colorpicker for raleigh

1 files changed, 55 insertions, 0 deletions

diff --git a/src/user/raleigh/w/colorpicker.cpp b/src/user/raleigh/w/colorpicker.cpp
new file mode 100644
index 0000000..faa720e
--- /dev/null
+++ b/src/user/raleigh/w/colorpicker.cpp
@@ -0,0 +1,55 @@
+#include <raleigh/w/colorpicker.h>
+
+namespace raleigh {
+  colorpicker::colorpicker(_pixel_t default_color, uint8_t resolution)
+    : picked_color(default_color), resolution(resolution), inv_res(256 / resolution) {
+    size = coord(inv_res * 2, inv_res * 2);
+    closest_opaque = this;
+  }
+
+  __attribute__ ((pure))
+  _pixel_t colorpicker::get_picked_color() {
+    return picked_color;
+  }
+
+  void colorpicker::paint(_pixel_t *pixbuf, uint32_t pitch) {
+    _pixel_t *pb_ptr = pixbuf + window_offset.y * pitch + window_offset.x;
+    for (uint16_t b = 0; b < inv_res; ++b)
+      for (uint16_t g = 0; g < inv_res; ++g)
+        pb_ptr[b * pitch + g] = (_pixel_t){.r = picked_color.r, .g = g * resolution, .b = b * resolution};
+    pb_ptr += inv_res;
+    for (uint16_t r = 0; r < inv_res; ++r)
+      for (uint16_t b = 0; b < inv_res; ++b)
+        pb_ptr[r * pitch + b] = (_pixel_t){.r = r * resolution, .g = picked_color.g, .b = b * resolution};
+    pb_ptr += inv_res * (pitch - 1);
+    for (uint16_t g = 0; g < inv_res; ++g)
+      for (uint16_t r = 0; r < inv_res; ++r)
+        pb_ptr[g * pitch + r] = (_pixel_t){.r = r * resolution, .g = g * resolution, .b = picked_color.b};
+    pb_ptr += inv_res;
+    for (uint16_t y = 0; y < inv_res; ++y)
+      for (uint16_t x = 0; x < inv_res; ++x)
+        pb_ptr[y * pitch + x] = picked_color;
+  }
+
+  void colorpicker::handle_click(coord window_coords, enum mouse_packet::mouse_button click_type, bool up) {
+    if (up || (click_type != mouse_packet::LEFT))
+      return;
+    window_coords.x -= window_offset.x;
+    window_coords.y -= window_offset.y;
+    if ((window_coords.x < inv_res) && (window_coords.y < inv_res)) {
+      picked_color.g = window_coords.x * resolution;
+      picked_color.b = window_coords.y * resolution;
+    }
+    else if (window_coords.y < inv_res) {
+      picked_color.b = (window_coords.x - inv_res) * resolution;
+      picked_color.r = window_coords.y * resolution;
+    }
+    else if (window_coords.x < inv_res) {
+      picked_color.r = window_coords.x * resolution;
+      picked_color.g = (window_coords.y - inv_res) * resolution;
+    }
+    w->notify_needs_paint(*this);
+  }
+
+  void colorpicker::notify_has_opaque_parent(widget *parent) {}
+}
\ No newline at end of file