Example/test for ST7789 displays

examples/CMakeLists.txt

@@ -6,3 +6,4 @@ add_subdirectory(pico_explorer)
 add_subdirectory(pico_rgb_keypad)
 add_subdirectory(pico_rtc_display)
 add_subdirectory(pico_tof_display)
+add_subdirectory(st7789)

examples/st7789/CMakeLists.txt

@@ -0,0 +1,10 @@
+add_executable(
+  st7789_demo
+  demo.cpp
+)
+
+# Pull in pico libraries that we need
+target_link_libraries(st7789_demo pico_stdlib hardware_spi st7789 pico_graphics)
+
+# create map/bin/hex file etc.
+pico_add_extra_outputs(st7789_demo)

examples/st7789/demo.cpp

@@ -0,0 +1,59 @@
+#include <string.h>
+#include <math.h>
+#include <vector>
+#include <cstdlib>
+
+#include "st7789.hpp"
+#include "pico_graphics.hpp"
+
+#define CS 17
+#define DC 16
+#define SCK 18
+#define MOSI 19
+#define MISO -1
+
+using namespace pimoroni;
+
+class PicoDisplay : public PicoGraphics {
+  public:
+    static const int WIDTH = 240;
+    static const int HEIGHT = 240;
+
+    uint16_t *__fb;
+  private:
+    ST7789 screen;
+
+  public:
+    PicoDisplay(uint16_t *buf) : PicoGraphics(WIDTH, HEIGHT, buf),
+    screen(WIDTH, HEIGHT, buf,
+            spi0,
+            CS, DC, SCK, MOSI, MISO) {
+        __fb = buf;
+    }
+
+    void init() {
+        screen.init(true, true);
+        //screen.flip();
+    };
+    void update() {
+        screen.update();
+    }
+};
+
+
+uint16_t buffer[PicoDisplay::WIDTH * PicoDisplay::HEIGHT];
+PicoDisplay display(buffer);
+
+int main() {
+    display.init();
+
+    while(1) {
+        display.set_pen(0, 0, 0);
+        display.clear();
+        display.set_pen(255, 0, 0);
+        display.circle(Point(60, 120), 60);
+        display.set_pen(255, 255, 255);
+        display.text("Hello", Point(10, 10), 220, 4);
+        display.update();
+    }
+}

libraries/pico_graphics/CMakeLists.txt

@@ -1 +1 @@
-add_library(pico_graphics types.cpp font_data.cpp pico_graphics.cpp)
+include(pico_graphics.cmake)

libraries/pico_graphics/pico_graphics.cmake

@@ -1,4 +1,6 @@
 add_library(pico_graphics 
     ${CMAKE_CURRENT_LIST_DIR}/types.cpp
     ${CMAKE_CURRENT_LIST_DIR}/font_data.cpp
-    ${CMAKE_CURRENT_LIST_DIR}/pico_graphics.cpp)
+    ${CMAKE_CURRENT_LIST_DIR}/pico_graphics.cpp)
+
+target_include_directories(pico_graphics INTERFACE ${CMAKE_CURRENT_LIST_DIR})