82 lines
1.7 KiB
C++
82 lines
1.7 KiB
C++
#include "pxt.h"
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#include "ev3.h"
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/**
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* Drawing modes
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*/
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enum class Draw {
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Normal = 0, // set pixels to black, no fill
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Clear = DRAW_OPT_CLEAR_PIXELS,
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Xor = DRAW_OPT_LOGICAL_XOR,
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Fill = DRAW_OPT_FILL_SHAPE,
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};
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enum class ScreenFont {
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Normal = FONTTYPE_NORMAL,
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Small = FONTTYPE_SMALL,
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Large = FONTTYPE_LARGE,
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Tiny = FONTTYPE_TINY,
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};
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#define XX(v) ((uint32_t)(v)&0xffff)
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#define YY(v) ((uint32_t)(v) >> 16)
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// We only support up to 4 arguments for C++ functions - need to pack them on the TS side
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namespace screen {
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extern "C" {
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void DisplaySetPixel(byte X, byte Y);
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void DisplayClrPixel(byte X, byte Y);
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void DisplayXorPixel(byte X, byte Y);
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}
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void pokeScreen() {
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DisplayXorPixel(0, 0);
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DisplayXorPixel(0, 0);
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}
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//%
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void _drawLine(uint32_t p0, uint32_t p1, Draw mode) {
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DMESG("line %x %x %x", p0, p1, mode);
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LineOutEx(XX(p0), YY(p0), XX(p1), YY(p1), (uint32_t)mode);
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}
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//%
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void _drawRect(uint32_t p0, uint32_t p1, Draw mode) {
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DMESG("rect %x %x %x", p0, p1, mode);
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RectOutEx(XX(p0), YY(p0), XX(p1), YY(p1), (uint32_t)mode);
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}
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//%
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void _drawEllipse(uint32_t p0, uint32_t p1, Draw mode) {
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DMESG("ellip %x %x %x", p0, p1, mode);
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EllipseOutEx(XX(p0), YY(p0), XX(p1), YY(p1), (uint32_t)mode);
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}
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/** Draw text. */
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//% mode.defl=0
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void drawText(int x, int y, String text, Draw mode) {
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LcdText((int)mode & (int)Draw::Clear ? 0 : 1, x, y, text->data);
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}
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/** Clear screen and reset font to normal. */
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//%
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void clear() {
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LcdClearDisplay();
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}
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/** Scroll screen vertically. */
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//%
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void scroll(int v) {
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LcdScroll(v);
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pokeScreen(); // missing in ev3-api
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//LcdUpdate();
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}
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/** Set font for drawText() */
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//%
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void setFont(ScreenFont font) {
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LcdSelectFont((uint8_t)font);
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}
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}
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