Initial release
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// This file is part of VSTGUI. It is subject to the license terms
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// in the LICENSE file found in the top-level directory of this
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// distribution and at http://github.com/steinbergmedia/vstgui/LICENSE
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#pragma once
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#include "../iuidescription.h"
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#if VSTGUI_LIVE_EDITING
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#include "../uiattributes.h"
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#include "../uidescriptionlistener.h"
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#include "../../lib/cdatabrowser.h"
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#include "../../lib/genericstringlistdatabrowsersource.h"
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#include "../../lib/controls/csearchtextedit.h"
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#include "../../lib/controls/cscrollbar.h"
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#include <sstream>
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#include <algorithm>
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namespace VSTGUI {
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//----------------------------------------------------------------------------------------------------
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class UIBaseDataSource : public GenericStringListDataBrowserSource, public IControlListener, public UIDescriptionListenerAdapter
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{
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public:
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using StringVector = GenericStringListDataBrowserSource::StringVector;
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UIBaseDataSource (UIDescription* description, IActionPerformer* actionPerformer, GenericStringListDataBrowserSourceSelectionChanged* delegate = nullptr)
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: GenericStringListDataBrowserSource (0, delegate) , description (description), actionPerformer (actionPerformer)
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{
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description->registerListener (this);
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textInset.x = 4;
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}
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~UIBaseDataSource () override
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{
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description->unregisterListener (this);
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}
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void setSearchFieldControl (CSearchTextEdit* searchControl)
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{
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searchField = searchControl;
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searchField->setListener (this);
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}
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virtual bool add ()
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{
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if (dataBrowser && actionPerformer)
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{
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std::string newName (filterString.empty () ? "New" : filterString.data ());
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if (createUniqueName (newName))
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{
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addItem (newName.data ());
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int32_t row = selectName (newName.data ());
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if (row != -1)
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{
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dbOnMouseDown (CPoint (0, 0), CButtonState (kLButton|kDoubleClick), row, 0, dataBrowser);
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return true;
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}
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}
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}
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return false;
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}
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virtual bool remove ()
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{
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if (dataBrowser && actionPerformer)
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{
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int32_t selectedRow = dataBrowser->getSelectedRow ();
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if (selectedRow != CDataBrowser::kNoSelection)
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{
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removeItem (names.at (static_cast<uint32_t> (selectedRow)).data ());
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dbSelectionChanged (dataBrowser);
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dataBrowser->setSelectedRow (selectedRow);
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return true;
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}
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}
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return false;
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}
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virtual void setFilter (const UTF8String& filter)
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{
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if (filterString != filter)
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{
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filterString = filter;
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int32_t selectedRow = dataBrowser ? dataBrowser->getSelectedRow () : CDataBrowser::kNoSelection;
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std::string selectedName;
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if (selectedRow != CDataBrowser::kNoSelection)
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selectedName = names.at (static_cast<uint32_t> (selectedRow));
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update ();
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if (selectedRow != CDataBrowser::kNoSelection)
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selectName (selectedName.data ());
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}
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}
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virtual int32_t selectName (UTF8StringPtr name)
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{
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int32_t index = 0;
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for (auto& it : names)
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{
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if (it == name)
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{
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dataBrowser->setSelectedRow (index, true);
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if (delegate)
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delegate->dbSelectionChanged (index, this);
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return index;
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}
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++index;
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}
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return -1;
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}
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protected:
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virtual void getNames (std::list<const std::string*>& names) = 0;
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virtual bool addItem (UTF8StringPtr name) = 0;
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virtual bool removeItem (UTF8StringPtr name) = 0;
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virtual bool performNameChange (UTF8StringPtr oldName, UTF8StringPtr newName) = 0;
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virtual UTF8StringPtr getDefaultsName () = 0;
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virtual void update ()
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{
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if (textEditControl)
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textEditControl->looseFocus ();
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names.clear ();
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std::list<const std::string*> tmpNames;
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getNames (tmpNames);
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std::string filter = filterString.getString ();
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std::transform (filter.begin (), filter.end (), filter.begin (), ::tolower);
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for (auto& name : tmpNames)
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{
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if (!filter.empty ())
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{
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std::string tmp (*name);
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std::transform (tmp.begin (), tmp.end (), tmp.begin (), ::tolower);
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if (tmp.find (filter) == std::string::npos)
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continue;
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}
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if (name->find ("~ ") == 0)
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continue; // don't show static items
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names.emplace_back (UTF8String (*name));
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}
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bool vsbIsVisible = false;
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if (dataBrowser)
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{
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if (auto vsb = dataBrowser->getVerticalScrollbar ())
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vsbIsVisible = vsb->isVisible ();
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}
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setStringList (&names);
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if (dataBrowser)
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{
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if (auto vsb = dataBrowser->getVerticalScrollbar ())
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{
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if (vsb->isVisible() != vsbIsVisible)
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dataBrowser->recalculateLayout ();
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}
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}
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}
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void beforeUIDescSave (UIDescription* desc) override
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{
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saveDefaults ();
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};
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void onUIDescriptionUpdate ()
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{
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int32_t selectedRow = dataBrowser ? dataBrowser->getSelectedRow () : CDataBrowser::kNoSelection;
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std::string selectedName;
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if (selectedRow != CDataBrowser::kNoSelection)
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selectedName = names.at (static_cast<uint32_t> (selectedRow));
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update ();
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if (selectedRow != CDataBrowser::kNoSelection)
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selectName (selectedName.data ());
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}
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virtual void saveDefaults ()
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{
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UTF8StringPtr name = getDefaultsName ();
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if (name)
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{
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auto attributes = description->getCustomAttributes (name, true);
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if (attributes)
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{
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attributes->setAttribute ("FilterString", filterString.getString ());
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if (dataBrowser)
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{
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int32_t selectedRow = dataBrowser->getSelectedRow ();
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attributes->setIntegerAttribute ("SelectedRow", selectedRow);
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}
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}
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}
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}
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virtual void loadDefaults ()
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{
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UTF8StringPtr name = getDefaultsName ();
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if (name)
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{
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auto attributes = description->getCustomAttributes (name, true);
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if (attributes)
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{
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const std::string* str = attributes->getAttributeValue ("FilterString");
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if (str)
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setFilter (str->data ());
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if (dataBrowser)
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{
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int32_t selectedRow;
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if (attributes->getIntegerAttribute("SelectedRow", selectedRow))
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dataBrowser->setSelectedRow (selectedRow, true);
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}
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}
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}
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}
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void dbAttached (CDataBrowser* browser) override
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{
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GenericStringListDataBrowserSource::dbAttached (browser);
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update ();
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loadDefaults ();
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if (searchField)
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searchField->setText (filterString);
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}
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void dbRemoved (CDataBrowser* browser) override
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{
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saveDefaults ();
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GenericStringListDataBrowserSource::dbRemoved (browser);
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}
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void valueChanged (CControl* control) override
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{
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CTextEdit* edit = dynamic_cast<CTextEdit*>(control);
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if (edit)
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setFilter (edit->getText ());
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}
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bool createUniqueName (std::string& name, int32_t count = 0)
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{
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std::stringstream str;
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str << name;
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if (count)
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{
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str << ' ';
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str << count;
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}
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for (auto& it : names)
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{
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if (it == str.str ())
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return createUniqueName (name, count+1);
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}
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name = str.str ();
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return true;
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}
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CMouseEventResult dbOnMouseDown (const CPoint& where, const CButtonState& buttons, int32_t row, int32_t column, CDataBrowser* browser) override
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{
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if (buttons.isLeftButton () && buttons.isDoubleClick ())
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{
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browser->beginTextEdit (CDataBrowser::Cell (row, column), names.at (static_cast<uint32_t> (row)).data ());
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}
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return kMouseDownEventHandledButDontNeedMovedOrUpEvents;
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}
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void dbCellTextChanged (int32_t _row, int32_t column, UTF8StringPtr newText, CDataBrowser* browser) override
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{
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textEditControl = nullptr;
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if (_row < 0 || _row >= static_cast<int32_t> (names.size ()))
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return;
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auto row = static_cast<size_t> (_row);
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for (auto& name : names)
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{
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if (name == newText)
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return;
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}
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auto& currentName = names.at (row);
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if (performNameChange (currentName.data (), newText))
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{
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if (selectName (newText) == -1 && row < names.size ())
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selectName (names.at (row).data ());
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}
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}
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void dbCellSetupTextEdit (int32_t row, int32_t column, CTextEdit* control, CDataBrowser* browser) override
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{
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textEditControl = control;
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textEditControl->setBackColor (kWhiteCColor);
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textEditControl->setFontColor (fontColor);
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textEditControl->setFont (drawFont);
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textEditControl->setHoriAlign (textAlignment);
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textEditControl->setTextInset (textInset);
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}
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SharedPointer<UIDescription> description;
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SharedPointer<CSearchTextEdit> searchField;
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SharedPointer<CTextEdit> textEditControl;
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IActionPerformer* actionPerformer;
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StringVector names;
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UTF8String filterString;
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};
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} // VSTGUI
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#endif // VSTGUI_LIVE_EDITING
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