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* Messy, but semi working concept for render vs real gap text buffer

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This commit is contained in:
Bryan Ashby 2015-05-26 22:17:57 -06:00
parent 581abd6d2c
commit d83e8e1b55
2 changed files with 40 additions and 32 deletions
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70
core/multi_line_edit_text_view.js
View file

@ -101,7 +101,7 @@ function MultiLineEditTextView(options) {
this.lines = []; // a given line is text...until EOL
this.topLineIndex = 0;
this.cursorPos = { x : 0, y : 0 }; // relative to view window
this.cursorPos = { row : 0, col : 0 }; // relative to view window
this.renderStartIndex = 0;
/*
@ -161,7 +161,7 @@ function MultiLineEditTextView(options) {
while(i < self.renderBuffer.length && row < bottom) {
self.client.term.write(ansi.goto(row, this.position.col));
self.client.term.write(self.renderBuffer[i]);
self.client.term.write(self.getRenderLine(self.renderBuffer[i]));
++row;
++i;
}
@ -180,22 +180,22 @@ function MultiLineEditTextView(options) {
return line.match(re) || [];
};
this.wordWrap2 = function(line) {
var tabString = self.getTabString();
var re = new RegExp(
'.{1,' + self.dimens.width + '}(\\s+|$)|\\S+?(\\s+|$)', 'g');
var checkLine = line.replace(/\t/g, tabString);
this.wordWrap3 = function(line, width) {
var re = new RegExp('.{1,' + width + '}(\\s+|$)|\\S+?(\\s+|$)', 'g');
return line.replace(/\t/g, new Array(self.tabWidth).join('\t')).match(re) || [];
};
this.regenerateRenderBuffer = function() {
this.getRenderLine = function(line) {
var replaceTabsRe = new RegExp('\\t{' + (self.tabWidth - 1) + '}', 'g');
var tabSpaces = new Array(self.tabWidth).join(' ');
return line.replace(replaceTabsRe, tabSpaces).replace(/\n/g, '');
};
this.updateRenderBuffer = function() {
self.renderBuffer = [];
// :TODO: optimize this by only rending what is visible -- or at least near there, e.g. topindex -> maxchars that can fit at most
// :TODO: asArray() should take a optional scope, e.g. asArray(beg, end)
var lines = self.textBuffer.asArray().slice(self.renderStartIndex)
// :TODO: optimize this with asArray() taking the slice information
var lines = self.textBuffer.asArray().slice(self.renderStartIndex, self.renderStartIndex + self.dimens.width * self.dimens.height)
.join('')
//.replace(/\t/g, self.tabString)
.split(/\r\n|\n|\r/g);
var maxLines = self.dimens.height - self.position.row;
@ -204,13 +204,28 @@ function MultiLineEditTextView(options) {
if(0 === lines[i].length) {
self.renderBuffer.push('');
} else {
Array.prototype.push.apply(self.renderBuffer, self.wordWrap(lines[i]));
Array.prototype.push.apply(self.renderBuffer, self.wordWrap3(lines[i] + '\n', self.dimens.width));
}
}
};
this.getTextBufferPosition = function(row, col) {
var line = self.renderBuffer[row];
var replaceTabsRe = new RegExp('\\t{' + (self.tabWidth - 1) + '}', 'g');
var pos = 0;
for(var r = 0; r < row; ++r) {
if(self.renderBuffer[r].length > 0) {
pos += self.renderBuffer[r].replace(replaceTabsRe, '\t').length;
} else {
pos += 1;
}
}
pos += self.renderBuffer[row]
.replace(replaceTabsRe, '\t')
.slice(0, Math.min(col, self.dimens.width))
.length;
return pos;
};
this.scrollUp = function(count) {
@ -224,7 +239,7 @@ function MultiLineEditTextView(options) {
this.cursorUp = function() {
if(self.cursorPos.row > 0) {
self.cursorPos.row--;
console.log(self.lines[self.getLineIndex()])
console.log(self.textBuffer.asArray().join('').slice(self.getTextBufferPosition(self.cursorPos.row, 0), 1));
} else if(self.topLineIndex > 0) {
// :TODO: scroll
}
@ -275,22 +290,15 @@ MultiLineEditTextView.prototype.setText = function(text) {
this.textBuffer.insertAll(0, text);
/*
var c;
for(var i = 0; i < text.length; ++i) {
c = text[i];
// :TODO: what should really be removed here??? Any non-printable besides \t and \r\n?
if('\b' === c) {
continue;
}
this.textBuffer.insert(i, c);
}*/
this.regenerateRenderBuffer();
this.updateRenderBuffer();
console.log(this.renderBuffer)
var idx = this.getTextBufferPosition(4, 0);
for(var i = idx; i < idx + 4; ++i) {
console.log(i + ' = "' + this.textBuffer.asArray()[i] + '"');
}
this.cursorPos.row = 3;
}
MultiLineEditTextView.prototype.onSpecialKeyPress = function(keyName) {