fluxbox/src/FbTk/Menu.cc
2006-07-11 03:20:41 +00:00

1307 lines
36 KiB
C++

// Menu.cc for FbTk - Fluxbox Toolkit
// Copyright (c) 2001 - 2006 Henrik Kinnunen (fluxgen at fluxbox dot org)
//
// Basemenu.cc for blackbox - an X11 Window manager
// Copyright (c) 1997 - 2000 Brad Hughes (bhughes at tcac.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.
// $Id$
//use GNU extensions
#ifndef _GNU_SOURCE
#define _GNU_SOURCE
#endif // _GNU_SOURCE
#include "Menu.hh"
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif //HAVE_CONFIG_H
#include "MenuItem.hh"
#include "MenuSeparator.hh"
#include "ImageControl.hh"
#include "MenuTheme.hh"
#include "App.hh"
#include "EventManager.hh"
#include "Transparent.hh"
#include "SimpleCommand.hh"
#include "FbPixmap.hh"
#include <X11/Xatom.h>
#include <X11/keysym.h>
#ifdef HAVE_CSTDIO
#include <cstdio>
#else
#include <stdio.h>
#endif
#ifdef HAVE_CSTDLIB
#include <cstdlib>
#else
#include <stdlib.h>
#endif
#ifdef HAVE_CSTRING
#include <cstring>
#else
#include <string.h>
#endif
#include <iostream>
#include <typeinfo>
using namespace std;
namespace FbTk {
static Menu *shown = 0;
Menu *Menu::s_focused = 0;
Menu::Menu(MenuTheme &tm, ImageControl &imgctrl):
m_theme(tm),
m_parent(0),
m_image_ctrl(imgctrl),
m_screen_x(0),
m_screen_y(0),
m_screen_width(DisplayWidth(FbTk::App::instance()->display(), tm.screenNum())),
m_screen_height(DisplayHeight(FbTk::App::instance()->display(), tm.screenNum())),
m_alignment(ALIGNDONTCARE),
m_active_index(-1),
m_need_update(true) {
// setup timers
RefCount<Command> show_cmd(new SimpleCommand<Menu>(*this, &Menu::openSubmenu));
m_submenu_timer.setCommand(show_cmd);
m_submenu_timer.fireOnce(true);
RefCount<Command> hide_cmd(new SimpleCommand<Menu>(*this, &Menu::closeMenu));
m_hide_timer.setCommand(hide_cmd);
m_hide_timer.fireOnce(true);
// make sure we get updated when the theme is reloaded
tm.reconfigSig().attach(this);
m_title_vis = true;
m_shifted =
m_internal_menu =
m_moving =
m_torn =
m_visible = false;
menu.x_shift =
menu.y_shift =
menu.x_move =
menu.y_move = 0;
m_which_sub =
m_which_press =
m_which_sbl = -1;
menu.frame_pixmap =
menu.title_pixmap =
menu.hilite_pixmap = None;
menu.item_w = menu.frame_h =
theme().titleFont().height() + theme().bevelWidth() * 2;
menu.sublevels =
menu.persub =
menu.minsub = 0;
long event_mask = ButtonPressMask | ButtonReleaseMask |
ButtonMotionMask | KeyPressMask | ExposureMask | FocusChangeMask;
// create menu window
menu.window = FbTk::FbWindow(tm.screenNum(),
0, 0, 10, 10,
event_mask,
true, // override redirect
true); // save_under
// strip focus change mask from attrib, since we should only use it with main window
event_mask ^= FocusChangeMask;
FbTk::EventManager &evm = *FbTk::EventManager::instance();
evm.add(*this, menu.window);
event_mask |= EnterWindowMask | LeaveWindowMask;
//create menu title
menu.title = FbTk::FbWindow(menu.window, // parent
0, 0, width(), theme().titleHeight(), // pos and size
event_mask, // mask
false, // override redirect
true); // save under
evm.add(*this, menu.title);
menu.title.setRenderer(*this);
event_mask |= PointerMotionMask;
menu.frame = FbTk::FbWindow(menu.window, // parent
0, theme().titleHeight(), // pos
width(), menu.frame_h ? menu.frame_h : 1, // size
event_mask, // mask
false, // override redirect
true); // save under
evm.add(*this, menu.frame);
menu.frame.setRenderer(*this);
menu.title.raise();
reconfigure();
}
Menu::~Menu() {
menu.window.hide();
if (shown && shown->window() == window())
shown = 0;
removeAll();
if (menu.title_pixmap)
m_image_ctrl.removeImage(menu.title_pixmap);
if (menu.frame_pixmap)
m_image_ctrl.removeImage(menu.frame_pixmap);
if (menu.hilite_pixmap)
m_image_ctrl.removeImage(menu.hilite_pixmap);
if (s_focused == this)
s_focused = 0;
}
int Menu::insert(const FbString &label, RefCount<Command> &cmd, int pos) {
return insert(new MenuItem(label, cmd), pos);
}
int Menu::insert(const FbString &label, int pos) {
return insert(new MenuItem(label), pos);
}
int Menu::insert(const FbString &label, Menu *submenu, int pos) {
submenu->m_parent = this;
return insert(new MenuItem(label, submenu), pos);
}
int Menu::insert(MenuItem *item, int pos) {
if (pos == -1) {
menuitems.push_back(item);
} else {
menuitems.insert(menuitems.begin() + pos, item);
}
m_need_update = true; // we need to redraw the menu
return menuitems.size();
}
int Menu::remove(unsigned int index) {
if (index >= menuitems.size()) {
#ifdef DEBUG
std::cout << "Bad index (" << index << ") given to Menu::remove()"
<< " -- should be between 0 and " << menuitems.size()
<< " inclusive." << std::endl;
#endif // DEBUG
return -1;
}
Menuitems::iterator it = menuitems.begin() + index;
MenuItem *item = (*it);
if (item) {
menuitems.erase(it);
if (item->submenu() != 0) {
Menu *tmp = item->submenu();
// if menu is internal we should just hide it instead
// if destroying it
if (! tmp->m_internal_menu) {
delete tmp;
}
// We can't internal_hide here, as the child may be deleted!
// } else
// tmp->internal_hide();
}
delete item;
}
if (static_cast<unsigned int>(m_which_sub) == index)
m_which_sub = -1;
else if (static_cast<unsigned int>(m_which_sub) > index)
m_which_sub--;
m_need_update = true; // we need to redraw the menu
return menuitems.size();
}
void Menu::removeAll() {
while (!menuitems.empty()) {
remove(0);
}
m_need_update = true;
}
void Menu::raise() {
menu.window.raise();
}
void Menu::lower() {
menu.window.lower();
}
void Menu::nextItem() {
if (menuitems.empty())
return;
int old_which_press = m_which_press;
m_active_index = -1;
if (validIndex(old_which_press) &&
menuitems[old_which_press] != 0) {
if (menuitems[old_which_press]->submenu()) {
// we need to do this explicitly on the menu.window
// since it might hide the parent if we use Menu::hide
menuitems[old_which_press]->submenu()->internal_hide();
}
clearItem(old_which_press);
}
// restore old in case we changed m_which_press
m_which_press = old_which_press + 1;
if (!validIndex(m_which_press))
m_which_press = 0;
if (menuitems[m_which_press] == 0) {
m_active_index = -1;
return;
}
if (!isItemSelectable(m_which_press)) {
nextItem();
return;
}
m_active_index = m_which_press;
clearItem(m_which_press);
}
void Menu::prevItem() {
if (menuitems.empty())
return;
int old_which_press = m_which_press;
m_active_index = -1;
if (validIndex(old_which_press)) {
if (menuitems[old_which_press]->submenu()) {
// we need to do this explicitly on the menu.window
// since it might hide the parent if we use Menu::hide
menuitems[old_which_press]->submenu()->internal_hide();
}
clearItem(old_which_press);
}
// restore old in case we changed m_which_press
m_which_press = old_which_press - 1;
if (!validIndex(m_which_press))
m_which_press = menuitems.size() - 1;
if (menuitems[m_which_press] == 0) {
m_active_index = -1;
return;
}
if (!isItemSelectable(m_which_press)) {
prevItem();
return;
}
m_active_index = m_which_press;
clearItem(m_which_press);
}
void Menu::enterSubmenu() {
if (!validIndex(m_which_press))
return;
Menu *submenu = menuitems[m_which_press]->submenu();
if (submenu == 0)
return;
if (submenu->menuitems.size() == 0)
return;
drawSubmenu(m_which_press);
submenu->grabInputFocus();
submenu->m_which_press = -1; // so we land on 0 after nextItem()
submenu->nextItem();
}
void Menu::enterParent() {
if (!validIndex(m_which_press) || parent() == 0)
return;
Menu *submenu = menuitems[m_which_press]->submenu();
if (submenu)
submenu->internal_hide();
m_active_index = -1;
//clearItem(m_which_press);
m_which_press = -1; // dont select any in this
// hide self
m_visible = false;
menu.window.hide();
// return focus to parent
parent()->grabInputFocus();
}
void Menu::disableTitle() {
setTitleVisibility(false);
}
void Menu::enableTitle() {
setTitleVisibility(true);
}
void Menu::updateMenu(int active_index) {
if (m_title_vis) {
menu.item_w = theme().titleFont().textWidth(menu.label,
menu.label.size());
menu.item_w += (theme().bevelWidth() * 2);
} else
menu.item_w = 1;
unsigned int ii = 0;
Menuitems::iterator it = menuitems.begin();
Menuitems::iterator it_end = menuitems.end();
for (; it != it_end; ++it) {
ii = (*it)->width(theme());
menu.item_w = (ii > menu.item_w ? ii : menu.item_w);
}
if (!menuitems.empty()) {
menu.sublevels = 1;
while (theme().itemHeight() * (menuitems.size() + 1) / menu.sublevels +
theme().titleHeight() + theme().borderWidth() > m_screen_height) {
menu.sublevels++;
}
if (menu.sublevels < menu.minsub)
menu.sublevels = menu.minsub;
menu.persub = menuitems.size() / menu.sublevels;
if (menuitems.size() % menu.sublevels) menu.persub++;
} else {
menu.sublevels = 0;
menu.persub = 0;
}
int itmp = (theme().itemHeight() * menu.persub);
menu.frame_h = itmp < 1 ? 1 : itmp;
unsigned int new_width = (menu.sublevels * menu.item_w);
unsigned int new_height = menu.frame_h;
if (m_title_vis)
new_height += theme().titleHeight() + ((menu.frame_h > 0)?menu.title.borderWidth():0);
if (new_width == 0) {
if (menu.item_w > 0)
new_width = menu.item_w;
else
new_width = 1;
}
if (new_height < 1)
new_height = 1;
// must update main window size whether visible or not
// the rest can wait until the end
if (menu.window.width() != new_width)
m_need_update = true;
menu.window.resize(new_width, new_height);
if (!isVisible())
return;
if (menu.frame.alpha() != alpha())
menu.frame.setAlpha(alpha());
Pixmap tmp = menu.hilite_pixmap;
const FbTk::Texture &hilite_tex = theme().hiliteTexture();
if (!hilite_tex.usePixmap()) {
menu.hilite_pixmap = None;
} else
menu.hilite_pixmap =
m_image_ctrl.renderImage(menu.item_w, theme().itemHeight(), hilite_tex);
if (tmp)
m_image_ctrl.removeImage(tmp);
if (!theme().selectedPixmap().pixmap().drawable()) {
int hw = theme().itemHeight() / 2;
m_theme.setSelectedPixmap(m_image_ctrl.renderImage(hw, hw, theme().hiliteTexture()), true);
if (!theme().highlightSelectedPixmap().pixmap().drawable()) {
int hw = theme().itemHeight() / 2;
m_theme.setHighlightSelectedPixmap(m_image_ctrl.renderImage(hw, hw, theme().frameTexture()), true);
}
}
if (m_title_vis) {
menu.title.moveResize(-menu.title.borderWidth(), -menu.title.borderWidth(),
width() + menu.title.borderWidth(), theme().titleHeight());
}
menu.frame.moveResize(0, ((m_title_vis) ? menu.title.y() + menu.title.height() +
menu.title.borderWidth()*2 : 0),
width(), menu.frame_h);
if (m_title_vis && m_need_update) {
tmp = menu.title_pixmap;
const FbTk::Texture &tex = theme().titleTexture();
if (!tex.usePixmap()) {
menu.title_pixmap = None;
menu.title.setBackgroundColor(tex.color());
} else {
menu.title_pixmap =
m_image_ctrl.renderImage(width(), theme().titleHeight(), tex);
// set pixmap that we have as real face to the user
menu.title.setBackgroundPixmap(menu.title_pixmap);
}
if (tmp)
m_image_ctrl.removeImage(tmp);
}
tmp = menu.frame_pixmap;
const FbTk::Texture &frame_tex = theme().frameTexture();
if (m_need_update) {
if (!frame_tex.usePixmap()) {
menu.frame_pixmap = None;
menu.frame.setBackgroundColor(frame_tex.color());
} else {
menu.frame_pixmap =
m_image_ctrl.renderImage(width(), menu.frame_h, frame_tex);
menu.frame.setBackgroundPixmap(menu.frame_pixmap);
}
if (tmp)
m_image_ctrl.removeImage(tmp);
}
clearWindow();
m_need_update = false;
}
void Menu::show() {
if (isVisible())
return;
m_visible = true;
if (m_need_update)
updateMenu();
menu.window.showSubwindows();
menu.window.show();
raise();
if (! m_parent && shown != this) {
if (shown && (! shown->m_torn))
shown->hide();
shown = this;
}
}
void Menu::hide() {
if (!isVisible())
return;
// if not m_torn and parent is m_visible, go to first parent
// and hide it
if (!m_torn && m_parent && m_parent->isVisible()) {
Menu *p = m_parent;
while ((! p->m_torn) && p->m_parent && p->m_parent->isVisible())
p = p->m_parent;
p->internal_hide();
} else // if we dont have a parent then do hide here
internal_hide();
}
void Menu::grabInputFocus() {
s_focused = this;
// grab input focus
menu.window.setInputFocus(RevertToPointerRoot, CurrentTime);
}
void Menu::clearWindow() {
menu.title.clear();
menu.frame.clear();
// clear foreground bits of frame items
for (size_t i = 0; i < menuitems.size(); i++) {
clearItem(i, false); // no clear
}
}
void Menu::redrawFrame(FbDrawable &drawable) {
for (size_t i = 0; i < menuitems.size(); i++) {
drawItem(drawable, i);
}
}
void Menu::internal_hide() {
if (validIndex(m_which_sub)) {
MenuItem *tmp = menuitems[m_which_sub];
tmp->submenu()->internal_hide();
}
// if we have an active index we need to redraw it
// as non active
int old = m_active_index;
m_active_index = -1;
clearItem(old); // clear old area from highlight
if (shown && shown->menu.window == menu.window)
shown = (Menu *) 0;
m_torn = m_visible = false;
m_which_sub = m_which_press = m_which_sub = -1;
menu.window.hide();
}
void Menu::move(int x, int y) {
if (x == this->x() && y == this->y())
return;
menu.window.move(x, y);
// potentially transparent children
menu.title.parentMoved();
menu.frame.parentMoved();
if (!isVisible())
return;
if (alpha() < 255)
clearWindow();
if (m_which_sub != -1)
drawSubmenu(m_which_sub);
}
void Menu::redrawTitle(FbDrawable &drawable) {
const FbTk::Font &font = theme().titleFont();
int dx = theme().bevelWidth();
size_t len = menu.label.size();
unsigned int l = font.textWidth(menu.label, len) + theme().bevelWidth()*2;
switch (theme().titleFontJustify()) {
case FbTk::RIGHT:
dx += width() - l;
break;
case FbTk::CENTER:
dx += (width() - l) / 2;
break;
default:
break;
}
// difference between height based on font, and style-set height
int height_offset = theme().titleHeight() - (font.height() + 2*theme().bevelWidth());
font.drawText(drawable, // drawable
screenNumber(),
theme().titleTextGC().gc(), // graphic context
menu.label, len, // text string with length
dx, font.ascent() + theme().bevelWidth() + height_offset/2); // position
}
void Menu::drawSubmenu(unsigned int index) {
if (validIndex(m_which_sub) && static_cast<unsigned int>(m_which_sub) != index) {
MenuItem *itmp = menuitems[m_which_sub];
if (! itmp->submenu()->isTorn())
itmp->submenu()->internal_hide();
}
if (index >= menuitems.size())
return;
MenuItem *item = menuitems[index];
if (item->submenu() && isVisible() && (! item->submenu()->isTorn()) &&
item->isEnabled()) {
if (item->submenu()->m_parent != this)
item->submenu()->m_parent = this;
item->submenu()->setScreen(m_screen_x, m_screen_y, m_screen_width, m_screen_height);
int sbl = index / menu.persub, i = index - (sbl * menu.persub);
int new_x = x() + ((menu.item_w * (sbl + 1)) + menu.window.borderWidth());
int new_y;
if (m_alignment == ALIGNTOP) {
new_y = (((m_shifted) ? menu.y_shift : y()) +
((m_title_vis) ? theme().titleHeight() + menu.title.borderWidth() : 0) -
((item->submenu()->m_title_vis) ?
item->submenu()->theme().titleHeight() + menu.window.borderWidth() : 0));
} else {
new_y = (((m_shifted) ? menu.y_shift : y()) +
(theme().itemHeight() * i) +
((m_title_vis) ? theme().titleHeight() + menu.window.borderWidth() : 0) -
((item->submenu()->m_title_vis) ?
item->submenu()->theme().titleHeight() + menu.window.borderWidth() : 0));
}
if (m_alignment == ALIGNBOTTOM &&
(new_y + item->submenu()->height()) > ((m_shifted) ? menu.y_shift :
y()) + height()) {
new_y = (((m_shifted) ? menu.y_shift : y()) +
height() - item->submenu()->height());
}
int borderw = item->submenu()->fbwindow().borderWidth();
if ((new_x + item->submenu()->width()) + 2*borderw > m_screen_x + m_screen_width) {
new_x = ((m_shifted) ? menu.x_shift : x()) -
item->submenu()->width() - menu.window.borderWidth();
}
if (new_x < m_screen_x)
new_x = m_screen_x;
if ((new_y + item->submenu()->height()) > m_screen_y + m_screen_height) {
new_y = m_screen_y + m_screen_height - item->submenu()->height() -
menu.window.borderWidth() * 2;
}
item->submenu()->m_moving = m_moving;
m_which_sub = index;
if (new_y < m_screen_y)
new_y = m_screen_y;
item->submenu()->move(new_x, new_y);
if (! m_moving)
clearItem(index);
if (! item->submenu()->isVisible()) {
item->showSubmenu();
item->submenu()->raise();
}
} else
m_which_sub = -1;
}
#ifdef NOT_USED
bool Menu::hasSubmenu(unsigned int index) const {
if (index >= menuitems.size()) //boundary check
return false;
if (!menuitems[index]->submenu()) //has submenu?
return false;
return true;
}
#endif // NOT_USED
int Menu::drawItem(FbDrawable &drawable, unsigned int index,
bool highlight, bool exclusive_drawable) {
if (index >= menuitems.size() || menuitems.size() == 0 ||
menu.persub == 0)
return 0;
MenuItem *item = menuitems[index];
if (! item) return 0;
int sbl = index / menu.persub, i = index - (sbl * menu.persub);
int item_x = (sbl * menu.item_w), item_y = (i * theme().itemHeight());
if (exclusive_drawable)
item_x = item_y = 0;
item->draw(drawable, theme(), highlight,
exclusive_drawable, true, // draw fg, draw bg
item_x, item_y,
menu.item_w, theme().itemHeight());
return item_y;
}
void Menu::setLabel(const FbString &labelstr) {
//make sure we don't send 0 to std::string
menu.label = labelstr;
reconfigure();
}
void Menu::setItemSelected(unsigned int index, bool sel) {
if (index >= menuitems.size()) return;
MenuItem *item = find(index);
if (! item) return;
item->setSelected(sel);
}
bool Menu::isItemSelected(unsigned int index) const{
if (index >= menuitems.size()) return false;
const MenuItem *item = find(index);
if (!item)
return false;
return item->isSelected();
}
void Menu::setItemEnabled(unsigned int index, bool enable) {
if (index >= menuitems.size()) return;
MenuItem *item = find(index);
if (! item) return;
item->setEnabled(enable);
}
bool Menu::isItemEnabled(unsigned int index) const {
if (index >= menuitems.size()) return false;
const MenuItem *item = find(index);
if (!item)
return false;
return item->isEnabled();
}
bool Menu::isItemSelectable(unsigned int index) const {
if (index >= menuitems.size()) return false;
const MenuItem *item = find(index);
return (!item ||
(typeid(*item) == typeid(FbTk::MenuSeparator)) ||
!item->isEnabled()) ? false : true;
}
void Menu::handleEvent(XEvent &event) {
if (event.type == FocusOut) {
if (s_focused == this)
s_focused = 0;
} else if (event.type == FocusIn) {
if (s_focused != this)
s_focused = this;
}
}
void Menu::buttonPressEvent(XButtonEvent &be) {
if (be.window == menu.title)
grabInputFocus();
if (be.window == menu.frame && menu.item_w != 0) {
int sbl = (be.x / menu.item_w), i = (be.y / theme().itemHeight());
int w = (sbl * menu.persub) + i;
if (validIndex(w) && isItemSelectable(static_cast<unsigned int>(w))) {
m_which_press = i;
m_which_sbl = sbl;
MenuItem *item = menuitems[w];
if (item->submenu()) {
if (!item->submenu()->isVisible())
drawSubmenu(w);
}
}
} else {
menu.x_move = be.x_root - x();
menu.y_move = be.y_root - y();
}
}
void Menu::buttonReleaseEvent(XButtonEvent &re) {
if (re.window == menu.title) {
if (m_moving) {
m_moving = false;
if (m_which_sub != -1)
drawSubmenu(m_which_sub);
if (alpha() < 255) {
// update these since we've (probably) moved
menu.title.parentMoved();
menu.frame.parentMoved();
clearWindow();
}
}
if (re.button == 3)
hide();
} else if (re.window == menu.frame) {
int sbl = (re.x / menu.item_w), i = (re.y / theme().itemHeight()),
ix = sbl * menu.item_w, iy = i * theme().itemHeight(),
w = (sbl * menu.persub) + i,
p = (m_which_sbl * menu.persub) + m_which_press;
if (validIndex(w) && isItemSelectable(static_cast<unsigned int>(w))) {
if (p == w && isItemEnabled(w)) {
if (re.x > ix && re.x < (signed) (ix + menu.item_w) &&
re.y > iy && re.y < (signed) (iy + theme().itemHeight())) {
menuitems[w]->click(re.button, re.time);
itemSelected(re.button, w);
}
}
clearItem(p);
}
}
}
void Menu::motionNotifyEvent(XMotionEvent &me) {
// if draging the with the titlebar:
if (me.window == menu.title && (me.state & Button1Mask)) {
stopHide();
if (! m_moving) {
// if not m_moving: start m_moving operation
if (m_parent && (! m_torn)) {
m_parent->m_which_sub = -1;
m_parent->clearItem(m_parent->m_which_sub); // clear
}
m_moving = m_torn = true;
// clear current highlighted item
clearItem(m_active_index);
if (m_which_sub >= 0)
drawSubmenu(m_which_sub);
} else {
// we dont call ::move here 'cause we dont want to update transparency
// while draging the menu (which is slow)
menu.window.move(me.x_root - menu.x_move, me.y_root - menu.y_move);
}
} else if (!(me.state & Button1Mask) && me.window == menu.frame) {
stopHide();
int sbl = (me.x / menu.item_w),
i = (me.y / theme().itemHeight()),
w = (sbl * menu.persub) + i;
if (w == m_active_index)
return;
if (validIndex(m_active_index) && w != m_active_index) {
int old_active_index = m_active_index;
m_active_index = -1;
MenuItem *item = menuitems[old_active_index];
if (item != 0) {
clearItem(old_active_index);
if (item->submenu()) {
if (item->submenu()->isVisible() &&
!item->submenu()->isTorn()) {
// setup hide timer for submenu
item->submenu()->startHide();
m_which_sub = -1;
}
}
}
}
m_which_press = i;
m_which_sbl = sbl;
m_active_index = -1;
if (!validIndex(w))
return;
MenuItem *itmp = menuitems[w];
m_active_index = w;
if (itmp == 0)
return;
if (itmp->submenu()) {
// if submenu,
// draw item highlighted and
// start submenu open delay
clearItem(w);
if (theme().menuMode() == MenuTheme::DELAY_OPEN) {
// setup show menu timer
timeval timeout;
timeout.tv_sec = 0;
timeout.tv_usec = theme().delayOpen() * 1000; // transformed to usec
m_submenu_timer.setTimeout(timeout);
m_submenu_timer.start();
}
} else if (isItemSelectable(w)){
// else normal menu item
// draw highlighted
m_submenu_timer.stop();
if (itmp->isEnabled()) {
clearItem(w);
}
}
}
}
void Menu::exposeEvent(XExposeEvent &ee) {
if (ee.window == menu.title) {
menu.title.clearArea(ee.x, ee.y, ee.width, ee.height);
} else if (ee.window == menu.frame) {
// find where to clear
// this is a compilicated algorithm... lets do it step by step...
// first... we see in which sub level the expose starts... and how many
// items down in that sublevel
int sbl = (ee.x / menu.item_w), id = (ee.y / theme().itemHeight()),
// next... figure out how many sublevels over the redrawspans
sbl_d = ((ee.x + ee.width) / menu.item_w),
// then we see how many items down to redraw
id_d = ((ee.y + ee.height) / theme().itemHeight());
if (id_d > menu.persub) id_d = menu.persub;
// draw the sublevels and the number of items the exposure spans
int i, ii;
for (i = sbl; i <= sbl_d; i++) {
// set the iterator to the first item in the sublevel needing redrawing
int index = id + i * menu.persub;
if (index < static_cast<int>(menuitems.size()) && index >= 0) {
Menuitems::iterator it = menuitems.begin() + index;
Menuitems::iterator it_end = menuitems.end();
for (ii = id; ii <= id_d && it != it_end; ++it, ii++) {
int index = ii + (i * menu.persub);
// redraw the item
clearItem(index);
}
}
}
}
}
void Menu::enterNotifyEvent(XCrossingEvent &ce) {
if (menu.frame != ce.window)
return;
menu.x_shift = x(), menu.y_shift = y();
if (x() + width() > m_screen_x + m_screen_width) {
menu.x_shift = m_screen_x + m_screen_width - width() - 2*theme().borderWidth();
m_shifted = true;
} else if (x() < 0) {
menu.x_shift = 0; //-theme().borderWidth();
m_shifted = true;
}
if (y() + height() + 2*theme().borderWidth() > m_screen_y + m_screen_height) {
menu.y_shift = m_screen_y + m_screen_height - height() - 2*theme().borderWidth();
m_shifted = true;
} else if (y() + (signed) theme().titleHeight() < 0) {
menu.y_shift = 0; // -theme().borderWidth();;
m_shifted = true;
}
if (m_shifted) {
menu.window.move(menu.x_shift, menu.y_shift);
menu.title.parentMoved();
menu.frame.parentMoved();
clearWindow();
}
if (validIndex(m_which_sub)) {
MenuItem *tmp = menuitems[m_which_sub];
if (tmp->submenu()->isVisible()) {
int sbl = (ce.x / menu.item_w), i = (ce.y / theme().itemHeight()),
w = (sbl * menu.persub) + i;
if (w != m_which_sub && (! tmp->submenu()->isTorn())) {
tmp->submenu()->internal_hide();
clearItem(m_which_sub); // not highlighted anymore
m_which_sub = -1;
}
}
}
}
void Menu::leaveNotifyEvent(XCrossingEvent &ce) {
if (menu.frame != ce.window)
return;
}
void Menu::keyPressEvent(XKeyEvent &event) {
KeySym ks;
char keychar[1];
XLookupString(&event, keychar, 1, &ks, 0);
// a modifier key by itself doesn't do anything
if (IsModifierKey(ks))
return;
switch (ks) {
case XK_Up:
prevItem();
break;
case XK_Down:
nextItem();
break;
case XK_Left: // enter parent if we have one
enterParent();
break;
case XK_Right: // enter submenu if we have one
enterSubmenu();
break;
case XK_Escape: // close menu
hide();
break;
case XK_Return:
// send fake button 1 click
if (validIndex(m_which_press) &&
isItemEnabled(m_which_press)) {
if (event.state & ShiftMask)
menuitems[m_which_press]->click(3, event.time);
else
menuitems[m_which_press]->click(1, event.time);
itemSelected(1, m_which_press);
m_need_update = true;
updateMenu();
}
break;
default:
break;
}
}
void Menu::reconfigure() {
if (FbTk::Transparent::haveComposite())
menu.window.setOpaque(alpha());
m_need_update = true; // redraw items
menu.title.setAlpha(alpha());
menu.frame.setAlpha(alpha());
menu.window.setBorderColor(theme().borderColor());
menu.title.setBorderColor(theme().borderColor());
menu.frame.setBorderColor(theme().borderColor());
menu.window.setBorderWidth(theme().borderWidth());
menu.title.setBorderWidth(theme().borderWidth());
updateMenu();
}
void Menu::openSubmenu() {
if (!isVisible() || ! validIndex(m_which_press) ||
! validIndex(m_which_sbl))
return;
int item = m_which_sbl * menu.persub + m_which_press;
if (!validIndex(item) || !menuitems[item]->isEnabled())
return;
clearItem(item);
if (menuitems[item]->submenu() != 0) {
// stop hide timer, so it doesnt hides the menu if we
// have the same submenu as the last shown submenu
// (window menu for clients inside workspacemenu for example)
menuitems[item]->submenu()->m_hide_timer.stop();
drawSubmenu(item);
}
}
void Menu::closeMenu() {
if (isVisible() && !isTorn())
internal_hide();
}
void Menu::startHide() {
timeval timeout;
timeout.tv_sec = 0;
timeout.tv_usec = theme().delayClose() * 1000; // transformed to usec
m_hide_timer.setTimeout(timeout);
m_hide_timer.start();
}
void Menu::stopHide() {
m_hide_timer.stop();
}
void Menu::update(FbTk::Subject *subj) {
m_need_update = true;
Menuitems::iterator it = menuitems.begin();
Menuitems::iterator it_end = menuitems.end();
for (; it != it_end; ++it) {
(*it)->updateTheme(theme());
}
reconfigure();
}
void Menu::setScreen(int x, int y, int w, int h) {
m_screen_x = x;
m_screen_y = y;
m_screen_width = w;
m_screen_height = h;
}
// Render the foreground objects of given window onto given pixmap
void Menu::renderForeground(FbWindow &win, FbDrawable &drawable) {
if (&win == &menu.frame) {
redrawFrame(drawable);
} else if (&win == &menu.title) {
redrawTitle(drawable);
}
}
// clear item clears the item and draws the dynamic bits
// thus sometimes it won't perform the actual clear operation
// nothing in here should be rendered transparently
// (unless you use a caching pixmap, which I think we should avoid)
void Menu::clearItem(int index, bool clear) {
if (!validIndex(index))
return;
int sbl = index / menu.persub, i = index - (sbl * menu.persub);
unsigned int item_w = menu.item_w, item_h = theme().itemHeight();
int item_x = (sbl * item_w), item_y = (i * item_h);
bool highlight = (index == m_active_index);
// don't highlight if moving, doesn't work with alpha on
if (highlight && !m_moving) {
highlightItem(index);
return;
} else if (clear)
menu.frame.clearArea(item_x, item_y, item_w, item_h);
MenuItem *item = menuitems[index];
if (! item) return;
item->draw(menu.frame, theme(), highlight,
true, false, item_x, item_y,
item_w, item_h);
}
// Area must have been cleared before calling highlight
void Menu::highlightItem(int index) {
int sbl = index / menu.persub, i = index - (sbl * menu.persub);
unsigned int item_w = menu.item_w, item_h = theme().itemHeight();
int item_x = (sbl * menu.item_w), item_y = (i * item_h);
FbPixmap buffer = FbPixmap(menu.frame, item_w, item_h, menu.frame.depth());
if (menu.hilite_pixmap != ParentRelative) {
if (menu.hilite_pixmap) {
buffer.copyArea(menu.hilite_pixmap,
theme().hiliteGC().gc(), 0, 0,
0, 0,
item_w, item_h);
} else {
buffer.fillRectangle(theme().hiliteGC().gc(),
0, 0, item_w, item_h);
}
menu.frame.updateTransparent(item_x, item_y, item_w, item_h, buffer.drawable(), true);
}
drawItem(buffer, index, true, true);
menu.frame.copyArea(buffer.drawable(), theme().hiliteGC().gc(),
0, 0,
item_x, item_y,
item_w, item_h);
}
}; // end namespace FbTk