Input Method Editor (IME) support for text buttons

Original patch by @random (D765) with some minor work done by @campbell
and me.

At this place, I'd like call out a number of people who were involved and
deserve a big "Thank you!":
* At the first place @randon who developed and submitted the patch
* The Blendercn community which helped a lot with testing - espacially
* @yuzukyo, @leon_cheung and @kjym3
* @campbellbarton, @mont29 and @sergey for their help and advises during
* review
* @ton who realized the importance of this early on and asked me for
* reviewing

We are still not finished, as this is only the first part of the
implementaion, but there's more to come!

1 files changed, 20 insertions, 0 deletions

diff --git a/intern/ghost/GHOST_Types.h b/intern/ghost/GHOST_Types.h
index 7333ba025a5..c4a7490c71c 100644
--- a/intern/ghost/GHOST_Types.h
+++ b/intern/ghost/GHOST_Types.h
@@ -190,6 +190,10 @@ typedef enum {
 
 	GHOST_kEventTimer,
 
+	GHOST_kEventImeCompositionStart,
+	GHOST_kEventImeComposition,
+	GHOST_kEventImeCompositionEnd,
+
 	GHOST_kNumEventTypes
 } GHOST_TEventType;
 
@@ -436,6 +440,22 @@ typedef struct {
 	GHOST_TEventDataPtr data;
 } GHOST_TEventDragnDropData;
 
+/** similar to wmImeData */
+typedef struct {
+	/** size_t */
+	GHOST_TUserDataPtr result_len, composite_len;
+	/** char * utf8 encoding */
+	GHOST_TUserDataPtr result, composite;
+	/** Cursor position in the IME composition. */
+	int cursor_position;
+	/** Represents the position of the beginning of the selection */
+	int target_start;
+	/** Represents the position of the end of the selection */
+	int target_end;
+	/** custom temporal data */
+	GHOST_TUserDataPtr tmp;
+} GHOST_TEventImeData;
+
 typedef struct {
 	int count;
 	GHOST_TUns8 **strings;