87 lines
3.2 KiB
C++
87 lines
3.2 KiB
C++
// HeadArea.cc for Fluxbox Window Manager
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// Copyright (c) 2004 - 2006 Mathieu De Zutter (mathieu at dezutter dot org)
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//
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// Permission is hereby granted, free of charge, to any person obtaining a
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// copy of this software and associated documentation files (the "Software"),
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// to deal in the Software without restriction, including without limitation
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// the rights to use, copy, modify, merge, publish, distribute, sublicense,
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// and/or sell copies of the Software, and to permit persons to whom the
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// Software is furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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// DEALINGS IN THE SOFTWARE.
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#include "HeadArea.hh"
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#include "Strut.hh"
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#include <algorithm>
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#include <iostream>
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HeadArea::HeadArea() : m_available_workspace_area(new Strut(0,0,0,0,0)) {
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}
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Strut *HeadArea::requestStrut(int head, int left, int right, int top, int bottom, Strut* next) {
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Strut *str = new Strut(head, left, right, top, bottom, next);
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m_strutlist.push_back(str);
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return str;
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}
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void HeadArea::clearStrut(Strut *str) {
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if (str == 0)
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return;
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// find strut and erase it
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std::list<Strut *>::iterator pos = std::find(m_strutlist.begin(),
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m_strutlist.end(),
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str);
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if (pos == m_strutlist.end()) {
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std::cerr << "clearStrut() failed because the strut was not found" << std::endl;
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return;
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}
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m_strutlist.erase(pos);
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delete str;
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}
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/// helper class for for_each in HeadArea::updateAvailableWorkspaceArea()
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namespace {
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class MaxArea {
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public:
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MaxArea(Strut &max_area):m_available_workspace_area(max_area) { }
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void operator ()(const Strut *str) {
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static int left, right, bottom, top;
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left = std::max(m_available_workspace_area.left(), str->left());
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right = std::max(m_available_workspace_area.right(), str->right());
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bottom = std::max(m_available_workspace_area.bottom(), str->bottom());
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top = std::max(m_available_workspace_area.top(), str->top());
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m_available_workspace_area = Strut(0, left, right, top, bottom);
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}
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private:
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Strut &m_available_workspace_area;
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};
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} // end anonymous namespace
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bool HeadArea::updateAvailableWorkspaceArea() {
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// find max of left, right, top and bottom and set avaible workspace area
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// clear old area
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Strut oldarea = *(m_available_workspace_area.get());
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m_available_workspace_area.reset(new Strut(0, 0, 0, 0, 0));
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// calculate max area
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std::for_each(m_strutlist.begin(),
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m_strutlist.end(),
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MaxArea(*m_available_workspace_area.get()));
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// only notify if the area changed
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return !(oldarea == *(m_available_workspace_area.get()));
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}
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