// CascadePlacement.cc
// Copyright (c) 2006 Fluxbox Team (fluxgen at fluxbox dot org)
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the "Software"),
// to deal in the Software without restriction, including without limitation
// the rights to use, copy, modify, merge, publish, distribute, sublicense,
// and/or sell copies of the Software, and to permit persons to whom the
// Software is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.

#include "CascadePlacement.hh"

#include "Window.hh"
#include "Screen.hh"

CascadePlacement::CascadePlacement(const BScreen &screen) {
    m_cascade_x = new int[screen.numHeads() + 1];
    m_cascade_y = new int[screen.numHeads() + 1];
    for (int i=0; i < screen.numHeads() + 1; i++) {
        m_cascade_x[i] = screen.maxRight(i);
        m_cascade_y[i] = screen.maxBottom(i);
    }
}

CascadePlacement::~CascadePlacement() {
    delete [] m_cascade_x;
    delete [] m_cascade_y;
}

bool CascadePlacement::placeWindow(const FluxboxWindow &win, int head,
                                   int &place_x, int &place_y) {

    int head_left = (signed) win.screen().maxLeft(head);
    int head_right = (signed) win.screen().maxRight(head);
    int head_top = (signed) win.screen().maxTop(head);
    int head_bot = (signed) win.screen().maxBottom(head);

    if (m_cascade_x[head] > ((head_left + head_right) / 2))
        m_cascade_x[head] = head_left;
    if (m_cascade_y[head] > ((head_top + head_bot) / 2))
        m_cascade_y[head] = head_top;

    place_x = m_cascade_x[head];
    place_y = m_cascade_y[head];

    // just one borderwidth, so they can share a borderwidth (looks better)
    int titlebar_height = 
        win.titlebarHeight() + win.fbWindow().borderWidth();
    if (titlebar_height < 4) // make sure it is not insignificant
        titlebar_height = 32;

    m_cascade_x[head] += titlebar_height;
    m_cascade_y[head] += titlebar_height;

    return true;
}