Ichthyostega
8097485dbf
This finishes the first round of design drafts in this area. Right now it seems difficult to get any further, since most of the actual view creation and management in the UI is not yet coded.
111 lines
3.9 KiB
C++
111 lines
3.9 KiB
C++
/*
|
|
ViewLocator - access and allocation of UI component views
|
|
|
|
Copyright (C) Lumiera.org
|
|
2017, Hermann Vosseler <Ichthyostega@web.de>
|
|
|
|
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.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program; if not, write to the Free Software
|
|
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
|
|
|
|
* *****************************************************/
|
|
|
|
|
|
/** @file view-locator.cpp
|
|
** Implementation details of a machinery to allocate UI global component views.
|
|
** Essentially this compilation unit hosts the implementation backing the [ViewSpec-DSL](view-spec-dsl.hpp)
|
|
** and the [Location Solver](ui-location-solver.hpp) to drive evaluation of the standard location defaults,
|
|
** which are [hard-wired into the UI](\ref id-scheme.hpp). For this integration of various facilities and
|
|
** frameworks we rely on actual definitions for the DSL-tokens, which themselves are functors and tied by
|
|
** lambda-binding into the implementation side of ViewLocator; which both acts as a front-end to access
|
|
** the service to "get or create" a component and also holds the UILocationSolver component to perform
|
|
** the actual location solving mechanism. The DSL thus sits between both poles, since _resolving a view_
|
|
** draws upon the default locating configuration encoded as DSL tokens, which in turn call back into
|
|
** the implementation services within ViewLocator to resolve those partial location specifications
|
|
** against the currently existing UI topology and then to access or create new UI components as
|
|
** laid out through those definitions.
|
|
**
|
|
** @todo WIP 9/2017 early draft ////////////////////////////////////////////////////////////TICKET #1104
|
|
*/
|
|
|
|
|
|
#include "gui/gtk-base.hpp"
|
|
#include "gui/interact/view-locator.hpp"
|
|
#include "gui/interact/view-spec-dsl.hpp"
|
|
#include "gui/interact/ui-location-solver.hpp"
|
|
#include "gui/ctrl/panel-locator.hpp"
|
|
#include "gui/model/element-access.hpp"
|
|
#include "gui/interact/ui-coord-resolver.hpp"
|
|
#include "lib/depend.hpp"
|
|
#include "lib/symbol.hpp"
|
|
//#include "lib/util.hpp"
|
|
|
|
//using util::cStr;
|
|
//using util::isnil;
|
|
using lib::Symbol;
|
|
//using gui::ctrl::PanelLocator;
|
|
//using gui::ctrl::WindowLocator;
|
|
using gui::model::ElementAccess;
|
|
|
|
|
|
namespace gui {
|
|
namespace error = lumiera::error;
|
|
|
|
|
|
|
|
/* ==== definitions and concrete bindings for the View-Spec-DSL ==== */
|
|
|
|
namespace idi { // Namespace for the actual ViewSpec DSL tokens
|
|
|
|
|
|
AllocSpec<uint> limitAllocation =[](UICoord target, uint limit)
|
|
{
|
|
lib::Depend<model::ElementAccess> rawElementAccessor;
|
|
return rawElementAccessor().locate_or_create (target, limit);
|
|
};
|
|
|
|
}
|
|
namespace interact {
|
|
|
|
const Symbol UIC_CURRENT_WINDOW{"currentWindow"};
|
|
const Symbol UIC_FIRST_WINDOW {"firstWindow"};
|
|
const Symbol UIC_ELIDED {"."};
|
|
|
|
|
|
|
|
|
|
ViewLocator::ViewLocator ()
|
|
: locResolver_{LocationQuery::service}
|
|
{ }
|
|
|
|
// dtors via smart-ptr invoked from here...
|
|
ViewLocator::~ViewLocator() { }
|
|
|
|
|
|
|
|
/* === Service accessors within global context === */
|
|
|
|
// PanelLocator&
|
|
// ViewLocator::panelLocator()
|
|
// {
|
|
// return windowLoc_.locatePanel();
|
|
// }
|
|
|
|
|
|
|
|
|
|
/** */
|
|
|
|
|
|
|
|
}}// namespace gui::interact
|