218 lines
7.1 KiB
Text
218 lines
7.1 KiB
Text
# PFD DataEntryElement - Data Entry UI Element.
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#
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# Uses the FMS Knobs to enter a text value with a given length and character set.
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#
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# To use, there must be an element called [PageName][ElementName] which will
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# be used for the complete string, and a set of [PageName][ElementName]{0...n}
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# elements, each consisting of a single character for input.
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#
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var DataEntryElement =
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{
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new : func (pagename, svg, name, value, size, charSet, style=nil)
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{
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var obj = {
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parents : [ DataEntryElement, PFD.UIElement ],
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_name : pagename ~ name,
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_size : size,
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_charSet : charSet,
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_dataEntryPos : -1,
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_dataEntrySymbol : [],
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_style : style,
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};
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if (style == nil) obj._style = PFD.DefaultStyle;
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obj._symbol = svg.getElementById(obj._name);
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assert(obj._symbol != nil, "Unable to find element" ~ obj._name);
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obj.setValue(value);
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for (var i = 0; i < size; i = i + 1) {
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var nodeName = obj._name ~ i;
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append(obj._dataEntrySymbol, svg.getElementById(nodeName));
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assert(obj._dataEntrySymbol[i] != nil, "Unable to find element " ~ nodeName);
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obj._dataEntrySymbol[i].setVisible(0);
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}
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# State and timer for flashing highlighting of elements
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obj._highlighted = 0;
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obj._highlightEnabled = 0;
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obj._flashTimer = nil;
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obj._highlightChar = 0;
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obj._highlightCharEnabled = 0;
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obj._flashCharTimer = nil;
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return obj;
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},
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getName : func() { return me._name; },
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getValue : func() { return me._symbol.getText(); },
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setValue : func(value) { me._symbol.setText(value); },
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setVisible : func(vis) {
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me._symbol.setVisible(vis);
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# Only ever hide the character entry symbols, as they are displayed
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# only when editing
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if (vis == 0) {
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for (var i = 0; i < me._size; i = i + 1) me._dataEntrySymbol[i].setVisible(0);
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}
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},
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_flashElement : func() {
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if (me._highlightEnabled == 0) {
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me._symbol.setDrawMode(canvas.Text.TEXT);
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me._symbol.setColor(me._style.NORMAL_TEXT_COLOR);
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me._highlighted = 0;
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} else {
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if (me._highlighted == 0) {
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me._symbol.setDrawMode(canvas.Text.TEXT + canvas.Text.FILLEDBOUNDINGBOX);
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me._symbol.setColorFill(me._style.HIGHLIGHT_COLOR);
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me._symbol.setColor(me._style.HIGHLIGHT_TEXT_COLOR);
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me._highlighted = 1;
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} else {
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me._symbol.setDrawMode(canvas.Text.TEXT);
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me._symbol.setColor(me._style.NORMAL_TEXT_COLOR);
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me._highlighted = 0;
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}
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}
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},
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highlightElement : func() {
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me._highlightEnabled = 1;
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me._highlighted = 0;
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me._flashElement();
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me._flashTimer = maketimer(me._style.CURSOR_BLINK_PERIOD, me, me._flashElement);
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me._flashTimer.start();
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},
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unhighlightElement : func() {
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if (me._flashTimer != nil) me._flashTimer.stop();
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me._flashTimer = nil;
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me._highlightEnabled = 0;
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me._highlighted = 0;
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me._flashElement();
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},
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_flashCharElement : func() {
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if (me._highlightCharEnabled == 0) {
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me._dataEntrySymbol[me._dataEntryPos].setDrawMode(canvas.Text.TEXT);
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me._dataEntrySymbol[me._dataEntryPos].setColor(me._style.NORMAL_TEXT_COLOR);
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me._highlightChar = 0;
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} else {
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if (me._highlightChar == 0) {
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me._dataEntrySymbol[me._dataEntryPos].setDrawMode(canvas.Text.TEXT + canvas.Text.FILLEDBOUNDINGBOX);
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me._dataEntrySymbol[me._dataEntryPos].setColorFill(me._style.HIGHLIGHT_COLOR);
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me._dataEntrySymbol[me._dataEntryPos].setColor(me._style.HIGHLIGHT_TEXT_COLOR);
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me._highlightChar = 1;
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} else {
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me._dataEntrySymbol[me._dataEntryPos].setDrawMode(canvas.Text.TEXT);
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me._dataEntrySymbol[me._dataEntryPos].setColor(me._style.NORMAL_TEXT_COLOR);
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me._highlightChar = 0;
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}
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}
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},
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highlightCharElement : func() {
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me._highlightCharEnabled = 1;
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me._highlightChar = 0;
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me._flashCharElement();
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me._flashCharTimer = maketimer(me._style.CURSOR_BLINK_PERIOD, me, me._flashCharElement);
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me._flashCharTimer.start();
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},
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unhighlightCharElement : func() {
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if (me._flashCharTimer != nil) me._flashCharTimer.stop();
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me._flashCharTimer = nil;
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me._highlightCharEnabled = 0;
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me._highlightChar = 0;
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me._flashCharElement();
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},
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isEditable : func () { return 1; },
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isInEdit : func() { return (me._dataEntryPos != -1); },
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enterElement : func() {
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# Handle pressing enter to confirm this element.
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# - Hiding the per-character entry fields
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# - concatenating the data that's been entered into a string
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# - displaying the string in the (highlighted) top level element
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#
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# Also pass back the string to the caller.
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var val = "";
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for (var i = 0; i < me._size; i = i + 1) {
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if (me._dataEntrySymbol[i].getText() != "_") {
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val = val ~ me._dataEntrySymbol[i].getText();
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}
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me._dataEntrySymbol[i].setVisible(0);
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}
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me._symbol.setText(val);
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me._symbol.setVisible(1);
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me.highlightElement();
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me._dataEntryPos = -1;
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return val;
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},
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clearElement : func() {
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# Cancel editing this element by
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# - Hiding the per-character entry fields
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# - Highlighting the top level element
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for (var i = 0; i < me._size; i = i + 1) {
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me._dataEntrySymbol[i].setVisible(0);
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}
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me._symbol.setVisible(1);
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me.highlightElement();
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me._dataEntryPos = -1;
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},
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incrSmall : func(value) {
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# Change the value of this element, or start editing it if we're not already
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# doing so.
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if (me._dataEntryPos == -1) {
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# Start editing by hiding the top level element, and displaying and
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# resetting the character entry fields.
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me._dataEntryPos = 0;
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me._symbol.setVisible(0);
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for (var i = 0; i < me._size; i = i + 1) {
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me._dataEntrySymbol[i].setText("_");
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me._dataEntrySymbol[i].setVisible(1);
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}
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# Highlight the first character element to indicate we're editing it
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me.highlightCharElement();
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} else {
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var charSym = me._dataEntrySymbol[me._dataEntryPos];
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var incr_or_decr = (value > 0) ? 1 : -1;
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# Change the value of the data element
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var val = charSym.getText();
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if (val == "_") {
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# Not previously set, so set to the first or last characterset entry
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# depending on direction
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if (incr_or_decr > 0) {
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charSym.setText(chr(me._charSet[0]));
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} else {
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charSym.setText(chr(me._charSet[size(me._charSet) -1]));
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}
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} else {
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var curIdx = find(val, me._charSet);
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if (curIdx == -1) die("Failed to find character " ~ val ~ " in dataEntryElement " ~ element);
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curIdx = math.mod(curIdx + incr_or_decr, size(me._charSet));
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charSym.setText(chr(me._charSet[curIdx]));
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}
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}
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},
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incrLarge : func(value) {
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# Change the cursor position within a data element
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var incr_or_decr = (value > 0) ? 1 : -1;
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if ((me._dataEntryPos == 0) and (incr_or_decr == -1)) return; # Don't scroll off the start
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if ((me._dataEntryPos == me._size -1) and (incr_or_decr == 1)) return; # Don't scroll off the end
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me.unhighlightCharElement();
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me._dataEntryPos = me._dataEntryPos + incr_or_decr;
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me.highlightCharElement();
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},
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};
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