[PATCH] riched20: Handle efficiently caret creation/destruction.
Sergio Gómez Del Real
sdelreal at codeweavers.com
Wed Apr 3 08:23:04 CDT 2019
Signed-off-by: Sergio Gómez Del Real <sdelreal at codeweavers.com>
---
dlls/riched20/caret.c | 65 +++++++++++++++++++++++------------------
dlls/riched20/editor.c | 18 +++++++-----
dlls/riched20/editor.h | 7 +++--
dlls/riched20/editstr.h | 2 ++
dlls/riched20/paint.c | 1 -
dlls/riched20/table.c | 3 +-
6 files changed, 54 insertions(+), 42 deletions(-)
diff --git a/dlls/riched20/caret.c b/dlls/riched20/caret.c
index ad72511da4..0951bb9617 100644
--- a/dlls/riched20/caret.c
+++ b/dlls/riched20/caret.c
@@ -266,36 +266,47 @@ void ME_GetCursorCoordinates(ME_TextEditor *editor, ME_Cursor *pCursor,
return;
}
-
-void
-ME_MoveCaret(ME_TextEditor *editor)
+void create_caret(ME_TextEditor *editor)
{
int x, y, height;
ME_GetCursorCoordinates(editor, &editor->pCursors[0], &x, &y, &height);
- if(editor->bHaveFocus && !ME_IsSelection(editor))
+ ITextHost_TxCreateCaret(editor->texthost, NULL, 0, height);
+ editor->caret_height = height;
+ editor->caret_hidden = TRUE;
+}
+
+void show_caret(ME_TextEditor *editor)
+{
+ ITextHost_TxShowCaret(editor->texthost, TRUE);
+ editor->caret_hidden = FALSE;
+}
+
+void hide_caret(ME_TextEditor *editor)
+{
+ /* calls to HideCaret are cumulative; do so only once */
+ if (!editor->caret_hidden)
{
+ ITextHost_TxShowCaret(editor->texthost, FALSE);
+ editor->caret_hidden = TRUE;
+ }
+}
+
+void update_caret(ME_TextEditor *editor)
+{
+ int x, y, height;
+
+ if (!editor->bHaveFocus) return;
+ if (!ME_IsSelection(editor))
+ {
+ ME_GetCursorCoordinates(editor, &editor->pCursors[0], &x, &y, &height);
+ if (height != editor->caret_height) create_caret(editor);
x = min(x, editor->rcFormat.right-1);
- ITextHost_TxCreateCaret(editor->texthost, NULL, 0, height);
ITextHost_TxSetCaretPos(editor->texthost, x, y);
+ show_caret(editor);
}
-}
-
-
-void ME_ShowCaret(ME_TextEditor *ed)
-{
- ME_MoveCaret(ed);
- if(ed->bHaveFocus && !ME_IsSelection(ed))
- ITextHost_TxShowCaret(ed->texthost, TRUE);
-}
-
-void ME_HideCaret(ME_TextEditor *ed)
-{
- if(!ed->bHaveFocus || ME_IsSelection(ed))
- {
- ITextHost_TxShowCaret(ed->texthost, FALSE);
- DestroyCaret();
- }
+ else
+ hide_caret(editor);
}
BOOL ME_InternalDeleteText(ME_TextEditor *editor, ME_Cursor *start,
@@ -1200,8 +1211,7 @@ void ME_LButtonDown(ME_TextEditor *editor, int x, int y, int clickNum)
}
}
ME_InvalidateSelection(editor);
- ITextHost_TxShowCaret(editor->texthost, FALSE);
- ME_ShowCaret(editor);
+ update_caret(editor);
ME_SendSelChange(editor);
}
@@ -1233,8 +1243,7 @@ void ME_MouseMove(ME_TextEditor *editor, int x, int y)
}
ME_InvalidateSelection(editor);
- ITextHost_TxShowCaret(editor->texthost, FALSE);
- ME_ShowCaret(editor);
+ update_caret(editor);
ME_SendSelChange(editor);
}
@@ -1627,9 +1636,9 @@ ME_ArrowKey(ME_TextEditor *editor, int nVKey, BOOL extend, BOOL ctrl)
ME_InvalidateSelection(editor);
ME_Repaint(editor);
- ITextHost_TxShowCaret(editor->texthost, FALSE);
+ hide_caret(editor);
ME_EnsureVisible(editor, &tmp_curs);
- ME_ShowCaret(editor);
+ update_caret(editor);
ME_SendSelChange(editor);
return success;
}
diff --git a/dlls/riched20/editor.c b/dlls/riched20/editor.c
index b7254d2a21..b826a2cbe9 100644
--- a/dlls/riched20/editor.c
+++ b/dlls/riched20/editor.c
@@ -1802,9 +1802,7 @@ static LRESULT ME_StreamIn(ME_TextEditor *editor, DWORD format, EDITSTREAM *stre
if (!(format & SFF_SELECTION)) {
ME_ClearTempStyle(editor);
}
- ITextHost_TxShowCaret(editor->texthost, FALSE);
- ME_MoveCaret(editor);
- ITextHost_TxShowCaret(editor->texthost, TRUE);
+ update_caret(editor);
ME_SendSelChange(editor);
ME_SendRequestResize(editor, FALSE);
@@ -2158,8 +2156,7 @@ static int handle_EM_EXSETSEL( ME_TextEditor *editor, int to, int from )
ME_InvalidateSelection( editor );
end = ME_SetSelection( editor, to, from );
ME_InvalidateSelection( editor );
- ITextHost_TxShowCaret( editor->texthost, FALSE );
- ME_ShowCaret( editor );
+ update_caret( editor );
ME_SendSelChange( editor );
return end;
@@ -3118,6 +3115,8 @@ ME_TextEditor *ME_MakeEditor(ITextHost *texthost, BOOL bEmulateVersion10)
ed->bHaveFocus = FALSE;
ed->bDialogMode = FALSE;
ed->bMouseCaptured = FALSE;
+ ed->caret_hidden = FALSE;
+ ed->caret_height = 0;
for (i=0; i<HFONT_CACHE_SIZE; i++)
{
ed->pFontCache[i].nRefs = 0;
@@ -3529,7 +3528,7 @@ static LRESULT ME_WmCreate(ME_TextEditor *editor, LPARAM lParam, BOOL unicode)
ME_CommitUndo(editor);
ME_WrapMarkedParagraphs(editor);
- ME_MoveCaret(editor);
+ update_caret(editor);
return 0;
}
@@ -4511,7 +4510,8 @@ LRESULT ME_HandleMessage(ME_TextEditor *editor, UINT msg, WPARAM wParam,
break;
case WM_SETFOCUS:
editor->bHaveFocus = TRUE;
- ME_ShowCaret(editor);
+ create_caret(editor);
+ update_caret(editor);
ME_SendOldNotify(editor, EN_SETFOCUS);
if (!editor->bHideSelection && !(editor->styleFlags & ES_NOHIDESEL))
ME_InvalidateSelection( editor );
@@ -4520,7 +4520,8 @@ LRESULT ME_HandleMessage(ME_TextEditor *editor, UINT msg, WPARAM wParam,
ME_CommitUndo(editor); /* End coalesced undos for typed characters */
editor->bHaveFocus = FALSE;
editor->wheel_remain = 0;
- ME_HideCaret(editor);
+ hide_caret(editor);
+ DestroyCaret();
ME_SendOldNotify(editor, EN_KILLFOCUS);
if (!editor->bHideSelection && !(editor->styleFlags & ES_NOHIDESEL))
ME_InvalidateSelection( editor );
@@ -4978,6 +4979,7 @@ static LRESULT RichEditWndProc_common(HWND hWnd, UINT msg, WPARAM wParam,
RECT rc;
PAINTSTRUCT ps;
+ update_caret(editor);
hDC = BeginPaint(editor->hWnd, &ps);
if (!editor->bEmulateVersion10 || (editor->nEventMask & ENM_UPDATE))
ME_SendOldNotify(editor, EN_UPDATE);
diff --git a/dlls/riched20/editor.h b/dlls/riched20/editor.h
index 2633fa8f1b..2e08eeee3f 100644
--- a/dlls/riched20/editor.h
+++ b/dlls/riched20/editor.h
@@ -152,9 +152,10 @@ void ME_SetDefaultCharFormat(ME_TextEditor *editor, CHARFORMAT2W *mod) DECLSPEC_
void ME_SetCursorToStart(ME_TextEditor *editor, ME_Cursor *cursor) DECLSPEC_HIDDEN;
int ME_SetSelection(ME_TextEditor *editor, int from, int to) DECLSPEC_HIDDEN;
BOOL ME_MoveCursorWords(ME_TextEditor *editor, ME_Cursor *cursor, int nRelOfs) DECLSPEC_HIDDEN;
-void ME_HideCaret(ME_TextEditor *ed) DECLSPEC_HIDDEN;
-void ME_ShowCaret(ME_TextEditor *ed) DECLSPEC_HIDDEN;
-void ME_MoveCaret(ME_TextEditor *ed) DECLSPEC_HIDDEN;
+void hide_caret(ME_TextEditor *ed) DECLSPEC_HIDDEN;
+void show_caret(ME_TextEditor *ed) DECLSPEC_HIDDEN;
+void update_caret(ME_TextEditor *ed) DECLSPEC_HIDDEN;
+void create_caret(ME_TextEditor *ed) DECLSPEC_HIDDEN;
BOOL ME_CharFromPos(ME_TextEditor *editor, int x, int y, ME_Cursor *cursor, BOOL *isExact) DECLSPEC_HIDDEN;
void ME_LButtonDown(ME_TextEditor *editor, int x, int y, int clickNum) DECLSPEC_HIDDEN;
void ME_MouseMove(ME_TextEditor *editor, int x, int y) DECLSPEC_HIDDEN;
diff --git a/dlls/riched20/editstr.h b/dlls/riched20/editstr.h
index 28be524806..87cd71cd4e 100644
--- a/dlls/riched20/editstr.h
+++ b/dlls/riched20/editstr.h
@@ -442,6 +442,8 @@ typedef struct tagME_TextEditor
/* Cache previously set scrollbar info */
SCROLLINFO vert_si, horz_si;
+ int caret_height;
+ BOOL caret_hidden;
BOOL bMouseCaptured;
int wheel_remain;
struct list style_list;
diff --git a/dlls/riched20/paint.c b/dlls/riched20/paint.c
index e2ccef4fbf..675e0f7a12 100644
--- a/dlls/riched20/paint.c
+++ b/dlls/riched20/paint.c
@@ -43,7 +43,6 @@ void ME_PaintContent(ME_TextEditor *editor, HDC hDC, const RECT *rcUpdate)
ME_InitContext(&c, editor, hDC);
SetBkMode(hDC, TRANSPARENT);
- ME_MoveCaret(editor);
item = editor->pBuffer->pFirst->next;
/* This context point is an offset for the paragraph positions stored
* during wrapping. It shouldn't be modified during painting. */
diff --git a/dlls/riched20/table.c b/dlls/riched20/table.c
index 7e8d7ffacb..1b4b9143d1 100644
--- a/dlls/riched20/table.c
+++ b/dlls/riched20/table.c
@@ -613,8 +613,7 @@ void ME_TabPressedInTable(ME_TextEditor *editor, BOOL bSelectedRow)
}
ME_InvalidateSelection(editor);
ME_Repaint(editor);
- ITextHost_TxShowCaret(editor->texthost, FALSE);
- ME_ShowCaret(editor);
+ update_caret(editor);
ME_SendSelChange(editor);
}
--
2.17.1
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