492 lines
12 KiB
C++
492 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 <algorithm>
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#include <iostream>
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namespace otk {
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OtkWidget::OtkWidget(OtkWidget *parent, Direction direction)
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: OtkEventHandler(),
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_dirty(false), _focused(false),
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_parent(parent), _style(parent->getStyle()), _direction(direction),
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_cursor(parent->getCursor()), _bevel_width(parent->getBevelWidth()),
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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), _screen(parent->getScreen()), _fixed_width(false),
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_fixed_height(false), _event_dispatcher(parent->getEventDispatcher())
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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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setStyle(_style); // let the widget initialize stuff
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}
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OtkWidget::OtkWidget(OtkEventDispatcher *event_dispatcher, Style *style,
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Direction direction, Cursor cursor, int bevel_width)
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: OtkEventHandler(),
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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),
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_screen(style->getScreen()), _fixed_width(false), _fixed_height(false),
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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();
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_event_dispatcher->registerHandler(_window, this);
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setStyle(_style); // let the widget initialize stuff
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}
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OtkWidget::~OtkWidget()
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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(otk::OBDisplay::display, _window);
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}
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void OtkWidget::create(void)
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{
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const ScreenInfo *scr_info = otk::OBDisplay::screenInfo(_screen);
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Window p_window = _parent ? _parent->getWindow() : scr_info->getRootWindow();
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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->getColormap();
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attrib_create.event_mask = ButtonPressMask | ButtonReleaseMask |
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ButtonMotionMask | ExposureMask | StructureNotifyMask;
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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(otk::OBDisplay::display, p_window, _rect.x(),
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_rect.y(), _rect.width(), _rect.height(), 0,
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scr_info->getDepth(), InputOutput,
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scr_info->getVisual(), create_mask, &attrib_create);
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_ignore_config++;
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}
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void OtkWidget::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 OtkWidget::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 OtkWidget::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 OtkWidget::move(int x, int y)
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{
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_rect.setPos(x, y);
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XMoveWindow(otk::OBDisplay::display, _window, x, y);
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_ignore_config++;
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}
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void OtkWidget::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 OtkWidget::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 OtkWidget::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 OtkWidget::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 OtkWidget::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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XMoveResizeWindow(otk::OBDisplay::display, _window, x, y, width, height);
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_ignore_config++;
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}
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void OtkWidget::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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OtkWidgetList::iterator it = _children.begin(), end = _children.end();
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for (; it != end; ++it)
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(*it)->show();
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}
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XMapWindow(otk::OBDisplay::display, _window);
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_visible = true;
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}
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void OtkWidget::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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OtkWidgetList::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(otk::OBDisplay::display, _window);
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_visible = false;
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}
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void OtkWidget::focus(void)
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{
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/* if (! _visible)
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return;
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XSetInputFocus(otk::OBDisplay::display, _window, RevertToPointerRoot,
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CurrentTime);*/
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_focused = true;
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OtkWidget::OtkWidgetList::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 OtkWidget::unfocus(void)
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{
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_focused = false;
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OtkWidget::OtkWidgetList::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 OtkWidget::grabMouse(void)
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{
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Status ret = XGrabPointer(otk::OBDisplay::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 OtkWidget::ungrabMouse(void)
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{
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if (! _grabbed_mouse)
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return;
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XUngrabPointer(otk::OBDisplay::display, CurrentTime);
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_grabbed_mouse = false;
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}
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bool OtkWidget::grabKeyboard(void)
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{
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Status ret = XGrabKeyboard(otk::OBDisplay::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 OtkWidget::ungrabKeyboard(void)
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{
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if (! _grabbed_keyboard)
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return;
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XUngrabKeyboard(otk::OBDisplay::display, CurrentTime);
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_grabbed_keyboard = false;
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}
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void OtkWidget::render(void)
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{
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if (!_texture) return;
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_bg_pixmap = _texture->render(_rect.width(), _rect.height(), _bg_pixmap);
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if (_bg_pixmap)
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XSetWindowBackgroundPixmap(otk::OBDisplay::display, _window, _bg_pixmap);
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else {
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unsigned int pix = _texture->color().pixel();
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if (pix != _bg_pixel) {
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_bg_pixel = pix;
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XSetWindowBackground(otk::OBDisplay::display, _window, pix);
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}
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}
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}
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void OtkWidget::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 OtkWidget::adjustHorz(void)
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{
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if (_children.size() == 0)
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return;
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OtkWidget *tmp;
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OtkWidgetList::iterator it, end = _children.end();
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int tallest = 0;
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int width = _bevel_width;
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OtkWidgetList 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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OtkWidgetList::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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OtkWidget *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 = _rect.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 OtkWidget::adjustVert(void)
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{
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if (_children.size() == 0)
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return;
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OtkWidget *tmp;
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OtkWidgetList::iterator it, end = _children.end();
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int widest = 0;
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int height = _bevel_width;
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OtkWidgetList 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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OtkWidgetList::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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OtkWidget *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 = _rect.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 OtkWidget::update(void)
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{
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if (_dirty) {
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if (! _unmanaged)
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adjust();
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render();
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XClearWindow(OBDisplay::display, _window);
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}
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OtkWidgetList::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 OtkWidget::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 OtkWidget::addChild(OtkWidget *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 OtkWidget::removeChild(OtkWidget *child)
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{
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assert(child);
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OtkWidgetList::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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#include <stdio.h>
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void OtkWidget::setStyle(Style *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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// reset textures/colors
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if (_focused) {
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unfocus();
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focus();
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} else {
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focus();
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unfocus();
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}
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OtkWidgetList::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 OtkWidget::setEventDispatcher(OtkEventDispatcher *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 OtkWidget::exposeHandler(const XExposeEvent &e)
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{
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OtkEventHandler::exposeHandler(e);
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_dirty = true;
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update();
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}
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void OtkWidget::configureHandler(const XConfigureEvent &e)
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{
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OtkEventHandler::configureHandler(e);
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if (_ignore_config) {
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_ignore_config--;
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} else {
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if (!(e.width == _rect.width() && e.height == _rect.height())) {
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_dirty = true;
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_rect.setSize(e.width, e.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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