scummvm/gui/object.cpp
Bastien Bouclet c0d8b6d9fc GUI: Introduce dynamic layouts
Prior to this change, a GUI layout was only affected by the screen size.
Now, a layout can additionally be influenced by the GUI dialog and widgets
that uses it. This capability is leveraged to implement the following
features:

* Layout elements that are not bound to a GUI widget do not take space.
   This means that dialogs where the widgets shown depend on for example
   a feature being enabled at configure time no longer have blank spaces.
* Widgets can define a minimal required size for their contents not to be
   cut. For now this is only used for buttons so their width is always
   sufficient for their caption not to be cut. This mechanism could be
   applied to other widget types in the future.
2020-01-04 10:56:25 +01:00

74 lines
2.0 KiB
C++

/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
*/
#include "common/textconsole.h"
#include "gui/object.h"
#include "gui/widget.h"
#include "gui/gui-manager.h"
#include "gui/ThemeEval.h"
namespace GUI {
GuiObject::GuiObject(const Common::String &name)
: _x(-1000), _y(-1000), _w(0), _h(0), _name(name), _firstWidget(nullptr) {
}
GuiObject::~GuiObject() {
delete _firstWidget;
_firstWidget = 0;
}
void GuiObject::reflowLayout() {
if (!_name.empty()) {
if (!g_gui.xmlEval()->getWidgetData(_name, _x, _y, _w, _h)) {
error("Could not load widget position for '%s'", _name.c_str());
}
}
}
void GuiObject::removeWidget(Widget *del) {
if (del == _firstWidget) {
Widget *del_next = del->next();
del->setNext(0);
_firstWidget = del_next;
return;
}
Widget *w = _firstWidget;
while (w) {
if (w->next() == del) {
Widget *del_next = del->next();
del->setNext(0);
w->setNext(del_next);
return;
}
w = w->next();
}
}
Common::Rect GuiObject::getClipRect() const {
return Common::Rect(getAbsX(), getAbsY(), getAbsX() + getWidth(), getAbsY() + getHeight());
}
} // End of namespace GUI