Mercurial > lcfOS
annotate python/codeedit.py @ 266:649884d9dc61 Working chain 1
Test
| author | Windel Bouwman |
|---|---|
| date | Fri, 09 Aug 2013 16:49:29 +0200 |
| parents | 225f444019b1 |
| children | 046017431c6a |
| rev | line source |
|---|---|
| 160 | 1 #!/usr/bin/python |
| 2 | |
| 3 import sys | |
| 4 from PyQt4.QtCore import * | |
| 5 from PyQt4.QtGui import * | |
| 6 import inspect | |
| 7 | |
| 8 GAP = 5 | |
| 9 | |
| 10 def clipVal(v, mn, mx): | |
| 11 if v < mn: return mn | |
| 12 if v > mx: return mx | |
| 13 return v | |
| 14 | |
| 15 class InnerCode(QWidget): | |
| 249 | 16 textChanged = pyqtSignal() |
| 17 def __init__(self, scrollArea): | |
| 160 | 18 super().__init__(scrollArea) |
| 19 self.scrollArea = scrollArea | |
|
169
ee0d30533dae
Added more tests and improved the diagnostic update
Windel Bouwman
parents:
167
diff
changeset
|
20 self.setFont(QFont('Courier', 12)) |
| 160 | 21 self.setFocusPolicy(Qt.StrongFocus) |
| 163 | 22 # TODO: only beam cursor in text area.. |
| 23 self.setCursor(Qt.IBeamCursor) | |
| 162 | 24 h = QFontMetrics(self.font()).height() |
| 247 | 25 self.errorPixmap = QPixmap('icons/error.png').scaled(h, h) |
| 249 | 26 self.arrowPixmap = QPixmap('icons/arrow.png').scaled(h, h) |
| 160 | 27 self.blinkcursor = False |
| 162 | 28 self.errorlist = [] |
| 249 | 29 self.arrow = None |
| 160 | 30 # Initial values: |
| 31 self.setSource('') | |
| 32 self.CursorPosition = 0 | |
| 250 | 33 self.t = QTimer(self) |
| 34 self.t.timeout.connect(self.updateCursor) | |
| 35 self.t.setInterval(500) | |
| 36 self.t.start() | |
| 37 | |
| 249 | 38 def updateCursor(self): |
| 256 | 39 self.blinkcursor = not self.blinkcursor |
| 40 self.update() | |
| 41 #self.update(self.cursorX, self.cursorY, self.charWidth, self.charHeight) | |
| 249 | 42 |
| 43 def setSource(self, src): | |
| 256 | 44 self.src = src |
| 45 self.adjust() | |
| 249 | 46 |
| 47 def getSource(self): | |
| 256 | 48 return self.src |
| 249 | 49 |
| 50 def setErrors(self, el): | |
| 256 | 51 self.errorlist = el |
| 52 self.update() | |
| 249 | 53 |
| 54 def setCursorPosition(self, c): | |
| 256 | 55 self.cursorPosition = clipVal(c, 0, len(self.src)) |
| 56 self.update() | |
| 249 | 57 |
| 58 CursorPosition = property(lambda self: self.cursorPosition, setCursorPosition) | |
| 59 | |
| 60 @property | |
| 61 def Rows(self): | |
| 62 # Make this nicer: | |
| 63 return self.src.split('\n') | |
| 64 | |
| 65 @property | |
| 66 def CursorRow(self): | |
| 67 # TODO: make this nice. | |
| 68 txt = self.src[0:self.cursorPosition] | |
| 69 return len(txt.split('\n')) | |
| 70 | |
| 71 @property | |
| 72 def CursorCol(self): | |
| 73 txt = self.src[0:self.cursorPosition] | |
| 74 curLine = txt.split('\n')[-1] | |
| 75 return len(curLine) + 1 | |
| 76 | |
| 77 @property | |
| 78 def CurrentLine(self): | |
| 79 return self.getRow(self.CursorRow) | |
| 80 | |
| 81 def setRowCol(self, r, c): | |
| 163 | 82 prevRows = self.Rows[:r-1] |
| 161 | 83 txt = '\n'.join(prevRows) |
| 163 | 84 c = clipVal(c, 1, len(self.getRow(r))) |
| 162 | 85 self.CursorPosition = len(txt) + c + 1 |
| 167 | 86 self.showRow(self.CursorRow) |
| 249 | 87 |
| 88 def getRow(self, r): | |
| 161 | 89 rows = self.Rows |
| 160 | 90 r = r - 1 |
| 91 if r < 0 or r > len(rows) - 1: | |
| 92 return '' | |
| 93 else: | |
| 94 return rows[r] | |
| 249 | 95 |
| 96 def showRow(self, r): | |
| 163 | 97 self.scrollArea.ensureVisible(self.xposTXT, r * self.charHeight, 4, self.charHeight) |
| 256 | 98 |
| 249 | 99 # Annotations: |
| 100 def addAnnotation(self, row, col, ln, msg): | |
| 162 | 101 pass |
| 256 | 102 |
| 249 | 103 # Text modification: |
| 104 def getChar(self, pos): | |
| 160 | 105 pass |
| 256 | 106 |
| 249 | 107 def insertText(self, txt): |
| 256 | 108 self.setSource(self.src[0:self.CursorPosition] + txt + self.src[self.CursorPosition:]) |
| 109 self.CursorPosition += len(txt) | |
| 110 self.textChanged.emit() | |
| 111 | |
| 249 | 112 def deleteChar(self): |
| 256 | 113 self.setSource(self.src[0:self.CursorPosition] + self.src[self.CursorPosition+1:]) |
| 114 self.textChanged.emit() | |
| 115 | |
| 249 | 116 def GotoNextChar(self): |
| 256 | 117 if self.src[self.CursorPosition] != '\n': |
| 118 self.CursorPosition += 1 | |
| 119 | |
| 249 | 120 def GotoPrevChar(self): |
| 256 | 121 if self.src[self.CursorPosition - 1] != '\n': |
| 122 self.CursorPosition -= 1 | |
| 123 | |
| 249 | 124 def GotoNextLine(self): |
| 256 | 125 curLine = self.CurrentLine |
| 126 c = self.CursorCol - 1 # go to zero based | |
| 127 self.CursorPosition += len(curLine) - c + 1 # line break char! | |
| 128 curLine = self.CurrentLine | |
| 129 if len(curLine) < c: | |
| 130 self.CursorPosition += len(curLine) | |
| 131 else: | |
| 132 self.CursorPosition += c | |
| 133 self.showRow(self.CursorRow) | |
| 134 | |
| 249 | 135 def GotoPrevLine(self): |
| 256 | 136 c = self.CursorCol - 1 # go to zero based |
| 137 self.CursorPosition -= c + 1 # line break char! | |
| 138 curLine = self.CurrentLine | |
| 139 if len(curLine) > c: | |
| 140 self.CursorPosition -= len(curLine) - c | |
| 141 self.showRow(self.CursorRow) | |
| 142 | |
| 249 | 143 def paintEvent(self, event): |
| 160 | 144 # Helper variables: |
| 145 er = event.rect() | |
| 146 chw, chh = self.charWidth, self.charHeight | |
| 147 painter = QPainter(self) | |
| 148 # Background: | |
| 149 painter.fillRect(er, self.palette().color(QPalette.Base)) | |
| 162 | 150 painter.fillRect(QRect(self.xposLNA, er.top(), 4 * chw, er.bottom() + 1), Qt.gray) |
| 151 errorPen = QPen(Qt.red, 3) | |
| 160 | 152 # first and last row: |
| 161 | 153 row1 = max(int(er.top() / chh) - 1, 1) |
| 154 row2 = max(int(er.bottom() / chh) + 1, 1) | |
| 160 | 155 # Draw contents: |
| 163 | 156 ypos = row1 * chh - self.charDescent |
| 157 curRow = self.CursorRow | |
| 158 ydt = -chh + self.charDescent | |
| 160 | 159 for row in range(row1, row2 + 1): |
| 250 | 160 if curRow == row and self.hasFocus(): |
| 163 | 161 painter.fillRect(self.xposTXT, ypos + ydt, er.width(), chh, Qt.yellow) |
| 162 # cursor | |
| 163 if self.blinkcursor: | |
| 164 cursorX = self.CursorCol * self.charWidth + self.xposTXT - self.charWidth | |
| 165 cursorY = ypos + ydt | |
| 166 painter.fillRect(cursorX, cursorY, 2, chh, Qt.black) | |
| 160 | 167 painter.setPen(Qt.black) |
| 162 | 168 painter.drawText(self.xposLNA, ypos, '{0}'.format(row)) |
| 160 | 169 xpos = self.xposTXT |
| 161 | 170 painter.drawText(xpos, ypos, self.getRow(row)) |
| 249 | 171 if self.arrow and self.arrow.row == row: |
| 172 painter.drawPixmap(self.xposERR, ypos + ydt, self.arrowPixmap) | |
| 163 | 173 curErrors = [e for e in self.errorlist if e.loc.row == row] |
| 174 for e in curErrors: | |
| 175 painter.drawPixmap(self.xposERR, ypos + ydt, self.errorPixmap) | |
| 162 | 176 painter.setPen(errorPen) |
| 163 | 177 x = self.xposTXT + (e.loc.col - 1) * chw - 2 |
| 178 wt = e.loc.length * chw + 4 | |
| 167 | 179 dy = self.charDescent |
| 180 painter.drawLine(x, ypos + dy, x + wt, ypos + dy) | |
| 181 #painter.drawRoundedRect(x, ypos + ydt, wt, chh, 7, 7) | |
| 163 | 182 # print error balloon |
| 167 | 183 #painter.drawText(x, ypos + chh, e.msg) |
| 184 #if len(curErrors) > 0: | |
| 185 # ypos += chh | |
| 249 | 186 ypos += chh |
| 163 | 187 |
| 249 | 188 def keyPressEvent(self, event): |
| 160 | 189 if event.matches(QKeySequence.MoveToNextChar): |
| 190 self.GotoNextChar() | |
| 161 | 191 elif event.matches(QKeySequence.MoveToPreviousChar): |
| 160 | 192 self.GotoPrevChar() |
| 161 | 193 elif event.matches(QKeySequence.MoveToNextLine): |
| 160 | 194 self.GotoNextLine() |
| 161 | 195 elif event.matches(QKeySequence.MoveToPreviousLine): |
| 160 | 196 self.GotoPrevLine() |
| 161 | 197 elif event.matches(QKeySequence.MoveToNextPage): |
| 160 | 198 for i in range(5): |
| 199 self.GotoNextLine() | |
| 161 | 200 elif event.matches(QKeySequence.MoveToPreviousPage): |
| 160 | 201 for i in range(5): |
| 202 self.GotoPrevLine() | |
| 161 | 203 elif event.matches(QKeySequence.MoveToEndOfLine): |
| 160 | 204 self.CursorPosition += len(self.CurrentLine) - self.CursorCol + 1 |
| 161 | 205 elif event.matches(QKeySequence.MoveToStartOfLine): |
| 160 | 206 self.CursorPosition -= self.CursorCol - 1 |
| 161 | 207 elif event.matches(QKeySequence.Delete): |
| 208 self.deleteChar() | |
| 209 elif event.matches(QKeySequence.InsertParagraphSeparator): | |
| 210 self.insertText('\n') | |
| 211 elif event.key() == Qt.Key_Backspace: | |
| 212 self.CursorPosition -= 1 | |
| 213 self.deleteChar() | |
| 214 else: | |
| 215 char = event.text() | |
| 216 if char: | |
| 217 self.insertText(char) | |
| 160 | 218 self.update() |
| 249 | 219 |
| 220 def mousePressEvent(self, event): | |
| 256 | 221 pos = event.pos() |
| 222 if pos.x() > self.xposTXT and pos.x(): | |
| 223 c = round((pos.x() - self.xposTXT) / self.charWidth) | |
| 224 r = int(pos.y() / self.charHeight) + 1 | |
| 225 self.setRowCol(r, c) | |
| 226 super().mousePressEvent(event) | |
| 249 | 227 |
| 228 def adjust(self): | |
| 256 | 229 metrics = self.fontMetrics() |
| 230 self.charHeight = metrics.height() | |
| 231 self.charWidth = metrics.width('x') | |
| 232 self.charDescent = metrics.descent() | |
| 233 self.xposERR = GAP | |
| 234 self.xposLNA = self.xposERR + GAP + self.errorPixmap.width() | |
| 235 self.xposTXT = self.xposLNA + 4 * self.charWidth + GAP | |
| 236 self.xposEnd = self.xposTXT + self.charWidth * 80 | |
| 237 self.setMinimumWidth(self.xposEnd) | |
| 238 txt = self.src.split('\n') | |
| 239 self.setMinimumHeight(self.charHeight * len(txt)) | |
| 240 self.update() | |
| 160 | 241 |
| 242 class CodeEdit(QScrollArea): | |
| 248 | 243 def __init__(self): |
| 244 super().__init__() | |
| 245 self.ic = InnerCode(self) | |
| 246 self.textChanged = self.ic.textChanged | |
| 247 self.setWidget(self.ic) | |
| 248 self.setWidgetResizable(True) | |
| 249 self.setVerticalScrollBarPolicy(Qt.ScrollBarAlwaysOn) | |
| 250 self.setFocusPolicy(Qt.NoFocus) | |
| 251 self.showRow = self.ic.showRow | |
| 252 self.setRowCol = self.ic.setRowCol | |
| 253 self.FileName = None | |
| 254 Source = property(lambda s: s.ic.getSource(), lambda s, v: s.ic.setSource(v)) | |
| 249 | 255 |
| 248 | 256 def setErrors(self, el): |
| 257 self.ic.setErrors(el) | |
| 258 | |
| 259 def setFocus(self): | |
| 260 self.ic.setFocus() | |
| 256 | 261 super().setFocus() |
| 248 | 262 |
| 263 def setFileName(self, fn): | |
| 264 self.filename = fn | |
| 265 if not fn: | |
| 266 fn = 'Untitled' | |
| 267 self.setWindowTitle(fn) | |
| 249 | 268 |
| 248 | 269 def getFileName(self): |
| 270 return self.filename | |
| 271 FileName = property(getFileName, setFileName) | |
| 272 | |
| 160 | 273 |
| 274 if __name__ == '__main__': | |
| 249 | 275 app = QApplication(sys.argv) |
| 276 ce = CodeEdit() | |
| 277 ce.show() | |
| 278 src = ''.join(inspect.getsourcelines(InnerCode)[0]) | |
| 279 ce.Source = src | |
| 280 ce.resize(600, 800) | |
| 281 app.exec() | |
| 160 | 282 |