6663b6c9
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projet complet av...
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#include "console_store.h"
#include <assert.h>
#include <string.h>
namespace Code {
ConsoleStore::ConsoleStore() :
m_history{0}
{
}
void ConsoleStore::clear() {
assert(k_historySize > 0);
m_history[0] = 0;
}
void ConsoleStore::startNewSession() {
if (k_historySize < 1) {
return;
}
m_history[0] = makePrevious(m_history[0]);
for (int i = 0; i < k_historySize - 1; i++) {
if (m_history[i] == 0) {
if (m_history[i+1] == 0) {
return ;
}
m_history[i+1] = makePrevious(m_history[i+1]);
}
}
}
ConsoleLine ConsoleStore::lineAtIndex(int i) const {
assert(i >= 0 && i < numberOfLines());
int currentLineIndex = 0;
for (int j=0; j<k_historySize; j++) {
if (m_history[j] == 0) {
currentLineIndex++;
j++;
}
if (currentLineIndex == i) {
return ConsoleLine(lineTypeForMarker(m_history[j]), m_history+j+1);
}
}
assert(false);
return ConsoleLine();
}
int ConsoleStore::numberOfLines() const {
if (m_history[0] == 0) {
return 0;
}
int result = 0;
for (int i = 0; i < k_historySize - 1; i++) {
if (m_history[i] == 0) {
result++;
if (m_history[i+1] == 0) {
return result;
}
}
}
assert(false);
return 0;
}
void ConsoleStore::pushCommand(const char * text, size_t length) {
push(CurrentSessionCommandMarker, text, length);
}
void ConsoleStore::pushResult(const char * text, size_t length) {
push(CurrentSessionResultMarker, text, length);
}
void ConsoleStore::deleteLastLineIfEmpty() {
ConsoleLine lastLine = lineAtIndex(numberOfLines()-1);
char lastLineFirstChar = lastLine.text()[0];
if (lastLineFirstChar == 0 || lastLineFirstChar == '\n') {
deleteLastLine();
}
}
int ConsoleStore::deleteCommandAndResultsAtIndex(int index) {
int numberOfLinesAtStart = numberOfLines();
assert(index >= 0 && index < numberOfLinesAtStart);
int indexOfLineToDelete = index;
while (indexOfLineToDelete < numberOfLinesAtStart - 1) {
if (lineAtIndex(indexOfLineToDelete + 1).isCommand()) {
break;
}
indexOfLineToDelete++;
}
ConsoleLine lineToDelete = lineAtIndex(indexOfLineToDelete);
while (indexOfLineToDelete > 0 && !lineAtIndex(indexOfLineToDelete).isCommand()) {
deleteLineAtIndex(indexOfLineToDelete);
indexOfLineToDelete--;
lineToDelete = lineAtIndex(indexOfLineToDelete);
}
deleteLineAtIndex(indexOfLineToDelete);
return indexOfLineToDelete;
}
void ConsoleStore::push(const char marker, const char * text, size_t length) {
size_t textLength = length;
if (ConsoleLine::sizeOfConsoleLine(length) > k_historySize - 1) {
textLength = k_historySize - 1 - 1 - 1; // Marker, null termination and null marker.
}
int i = indexOfNullMarker();
// If needed, make room for the text we want to push.
while (i + ConsoleLine::sizeOfConsoleLine(textLength) > k_historySize - 1) {
deleteFirstLine();
i = indexOfNullMarker();
}
m_history[i] = marker;
strlcpy(&m_history[i+1], text, textLength+1);
m_history[i+1+textLength+1] = 0;
}
ConsoleLine::Type ConsoleStore::lineTypeForMarker(char marker) const {
assert(marker == CurrentSessionCommandMarker || marker == CurrentSessionResultMarker || marker == PreviousSessionCommandMarker || marker == PreviousSessionResultMarker);
return static_cast<ConsoleLine::Type>(marker-1);
}
int ConsoleStore::indexOfNullMarker() const {
if (m_history[0] == 0) {
return 0;
}
for (int i=0; i<k_historySize; i++) {
if (m_history[i] == 0 && m_history[i+1] == 0) {
return (i+1);
}
}
assert(false);
return 0;
}
void ConsoleStore::deleteLineAtIndex(int index) {
assert(index >=0 && index < numberOfLines());
int currentLineIndex = 0;
for (int i = 0; i < k_historySize - 1; i++) {
if (m_history[i] == 0) {
currentLineIndex++;
continue;
}
if (currentLineIndex == index) {
int nextLineStart = i;
while (m_history[nextLineStart] != 0 && nextLineStart < k_historySize - 2) {
nextLineStart++;
}
nextLineStart++;
if (nextLineStart > k_historySize - 1) {
return;
}
memmove(&m_history[i], &m_history[nextLineStart], (k_historySize - 1) - nextLineStart + 1);
return;
}
}
}
void ConsoleStore::deleteFirstLine() {
if (m_history[0] == 0) {
return;
}
int secondLineMarkerIndex = 1;
while (m_history[secondLineMarkerIndex] != 0) {
secondLineMarkerIndex++;
}
secondLineMarkerIndex++;
for (int i=0; i<k_historySize - secondLineMarkerIndex; i++) {
m_history[i] = m_history[secondLineMarkerIndex+i];
}
}
void ConsoleStore::deleteLastLine() {
int lineCount = numberOfLines();
if (lineCount < 0) {
return;
}
if (lineCount == 1) {
deleteFirstLine();
return;
}
int currentLineIndex = 1;
int lastLineMarkerIndex = 0;
for (int i=0; i<k_historySize; i++) {
if (m_history[i] == 0) {
currentLineIndex++;
if (currentLineIndex == lineCount) {
lastLineMarkerIndex = i+1;
break;
}
}
}
m_history[lastLineMarkerIndex] = 0;
}
}
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