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修正bug #202

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修正bug #202

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40203d9
修正bug
buddygr Jan 24, 2022
a950224
修复__doc__为None的问题
buddygr Feb 25, 2022
b1aec6a
修正不同终端的退格bug
buddygr Feb 25, 2022
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修正bug 
修正了退格不能跨行消除的bug，修正中文换行末尾缺字符的bug
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@buddygr
buddygr authored Jan 24, 2022
commit 40203d95d3c479a4dfd6b7c40f632a4f9d373b01
40 changes: 36 additions & 4 deletions termemulator/src/main/java/jackpal/androidterm/emulatorview/TerminalEmulator.java
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Original file line number Diff line number Diff line change
Expand Up @@ -766,8 +766,9 @@ private void process(byte b, boolean doUTF8) {
}
break;

case 8: // BS
setCursorCol(Math.max(0, mCursorCol - 1));
case 8: // BS 退格
//乘着船 修改：修正了不能跨行消除的bug
doBackspace();
break;

case 9: // HT
Expand Down Expand Up @@ -867,6 +868,30 @@ private void process(byte b, boolean doUTF8) {
}
}

private void doBackspace(){ //退格 by 乘着船
char[] line; //目标字符串行
int i; //计数变量
int width=0; //单字符宽度
int tWidth=0; //累计字符宽度
if (mCursorCol<=0) { //跨行退格
line = mScreen.getScriptLine(mCursorRow-1);//目标行：上一行
//定位光标到：上一行最后一个字符
setCursorRowCol(mCursorRow-1,line.length-1);
} else { //本行退格
line = mScreen.getScriptLine(mCursorRow);//目标行：本行
}
for (i=0;i<line.length;i++){ //计算累计字符宽度
width=UnicodeTranscript.charWidth(line,i);//获取单字符宽度
tWidth+=width;
//计算最终单个字符宽度：当累计字符宽度>=光标当前位置
if(tWidth>=mCursorCol){
width-=tWidth-mCursorCol;//修正末尾误差
break;
}
}
setCursorCol(mCursorCol-width);//定位当前行光标列位置
}

private boolean handleUTF8Sequence(byte b) {
if (mUTF8ToFollow == 0 && (b & 0x80) == 0) {
// ASCII character -- we don't need to handle this
Expand Down Expand Up @@ -1862,7 +1887,12 @@ private void emit(int c, int style) {
int width = UnicodeTranscript.charWidth(c);

if (autoWrap) {
if (mCursorCol == mColumns - 1 && (mAboutToAutoWrap || width == 2)) {
/*乘着船 修改：
修正中文换行末尾缺字符的bug，
剩一个字符时，或者上次操作剩两个以下字符时(mAboutToAutoWrap变量)，
立即换行，避免下个字符是中文，导致超出范围显示不全
*/
if ((mCursorCol >= mColumns - 1) || mAboutToAutoWrap) {
mScreen.setLineWrap(mCursorRow);
mCursorCol = 0;
mJustWrapped = true;
Expand Down Expand Up @@ -1895,7 +1925,9 @@ private void emit(int c, int style) {
}

if (autoWrap) {
mAboutToAutoWrap = (mCursorCol == mColumns - 1);
//乘着船 修改：修正中文换行末尾缺字符的bug，
//剩两个或一个字符时，即可换行，避免下个字符是中文，导致超出范围显示不全
mAboutToAutoWrap = (mCursorCol >= mColumns - 2);

//Force line-wrap flag to trigger even for lines being typed
if (mAboutToAutoWrap)
Expand Down