkuchnik3 0:15002a72309b 50 }
Mkuchnik3 0:15002a72309b 51
Mkuchnik3 0:15002a72309b 52 /**
Mkuchnik3 0:15002a72309b 53 * Writes a pixel value into the virtual screen at (row, column) index.
Mkuchnik3 0:15002a72309b 54 *
Mkuchnik3 0:15002a72309b 55 * @param x The row to write the pixel to.
Mkuchnik3 0:15002a72309b 56 * @param y The column to write the pixel to.
Mkuchnik3 0:15002a72309b 57 * @param value The value to write to the pixel.
Mkuchnik3 0:15002a72309b 58 */
Mkuchnik3 0:15002a72309b 59 void setPixel(int x, int y, pixelType value) {
Mkuchnik3 0:15002a72309b 60 //printf("Set pixel on row %d, col %d, val %d\n", x, y, value);
Mkuchnik3 0:15002a72309b 61 int screen_number = x / screenSize;
Mkuchnik3 0:15002a72309b 62 int x_pixel = x % screenSize;
Mkuchnik3 0:15002a72309b 63 //printf("Predicting screen %d, at col %d\n", screen_number, x_pixel);
Mkuchnik3 0:15002a72309b 64 ScreenUpdater* updater = updaters.at(screen_number);
Mkuchnik3 0:15002a72309b 65 //printf("Updater made.\n");
Mkuchnik3 0:15002a72309b 66 Command *command = new DrawPixel(x_pixel, y, value);
Mkuchnik3 0:15002a72309b 67 //printf("Adding command.\n");
Mkuchnik3 0:15002a72309b 68 updater->addCommand(command);
Mkuchnik3 0:15002a72309b 69 }
Mkuchnik3 0:15002a72309b 70 /**
Mkuchnik3 0:15002a72309b 71 * Clears the screens of all attached screens.
Mkuchnik3 0:15002a72309b 72 */
Mkuchnik3 0:15002a72309b 73 void clearScreen() {
Mkuchnik3 0:15002a72309b 74 for (typename std::vector<ScreenUpdater*>::iterator updater_iter = updaters.begin(); updater_iter != updaters.end(); updater_iter++) {
Mkuchnik3 0:15002a72309b 75 Command* command = new ClearScreen();
Mkuchnik3 0:15002a72309b 76 (*updater_iter)->addCommand(command);
Mkuchnik3 0:15002a72309b 77 }
Mkuchnik3 0:15002a72309b 78 }
Mkuchnik3 0:15002a72309b 79 /**
Mkuchnik3 0:15002a72309b 80 * Resets the screens of all attached screens.
Mkuchnik3 0:15002a72309b 81 */
Mkuchnik3 0:15002a72309b 82 void resetScreen() {
Mkuchnik3 0:15002a72309b 83 for (typename std::vector<ScreenUpdater*>::iterator updater_iter = updaters.begin(); updater_iter != updaters.end(); updater_iter++) {
Mkuchnik3 0:15002a72309b 84 Command* command = new Reset();
Mkuchnik3 0:15002a72309b 85 (*updater_iter)->addCommand(command);
Mkuchnik3 0:15002a72309b 86 }
Mkuchnik3 0:15002a72309b 87 }
Mkuchnik3 0:15002a72309b 88 /**
Mkuchnik3 0:15002a72309b 89 * Sets the baud rate for all screens.
Mkuchnik3 0:15002a72309b 90 *
Mkuchnik3 0:15002a72309b 91 * @param rate The desired baud rate.
Mkuchnik3 0:15002a72309b 92 */
Mkuchnik3 0:15002a72309b 93 void setBaudRate(int rate) {
Mkuchnik3 0:15002a72309b 94 for (typename std::vector<ScreenUpdater*>::iterator updater_iter = updaters.begin(); updater_iter != updaters.end(); updater_iter++) {
Mkuchnik3 0:15002a72309b 95 Command* command = new BaudRate(rate);
Mkuchnik3 0:15002a72309b 96 (*updater_iter)->addCommand(command);
Mkuchnik3 0:15002a72309b 97 }
Mkuchnik3 0:15002a72309b 98 }
Mkuchnik3 0:15002a72309b 99 /**
Mkuchnik3 0:15002a72309b 100 * draw a block of pixels
Mkuchnik3 0:15002a72309b 101 */
Mkuchnik3 0:15002a72309b 102 void BLIT(int x, int y, int w, int h, int *colors) {
Mkuchnik3 0:15002a72309b 103 for (typename std::vector<ScreenUpdater*>::iterator updater_iter = updaters.begin(); updater_iter != updaters.end(); updater_iter++) {
Mkuchnik3 0:15002a72309b 104 Command* command = new Blit(x,y,w,h,colors);
Mkuchnik3 0:15002a72309b 105 (*updater_iter)->addCommand(command);
Mkuchnik3 0:15002a72309b 106 }
Mkuchnik3 0:15002a72309b 107 }
Mkuchnik3 0:15002a72309b 108 /**
Mkuchnik3 0:15002a72309b 109 * Sets the background color for all screens.
Mkuchnik3 0:15002a72309b 110 *
Mkuchnik3 0:15002a72309b 111 * @param color The color of the desired background.
Mkuchnik3 0:15002a72309b 112 */
Mkuchnik3 0:15002a72309b 113 void background_color(int color) {
Mkuchnik3 0:15002a72309b 114 for (typename std::vector<ScreenUpdater*>::iterator updater_iter = updaters.begin(); updater_iter != updaters.end(); updater_iter++) {
Mkuchnik3 0:15002a72309b 115 Command* command = new BackgroundColor(color);
Mkuchnik3 0:15002a72309b 116 (*updater_iter)->addCommand(command);
Mkuchnik3 0:15002a72309b 117 }
Mkuchnik3 0:15002a72309b 118 }
Mkuchnik3 0:15002a72309b 119 };
Mkuchnik3 0:15002a72309b 120 #endif