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Fixes: fakevime: some basic implementation for << and >>

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This commit is contained in:
hjk
2009-03-06 11:22:16 +01:00
parent 1f32ba9227
commit ff5f9af9e7
1 changed files with 156 additions and 42 deletions
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198
src/plugins/fakevim/fakevimhandler.cpp
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@@ -35,6 +35,21 @@
// Instead emit signals and let the FakeVimPlugin channel the information to
// Qt Creator. The idea is to keep this file here in a "clean" state that
// allows easy reuse with any QTextEdit or QPlainTextEdit derived class.
//
//
// Some conventions:
//
// Use 1 based line numbers and 0 based column numbers. Even though
// the 1 based line are not nice it matches vim's and QTextEdit's 'line'
// concepts.
//
// Do not pass QTextCursor etc around unless really needed. Convert
// early to line/column.
//
// There is always a "current" cursor (m_tc). A current "region of interest"
// spans between m_anchor (== anchor()) and m_tc.position() (== position())
// The value of m_tc.anchor() is not used.
#include <QtCore/QDebug>
#include <QtCore/QFile>
@@ -64,6 +79,13 @@
# define KEY_DEBUG(s)
#endif
//#define DEBUG_UNDO 1
#if DEBUG_UNDO
# define UNDO_DEBUG(s) qDebug() << s
#else
# define UNDO_DEBUG(s)
#endif
using namespace FakeVim::Internal;
using namespace FakeVim::Constants;
@@ -77,7 +99,6 @@ using namespace FakeVim::Constants;
#define Left QTextCursor::Left
#define EndOfDocument QTextCursor::End
///////////////////////////////////////////////////////////////////////
//
// FakeVimHandler
@@ -102,13 +123,15 @@ enum Mode
enum SubMode
{
NoSubMode,
RegisterSubMode,
ChangeSubMode,
DeleteSubMode,
FilterSubMode,
RegisterSubMode, // used for "
ChangeSubMode, // used for c
DeleteSubMode, // used for d
FilterSubMode, // used for !
ReplaceSubMode, // used for R and r
YankSubMode,
IndentSubMode,
YankSubMode, // used for y
ShiftLeftSubMode, // used for <
ShiftRightSubMode, // used for >
IndentSubMode, // used for =
ZSubMode,
};
@@ -250,6 +273,8 @@ private:
void moveRight(int n = 1) { m_tc.movePosition(Right, MoveAnchor, n); }
void moveLeft(int n = 1) { m_tc.movePosition(Left, MoveAnchor, n); }
void setAnchor() { m_anchor = m_tc.position(); }
void setAnchor(int position) { m_anchor = position; }
void setPosition(int position) { m_tc.setPosition(position, MoveAnchor); }
void handleFfTt(int key);
@@ -302,6 +327,9 @@ public:
QString m_lastInsertion;
// undo handling
void recordShiftRegionLeft(int repeat = 1);
void recordShiftRegionRight(int repeat = 1);
void recordOperation(const EditOperation &op);
void recordInsert(int position, const QString &data);
void recordRemove(int position, const QString &data);
@@ -310,7 +338,7 @@ public:
void recordRemoveNextChar();
void recordInsertText(const QString &data);
QString recordRemoveSelectedText();
void recordMove();
void recordPosition();
void recordBeginGroup();
void recordEndGroup();
int anchor() const { return m_anchor; }
@@ -561,7 +589,7 @@ void FakeVimHandler::Private::finishMovement(const QString &dotCommand)
if (m_submode == FilterSubMode) {
int beginLine = lineForPosition(anchor());
int endLine = lineForPosition(position());
m_tc.setPosition(qMin(anchor(), position()));
setPosition(qMin(anchor(), position()));
enterExMode();
m_commandBuffer = QString(".,+%1!").arg(qAbs(endLine - beginLine));
m_commandHistory.append(QString());
@@ -599,7 +627,7 @@ void FakeVimHandler::Private::finishMovement(const QString &dotCommand)
moveLeft();
} else if (m_submode == YankSubMode) {
m_registers[m_register] = selectedText();
m_tc.setPosition(m_savedYankPosition);
setPosition(m_savedYankPosition);
m_submode = NoSubMode;
} else if (m_submode == ReplaceSubMode) {
m_submode = NoSubMode;
@@ -611,10 +639,19 @@ void FakeVimHandler::Private::finishMovement(const QString &dotCommand)
qSwap(start, end);
QTextBlock startBlock = doc->findBlock(start);
indentRegion(doc->findBlock(start), doc->findBlock(end).next());
m_tc.setPosition(startBlock.position());
setPosition(startBlock.position());
moveToFirstNonBlankOnLine();
m_submode = NoSubMode;
} else if (m_submode == ShiftRightSubMode) {
recordShiftRegionRight(1);
m_submode = NoSubMode;
updateMiniBuffer();
} else if (m_submode == ShiftLeftSubMode) {
recordShiftRegionLeft(1);
m_submode = NoSubMode;
updateMiniBuffer();
}
m_moveType = MoveInclusive;
m_mvcount.clear();
m_opcount.clear();
@@ -781,6 +818,18 @@ EventResult FakeVimHandler::Private::handleCommandMode(int key, int unmodified,
moveDown(count());
m_moveType = MoveLineWise;
finishMovement("y");
} else if (m_submode == ShiftLeftSubMode && key == '<') {
setAnchor();
moveDown(count() - 1);
m_moveType = MoveLineWise;
m_dotCommand = QString("%1<<").arg(count());
finishMovement();
} else if (m_submode == ShiftRightSubMode && key == '>') {
setAnchor();
moveDown(count() - 1);
m_moveType = MoveLineWise;
m_dotCommand = QString("%1>>").arg(count());
finishMovement();
} else if (m_submode == IndentSubMode && key == '=') {
indentRegion(m_tc.block(), m_tc.block().next());
finishMovement();
@@ -788,21 +837,21 @@ EventResult FakeVimHandler::Private::handleCommandMode(int key, int unmodified,
//qDebug() << "Z_MODE " << cursorLineInDocument() << linesOnScreen();
if (key == Key_Return || key == 't') { // cursor line to top of window
if (!m_mvcount.isEmpty())
m_tc.setPosition(firstPositionInLine(count()));
setPosition(firstPositionInLine(count()));
scrollToLineInDocument(cursorLineInDocument());
if (key == Key_Return)
moveToFirstNonBlankOnLine();
finishMovement();
} else if (key == '.' || key == 'z') { // cursor line to center of window
if (!m_mvcount.isEmpty())
m_tc.setPosition(firstPositionInLine(count()));
setPosition(firstPositionInLine(count()));
scrollToLineInDocument(cursorLineInDocument() - linesOnScreen() / 2);
if (key == '.')
moveToFirstNonBlankOnLine();
finishMovement();
} else if (key == '-' || key == 'b') { // cursor line to bottom of window
if (!m_mvcount.isEmpty())
m_tc.setPosition(firstPositionInLine(count()));
setPosition(firstPositionInLine(count()));
scrollToLineInDocument(cursorLineInDocument() - linesOnScreen() - 1);
if (key == '-')
moveToFirstNonBlankOnLine();
@@ -839,7 +888,7 @@ EventResult FakeVimHandler::Private::handleCommandMode(int key, int unmodified,
} else if (m_subsubmode == BackTickSubSubMode
|| m_subsubmode == TickSubSubMode) {
if (m_marks.contains(key)) {
m_tc.setPosition(m_marks[key]);
setPosition(m_marks[key]);
if (m_subsubmode == TickSubSubMode)
moveToFirstNonBlankOnLine();
finishMovement();
@@ -943,6 +992,12 @@ EventResult FakeVimHandler::Private::handleCommandMode(int key, int unmodified,
handleKey(c.unicode(), c.unicode(), QString(c));
enterCommandMode();
m_dotCommand = savedCommand;
} else if (key == '<') {
m_savedYankPosition = m_tc.position();
m_submode = ShiftLeftSubMode;
} else if (key == '>') {
m_savedYankPosition = m_tc.position();
m_submode = ShiftRightSubMode;
} else if (key == '=') {
m_submode = IndentSubMode;
} else if (key == '%') {
@@ -1065,7 +1120,7 @@ EventResult FakeVimHandler::Private::handleCommandMode(int key, int unmodified,
} else if (key == control('i')) {
if (!m_jumpListRedo.isEmpty()) {
m_jumpListUndo.append(position());
m_tc.setPosition(m_jumpListRedo.takeLast());
setPosition(m_jumpListRedo.takeLast());
}
} else if (key == 'j' || key == Key_Down) {
//qDebug() << "DESIRED COLUMN" << m_desiredColumn;
@@ -1135,7 +1190,7 @@ EventResult FakeVimHandler::Private::handleCommandMode(int key, int unmodified,
recordJump();
} else if (key == 'o' || key == 'O') {
recordBeginGroup();
recordMove();
recordPosition();
enterInsertMode();
moveToFirstNonBlankOnLine();
int numSpaces = leftDist();
@@ -1151,7 +1206,7 @@ EventResult FakeVimHandler::Private::handleCommandMode(int key, int unmodified,
} else if (key == control('o')) {
if (!m_jumpListUndo.isEmpty()) {
m_jumpListRedo.append(position());
m_tc.setPosition(m_jumpListUndo.takeLast());
setPosition(m_jumpListUndo.takeLast());
}
} else if (key == 'p' || key == 'P') {
recordBeginGroup();
@@ -1160,7 +1215,7 @@ EventResult FakeVimHandler::Private::handleCommandMode(int key, int unmodified,
//qDebug() << "REGISTERS: " << m_registers << "MOVE: " << m_moveType;
//qDebug() << "LINES: " << n << text << m_register;
if (n > 0) {
recordMove();
recordPosition();
moveToStartOfLine();
m_desiredColumn = 0;
for (int i = count(); --i >= 0; ) {
@@ -1270,7 +1325,7 @@ EventResult FakeVimHandler::Private::handleCommandMode(int key, int unmodified,
int endLine = lineForPosition(m_marks['>']);
selectRange(beginLine, endLine);
m_registers[m_register] = selectedText();
m_tc.setPosition(qMin(position(), anchor()));
setPosition(qMin(position(), anchor()));
moveToStartOfLine();
leaveVisualMode();
updateSelection();
@@ -1540,13 +1595,17 @@ int FakeVimHandler::Private::readLineCode(QString &cmd)
void FakeVimHandler::Private::selectRange(int beginLine, int endLine)
{
m_anchor = firstPositionInLine(beginLine);
if (endLine == linesInDocument()) {
m_tc.setPosition(firstPositionInLine(endLine), MoveAnchor);
m_tc.movePosition(EndOfLine, MoveAnchor);
} else {
m_tc.setPosition(firstPositionInLine(endLine + 1), MoveAnchor);
}
if (beginLine == -1)
beginLine = cursorLineInDocument();
if (endLine == -1)
endLine = cursorLineInDocument();
if (beginLine > endLine)
qSwap(beginLine, endLine);
setAnchor(firstPositionInLine(beginLine));
if (endLine == linesInDocument())
setPosition(lastPositionInLine(endLine));
else
setPosition(firstPositionInLine(endLine + 1));
}
void FakeVimHandler::Private::handleExCommand(const QString &cmd0)
@@ -1577,16 +1636,12 @@ void FakeVimHandler::Private::handleExCommand(const QString &cmd0)
static QRegExp reHistory("^his(tory)?( (.*))?$");
if (cmd.isEmpty()) {
m_tc.setPosition(firstPositionInLine(beginLine));
setPosition(firstPositionInLine(beginLine));
showBlackMessage(QString());
enterCommandMode();
} else if (cmd == "q!" || cmd == "q") { // :q
quit();
} else if (reDelete.indexIn(cmd) != -1) { // :d
if (beginLine == -1)
beginLine = cursorLineInDocument();
if (endLine == -1)
endLine = cursorLineInDocument();
selectRange(beginLine, endLine);
QString reg = reDelete.cap(2);
QString text = recordRemoveSelectedText();
@@ -1650,10 +1705,6 @@ void FakeVimHandler::Private::handleExCommand(const QString &cmd0)
showBlackMessage(tr("\"%1\" %2L, %3C")
.arg(m_currentFileName).arg(data.count('\n')).arg(data.size()));
} else if (cmd.startsWith("!")) {
if (beginLine == -1)
beginLine = cursorLineInDocument();
if (endLine == -1)
endLine = cursorLineInDocument();
selectRange(beginLine, endLine);
QString command = cmd.mid(1).trimmed();
recordBeginGroup();
@@ -1669,7 +1720,7 @@ void FakeVimHandler::Private::handleExCommand(const QString &cmd0)
recordEndGroup();
leaveVisualMode();
m_tc.setPosition(firstPositionInLine(beginLine));
setPosition(firstPositionInLine(beginLine));
EditOperation op;
// FIXME: broken for "upward selection"
op.position = m_tc.position();
@@ -1680,6 +1731,14 @@ void FakeVimHandler::Private::handleExCommand(const QString &cmd0)
enterCommandMode();
//qDebug() << "FILTER: " << command;
showBlackMessage(tr("%1 lines filtered").arg(text.count('\n')));
} else if (cmd.startsWith(">")) {
m_anchor = firstPositionInLine(beginLine);
setPosition(firstPositionInLine(endLine));
recordShiftRegionRight(1);
leaveVisualMode();
enterCommandMode();
showBlackMessage(tr("%1 lines >ed %2 time")
.arg(endLine - beginLine + 1).arg(1));
} else if (cmd == "red" || cmd == "redo") { // :redo
redo();
enterCommandMode();
@@ -1798,6 +1857,61 @@ void FakeVimHandler::Private::indentCurrentLine(QChar typedChar)
indentRegion(m_tc.block(), m_tc.block().next(), typedChar);
}
void FakeVimHandler::Private::recordShiftRegionRight(int repeat)
{
int savedPos = anchor();
int beginLine = lineForPosition(anchor());
int endLine = lineForPosition(position());
if (beginLine > endLine)
qSwap(beginLine, endLine);
int len = m_config[ConfigShiftWidth].toInt() * repeat;
QString indent(len, ' ');
recordBeginGroup();
recordPosition();
for (int line = beginLine; line <= endLine; ++line) {
setPosition(firstPositionInLine(line));
recordInsertText(indent);
}
recordEndGroup();
setPosition(savedPos);
}
void FakeVimHandler::Private::recordShiftRegionLeft(int repeat)
{
int savedPos = anchor();
int beginLine = lineForPosition(anchor());
int endLine = lineForPosition(position());
if (beginLine > endLine)
qSwap(beginLine, endLine);
int shift = m_config[ConfigShiftWidth].toInt() * repeat;
int tab = m_config[ConfigTabStop].toInt();
recordBeginGroup();
recordPosition();
for (int line = beginLine; line <= endLine; ++line) {
int pos = firstPositionInLine(line);
setPosition(pos);
setAnchor(pos);
QString text = m_tc.block().text();
int amount = 0;
int i = 0;
for (; i < text.size() && amount <= shift; ++i) {
if (text.at(i) == ' ')
amount++;
else if (text.at(i) == '\t')
amount += tab; // FIXME: take position into consideration
else
break;
}
setPosition(pos + i);
text = recordRemoveSelectedText();
setPosition(pos);
}
recordEndGroup();
setPosition(savedPos);
}
void FakeVimHandler::Private::moveToDesiredColumn()
{
if (m_desiredColumn == -1 || m_tc.block().length() <= m_desiredColumn)
@@ -2125,7 +2239,7 @@ QString FakeVimHandler::Private::recordRemoveSelectedText()
void FakeVimHandler::Private::recordRemoveNextChar()
{
m_anchor = position();
setAnchor();
moveRight();
recordRemoveSelectedText();
}
@@ -2139,7 +2253,7 @@ void FakeVimHandler::Private::recordInsertText(const QString &data)
m_tc.insertText(data);
}
void FakeVimHandler::Private::recordMove()
void FakeVimHandler::Private::recordPosition()
{
EditOperation op;
op.position = m_tc.position();
@@ -2151,7 +2265,7 @@ void FakeVimHandler::Private::recordMove()
void FakeVimHandler::Private::recordOperation(const EditOperation &op)
{
//qDebug() << "OP: " << op;
UNDO_DEBUG("OP: " << op);
// No need to record operations that actually do not change anything.
if (op.from.isEmpty() && op.to.isEmpty() && op.itemCount == 0)
return;
@@ -2160,7 +2274,7 @@ void FakeVimHandler::Private::recordOperation(const EditOperation &op)
return;
m_undoStack.push(op);
m_redoStack.clear();
//qDebug() << "\nSTACK: " << m_undoStack;
UNDO_DEBUG("\nSTACK: " << m_undoStack);
}
void FakeVimHandler::Private::recordInsert(int position, const QString &data)
@@ -2221,7 +2335,7 @@ void FakeVimHandler::Private::recordJump()
{
m_jumpListUndo.append(position());
m_jumpListRedo.clear();
//qDebug() << m_jumpListUndo;
UNDO_DEBUG("jumps: " << m_jumpListUndo);
}
///////////////////////////////////////////////////////////////////////