494 lines
12 KiB
C++
494 lines
12 KiB
C++
// -*- mode: C++; indent-tabs-mode: nil; c-basic-offset: 2; -*-
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#ifdef HAVE_CONFIG_H
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# include "../config.h"
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#endif // HAVE_CONFIG_H
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#include "widget.hh"
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#include "display.hh"
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#include "assassin.hh"
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#include "screeninfo.hh"
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#include "focuslabel.hh"
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#include <algorithm>
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#include <iostream>
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namespace otk {
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Widget::Widget(Widget *parent, Direction direction)
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: EventHandler(),
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_dirty(false), _focused(false),
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_parent(parent), _style(parent->style()), _direction(direction),
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_cursor(parent->cursor()), _bevel_width(parent->bevelWidth()),
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_ignore_config(0),
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_visible(false), _grabbed_mouse(false),
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_grabbed_keyboard(false), _stretchable_vert(false),
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_stretchable_horz(false), _texture(0), _bg_pixmap(0), _bg_pixel(0),
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_bcolor(0), _bwidth(0), _rect(0, 0, 1, 1), _screen(parent->screen()),
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_fixed_width(false), _fixed_height(false),
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_surface(0),
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_event_dispatcher(parent->eventDispatcher())
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{
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assert(parent);
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parent->addChild(this);
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create();
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_event_dispatcher->registerHandler(_window, this);
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}
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Widget::Widget(EventDispatcher *event_dispatcher, RenderStyle *style,
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Direction direction, Cursor cursor, int bevel_width,
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bool override_redirect)
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: EventHandler(),
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_dirty(false),_focused(false),
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_parent(0), _style(style), _direction(direction), _cursor(cursor),
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_bevel_width(bevel_width), _ignore_config(0), _visible(false),
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_grabbed_mouse(false), _grabbed_keyboard(false),
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_stretchable_vert(false), _stretchable_horz(false), _texture(0),
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_bg_pixmap(0), _bg_pixel(0), _bcolor(0), _bwidth(0), _rect(0, 0, 1, 1),
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_screen(style->screen()), _fixed_width(false), _fixed_height(false),
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_surface(0),
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_event_dispatcher(event_dispatcher)
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{
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assert(event_dispatcher);
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assert(style);
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create(override_redirect);
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_event_dispatcher->registerHandler(_window, this);
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}
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Widget::~Widget()
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{
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if (_visible)
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hide();
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_event_dispatcher->clearHandler(_window);
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std::for_each(_children.begin(), _children.end(), PointerAssassin());
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if (_parent)
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_parent->removeChild(this);
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XDestroyWindow(**display, _window);
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}
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void Widget::create(bool override_redirect)
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{
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const ScreenInfo *scr_info = display->screenInfo(_screen);
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Window p_window = _parent ? _parent->window() : scr_info->rootWindow();
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_rect.setRect(0, 0, 1, 1); // just some initial values
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XSetWindowAttributes attrib_create;
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unsigned long create_mask = CWBackPixmap | CWBorderPixel | CWEventMask;
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attrib_create.background_pixmap = None;
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attrib_create.colormap = scr_info->colormap();
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attrib_create.event_mask = ButtonPressMask | ButtonReleaseMask |
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ButtonMotionMask | ExposureMask | StructureNotifyMask;
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if (override_redirect) {
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create_mask |= CWOverrideRedirect;
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attrib_create.override_redirect = true;
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}
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if (_cursor) {
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create_mask |= CWCursor;
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attrib_create.cursor = _cursor;
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}
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_window = XCreateWindow(**display, p_window, _rect.x(),
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_rect.y(), _rect.width(), _rect.height(), 0,
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scr_info->depth(), InputOutput,
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scr_info->visual(), create_mask, &attrib_create);
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_ignore_config++;
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}
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void Widget::setWidth(int w)
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{
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assert(w > 0);
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_fixed_width = true;
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setGeometry(_rect.x(), _rect.y(), w, _rect.height());
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}
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void Widget::setHeight(int h)
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{
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assert(h > 0);
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_fixed_height = true;
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setGeometry(_rect.x(), _rect.y(), _rect.width(), h);
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}
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void Widget::move(const Point &to)
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{
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move(to.x(), to.y());
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}
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void Widget::move(int x, int y)
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{
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_rect.setPos(x, y);
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XMoveWindow(**display, _window, x, y);
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_ignore_config++;
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}
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void Widget::resize(const Point &to)
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{
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resize(to.x(), to.y());
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}
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void Widget::resize(int w, int h)
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{
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assert(w > 0 && h > 0);
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_fixed_width = _fixed_height = true;
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setGeometry(_rect.x(), _rect.y(), w, h);
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}
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void Widget::setGeometry(const Rect &new_geom)
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{
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setGeometry(new_geom.x(), new_geom.y(), new_geom.width(), new_geom.height());
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}
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void Widget::setGeometry(const Point &topleft, int width, int height)
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{
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setGeometry(topleft.x(), topleft.y(), width, height);
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}
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void Widget::setGeometry(int x, int y, int width, int height)
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{
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_rect = Rect(x, y, width, height);
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_dirty = true;
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// don't use an XMoveResizeWindow here, because it doesn't seem to move
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// windows with StaticGravity? This works, that didn't.
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XResizeWindow(**display, _window, width, height);
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XMoveWindow(**display, _window, x, y);
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_ignore_config+=2;
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}
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void Widget::show(bool recursive)
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{
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if (_visible)
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return;
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// make sure the internal state isn't mangled
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if (_dirty)
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update();
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if (recursive) {
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WidgetList::iterator it = _children.begin(), end = _children.end();
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for (; it != end; ++it)
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(*it)->show(recursive);
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}
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XMapWindow(**display, _window);
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_visible = true;
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}
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void Widget::hide(bool recursive)
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{
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if (! _visible)
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return;
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if (recursive) {
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WidgetList::iterator it = _children.begin(), end = _children.end();
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for (; it != end; ++it)
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(*it)->hide();
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}
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XUnmapWindow(**display, _window);
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_visible = false;
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}
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void Widget::focus(void)
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{
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_focused = true;
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Widget::WidgetList::iterator it = _children.begin(),
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end = _children.end();
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for (; it != end; ++it)
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(*it)->focus();
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}
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void Widget::unfocus(void)
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{
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_focused = false;
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Widget::WidgetList::iterator it = _children.begin(),
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end = _children.end();
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for (; it != end; ++it)
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(*it)->unfocus();
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}
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bool Widget::grabMouse(void)
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{
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Status ret = XGrabPointer(**display, _window, True,
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(ButtonPressMask | ButtonReleaseMask |
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ButtonMotionMask | EnterWindowMask |
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LeaveWindowMask | PointerMotionMask),
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GrabModeSync, GrabModeAsync, None, None,
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CurrentTime);
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_grabbed_mouse = (ret == GrabSuccess);
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return _grabbed_mouse;
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}
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void Widget::ungrabMouse(void)
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{
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if (! _grabbed_mouse)
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return;
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XUngrabPointer(**display, CurrentTime);
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_grabbed_mouse = false;
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}
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bool Widget::grabKeyboard(void)
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{
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Status ret = XGrabKeyboard(**display, _window, True,
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GrabModeSync, GrabModeAsync, CurrentTime);
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_grabbed_keyboard = (ret == GrabSuccess);
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return _grabbed_keyboard;
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}
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void Widget::ungrabKeyboard(void)
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{
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if (! _grabbed_keyboard)
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return;
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XUngrabKeyboard(**display, CurrentTime);
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_grabbed_keyboard = false;
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}
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void Widget::render(void)
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{
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if (!_texture) return;
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Surface *s = _surface; // save the current surface
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_surface = new Surface(_screen, _rect.size());
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display->renderControl(_screen)->drawBackground(*_surface, *_texture);
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renderForeground(); // for inherited types to render onto the _surface
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XSetWindowBackgroundPixmap(**display, _window, _surface->pixmap());
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delete s; // delete the old surface *after* its pixmap isn't in use anymore
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}
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void Widget::adjust(void)
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{
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if (_direction == Horizontal)
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adjustHorz();
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else
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adjustVert();
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}
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void Widget::adjustHorz(void)
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{
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if (_children.size() == 0)
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return;
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Widget *tmp;
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WidgetList::iterator it, end = _children.end();
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int tallest = 0;
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int width = _bevel_width;
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WidgetList stretchable;
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for (it = _children.begin(); it != end; ++it) {
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tmp = *it;
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if (tmp->isStretchableVert())
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tmp->setHeight(_rect.height() > _bevel_width * 2 ?
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_rect.height() - _bevel_width * 2 : _bevel_width);
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if (tmp->isStretchableHorz())
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stretchable.push_back(tmp);
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else
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width += tmp->_rect.width() + _bevel_width;
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if (tmp->_rect.height() > tallest)
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tallest = tmp->_rect.height();
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}
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if (stretchable.size() > 0) {
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WidgetList::iterator str_it = stretchable.begin(),
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str_end = stretchable.end();
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int str_width = _rect.width() - width / stretchable.size();
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for (; str_it != str_end; ++str_it)
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(*str_it)->setWidth(str_width > _bevel_width ? str_width - _bevel_width
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: _bevel_width);
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}
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Widget *prev_widget = 0;
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for (it = _children.begin(); it != end; ++it) {
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tmp = *it;
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int x, y;
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if (prev_widget)
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x = prev_widget->_rect.x() + prev_widget->_rect.width() + _bevel_width;
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else
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x = _bevel_width;
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y = (tallest - tmp->_rect.height()) / 2 + _bevel_width;
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tmp->move(x, y);
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prev_widget = tmp;
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}
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internalResize(width, tallest + _bevel_width * 2);
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}
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void Widget::adjustVert(void)
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{
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if (_children.size() == 0)
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return;
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Widget *tmp;
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WidgetList::iterator it, end = _children.end();
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int widest = 0;
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int height = _bevel_width;
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WidgetList stretchable;
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for (it = _children.begin(); it != end; ++it) {
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tmp = *it;
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if (tmp->isStretchableHorz())
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tmp->setWidth(_rect.width() > _bevel_width * 2 ?
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_rect.width() - _bevel_width * 2 : _bevel_width);
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if (tmp->isStretchableVert())
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stretchable.push_back(tmp);
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else
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height += tmp->_rect.height() + _bevel_width;
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if (tmp->_rect.width() > widest)
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widest = tmp->_rect.width();
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}
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if (stretchable.size() > 0) {
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WidgetList::iterator str_it = stretchable.begin(),
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str_end = stretchable.end();
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int str_height = _rect.height() - height / stretchable.size();
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for (; str_it != str_end; ++str_it)
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(*str_it)->setHeight(str_height > _bevel_width ?
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str_height - _bevel_width : _bevel_width);
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}
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Widget *prev_widget = 0;
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for (it = _children.begin(); it != end; ++it) {
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tmp = *it;
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int x, y;
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if (prev_widget)
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y = prev_widget->_rect.y() + prev_widget->_rect.height() + _bevel_width;
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else
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y = _bevel_width;
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x = (widest - tmp->_rect.width()) / 2 + _bevel_width;
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tmp->move(x, y);
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prev_widget = tmp;
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}
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internalResize(widest + _bevel_width * 2, height);
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}
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void Widget::update(void)
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{
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if (_dirty) {
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adjust();
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render();
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XClearWindow(**display, _window);
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}
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WidgetList::iterator it = _children.begin(), end = _children.end();
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for (; it != end; ++it)
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(*it)->update();
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_dirty = false;
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}
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void Widget::internalResize(int w, int h)
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{
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assert(w > 0 && h > 0);
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if (! _fixed_width && ! _fixed_height)
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resize(w, h);
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else if (! _fixed_width)
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resize(w, _rect.height());
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else if (! _fixed_height)
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resize(_rect.width(), h);
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}
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void Widget::addChild(Widget *child, bool front)
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{
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assert(child);
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if (front)
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_children.push_front(child);
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else
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_children.push_back(child);
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}
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void Widget::removeChild(Widget *child)
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{
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assert(child);
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WidgetList::iterator it, end = _children.end();
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for (it = _children.begin(); it != end; ++it) {
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if ((*it) == child)
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break;
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}
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if (it != _children.end())
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_children.erase(it);
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}
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void Widget::setStyle(RenderStyle *style)
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{
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assert(style);
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_style = style;
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_dirty = true;
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WidgetList::iterator it, end = _children.end();
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for (it = _children.begin(); it != end; ++it)
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(*it)->setStyle(style);
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}
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void Widget::setEventDispatcher(EventDispatcher *disp)
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{
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if (_event_dispatcher)
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_event_dispatcher->clearHandler(_window);
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_event_dispatcher = disp;
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_event_dispatcher->registerHandler(_window, this);
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}
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void Widget::exposeHandler(const XExposeEvent &e)
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{
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EventHandler::exposeHandler(e);
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// XClearArea(**display, _window, e.x, e.y, e.width, e.height, false);
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}
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void Widget::configureHandler(const XConfigureEvent &e)
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{
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EventHandler::configureHandler(e);
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if (_ignore_config) {
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_ignore_config--;
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} else {
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int width = e.width;
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int height = e.height;
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XEvent ev;
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while (XCheckTypedWindowEvent(**display, _window, ConfigureNotify, &ev)) {
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width = ev.xconfigure.width;
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height = ev.xconfigure.height;
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}
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if (!(width == _rect.width() && height == _rect.height())) {
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_dirty = true;
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_rect.setSize(width, height);
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}
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update();
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}
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}
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}
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