New Layer System

1 files changed, 186 insertions, 0 deletions

diff --git a/src/FbTk/XLayer.cc b/src/FbTk/XLayer.cc
new file mode 100644
index 0000000..786cefe
--- /dev/null
+++ b/src/FbTk/XLayer.cc
@@ -0,0 +1,186 @@
+// XLayer.cc for FbTk - fluxbox toolkit
+// Copyright (c) 2003 Henrik Kinnunen (fluxgen at users.sourceforge.net)
+//                and Simon Bowden    (rathnor at users.sourceforge.net)
+//
+// 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.
+
+// $Id: XLayer.cc,v 1.1 2003/01/16 12:41:27 rathnor Exp $
+
+#include "XLayer.hh"
+#include "XLayerItem.hh"
+#include "App.hh"
+
+#include <iostream>
+using namespace std;
+using namespace FbTk;
+
+XLayer::XLayer(MultLayers &manager, int layernum):
+    m_manager(manager), m_layernum(layernum) {
+}
+
+XLayer::~XLayer() {
+}
+
+void XLayer::restack() {
+    int numWindows = size();
+    Window *winlist = new Window[numWindows];
+    typedef FbTk::Layer<XLayerItem> BaseClass;
+    iterator it = itemList().begin();
+    iterator it_end = itemList().end();
+    for (size_t i=0; it != it_end; ++it, i++) {
+        winlist[i] = (*it)->window();
+    }
+
+    XRestackWindows(FbTk::App::instance()->display(), winlist, numWindows);
+
+    delete [] winlist;
+}
+
+void XLayer::stackBelowItem(XLayerItem *item, XLayerItem *above) {
+    // little optimisation
+    if (!above) { // must need to go right to top
+        XRaiseWindow(FbTk::App::instance()->display(), item->window());
+        return;
+    }
+
+    Window * winlist = new Window[2];
+    winlist[0] = above->window();
+    winlist[1] = item->window();
+    
+    XRestackWindows(FbTk::App::instance()->display(), winlist, 2);
+
+    delete [] winlist;
+}
+
+XLayer::iterator XLayer::insert(XLayerItem &item, unsigned int pos) {
+#ifdef DEBUG
+    if (pos != 0)
+        cerr<<__FILE__<<"("<<__LINE__<<"): Insert using non-zero position not valid in XLayer"<<endl;
+#endif // DEBUG
+    
+    itemList().push_front(&item);
+    item.setLayer(*this);
+    // restack below next window up
+    item.setLayerIterator(itemList().begin());
+    stackBelowItem(&item, m_manager.getLowestItemAboveLayer(m_layernum));
+    return itemList().begin();
+}
+
+void XLayer::remove(XLayerItem &item) {
+    itemList().erase(item.getLayerIterator());
+}
+
+void XLayer::cycleUp() {
+    // need to find highest visible window, and move it to bottom
+    iterator it = itemList().begin();
+    iterator it_end = itemList().end();
+    while (it != it_end && !(*it)->visible()) ++it;
+    
+    // if there is something to do
+    if (it != it_end) {
+        lower(**it);
+    }
+}
+
+void XLayer::cycleDown() {
+    // need to find highest visible window, and move it to bottom
+    reverse_iterator it = itemList().rbegin();
+    reverse_iterator it_end = itemList().rend();
+    while (it != it_end && !(*it)->visible()) ++it;
+    
+    // if there is something to do
+    if (it != it_end) {
+        raise(**it);
+    }
+    
+}
+
+void XLayer::stepUp(XLayerItem &item) {
+    // need to find next visible window upwards, and put it above that
+
+    if (&item == itemList().front()) return; // nothing to do
+
+    // TODO: is there a better way of doing this?
+    iterator it = item.getLayerIterator();
+    it--;
+    while ((*it) != itemList().front() && !(*it)->visible()) --it;
+    
+    if (*it == itemList().front() && !(*it)->visible()) {
+        // reached front item, but it wasn't visible, therefore it was already raised
+        //moveToBottom(item);
+    } else {
+        // it is the next visible item down, we need to be above it.
+        itemList().erase(item.getLayerIterator());
+        //itemList().insert(it, item);
+        item.setLayerIterator(it = itemList().insert(it, &item));
+        if (*it == itemList().front()) {
+            stackBelowItem(&item, m_manager.getLowestItemAboveLayer(m_layernum));
+        } else {
+            it--;
+            stackBelowItem(&item, *it);
+        }
+    }
+}
+
+void XLayer::stepDown(XLayerItem &item) {
+    // need to find next visible window down, and put it below that
+    if (&item == itemList().back()) return; // nothing to do
+
+
+    iterator it = item.getLayerIterator();
+    it++;
+    iterator it_end = itemList().end();
+    while (it != it_end && !(*it)->visible()) ++it;
+
+    if (it != it_end) {
+        stackBelowItem(&item, *it);
+    }
+}
+
+void XLayer::raise(XLayerItem &item) {
+    // assume it is already in this layer
+
+    if (&item == itemList().front()) 
+        return; // nothing to do
+
+    itemList().erase(item.getLayerIterator());
+    itemList().push_front(&item);
+    item.setLayerIterator(itemList().begin());
+    stackBelowItem(&item, m_manager.getLowestItemAboveLayer(m_layernum));
+    
+}
+
+void XLayer::lower(XLayerItem &item) {
+    // assume already in this layer
+    if (&item == itemList().back()) 
+        return; // nothing to do
+
+    itemList().erase(item.getLayerIterator());
+    itemList().push_back(&item);
+    iterator it = itemList().end();
+    it--;
+    item.setLayerIterator(it);
+    it--;
+    stackBelowItem(&item, *it); // must exist, otherwise item must == itemList().back()
+}
+
+XLayerItem *XLayer::getLowestItem() {
+    if (itemList().empty()) return 0;
+    else return itemList().back();
+}