PicoGraphics: Add create_pen_hsv to p4, p8 and rgb332 pens.

Author: Gadgetoid

libraries/pico_graphics/pico_graphics.hpp

@@ -372,6 +372,7 @@ namespace pimoroni {
       void set_thickness(uint t) override {};
       int update_pen(uint8_t i, uint8_t r, uint8_t g, uint8_t b) override;
       int create_pen(uint8_t r, uint8_t g, uint8_t b) override;
+      int create_pen_hsv(float h, float s, float v) override;
       int reset_pen(uint8_t i) override;
 
       void set_pixel(const Point &p) override;
@@ -402,6 +403,7 @@ namespace pimoroni {
       void set_thickness(uint t) override {};
       int update_pen(uint8_t i, uint8_t r, uint8_t g, uint8_t b) override;
       int create_pen(uint8_t r, uint8_t g, uint8_t b) override;
+      int create_pen_hsv(float h, float s, float v) override;
       int reset_pen(uint8_t i) override;
 
       void set_pixel(const Point &p) override;
@@ -423,6 +425,7 @@ namespace pimoroni {
       void set_pen(uint8_t r, uint8_t g, uint8_t b) override;
       void set_thickness(uint t) override {};
       int create_pen(uint8_t r, uint8_t g, uint8_t b) override;
+      int create_pen_hsv(float h, float s, float v) override;
       void set_pixel(const Point &p) override;
       void set_pixel_span(const Point &p, uint l) override;
       void set_pixel_dither(const Point &p, const RGB &c) override;

libraries/pico_graphics/pico_graphics_pen_p4.cpp

@@ -44,6 +44,13 @@ namespace pimoroni {
         }
         return -1;
     }
+    int PicoGraphics_PenP4::create_pen_hsv(float h, float s, float v) {
+        uint8_t r;
+        uint8_t g;
+        uint8_t b;
+        from_hsv(h, s, v, r, g, b);
+        return create_pen(r, g, b);
+    }
     int PicoGraphics_PenP4::reset_pen(uint8_t i) {
         palette[i] = {0, 0, 0};
         used[i] = false;

libraries/pico_graphics/pico_graphics_pen_p8.cpp

@@ -39,6 +39,13 @@ namespace pimoroni {
         }
         return -1;
     }
+    int PicoGraphics_PenP8::create_pen_hsv(float h, float s, float v) {
+        uint8_t r;
+        uint8_t g;
+        uint8_t b;
+        from_hsv(h, s, v, r, g, b);
+        return create_pen(r, g, b);
+    }
     int PicoGraphics_PenP8::reset_pen(uint8_t i) {
         palette[i] = {0, 0, 0};
         used[i] = false;

libraries/pico_graphics/pico_graphics_pen_rgb332.cpp

@@ -18,6 +18,13 @@ namespace pimoroni {
     int PicoGraphics_PenRGB332::create_pen(uint8_t r, uint8_t g, uint8_t b) {
         return rgb_to_rgb332(r, g, b);
     }
+    int PicoGraphics_PenRGB332::create_pen_hsv(float h, float s, float v) {
+        uint8_t r;
+        uint8_t g;
+        uint8_t b;
+        from_hsv(h, s, v, r, g, b);
+        return rgb_to_rgb332(r, g, b);
+    }
     void PicoGraphics_PenRGB332::set_pixel(const Point &p) {
         uint8_t *buf = (uint8_t *)frame_buffer;
         buf[p.y * bounds.w + p.x] = color;