gettable/settable GuiStyle colors

README.md

@@ -84,7 +84,7 @@ commands:
 
 
 # Development tips
-We have tried hard to make the process of bootstraping this project as simple
+We have tried hard to make the process of bootstrapping this project as simple
 as possible.
 
 In order to build and install project locally ,ake sure you have created and

imgui/core.pyx

@@ -529,6 +529,31 @@ cdef class _DrawList(object):
             for idx in xrange(self._ptr.CmdBuffer.Size)
         ]
 
+cdef class _Colors(object):
+    cdef GuiStyle _style
+
+    def __cinit__(self):
+        self._style = None
+
+    def __init__(self, GuiStyle gui_style):
+        self._style = gui_style
+
+    cdef inline _check_color(self, cimgui.ImGuiCol variable):
+        if not (0 <= variable < enums.ImGuiCol_COUNT):
+            raise ValueError("Unknown style variable: {}".format(variable))
+
+    def __getitem__(self, cimgui.ImGuiCol variable):
+        self._check_color(variable)
+        self._style._check_ptr()
+        cdef int ix = variable
+        return _cast_ImVec4_tuple(self._style._ptr.Colors[ix])
+
+    def __setitem__(self, cimgui.ImGuiCol variable, value):
+        self._check_color(variable)
+        self._style._check_ptr()
+        cdef int ix = variable
+        self._style._ptr.Colors[ix] = _cast_tuple_ImVec4(value)
+
 
 cdef class GuiStyle(object):
     """
@@ -537,10 +562,12 @@ cdef class GuiStyle(object):
     """
     cdef cimgui.ImGuiStyle* _ptr
     cdef bool _owner
+    cdef _Colors _colors
 
     def __cinit__(self):
         self._ptr = NULL
         self._owner = False
+        self._colors = None
 
     def __dealloc__(self):
         if self._owner:
@@ -566,13 +593,15 @@ cdef class GuiStyle(object):
     cdef GuiStyle from_ref(cimgui.ImGuiStyle& ref):
         cdef GuiStyle instance = GuiStyle()
         instance._ptr = &ref
+        instance._colors = _Colors(instance)
         return instance
 
     @staticmethod
     cdef GuiStyle _create():
         cdef cimgui.ImGuiStyle* _ptr = new cimgui.ImGuiStyle()
         cdef GuiStyle instance = GuiStyle.from_ref(deref(_ptr))
         instance._owner = True
+        instance._colors = _Colors(instance)
         return instance
 
     @property
@@ -871,13 +900,35 @@ cdef class GuiStyle(object):
         self._ptr.CurveTessellationTol = value
 
     def color(self, cimgui.ImGuiCol variable):
-        if not (0 <= variable < enums.ImGuiStyleVar_Count_):
+        if not (0 <= variable < enums.ImGuiCol_COUNT):
             raise ValueError("Unknown style variable: {}".format(variable))
 
         self._check_ptr()
         cdef int ix = variable
         return _cast_ImVec4_tuple(self._ptr.Colors[ix])
 
+    @property
+    def colors(self):
+        """Retrieve and modify style colors through list-like interface.
+
+        .. visual-example::
+            :width: 700
+            :height: 500
+            :auto_layout:
+
+            style = imgui.get_style()
+            imgui.begin("Color window")
+            imgui.columns(4)
+            for color in range(0, imgui.COLOR_COUNT):
+                imgui.text("Color: {}".format(color))
+                imgui.color_button("color#{}".format(color), *style.colors[color])
+                imgui.next_column()
+
+            imgui.end()
+        """
+        self._check_ptr()
+        return self._colors
+
 
 cdef class _DrawData(object):
     cdef cimgui.ImDrawData* _ptr

tests/test_gui_style_initialization.py

@@ -18,6 +18,8 @@ def context():
 
 @pytest.fixture(params=IMGUI_DATA_DESCRIPTORS)
 def data_descriptor(request):
+    if request.param == "colors":
+        pytest.skip("'{}' isn't a writable property".format(request.param))
     return request.param