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Tweaked cursor movement a bit

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git-svn-id: svn://svn.code.sf.net/p/magicseteditor/code/trunk@882 0fc631ac-6414-0410-93d0-97cfa31319b6
This commit is contained in:
twanvl
2008-05-25 16:39:04 +00:00
parent 47e37d8778
commit 9eaebcbcdd
3 changed files with 41 additions and 22 deletions
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src/gui/value/text.cpp
+30 -19
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@@ -868,22 +868,33 @@ void TextValueEditor::insert(const String& text, const String& action_name) {
/// compare two cursor positions, determine how much the text matches before and after
size_t match_cursor_position(size_t pos1, const String& text1, size_t pos2, const String& text2) {
size_t penalty = 0; // penalty for case mismatches
size_t before;
for (before = 0 ; before < min(pos1,pos2) ; ++before) {
Char c1 = text1.GetChar(pos1-before-1), c2 = text2.GetChar(pos2-before-1);
if (toLower(c1) != toLower(c2)) break;
else if (c1 != c2) ++penalty;
size_t score = 0; // total score
// Match part before cursor
size_t before1, before2;
for (before1 = before2 = 0 ; before1 < pos1 && before2 < pos2 ; ++before1, ++before2) {
Char c1 = text1.GetChar(pos1-before1-1), c2 = text2.GetChar(pos2-before2-1);
if (c1 == c2) score += 10000;
else if (toLower(c1) == toLower(c2)) score += 9999;
else if (isPunct(c1) && isPunct(c2)) score += 1;
else if (c1 == UNTAG_ATOM_KWPPH) {score += 1; --before2;}
else break;
}
if (pos1 == before && pos2 == before) ++before; // bonus points for matching start of string
size_t after;
for (after = 0 ; after < min(text1.size() - pos1, text2.size() - pos2) ; ++after) {
Char c1 = text1.GetChar(pos1+after), c2 = text2.GetChar(pos2+after);
if (toLower(c1) != toLower(c2)) break;
else if (c1 != c2) ++penalty;
// bonus points for matching start of string
if (pos1 == before1 && pos2 == before2) score += 10000;
// Match part after cursor
size_t after1, after2;
for (after1 = after2 = 0 ; pos1 + after1 < text1.size() && pos2 + after2 < text2.size() ; ++after1, ++after2) {
Char c1 = text1.GetChar(pos1+after1), c2 = text2.GetChar(pos2+after2);
if (c1 == c2) score += 10;
else if (toLower(c1) == toLower(c2)) score += 9;
else if (isPunct(c1) && isPunct(c2)) score += 1;
else if (c2 == UNTAG_ATOM_KWPPH) {score += 1; --after1;}
else break;
}
if (pos1+after == text1.size() && pos2+after == text2.size()) ++after; // bonus points for matching end of string
return 1000 * before + 2 * after - penalty; // matching 'before' is more important
// bonus points for matching end of string
if (pos1+after1 == text1.size() && pos2+after2 == text2.size()) score += 2;
// final score: matching 'before' is more important
return score;
}
void TextValueEditor::replaceSelection(const String& replacement, const String& name, bool allow_auto_replace, bool select_on_undo) {
@@ -924,17 +935,17 @@ void TextValueEditor::replaceSelection(const String& replacement, const String&
size_t best_cursor = expected_cursor;
if (real_value.size() < expected_value.size()
&& expected_cursor < expected_value.size()
&& expected_value.GetChar(expected_cursor) == _('\3') // \3 == <sep>
&& real_value.GetChar(start) == _('\3') // \3 == <sep>
&& expected_value.GetChar(expected_cursor) == UNTAG_SEP
&& real_value.GetChar(start) == UNTAG_SEP
&& real_value.size() - end_min == start) {
// exception for type-over separators
best_cursor = start + 1;
} else {
// try to find the best match
// try to find the best match to what text we expected to be around the cursor
size_t best_match = 0;
for (size_t i = min(start, expected_cursor) ; i <= real_value.size() - end_min ; ++i) {
for (size_t i = min(start, expected_cursor) ; i <= max(real_value.size() - end_min, expected_cursor) ; ++i) {
size_t match = match_cursor_position(expected_cursor, expected_value, i, real_value);
if (match > best_match) {
if (match > best_match || (match == best_match && abs((int)expected_cursor - (int)i) < abs((int)expected_cursor - (int)best_cursor))) {
best_match = match;
best_cursor = i;
}