Copying panel from old ede

ede-panel/panelbutton.cpp

@@ -0,0 +1,163 @@
+// Copyright (c) 2000. - 2005. EDE Authors
+// This program is licenced under terms of the
+// GNU General Public Licence version 2 or newer.
+// See COPYING for details.
+
+#include <stdio.h>
+#include <efltk/Fl.h>
+#include <efltk/Fl_Menu_Button.h>
+#include <efltk/fl_draw.h>
+#include <efltk/Fl_Group.h>
+#include <efltk/Fl_Item.h>
+
+#include "panelbutton.h"
+
+extern Fl_Widget* fl_did_clipping;
+
+
+// class PanelMenu 
+// This is a standard eworkpanel applet class. It is a button that pops
+// up menu when pressed. Typical use is workspace switcher.
+
+PanelMenu::PanelMenu(int x, int y, int w, int h, Fl_Boxtype up_c, Fl_Boxtype down_c, const char *label)
+    : Fl_Menu_Button(x, y, w, h, label)
+{
+    m_open = false;
+    Height = 0;
+    up = up_c;
+    down = down_c;
+
+    anim_speed(2);
+    anim_flags(BOTTOM_TO_TOP);
+    accept_focus(false);
+}
+
+
+// This function is modified from Fl_Menu_Button
+
+void PanelMenu::draw()
+{
+    Fl_Boxtype box = up;
+    Fl_Flags flags;
+    Fl_Color color;
+
+    if (!active_r()) {
+        // Button is disabled
+        flags = FL_INACTIVE;
+        color = this->color();
+    } else if (m_open) {
+        // Menu is open, make the button pushed and highlighted
+        flags = FL_HIGHLIGHT;
+        color = highlight_color();
+        if (!color) color = this->color();
+        box = down;
+    } else if (belowmouse()) {
+        // Menu is not open, but button is below mouse - highlight
+        flags = FL_HIGHLIGHT;
+        color = highlight_color();
+        if (!color) color = this->color();
+    } else {
+        // Plain
+        flags = 0;
+        color = this->color();
+    }
+
+    if(!box->fills_rectangle()) {
+        fl_push_clip(0, 0, this->w(), this->h());
+        parent()->draw_group_box();
+        fl_pop_clip();
+    }
+
+    box->draw(0, 0, this->w(), this->h(), color, flags);
+
+    int x,y,w,h;
+    x = y = 0;
+    w = this->w(); h = this->h();
+    box->inset(x,y,w,h);
+    draw_inside_label(x,y,w,h,flags);
+}
+
+
+// Used to properly redraw menu
+
+void PanelMenu::calculate_height()
+{
+    Fl_Style *s = Fl_Style::find("Menu");
+    Height = s->box->dh();
+    for(int n=0; n<children(); n++)
+    {
+        Fl_Widget *i = child(n);
+        if(!i) break;
+        if(!i->visible()) continue;
+        fl_font(i->label_font(), i->label_size());
+        Height += i->height()+s->leading;
+    }
+}
+
+
+// Popup the menu. Global property m_open is useful to detect 
+// if the menu is visible, e.g. to disable autohiding panel.
+
+int PanelMenu::popup()
+{
+    m_open = true;
+    redraw(); // push down button
+    calculate_height();
+    int newy=0-Height;
+    Fl_Widget* panel = parent()->parent()->parent(); // ugh
+    if (panel->y()+newy<1) newy=parent()->h();
+    int retval = Fl_Menu_::popup(0, newy);//, w(), h());
+    m_open = false;
+    redraw();
+    return retval;
+}
+
+
+// class PanelButton 
+// A simplified case of PanelMenu - by Vedran
+// Used e.g. by show desktop button
+
+PanelButton::PanelButton(int x, int y, int w, int h, Fl_Boxtype up_c, Fl_Boxtype down_c, const char *label)
+    : Fl_Button(x, y, w, h, label)
+{
+//    Height = 0;
+    up = up_c;
+    down = down_c;
+    accept_focus(false);
+}
+
+
+void PanelButton::draw()
+{
+    Fl_Boxtype box = up;
+    Fl_Flags flags;
+    Fl_Color color;
+
+    if (belowmouse())
+    {
+        // Highlight button when below mouse
+        flags = FL_HIGHLIGHT;
+        color = highlight_color();
+        if (!color) color = this->color();
+//        box = down;
+    } else {
+        flags = 0;
+        color = this->color();
+    }
+    
+    if (value()) box=down; // Push down button when pressed
+
+    if(!box->fills_rectangle()) {
+        fl_push_clip(0, 0, this->w(), this->h());
+        parent()->draw_group_box();
+        fl_pop_clip();
+    }
+
+    box->draw(0, 0, this->w(), this->h(), color, flags);
+
+    int x,y,w,h;
+    x = y = 0;
+    w = this->w(); h = this->h();
+    box->inset(x,y,w,h);
+    draw_inside_label(x,y,w,h,flags);
+}