patch from Rob Stevens to add dragndrop-reordering of the tabs

2 files changed, 113 insertions, 0 deletions

diff --git a/src/FbWinFrame.cc b/src/FbWinFrame.cc
index 06c53f6..7f4b4c8 100644
--- a/src/FbWinFrame.cc
+++ b/src/FbWinFrame.cc
@@ -357,6 +357,113 @@ void FbWinFrame::moveLabelButtonRight(const FbTk::TextButton &btn) {
     redrawTitle();
 }
 
+void FbWinFrame::moveLabelButtonTo(FbTk::TextButton &btn, int x, int y) {
+        Window parent_return=0,
+               root_return=75,
+               *children_return=NULL;
+        unsigned int nchildren_return;
+        //get the root window
+        if(!XQueryTree(FbTk::App::instance()->display(), window().window(),
+                        &root_return, &parent_return, &children_return, &nchildren_return))
+                parent_return=parent_return;//return;
+        if(children_return!=NULL)
+                XFree(children_return);
+        int dest_x=0, dest_y=0;
+        Window labelbutton=0;
+        if(!XTranslateCoordinates(FbTk::App::instance()->display(),
+                                root_return, label().window(),
+                                x,y, &dest_x, &dest_y,
+                                &labelbutton))
+                return;
+        LabelList::iterator it = m_labelbuttons.begin();
+        LabelList::iterator it_end = m_labelbuttons.end();
+        //find the label button to move next to
+        for(; it!=it_end; it++) {
+                if( (*it)->window()==labelbutton)
+                        break;
+        }
+        //label button not found
+        if(it==it_end)
+                return;
+        Window child_return=0;
+        //make x and y relative to our labelbutton
+        if(!XTranslateCoordinates(FbTk::App::instance()->display(),
+                                label().window(),labelbutton,
+                                dest_x,dest_y, &x, &y,
+                                &child_return))
+                return;
+        if(x>(*it)->width()/2)
+                moveLabelButtonRightOf(btn,**it);
+        else
+                moveLabelButtonLeftOf(btn,**it);
+
+}
+
+
+
+void FbWinFrame::moveLabelButtonLeftOf(const FbTk::TextButton &btn, const FbTk::TextButton &dest) {
+        LabelList::iterator it = find(m_labelbuttons.begin(),
+                                  m_labelbuttons.end(),
+                                  &btn);
+        LabelList::iterator new_pos = find(m_labelbuttons.begin(),
+                                       m_labelbuttons.end(),
+                                       &dest);
+
+        // make sure we found them
+        if (it == m_labelbuttons.end() || new_pos==m_labelbuttons.end())
+        {
+                cout<<"button to move not found"<<endl;
+                return;
+        }
+        //moving a button to the left of itself results in no change
+        if( new_pos == it)
+        {
+                cout<<"source and dest button are the same"<<endl;
+                return;
+        }
+        FbTk::TextButton *item = *it;
+        //remove from list
+        m_labelbuttons.erase(it);
+        //insert on the new place
+        m_labelbuttons.insert(new_pos, item);
+        //update titlebar
+        redrawTitle();
+}
+
+void FbWinFrame::moveLabelButtonRightOf(const FbTk::TextButton &btn, const FbTk::TextButton &dest) {
+        LabelList::iterator it = find(m_labelbuttons.begin(),
+                                  m_labelbuttons.end(),
+                                  &btn);
+        LabelList::iterator new_pos = find(m_labelbuttons.begin(),
+                                       m_labelbuttons.end(),
+                                       &dest);
+
+        // make sure we found them
+        if (it == m_labelbuttons.end() || new_pos==m_labelbuttons.end())
+        {
+                cout<<"button to move not found"<<endl;
+                return;
+        }
+        //moving a button to the right of itself results in no change
+        if( new_pos == it)
+        {
+                cout<<"source and dest button are the same"<<endl;
+                return;
+        }
+        FbTk::TextButton *item = *it;
+        //remove from list
+        m_labelbuttons.erase(it);
+        //need to insert into the next position
+        new_pos++;
+        //insert on the new place
+        if(new_pos == m_labelbuttons.end())
+                m_labelbuttons.push_back(item);
+        else
+                m_labelbuttons.insert(new_pos, item);
+        //update titlebar
+        redrawTitle();
+}
+
 void FbWinFrame::setLabelButtonFocus(FbTk::TextButton &btn) {
     if (&btn == currentLabel())
         return;
diff --git a/src/FbWinFrame.hh b/src/FbWinFrame.hh
index 88fe51a..1ff7709 100644
--- a/src/FbWinFrame.hh
+++ b/src/FbWinFrame.hh
@@ -105,6 +105,12 @@ public:
     void moveLabelButtonLeft(const FbTk::TextButton &btn);
     /// move label button to the right
     void moveLabelButtonRight(const FbTk::TextButton &btn);
+    /// move label button to the given location( x and y are relative to the root window)
+    void moveLabelButtonTo(FbTk::TextButton &btn, int x, int y);
+    /// move the first label button to the left of the second
+    void moveLabelButtonLeftOf(const FbTk::TextButton &btn, const FbTk::TextButton &dest);
+    //move the first label button to the right of the second
+    void moveLabelButtonRightOf(const FbTk::TextButton &btn, const FbTk::TextButton &dest);
     /// which button is to be rendered focused
     void setLabelButtonFocus(FbTk::TextButton &btn);
     /// attach a client window for client area