Diff: demoUI/screen/GraphicsDisplay.cpp

Revision:

0:b259fd1a88f5

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/demoUI/screen/GraphicsDisplay.cpp	Mon Mar 18 14:09:48 2019 +0300
@@ -0,0 +1,457 @@
+/* mbed GraphicsDisplay Display Library Base Class
+ * Copyright (c) 2007-2009 sford
+ * Released under the MIT License: http://mbed.org/license/mit
+ */
+ 
+#include "../screen/GraphicsDisplay.h"
+
+#define incx() x++, dxt += d2xt, t += dxt
+#define incy() y--, dyt += d2yt, t += dyt
+
+const unsigned char FONT8x8[97][8] = {
+{0x08,0x08,0x08,0x00,0x00,0x00,0x00,0x00}, // columns, rows, num_bytes_per_char
+{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00}, // space 0x20
+{0x30,0x78,0x78,0x30,0x30,0x00,0x30,0x00}, // !
+{0x6C,0x6C,0x6C,0x00,0x00,0x00,0x00,0x00}, // "
+{0x6C,0x6C,0xFE,0x6C,0xFE,0x6C,0x6C,0x00}, // #
+{0x18,0x3E,0x60,0x3C,0x06,0x7C,0x18,0x00}, // $
+{0x00,0x63,0x66,0x0C,0x18,0x33,0x63,0x00}, // %
+{0x1C,0x36,0x1C,0x3B,0x6E,0x66,0x3B,0x00}, // &
+{0x30,0x30,0x60,0x00,0x00,0x00,0x00,0x00}, // '
+{0x0C,0x18,0x30,0x30,0x30,0x18,0x0C,0x00}, // (
+{0x30,0x18,0x0C,0x0C,0x0C,0x18,0x30,0x00}, // )
+{0x00,0x66,0x3C,0xFF,0x3C,0x66,0x00,0x00}, // *
+{0x00,0x30,0x30,0xFC,0x30,0x30,0x00,0x00}, // +
+{0x00,0x00,0x00,0x00,0x00,0x18,0x18,0x30}, // ,
+{0x00,0x00,0x00,0x7E,0x00,0x00,0x00,0x00}, // -
+{0x00,0x00,0x00,0x00,0x00,0x18,0x18,0x00}, // .
+{0x03,0x06,0x0C,0x18,0x30,0x60,0x40,0x00}, // / (forward slash)
+{0x3E,0x63,0x63,0x6B,0x63,0x63,0x3E,0x00}, // 0 0x30
+{0x18,0x38,0x58,0x18,0x18,0x18,0x7E,0x00}, // 1
+{0x3C,0x66,0x06,0x1C,0x30,0x66,0x7E,0x00}, // 2
+{0x3C,0x66,0x06,0x1C,0x06,0x66,0x3C,0x00}, // 3
+{0x0E,0x1E,0x36,0x66,0x7F,0x06,0x0F,0x00}, // 4
+{0x7E,0x60,0x7C,0x06,0x06,0x66,0x3C,0x00}, // 5
+{0x1C,0x30,0x60,0x7C,0x66,0x66,0x3C,0x00}, // 6
+{0x7E,0x66,0x06,0x0C,0x18,0x18,0x18,0x00}, // 7
+{0x3C,0x66,0x66,0x3C,0x66,0x66,0x3C,0x00}, // 8
+{0x3C,0x66,0x66,0x3E,0x06,0x0C,0x38,0x00}, // 9
+{0x00,0x18,0x18,0x00,0x00,0x18,0x18,0x00}, // :
+{0x00,0x18,0x18,0x00,0x00,0x18,0x18,0x30}, // ;
+{0x0C,0x18,0x30,0x60,0x30,0x18,0x0C,0x00}, // <
+{0x00,0x00,0x7E,0x00,0x00,0x7E,0x00,0x00}, // =
+{0x30,0x18,0x0C,0x06,0x0C,0x18,0x30,0x00}, // >
+{0x3C,0x66,0x06,0x0C,0x18,0x00,0x18,0x00}, // ?
+{0x3E,0x63,0x6F,0x69,0x6F,0x60,0x3E,0x00}, // @ 0x40
+{0x18,0x3C,0x66,0x66,0x7E,0x66,0x66,0x00}, // A
+{0x7E,0x33,0x33,0x3E,0x33,0x33,0x7E,0x00}, // B
+{0x1E,0x33,0x60,0x60,0x60,0x33,0x1E,0x00}, // C
+{0x7C,0x36,0x33,0x33,0x33,0x36,0x7C,0x00}, // D
+{0x7F,0x31,0x34,0x3C,0x34,0x31,0x7F,0x00}, // E
+{0x7F,0x31,0x34,0x3C,0x34,0x30,0x78,0x00}, // F
+{0x1E,0x33,0x60,0x60,0x67,0x33,0x1F,0x00}, // G
+{0x66,0x66,0x66,0x7E,0x66,0x66,0x66,0x00}, // H
+{0x3C,0x18,0x18,0x18,0x18,0x18,0x3C,0x00}, // I
+{0x0F,0x06,0x06,0x06,0x66,0x66,0x3C,0x00}, // J
+{0x73,0x33,0x36,0x3C,0x36,0x33,0x73,0x00}, // K
+{0x78,0x30,0x30,0x30,0x31,0x33,0x7F,0x00}, // L
+{0x63,0x77,0x7F,0x7F,0x6B,0x63,0x63,0x00}, // M
+{0x63,0x73,0x7B,0x6F,0x67,0x63,0x63,0x00}, // N
+{0x3E,0x63,0x63,0x63,0x63,0x63,0x3E,0x00}, // O
+{0x7E,0x33,0x33,0x3E,0x30,0x30,0x78,0x00}, // P 0x50
+{0x3C,0x66,0x66,0x66,0x6E,0x3C,0x0E,0x00}, // Q
+{0x7E,0x33,0x33,0x3E,0x36,0x33,0x73,0x00}, // R
+{0x3C,0x66,0x30,0x18,0x0C,0x66,0x3C,0x00}, // S
+{0x7E,0x5A,0x18,0x18,0x18,0x18,0x3C,0x00}, // T
+{0x66,0x66,0x66,0x66,0x66,0x66,0x7E,0x00}, // U
+{0x66,0x66,0x66,0x66,0x66,0x3C,0x18,0x00}, // V
+{0x63,0x63,0x63,0x6B,0x7F,0x77,0x63,0x00}, // W
+{0x63,0x63,0x36,0x1C,0x1C,0x36,0x63,0x00}, // X
+{0x66,0x66,0x66,0x3C,0x18,0x18,0x3C,0x00}, // Y
+{0x7F,0x63,0x46,0x0C,0x19,0x33,0x7F,0x00}, // Z
+{0x3C,0x30,0x30,0x30,0x30,0x30,0x3C,0x00}, // [
+{0x60,0x30,0x18,0x0C,0x06,0x03,0x01,0x00}, // \ (back slash)
+{0x3C,0x0C,0x0C,0x0C,0x0C,0x0C,0x3C,0x00}, // ]
+{0x08,0x1C,0x36,0x63,0x00,0x00,0x00,0x00}, // ^
+{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xFF}, // _
+{0x18,0x18,0x0C,0x00,0x00,0x00,0x00,0x00}, // ` 0x60
+{0x00,0x00,0x3C,0x06,0x3E,0x66,0x3B,0x00}, // a
+{0x70,0x30,0x3E,0x33,0x33,0x33,0x6E,0x00}, // b
+{0x00,0x00,0x3C,0x66,0x60,0x66,0x3C,0x00}, // c
+{0x0E,0x06,0x3E,0x66,0x66,0x66,0x3B,0x00}, // d
+{0x00,0x00,0x3C,0x66,0x7E,0x60,0x3C,0x00}, // e
+{0x1C,0x36,0x30,0x78,0x30,0x30,0x78,0x00}, // f
+{0x00,0x00,0x3B,0x66,0x66,0x3E,0x06,0x7C}, // g
+{0x70,0x30,0x36,0x3B,0x33,0x33,0x73,0x00}, // h
+{0x18,0x00,0x38,0x18,0x18,0x18,0x3C,0x00}, // i
+{0x06,0x00,0x06,0x06,0x06,0x66,0x66,0x3C}, // j
+{0x70,0x30,0x33,0x36,0x3C,0x36,0x73,0x00}, // k
+{0x38,0x18,0x18,0x18,0x18,0x18,0x3C,0x00}, // l
+{0x00,0x00,0x66,0x7F,0x7F,0x6B,0x63,0x00}, // m
+{0x00,0x00,0x7C,0x66,0x66,0x66,0x66,0x00}, // n
+{0x00,0x00,0x3C,0x66,0x66,0x66,0x3C,0x00}, // o
+{0x00,0x00,0x6E,0x33,0x33,0x3E,0x30,0x78}, // p
+{0x00,0x00,0x3B,0x66,0x66,0x3E,0x06,0x0F}, // q
+{0x00,0x00,0x6E,0x3B,0x33,0x30,0x78,0x00}, // r
+{0x00,0x00,0x3E,0x60,0x3C,0x06,0x7C,0x00}, // s
+{0x08,0x18,0x3E,0x18,0x18,0x1A,0x0C,0x00}, // t
+{0x00,0x00,0x66,0x66,0x66,0x66,0x3B,0x00}, // u
+{0x00,0x00,0x66,0x66,0x66,0x3C,0x18,0x00}, // v
+{0x00,0x00,0x63,0x6B,0x7F,0x7F,0x36,0x00}, // w
+{0x00,0x00,0x63,0x36,0x1C,0x36,0x63,0x00}, // x
+{0x00,0x00,0x66,0x66,0x66,0x3E,0x06,0x7C}, // y
+{0x00,0x00,0x7E,0x4C,0x18,0x32,0x7E,0x00}, // z
+{0x0E,0x18,0x18,0x70,0x18,0x18,0x0E,0x00}, // {
+{0x0C,0x0C,0x0C,0x00,0x0C,0x0C,0x0C,0x00}, // |
+{0x70,0x18,0x18,0x0E,0x18,0x18,0x70,0x00}, // }
+{0x3B,0x6E,0x00,0x00,0x00,0x00,0x00,0x00}, // ~
+{0x1C,0x36,0x36,0x1C,0x00,0x00,0x00,0x00}}; // DEL
+    
+GraphicsDisplay::GraphicsDisplay(const char *name):TextDisplay(name) {
+    foreground((uint16_t)Black);
+    background((uint16_t)White);
+    // current pixel location
+	_x = 0;
+	_y = 0;
+	// window settings
+	_x1 = 0;
+	_x2 = 0;
+	_y1 = 0;
+	_y2 = 0;
+}
+    
+void GraphicsDisplay::character(int column, int row, int value) { 
+    if(externalfont){ // send external font
+        unsigned int hor,vert,offset,bpl,j,i,b;
+        const unsigned char* sign;
+        unsigned char z,w;
+        if ((value < 31) || (value > 127)) return;   // test char range
+        // read font parameter from start of array
+        offset = font[0];                    // bytes / char
+        hor = font[1];                       // get hor size of font
+        vert = font[2];                      // get vert size of font
+        bpl = font[3];                       // bytes per line
+        if (char_x + hor > width()) {
+            char_x = 0;
+            char_y = char_y + vert;
+            if (char_y >= height() - font[2]) {
+                char_y = 0;
+            }
+        }     
+        window(char_x, char_y,hor,vert); // char box
+        sign = &font[((value -32) * offset) + 4]; // start of char bitmap
+        w = sign[0];                          // width of actual char
+        for (j=0; j<vert; j++) {  //  vert line
+            for (i=0; i<hor; i++) {   //  horz line
+                z =  sign[bpl * i + ((j & 0xF8) >> 3)+1];
+                b = 1 << (j & 0x07);
+                if (( z & b ) == 0x00) {               
+                    putp(_foreground);              
+                } 
+                else {                     
+                    putp(_background);                                
+                }
+            }
+        }
+        if ((w + 2) < hor) {                   // x offset to next char
+            char_x += w + 2;
+            }
+            else char_x += hor;
+    }   
+    // send default font            
+    else {
+        blitbit(column * 8, row * 8, 8, 8, (char*)&(FONT8x8[value - 0x1F][0]));
+    }
+}
+
+void GraphicsDisplay::window(int x, int y, int w, int h) {
+    // current pixel location
+    _x = x;
+    _y = y;
+    // window settings
+    _x1 = x;
+    _x2 = x + w - 1;
+    _y1 = y;
+    _y2 = y + h - 1;
+}
+    
+void GraphicsDisplay::putp(int colour) {
+    // put pixel at current pixel location
+    pixel(_x, _y, colour);
+    // update pixel location based on window settings
+    _x++;
+    if(_x > _x2) {
+        _x = _x1;
+        _y++;
+        if(_y > _y2) {
+            _y = _y1;
+        }
+    }
+}
+
+void GraphicsDisplay::rect(int x0, int y0, int x1, int y1, int color) {
+    if (x1 > x0) hline(x0,x1,y0,color);
+    else  hline(x1,x0,y0,color);
+    if (y1 > y0) vline(x0,y0,y1,color);
+    else vline(x0,y1,y0,color);
+    if (x1 > x0) hline(x0,x1,y1,color);
+    else  hline(x1,x0,y1,color);
+    if (y1 > y0) vline(x1,y0,y1,color);
+    else vline(x1,y1,y0,color);
+    return;
+}
+ 
+void GraphicsDisplay::fillrect(int x0, int y0, int w, int h, int colour) {
+    unsigned long int index=0;
+    if (w < 0) {
+        x0 = x0 + w;
+        w = -w;
+    }
+    if (h < 0) {
+        y0 = y0 + h;
+        h = -h;
+    }
+    window(x0,y0,w,h);
+    int num = h*w;
+    for( index = 0; index<num; index++ ) {
+       putp(colour); 
+    }
+    return;
+}
+
+void GraphicsDisplay::fill(int x, int y, int w, int h, int colour) { 
+    fillrect(x, y, w, h, colour);
+}
+
+void GraphicsDisplay::circle(int x, int y, int r,int colour){
+	int ce = -r;
+	int cx = r;
+	int cy = 0;
+	while(cx >= cy){
+		pixel(x+cx,y+cy,colour);
+		pixel(x-cx,y-cy,colour);
+		pixel(x-cx,y+cy,colour);
+		pixel(x+cx,y-cy,colour);
+		pixel(x+cy,y+cx,colour);
+		pixel(x-cy,y+cx,colour);
+		pixel(x-cy,y-cx,colour);
+		pixel(x+cy,y-cx,colour);
+		ce += 2*cy++ + 1;
+		if(ce >= 0){
+			ce -= 2*cx---1;	
+		}
+		
+	}
+
+}
+
+// To draw circle set a and b to the same values
+void GraphicsDisplay::ellipse(int xc, int yc, int a, int b, unsigned int colour)
+{
+    /* e(x,y) = b^2*x^2 + a^2*y^2 - a^2*b^2 */
+    int x = 0, y = b;
+    long a2 = (long)a*a, b2 = (long)b*b;
+    long crit1 = -(a2/4 + a%2 + b2);
+    long crit2 = -(b2/4 + b%2 + a2);
+    long crit3 = -(b2/4 + b%2);
+    long t = -a2*y;                         // e(x+1/2,y-1/2) - (a^2+b^2)/4
+    long dxt = 2*b2*x, dyt = -2*a2*y;
+    long d2xt = 2*b2, d2yt = 2*a2;
+ 
+    while (y>=0 && x<=a) {
+        pixel(xc+x, yc+y, colour);
+        if (x!=0 || y!=0)
+            pixel(xc-x, yc-y, colour);
+        if (x!=0 && y!=0) {
+            pixel(xc+x, yc-y, colour);
+            pixel(xc-x, yc+y, colour);
+        }
+        if (t + b2*x <= crit1 ||            // e(x+1,y-1/2) <= 0
+                t + a2*y <= crit3)          // e(x+1/2,y) <= 0
+            incx();
+        else if (t - a2*y > crit2)          // e(x+1/2,y-1) > 0
+            incy();
+        else {
+            incx();
+            incy();
+        }
+    }
+}
+// To draw circle set a and b to the same values
+void GraphicsDisplay::fillellipse(int xc, int yc, int a, int b, unsigned int colour)
+{
+    /* e(x,y) = b^2*x^2 + a^2*y^2 - a^2*b^2 */
+    int x = 0, y = b;
+    int rx = x, ry = y;
+    unsigned int width = 1;
+    unsigned int height = 1;
+    long a2 = (long)a*a, b2 = (long)b*b;
+    long crit1 = -(a2/4 + a%2 + b2);
+    long crit2 = -(b2/4 + b%2 + a2);
+    long crit3 = -(b2/4 + b%2);
+    long t = -a2*y;                         // e(x+1/2,y-1/2) - (a^2+b^2)/4
+    long dxt = 2*b2*x, dyt = -2*a2*y;
+    long d2xt = 2*b2, d2yt = 2*a2;
+    if (b == 0) {
+        fillrect(xc-a, yc, 2*a+1, 1, colour);
+        return;
+    }
+    while (y>=0 && x<=a) {
+        if (t + b2*x <= crit1 ||            // e(x+1,y-1/2) <= 0
+                t + a2*y <= crit3) {        // e(x+1/2,y) <= 0
+            if (height == 1)
+                ;                           // draw nothing
+            else if (ry*2+1 > (height-1)*2) {
+                fillrect(xc-rx, yc-ry, width, height-1, colour);
+                fillrect(xc-rx, yc+ry+1, width, 1-height, colour);
+                ry -= height-1;
+                height = 1;
+            } else {
+                fillrect(xc-rx, yc-ry, width, ry*2+1, colour);
+                ry -= ry;
+                height = 1;
+            }
+            incx();
+            rx++;
+            width += 2;
+        } else if (t - a2*y > crit2) {      // e(x+1/2,y-1) > 0
+            incy();
+            height++;
+        } else {
+            if (ry*2+1 > height*2) {
+                fillrect(xc-rx, yc-ry, width, height, colour);
+                fillrect(xc-rx, yc+ry+1, width, -height, colour);
+            } else {
+                fillrect(xc-rx, yc-ry, width, ry*2+1, colour);
+            }
+            incx();
+            incy();
+            rx++;
+            width += 2;
+            ry -= height;
+            height = 1;
+        }
+    }
+    if (ry > height) {
+        fillrect(xc-rx, yc-ry, width, height, colour);
+        fillrect(xc-rx, yc+ry+1, width, -height, colour);
+    } else {
+        fillrect(xc-rx, yc-ry, width, ry*2+1, colour);
+    }
+}
+ 
+ 
+void GraphicsDisplay::line(int x0, int y0, int x1, int y1, int colour) {
+    //window(x0, y, w, h);
+    int   dx = 0, dy = 0;
+    int   dx_sym = 0, dy_sym = 0;
+    int   dx_x2 = 0, dy_x2 = 0;
+    int   di = 0;
+    dx = x1-x0;
+    dy = y1-y0;
+ 
+    if (dx == 0) {        /* vertical line */
+        if (y1 > y0) vline(x0,y0,y1,colour);
+        else vline(x0,y1,y0,colour);
+        return;
+    }
+    if (dx > 0) {
+        dx_sym = 1;
+    } else {
+        dx_sym = -1;
+    }
+    if (dy == 0) {        /* horizontal line */
+        if (x1 > x0) hline(x0,x1,y0,colour);
+        else  hline(x1,x0,y0,colour);
+        return;
+    }
+    if (dy > 0) {
+        dy_sym = 1;
+    } else {
+        dy_sym = -1;
+    }
+    dx = dx_sym*dx;
+    dy = dy_sym*dy;
+    dx_x2 = dx*2;
+    dy_x2 = dy*2;
+    if (dx >= dy) {
+        di = dy_x2 - dx;
+        while (x0 != x1) {
+ 
+            pixel(x0, y0, colour);
+            x0 += dx_sym;
+            if (di<0) {
+                di += dy_x2;
+            } else {
+                di += dy_x2 - dx_x2;
+                y0 += dy_sym;
+            }
+        }
+        pixel(x0, y0, colour);
+    } else {
+        di = dx_x2 - dy;
+        while (y0 != y1) {
+            pixel(x0, y0, colour);
+            y0 += dy_sym;
+            if (di < 0) {
+                di += dx_x2;
+            } else {
+                di += dx_x2 - dy_x2;
+                x0 += dx_sym;
+            }
+        }
+        pixel(x0, y0, colour);
+    }
+    return;
+}
+ 
+void GraphicsDisplay::hline(int x0, int x1, int y, int colour) {
+    int w;
+    w = x1 - x0 + 1;
+    window(x0,y,w,1);
+    for (int x=0; x<w; x++) {
+        putp(colour);
+    }
+    return;
+}
+ 
+void GraphicsDisplay::vline(int x, int y0, int y1, int colour) {
+    int h;
+    h = y1 - y0 + 1;
+    window(x,y0,1,h);
+    for (int y=0; y<h; y++) {
+        putp(colour);
+    }
+    return;
+}
+
+void GraphicsDisplay::cls() {
+    fill(0, 0, width(), height(), _background);
+}
+    
+void GraphicsDisplay::blit(int x, int y, int w, int h, const int *colour) { 
+    window(x, y, w, h);
+    for(int i=0; i<w*h; i++) {
+        putp(colour[i]);
+    }
+}
+    
+void GraphicsDisplay::blitbit(int x, int y, int w, int h, const char* colour) {
+    window(x, y, w, h);
+    for(int i = 0; i < w*h; i++) {
+        char byte = colour[i >> 3];
+        int offset = i & 0x7;
+        int c = ((byte << (offset)) & 0x80) ? _foreground : _background;
+        putp(c);
+    }
+}
+    
+int GraphicsDisplay::columns() { 
+    return width() / 8; 
+}
+
+int GraphicsDisplay::rows() { 
+    return height() / 8; 
+}
+
+