From: mfranz Date: Thu, 18 Dec 2008 20:18:50 +0000 (+0000) Subject: Csaba/"Jester" and /me: since a few weeks the property browser had X-Git-Url: https://git.mxchange.org/?a=commitdiff_plain;h=35f7f555070dc10485ba8eb3bb0085f2c64ee7f9;p=flightgear.git Csaba/"Jester" and /me: since a few weeks the property browser had displayed garbage in the title line if one left a directory. Jester spent a lot of time finding the cause: a bug that must have been there since ... forever: fgfs reported to PUI the string addresses as returned by SGPropertyNode::getStringValue() without considering that this address isn't valid after the next write access to that node! It's almost a miracle that it worked so well for so long, despite that issue. (I also used to opportunity for some more cleanup -- so I'm to blame for any newly introduced bugs, and also for reverting some of Jester's cleanups. :-) --- diff --git a/src/GUI/dialog.cxx b/src/GUI/dialog.cxx index 40d718e19..f540bfec9 100644 --- a/src/GUI/dialog.cxx +++ b/src/GUI/dialog.cxx @@ -84,22 +84,19 @@ struct GUIInfo { GUIInfo(FGDialog * d); virtual ~GUIInfo(); - char *format(SGPropertyNode *); + void apply_format(SGPropertyNode *); FGDialog * dialog; vector bindings; int key; - char *text; - char *fmt_string; + string label, legend, text, format; format_type fmt_type; }; -GUIInfo::GUIInfo (FGDialog * d) - : dialog(d), - key(-1), - text(0), - fmt_string(0), - fmt_type(f_INVALID) +GUIInfo::GUIInfo (FGDialog * d) : + dialog(d), + key(-1), + fmt_type(f_INVALID) { } @@ -109,25 +106,24 @@ GUIInfo::~GUIInfo () delete bindings[i]; bindings[i] = 0; } - delete [] text; - delete [] fmt_string; } -char *GUIInfo::format(SGPropertyNode *n) +void GUIInfo::apply_format(SGPropertyNode *n) { + char buf[FORMAT_BUFSIZE + 1]; if (fmt_type == f_INT) - snprintf(text, FORMAT_BUFSIZE, fmt_string, n->getIntValue()); + snprintf(buf, FORMAT_BUFSIZE, format.c_str(), n->getIntValue()); else if (fmt_type == f_LONG) - snprintf(text, FORMAT_BUFSIZE, fmt_string, n->getLongValue()); + snprintf(buf, FORMAT_BUFSIZE, format.c_str(), n->getLongValue()); else if (fmt_type == f_FLOAT) - snprintf(text, FORMAT_BUFSIZE, fmt_string, n->getFloatValue()); + snprintf(buf, FORMAT_BUFSIZE, format.c_str(), n->getFloatValue()); else if (fmt_type == f_DOUBLE) - snprintf(text, FORMAT_BUFSIZE, fmt_string, n->getDoubleValue()); + snprintf(buf, FORMAT_BUFSIZE, format.c_str(), n->getDoubleValue()); else - snprintf(text, FORMAT_BUFSIZE, fmt_string, n->getStringValue()); + snprintf(buf, FORMAT_BUFSIZE, format.c_str(), n->getStringValue()); - text[FORMAT_BUFSIZE] = '\0'; - return text; + buf[FORMAT_BUFSIZE] = '\0'; + text = buf; } @@ -281,14 +277,21 @@ action_callback (puObject * object) static void copy_to_pui (SGPropertyNode * node, puObject * object) { + GUIInfo *info = (GUIInfo *)object->getUserData(); + if (!info) { + SG_LOG(SG_GENERAL, SG_ALERT, "dialog: widget without GUIInfo!"); + return; // this can't really happen + } + // Treat puText objects specially, so their "values" can be set // from properties. if (object->getType() & PUCLASS_TEXT) { - GUIInfo *info = (GUIInfo *)object->getUserData(); - if (info && info->fmt_string) - object->setLabel(info->format(node)); + if (info->fmt_type != f_INVALID) + info->apply_format(node); else - object->setLabel(node->getStringValue()); + info->text = node->getStringValue(); + + object->setLabel(info->text.c_str()); return; } @@ -303,7 +306,8 @@ copy_to_pui (SGPropertyNode * node, puObject * object) object->setValue(node->getFloatValue()); break; default: - object->setValue(node->getStringValue()); + info->text = node->getStringValue(); + object->setValue(info->text.c_str()); break; } } @@ -688,14 +692,21 @@ FGDialog::makeObject (SGPropertyNode * props, int parentWidth, int parentHeight) void FGDialog::setupObject (puObject * object, SGPropertyNode * props) { - string type = props->getName(); + GUIInfo *info = new GUIInfo(this); + object->setUserData(info); + _info.push_back(info); object->setLabelPlace(PUPLACE_CENTERED_RIGHT); + object->makeReturnDefault(props->getBoolValue("default")); - if (props->hasValue("legend")) - object->setLegend(props->getStringValue("legend")); + if (props->hasValue("legend")) { + info->legend = props->getStringValue("legend"); + object->setLegend(info->legend.c_str()); + } - if (props->hasValue("label")) - object->setLabel(props->getStringValue("label")); + if (props->hasValue("label")) { + info->label = props->getStringValue("label"); + object->setLabel(info->label.c_str()); + } if (props->hasValue("border")) object->setBorderThickness( props->getIntValue("border", 2) ); @@ -724,8 +735,7 @@ FGDialog::setupObject (puObject * object, SGPropertyNode * props) SGPropertyNode * dest = fgGetNode("/sim/bindings/gui", true); vector bindings = props->getChildren("binding"); - if (type == "text" || bindings.size() > 0) { - GUIInfo * info = new GUIInfo(this); + if (bindings.size() > 0) { info->key = props->getIntValue("keynum", -1); if (props->hasValue("key")) info->key = getKeyCode(props->getStringValue("key", "")); @@ -745,30 +755,23 @@ FGDialog::setupObject (puObject * object, SGPropertyNode * props) info->bindings.push_back(new SGBinding(binding, globals->get_props())); } object->setCallback(action_callback); + } - if (type == "input" && props->getBoolValue("live")) - object->setDownCallback(action_callback); - - if (type == "text") { - const char *format = props->getStringValue("format", 0); - if (format) { - info->fmt_type = validate_format(props->getStringValue("format", 0)); - if (info->fmt_type != f_INVALID) { - info->text = new char[FORMAT_BUFSIZE + 1]; - info->fmt_string = new char[strlen(format) + 1]; - strcpy(info->fmt_string, format); - } else { - SG_LOG(SG_GENERAL, SG_ALERT, "DIALOG: invalid '" - << format << '\''); - } - } + string type = props->getName(); + if (type == "input" && props->getBoolValue("live")) + object->setDownCallback(action_callback); + + if (type == "text") { + const char *format = props->getStringValue("format", 0); + if (format) { + info->fmt_type = validate_format(format); + if (info->fmt_type != f_INVALID) + info->format = format; + else + SG_LOG(SG_GENERAL, SG_ALERT, "DIALOG: invalid '" + << format << '\''); } - - object->setUserData(info); - _info.push_back(info); } - - object->makeReturnDefault(props->getBoolValue("default")); } void