[PATCH] richedit: fix modify step setting in EM_SETCHARFORMAT. Fixes crash #2 with Perfect! TextEdit. EM_SETCHARFORMAT with wParam==0 sets default char format and does NOT set modify step flag. EM_SETCHARFORMAT with wParam==SCF_SELECTION only sets modify step flag when selection is nonempty. EM_GETMODIFY returns -1, not 1, when modify flag is set. Tests for the above behavior.
Alex Villacís Lasso
alex at karlalex.palosanto.com
Sun Apr 27 13:17:28 CDT 2008
---
dlls/riched20/editor.c | 10 ++++---
dlls/riched20/tests/editor.c | 58 ++++++++++++++++++++++++++++++++++++++++++
2 files changed, 64 insertions(+), 4 deletions(-)
diff --git a/dlls/riched20/editor.c b/dlls/riched20/editor.c
index 9f357bb..56596d5 100644
--- a/dlls/riched20/editor.c
+++ b/dlls/riched20/editor.c
@@ -2206,7 +2206,7 @@ static LRESULT RichEditWndProc_common(HWND hWnd, UINT msg, WPARAM wParam,
return lColor;
}
case EM_GETMODIFY:
- return editor->nModifyStep == 0 ? 0 : 1;
+ return editor->nModifyStep == 0 ? 0 : -1;
case EM_SETMODIFY:
{
if (wParam)
@@ -2249,8 +2249,10 @@ static LRESULT RichEditWndProc_common(HWND hWnd, UINT msg, WPARAM wParam,
} else if (wParam == SCF_ALL) {
if (editor->mode & TM_PLAINTEXT)
ME_SetDefaultCharFormat(editor, p);
- else
+ else {
ME_SetCharFormat(editor, 0, ME_GetTextLength(editor), p);
+ editor->nModifyStep = 1;
+ }
} else if (editor->mode & TM_PLAINTEXT) {
return 0;
} else {
@@ -2258,8 +2260,8 @@ static LRESULT RichEditWndProc_common(HWND hWnd, UINT msg, WPARAM wParam,
ME_GetSelection(editor, &from, &to);
bRepaint = (from != to);
ME_SetSelectionCharFormat(editor, p);
- }
- editor->nModifyStep = 1;
+ if (from != to) editor->nModifyStep = 1;
+ }
ME_CommitUndo(editor);
if (bRepaint)
ME_RewrapRepaint(editor);
diff --git a/dlls/riched20/tests/editor.c b/dlls/riched20/tests/editor.c
index 56a23f6..211103c 100644
--- a/dlls/riched20/tests/editor.c
+++ b/dlls/riched20/tests/editor.c
@@ -438,6 +438,57 @@ static void test_EM_SETCHARFORMAT(void)
(LPARAM) &cf2);
ok(rc == 1, "EM_SETCHARFORMAT returned %d instead of 1\n", rc);
+ cf2.cbSize = sizeof(CHARFORMAT2);
+ SendMessage(hwndRichEdit, EM_GETCHARFORMAT, (WPARAM) SCF_DEFAULT,
+ (LPARAM) &cf2);
+
+ /* Test state of modify flag before and after valid EM_SETCHARFORMAT */
+ cf2.cbSize = sizeof(CHARFORMAT2);
+ SendMessage(hwndRichEdit, EM_GETCHARFORMAT, (WPARAM) SCF_DEFAULT,
+ (LPARAM) &cf2);
+ cf2.dwMask = CFM_ITALIC | cf2.dwMask;
+ cf2.dwEffects = CFE_ITALIC ^ cf2.dwEffects;
+
+ /* wParam==0 is default char format, does not set modify */
+ SendMessage(hwndRichEdit, WM_SETTEXT, 0, (LPARAM)NULL);
+ rc = SendMessage(hwndRichEdit, EM_GETMODIFY, 0, 0);
+ ok(rc == 0, "Text marked as modified, expected not modified!\n");
+ rc = SendMessage(hwndRichEdit, EM_SETCHARFORMAT, 0, (LPARAM) &cf2);
+ ok(rc == 1, "EM_SETCHARFORMAT returned %d instead of 1\n", rc);
+ rc = SendMessage(hwndRichEdit, EM_GETMODIFY, 0, 0);
+ ok(rc == 0, "Text marked as modified, expected not modified!\n");
+
+ /* wParam==SCF_SELECTION sets modify if nonempty selection */
+ SendMessage(hwndRichEdit, WM_SETTEXT, 0, (LPARAM)NULL);
+ rc = SendMessage(hwndRichEdit, EM_GETMODIFY, 0, 0);
+ ok(rc == 0, "Text marked as modified, expected not modified!\n");
+ rc = SendMessage(hwndRichEdit, EM_SETCHARFORMAT, SCF_SELECTION, (LPARAM) &cf2);
+ ok(rc == 1, "EM_SETCHARFORMAT returned %d instead of 1\n", rc);
+ rc = SendMessage(hwndRichEdit, EM_GETMODIFY, 0, 0);
+ ok(rc == 0, "Text marked as modified, expected not modified!\n");
+
+ SendMessage(hwndRichEdit, WM_SETTEXT, 0, (LPARAM)"wine");
+ rc = SendMessage(hwndRichEdit, EM_GETMODIFY, 0, 0);
+ ok(rc == 0, "Text marked as modified, expected not modified!\n");
+ rc = SendMessage(hwndRichEdit, EM_SETCHARFORMAT, SCF_SELECTION, (LPARAM) &cf2);
+ ok(rc == 1, "EM_SETCHARFORMAT returned %d instead of 1\n", rc);
+ rc = SendMessage(hwndRichEdit, EM_GETMODIFY, 0, 0);
+ ok(rc == 0, "Text marked as modified, expected not modified!\n");
+ SendMessage(hwndRichEdit, EM_SETSEL, 0, 2);
+ rc = SendMessage(hwndRichEdit, EM_SETCHARFORMAT, SCF_SELECTION, (LPARAM) &cf2);
+ ok(rc == 1, "EM_SETCHARFORMAT returned %d instead of 1\n", rc);
+ rc = SendMessage(hwndRichEdit, EM_GETMODIFY, 0, 0);
+ ok(rc == -1, "Text not marked as modified, expected modified! (%d)\n", rc);
+
+ /* wParam==SCF_ALL sets modify regardless of whether text is present */
+ SendMessage(hwndRichEdit, WM_SETTEXT, 0, (LPARAM)NULL);
+ rc = SendMessage(hwndRichEdit, EM_GETMODIFY, 0, 0);
+ ok(rc == 0, "Text marked as modified, expected not modified!\n");
+ rc = SendMessage(hwndRichEdit, EM_SETCHARFORMAT, (WPARAM) SCF_ALL, (LPARAM) &cf2);
+ ok(rc == 1, "EM_SETCHARFORMAT returned %d instead of 1\n", rc);
+ rc = SendMessage(hwndRichEdit, EM_GETMODIFY, 0, 0);
+ ok(rc == -1, "Text not marked as modified, expected modified! (%d)\n", rc);
+
DestroyWindow(hwndRichEdit);
}
@@ -472,10 +523,17 @@ static void test_EM_SETTEXTMODE(void)
cf2.dwMask = CFM_ITALIC | cf2.dwMask;
cf2.dwEffects = CFE_ITALIC ^ cf2.dwEffects;
+ rc = SendMessage(hwndRichEdit, EM_GETMODIFY, 0, 0);
+ ok(rc == 0, "Text marked as modified, expected not modified!\n");
+
/*EM_SETCHARFORMAT is not yet fully implemented for all WPARAMs in wine;
however, SCF_ALL has been implemented*/
rc = SendMessage(hwndRichEdit, EM_SETCHARFORMAT, (WPARAM) SCF_ALL, (LPARAM) &cf2);
ok(rc == 1, "EM_SETCHARFORMAT returned %d instead of 1\n", rc);
+
+ rc = SendMessage(hwndRichEdit, EM_GETMODIFY, 0, 0);
+ ok(rc == -1, "Text not marked as modified, expected modified! (%d)\n", rc);
+
SendMessage(hwndRichEdit, WM_SETTEXT, 0, (LPARAM) "wine");
/*Select the string "wine"*/
--
1.5.4.1
--------------000203000903060809020307--
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