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# -*- coding: utf-8 -*-
"""
/***************************************************************************
Name : DB Manager
Description : Database manager plugin for QGIS
Date : May 23, 2011
copyright : (C) 2011 by Giuseppe Sucameli
email : brush.tyler@gmail.com
***************************************************************************/
/***************************************************************************
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
***************************************************************************/
"""
from qgis.PyQt.QtCore import Qt
from qgis.PyQt.QtWidgets import QTextBrowser, QApplication
from .db_plugins.plugin import BaseError, DbError, DBPlugin, Schema, Table
from .dlg_db_error import DlgDbError
class InfoViewer(QTextBrowser):
def __init__(self, parent=None):
QTextBrowser.__init__(self, parent)
self.setOpenLinks(False)
self.item = None
self.dirty = False
self._clear()
self._showPluginInfo()
self.anchorClicked.connect(self._linkClicked)
def _linkClicked(self, url):
if self.item is None:
return
if url.scheme() == "action":
QApplication.setOverrideCursor(Qt.WaitCursor)
try:
if self.item.runAction(url.path()):
self.refresh()
except BaseError as e:
DlgDbError.showError(e, self)
return
finally:
QApplication.restoreOverrideCursor()
def refresh(self):
self.setDirty(True)
self.showInfo(self.item)
def showInfo(self, item):
if item == self.item and not self.dirty:
return
self._clear()
if item is None:
return
if isinstance(item, DBPlugin):
self._showDatabaseInfo(item)
elif isinstance(item, Schema):
self._showSchemaInfo(item)
elif isinstance(item, Table):
self._showTableInfo(item)
else:
return
self.item = item
item.aboutToChange.connect(self.setDirty)
def setDirty(self, val=True):
self.dirty = val
def _clear(self):
if self.item is not None:
## skip exception on RuntimeError fixes #6892
try:
self.item.aboutToChange.disconnect(self.setDirty)
except RuntimeError:
pass
self.item = None
self.dirty = False
self.item = None
self.setHtml("")
def _showPluginInfo(self):
from .db_plugins import getDbPluginErrors
html = u'<div style="background-color:#ffffcc;"><h1> ' + self.tr("DB Manager") + '</h1></div>'
html += '<div style="margin-left:8px;">'
for msg in getDbPluginErrors():
html += u"<p>%s" % msg
self.setHtml(html)
def _showDatabaseInfo(self, connection):
html = u'<div style="background-color:#ccffcc;"><h1> %s</h1></div>' % connection.connectionName()
html += '<div style="margin-left:8px;">'
try:
if connection.database() is None:
html += connection.info().toHtml()
else:
html += connection.database().info().toHtml()
except DbError as e:
html += u'<p style="color:red">%s</p>' % unicode(e).replace('\n', '<br>')
html += '</div>'
self.setHtml(html)
def _showSchemaInfo(self, schema):
html = u'<div style="background-color:#ffcccc;"><h1> %s</h1></div>' % schema.name
html += '<div style="margin-left:8px;">'
try:
html += schema.info().toHtml()
except DbError as e:
html += u'<p style="color:red">%s</p>' % unicode(e).replace('\n', '<br>')
html += "</div>"
self.setHtml(html)
def _showTableInfo(self, table):
html = u'<div style="background-color:#ccccff"><h1> %s</h1></div>' % table.name
html += '<div style="margin-left:8px;">'
try:
html += table.info().toHtml()
except DbError as e:
html += u'<p style="color:red">%s</p>' % unicode(e).replace('\n', '<br>')
html += '</div>'
self.setHtml(html)
return True
def setHtml(self, html):
# convert special tags :)
html = unicode(html).replace('<warning>', '<img src=":/db_manager/warning"> ')
# add default style
html = u"""
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html>
<head>
<style type="text/css">
.section { margin-top: 25px; }
table.header th { background-color: #dddddd; }
table.header td { background-color: #f5f5f5; }
table.header th, table.header td { padding: 0px 10px; }
table td { padding-right: 20px; }
.underline { text-decoration:underline; }
</style>
</head>
<body>
%s <br>
</body>
</html>
""" % html
# print ">>>>>\n", html, "\n<<<<<<"
return QTextBrowser.setHtml(self, html)
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