Added color editing widgets

examples/test_window_impl.rs

@@ -40,6 +40,8 @@ struct State {
     vec3f: [f32;3],
     vec2i: [i32;2],
     vec3i: [i32;3],
+    col1: [f32;3],
+    col2: [f32;4],
     auto_resize_state: AutoResizeState,
     file_menu: FileMenuState
 }
@@ -82,6 +84,8 @@ impl Default for State {
             vec3f: [0.10, 0.20, 0.30],
             vec2i: [10, 20],
             vec3i: [10, 20, 30],
+            col1: [1.0, 0.0, 0.2],
+            col2: [0.4, 0.7, 0.0, 0.5],
             auto_resize_state: Default::default(),
             file_menu: Default::default()
         }
@@ -299,6 +303,7 @@ fn show_test_window<'a>(ui: &Ui<'a>, state: &mut State, opened: &mut bool) {
                     ui.text(im_str!("Kanjis: 日本語 (nihongo)"));
                     ui.input_text(im_str!("UTF-8 input"), &mut state.buf).build();
                 });
+
                 ui.separator();
                 ui.label_text(im_str!("label"), im_str!("Value"));
                 ui.input_text(im_str!("input text"), &mut state.text).build();
@@ -306,6 +311,8 @@ fn show_test_window<'a>(ui: &Ui<'a>, state: &mut State, opened: &mut bool) {
                 ui.input_float(im_str!("input float"), &mut state.f0)
                     .step(0.01).step_fast(1.0).build();
                 ui.input_float3(im_str!("input float3"), &mut state.vec3f).build();
+                ui.color_edit3(im_str!("color 1"), &mut state.col1).build();
+                ui.color_edit4(im_str!("color 2"), &mut state.col2).build();
 
                 ui.tree_node(im_str!("Multi-component Widgets")).build(|| {
                     ui.input_float2(im_str!("input float2"), &mut state.vec2f).build();

imgui-sys/src/lib.rs

@@ -792,8 +792,8 @@ extern "C" {
                     data: *mut c_void, items_count: c_int,
                     height_in_items: c_int) -> bool;
     pub fn igColorButton(col: ImVec4, small_height: bool, outline_border: bool) -> bool;
-    pub fn igColorEdit3(label: *const c_char, col: [c_float; 3]) -> bool;
-    pub fn igColorEdit4(label: *const c_char, col: [c_float; 4], show_alpha: bool) -> bool;
+    pub fn igColorEdit3(label: *const c_char, col: *mut f32) -> bool;
+    pub fn igColorEdit4(label: *const c_char, col: *mut f32, show_alpha: bool) -> bool;
     pub fn igColorEditMode(mode: ImGuiColorEditMode);
     pub fn igPlotLines(label: *const c_char,
                        values: *const c_float, values_count: c_int, values_offset: c_int,

src/input.rs

@@ -358,3 +358,56 @@ macro_rules! impl_input_intn {
 impl_input_intn!(InputInt2, 2, igInputInt2);
 impl_input_intn!(InputInt3, 3, igInputInt3);
 impl_input_intn!(InputInt4, 4, igInputInt4);
+
+#[must_use]
+pub struct ColorEdit3<'ui, 'p> {
+    label: ImStr<'p>,
+    value: &'p mut [f32;3],
+    _phantom: PhantomData<&'ui Ui<'ui>>
+}
+
+impl<'ui, 'p> ColorEdit3<'ui, 'p> {
+    pub fn new(label: ImStr<'p>, value: &'p mut [f32;3]) -> Self {
+        ColorEdit3 {
+            label: label,
+            value: value,
+            _phantom: PhantomData
+        }
+    }
+
+    pub fn build(self) -> bool {
+        unsafe {
+            imgui_sys::igColorEdit3(
+                self.label.as_ptr(),
+                self.value.as_mut_ptr())
+        }
+    }
+}
+
+#[must_use]
+pub struct ColorEdit4<'ui, 'p> {
+    label: ImStr<'p>,
+    value: &'p mut [f32;4],
+    show_alpha: bool,
+    _phantom: PhantomData<&'ui Ui<'ui>>
+}
+
+impl<'ui, 'p> ColorEdit4<'ui, 'p> {
+    pub fn new(label: ImStr<'p>, value: &'p mut [f32;4]) -> Self {
+        ColorEdit4 {
+            label: label,
+            value: value,
+            show_alpha: true,
+            _phantom: PhantomData
+        }
+    }
+
+    pub fn build(self) -> bool {
+        unsafe {
+            imgui_sys::igColorEdit4(
+                self.label.as_ptr(),
+                self.value.as_mut_ptr(),
+                self.show_alpha)
+        }
+    }
+}

src/lib.rs

@@ -40,6 +40,7 @@ pub use imgui_sys::{
     ImGuiKey
 };
 pub use input::{
+	ColorEdit3, ColorEdit4,
 	InputFloat, InputFloat2, InputFloat3, InputFloat4,
 	InputInt, InputInt2, InputInt3, InputInt4,
 	InputText
@@ -451,6 +452,12 @@ impl<'ui> Ui<'ui> {
 
 // Widgets: Input
 impl<'ui> Ui<'ui> {
+    pub fn color_edit3<'p>(&self, label: ImStr<'p>, value: &'p mut [f32;3]) -> ColorEdit3<'ui, 'p> {
+        ColorEdit3::new(label, value)
+    }
+    pub fn color_edit4<'p>(&self, label: ImStr<'p>, value: &'p mut [f32;4]) -> ColorEdit4<'ui, 'p> {
+        ColorEdit4::new(label, value)
+    }
     pub fn input_text<'p>(&self, label: ImStr<'p>, buf: &'p mut str) -> InputText<'ui, 'p> {
         InputText::new(label, buf)
     }