Untangle headers

Thanks, clang -fmodules.

Signed-off-by: Yuxuan Shui <yshuiv7@gmail.com>

src/win_defs.h

@@ -0,0 +1,74 @@
+#pragma once
+
+typedef enum {
+	WINTYPE_UNKNOWN,
+	WINTYPE_DESKTOP,
+	WINTYPE_DOCK,
+	WINTYPE_TOOLBAR,
+	WINTYPE_MENU,
+	WINTYPE_UTILITY,
+	WINTYPE_SPLASH,
+	WINTYPE_DIALOG,
+	WINTYPE_NORMAL,
+	WINTYPE_DROPDOWN_MENU,
+	WINTYPE_POPUP_MENU,
+	WINTYPE_TOOLTIP,
+	WINTYPE_NOTIFICATION,
+	WINTYPE_COMBO,
+	WINTYPE_DND,
+	NUM_WINTYPES
+} wintype_t;
+
+/// Enumeration type of window painting mode.
+typedef enum {
+	WMODE_TRANS,              // The window body is (potentially) transparent
+	WMODE_FRAME_TRANS,        // The window body is opaque, but the frame is not
+	WMODE_SOLID,              // The window is opaque including the frame
+} winmode_t;
+
+/// Transition table:
+/// (DESTROYED is when the win struct is destroyed and freed)
+/// ('o' means in all other cases)
+/// (Window is created in the UNMAPPED state)
+/// +-------------+---------+----------+-------+-------+--------+--------+---------+
+/// |             |UNMAPPING|DESTROYING|MAPPING|FADING |UNMAPPED| MAPPED |DESTROYED|
+/// +-------------+---------+----------+-------+-------+--------+--------+---------+
+/// |  UNMAPPING  |    o    |  Window  |Window |  -    | Fading |  -     |    -    |
+/// |             |         |destroyed |mapped |       |finished|        |         |
+/// +-------------+---------+----------+-------+-------+--------+--------+---------+
+/// |  DESTROYING |    -    |    o     |   -   |  -    |   -    |  -     | Fading  |
+/// |             |         |          |       |       |        |        |finished |
+/// +-------------+---------+----------+-------+-------+--------+--------+---------+
+/// |   MAPPING   | Window  |  Window  |   o   |  -    |   -    | Fading |    -    |
+/// |             |unmapped |destroyed |       |       |        |finished|         |
+/// +-------------+---------+----------+-------+-------+--------+--------+---------+
+/// |    FADING   | Window  |  Window  |   -   |  o    |   -    | Fading |    -    |
+/// |             |unmapped |destroyed |       |       |        |finished|         |
+/// +-------------+---------+----------+-------+-------+--------+--------+---------+
+/// |   UNMAPPED  |    -    |    -     |Window |  -    |   o    |   -    | Window  |
+/// |             |         |          |mapped |       |        |        |destroyed|
+/// +-------------+---------+----------+-------+-------+--------+--------+---------+
+/// |    MAPPED   | Window  |  Window  |   -   |Opacity|   -    |   o    |    -    |
+/// |             |unmapped |destroyed |       |change |        |        |         |
+/// +-------------+---------+----------+-------+-------+--------+--------+---------+
+typedef enum {
+	// The window is being faded out because it's unmapped.
+	WSTATE_UNMAPPING,
+	// The window is being faded out because it's destroyed,
+	WSTATE_DESTROYING,
+	// The window is being faded in
+	WSTATE_MAPPING,
+	// Window opacity is not at the target level
+	WSTATE_FADING,
+	// The window is mapped, no fading is in progress.
+	WSTATE_MAPPED,
+	// The window is unmapped, no fading is in progress.
+	WSTATE_UNMAPPED,
+} winstate_t;
+
+enum win_flags {
+	/// win_image/shadow_image is out of date
+	WIN_FLAGS_IMAGE_STALE = 1,
+	/// there was an error trying to bind the images
+	WIN_FLAGS_IMAGE_ERROR = 2,
+};