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Added classes to manage simple tabular data of known structure using a

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popup containing a wxGrid object.

BasePicker : Abstract class adding a popup to wxPickerBase  styled with
a wxTextCtrl.
BaseGridPicker : Abstract class adding a wxGrid in the popup.

JsonGridPickerCtrl : UI control storing the tabular data in a JSON
array.
LBoundJsonGridPicker : connect JsonGridPicker to database.
LGridJsonCellEditor : use LBoundJsonGridPicker in other wxGrid objects.
LGridJsonCellRenderer : render cell JSON data.

XmlGridPickerCtrl : UI control storing the tabular data in as XML
document.
LBoundXmlGridPicker : connect XmlGridPicker to database.
LGridXmlCellEditor : grid editor for LBoundXmlGridPicker.
LGridXmlCellRenderer : grid renderer for LBoundXmlGridPicker.

JsonHelper and XmlHelper : for applications to quickly get intent value
from database data..

The structure of managed tabular data :

Column 1 : Intent - this is what we want to store/edit. This can be
telephone numbers, email addresses, instant messaging addresses...
any single line piece of information that can exist many times for one
entity (person, company...).
Column 2 : Type - A short description of the intent : 'Home, Work,
Mobile, Fax, Other...'. It is displayed in a non editable wxComboBox.
Column 3 : Preferred - One line of data can be selected as the preferred
one. It is not mandatory, but it must be a single choice.
Column 4 : Notes - single line notes.

Adjust sql scripts and L7.dox.
Applied ANSI formatting style to all files.

Other changes :

Work around a nasty misbehavior.
Grid columns edited by a translated combobox expect full string
data as cell values. LResultSet::BEData() will report these mapped strings,
instead of database real data. LBoundComboBox::IsDirty() will always be
true even if the editor is unchanged once created.
Simplest workaround : disconnect m_BoundComboBox if unchanged.

LGridTextEditor::ProvideFormEditor() : set the form editor's value
explicitely.; wxTextCtrl does not interpret data it receives

LBoundControl::SetNull must be void.

LBoundGrid : Unbind:: instructions should limit to the widget's id, like Bind::

LConnection::GetReturnedKeys should return NULL.
LConnection::SetData should return void.

Notes : wxJSON must be configured with the same prefix as wxWidgets,
here /usr/local/{wxWidgets,wxWidgets-Release}.
This commit is contained in:
SET
2019-12-22 16:35:16 +01:00
parent 1ec23950c0
commit aaacf88071
82 changed files with 3368 additions and 595 deletions
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171
L7/special/JsonGridPickerCtrl.cpp Normal file
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/*
* File: JsonGridPickerCtrl.cpp
* Author: SET - nmset@netcourrier.com
* License : LGPL version 2.1
* Copyright SET, M. D. - © 2014
*
* Created on December 7, 2019, 10:01 PM
*/
/*
* [
{
"Intent" : "a@b.com",
"Type" : "Home",
"Preferred" : 0,
"Notes" : "Do not use"
},
{
"Intent" : "c@d.com",
"Type" : "Work",
"Preferred" : 1,
"Notes" : "Neither"
}
]
*/
#include "JsonGridPickerCtrl.h"
#include <wx/jsonreader.h>
#include <wx/jsonwriter.h>
IMPLEMENT_CLASS(JsonGridPickerCtrl, BaseGridPicker)
#define EMPTY_ARR _T("[]")
JsonGridPickerCtrl::JsonGridPickerCtrl(wxWindow *parent,
wxWindowID id,
const wxArrayString& types,
wxSize popupSize,
const wxString& text,
const wxPoint& pos,
const wxSize& size,
long style,
const wxValidator& validator,
const wxString& name)
: BaseGridPicker(parent, id, types, popupSize, text, pos, size, style, validator, name)
{
/*
* Don't create the grid here. Let SetValue() do it, deleting the previous
* one every time new data is fed in.
*/
SetValue(wxEmptyString);
}
JsonGridPickerCtrl::~JsonGridPickerCtrl()
{
}
void JsonGridPickerCtrl::SetValue(const wxString& value)
{
if (value.IsEmpty())
{
m_value = EMPTY_ARR;
BaseGridPicker::CreateGrid(); // +++
GetTextCtrl()->SetValue(INVALID_INTENT);
return;
}
m_value = value;
BaseGridPicker::CreateGrid(); // +++
GetTextCtrl()->SetValue(INVALID_INTENT);
wxJSONReader reader(wxJSONREADER_STRICT);
wxJSONValue root;
uint nbErr = reader.Parse(m_value, &root);
if (nbErr > 0)
{
const wxArrayString& errors = reader.GetErrors();
for (int i = 0; i < nbErr; i++)
{
wxASSERT_MSG(nbErr == 0, errors[i]);
}
return;
}
if (!root.IsArray())
{
wxASSERT_MSG(root.IsArray(), _("JSON data is not an array"));
return;
}
for (uint row = 0; row < root.Size(); row++)
{
if (root[row]["Preferred"].IsValid()
&& !root[row]["Preferred"].AsString().IsEmpty()
&& root[row]["Preferred"].AsInt() != 0)
{
GetTextCtrl()->SetValue(root[row]["Intent"].AsString());
return;
}
}
GetTextCtrl()->SetValue(INVALID_INTENT);
}
wxString JsonGridPickerCtrl::GetValue()
{
DumpGrid();
/*
* wxJSONWriter adds quotes and line breaks to EMPTY_ARR !
* m_value is set in DumpGrid(). If there is no grid data, m_value is set
* to \"[]\"\n
*/
wxJSONValue empty(EMPTY_ARR);
wxJSONWriter writer;
wxString sempty;
writer.Write(empty, sempty);
if (m_value == sempty)
return wxEmptyString;
return m_value;
}
void JsonGridPickerCtrl::FillGrid()
{
wxASSERT_MSG(m_grid != NULL, _("m_grid IS NULL"));
wxJSONReader reader(wxJSONREADER_STRICT);
wxJSONValue root;
uint nbErr = reader.Parse(m_value, &root);
if (nbErr > 0)
{
const wxArrayString& errors = reader.GetErrors();
for (int i = 0; i < nbErr; i++)
{
wxASSERT_MSG(nbErr == 0, errors[i]);
}
return;
}
if (!root.IsArray())
{
wxASSERT_MSG(root.IsArray(), _("JSON data is not an array"));
return;
}
for (uint row = 0; row < root.Size(); row++)
{
m_grid->InsertRows(row);
m_grid->SetCellValue(row, 0, root[row]["Intent"].AsString());
m_grid->SetCellValue(row, 1, root[row]["Type"].AsString());
m_grid->SetCellValue(row, 2, root[row]["Preferred"].AsString());
m_grid->SetCellValue(row, 3, root[row]["Notes"].AsString());
}
}
void JsonGridPickerCtrl::DumpGrid()
{
wxASSERT_MSG(m_grid != NULL, _("m_grid IS NULL"));
wxASSERT_MSG(m_stringTable != NULL, _("m_stringTable IS NULL"));
if (!m_editable || !m_stringTable || !m_grid)
return;
wxJSONWriter writer;
wxJSONValue root(EMPTY_ARR);
uint row = 0;
uint jrow = 0;
for (row; row < m_stringTable->GetRowsCount(); row++)
{
if (m_stringTable->GetValue(row, 0).IsEmpty())
continue;
root[jrow]["Intent"] = m_stringTable->GetValue(row, 0);
root[jrow]["Type"] = m_stringTable->GetValue(row, 1);
root[jrow]["Preferred"] = (m_stringTable->GetValue(row, 2) == _T("0")
|| m_stringTable->GetValue(row, 2).IsEmpty()) ? 0 : 1;
root[jrow]["Notes"] = m_stringTable->GetValue(row, 3);
jrow++;
}
writer.Write(root, m_value); // May be EMPTY_ARR
}