// -*- mode: C++; indent-tabs-mode: nil; c-basic-offset: 2; -*-
-#ifdef HAVE_CONFIG_H
-# include "../config.h"
-#endif // HAVE_CONFIG_H
-
+#include "config.h"
#include "widget.hh"
-
+#include "display.hh"
+#include "surface.hh"
+#include "rendertexture.hh"
+#include "rendercolor.hh"
+#include "eventdispatcher.hh"
+#include "screeninfo.hh"
+
+#include <climits>
+#include <cassert>
#include <algorithm>
namespace otk {
-OtkWidget::OtkWidget(OtkWidget *parent, Direction direction)
- : OtkBaseWidget(parent),
- _direction(direction), _stretchable_vert(false), _stretchable_horz(false),
- _event_dispatcher(parent->getEventDispatcher())
+Widget::Widget(int screen, EventDispatcher *ed, Direction direction, int bevel,
+ bool overrideredir)
+ : _texture(0),
+ _screen(screen),
+ _parent(0),
+ _window(0),
+ _surface(0),
+ _event_mask(ButtonPressMask | ButtonReleaseMask | ButtonMotionMask |
+ ExposureMask | StructureNotifyMask),
+ _alignment(RenderStyle::CenterJustify),
+ _direction(direction),
+ _max_size(INT_MAX, INT_MAX),
+ _visible(false),
+ _bordercolor(0),
+ _borderwidth(0),
+ _bevel(bevel),
+ _dirty(true),
+ _dispatcher(ed),
+ _ignore_config(0)
+{
+ createWindow(overrideredir);
+ _dispatcher->registerHandler(_window, this);
+}
+
+Widget::Widget(Widget *parent, Direction direction, int bevel)
+ : _texture(0),
+ _screen(parent->_screen),
+ _parent(parent),
+ _window(0),
+ _surface(0),
+ _event_mask(ButtonPressMask | ButtonReleaseMask | ButtonMotionMask |
+ ExposureMask | StructureNotifyMask),
+ _alignment(RenderStyle::CenterJustify),
+ _direction(direction),
+ _max_size(INT_MAX, INT_MAX),
+ _visible(false),
+ _bordercolor(0),
+ _borderwidth(0),
+ _bevel(bevel),
+ _dirty(true),
+ _dispatcher(parent->_dispatcher),
+ _ignore_config(0)
{
assert(parent);
- _event_dispatcher->registerHandler(getWindow(), this);
+ createWindow(false);
+ parent->addChild(this);
+ if (parent->visible()) parent->layout();
+ _dispatcher->registerHandler(_window, this);
+ styleChanged(*RenderStyle::style(_screen));
}
-OtkWidget::OtkWidget(OtkEventDispatcher *event_dispatcher, Style *style,
- Direction direction, Cursor cursor, int bevel_width)
- : OtkBaseWidget(style, cursor, bevel_width),
- _direction(direction), _stretchable_vert(false), _stretchable_horz(false),
- _event_dispatcher(event_dispatcher)
+Widget::~Widget()
{
- assert(event_dispatcher);
- _event_dispatcher->registerHandler(getWindow(), this);
+ assert(_children.empty()); // this would be bad. theyd have a hanging _parent
+
+ if (_surface) delete _surface;
+ if (_parent) _parent->removeChild(this);
+
+ _dispatcher->clearHandler(_window);
+ XDestroyWindow(**display, _window);
}
-OtkWidget::~OtkWidget()
+void Widget::show(bool children)
{
- _event_dispatcher->clearHandler(_window);
+ if (children) {
+ std::list<Widget*>::iterator it , end = _children.end();
+ for (it = _children.begin(); it != end; ++it) {
+ (*it)->show(true);
+ }
+ }
+ if (!_visible) {
+ if (_parent) _parent->calcDefaultSizes();
+ else resize(_area.size()); // constrain sizes
+ _visible = true;
+ XMapWindow(**display, _window);
+ update();
+ }
}
-void OtkWidget::adjust(void)
+void Widget::hide()
{
- if (_direction == Horizontal)
- adjustHorz();
- else
- adjustVert();
+ if (_visible) {
+ _visible = false;
+ XUnmapWindow(**display, _window);
+ if (_parent) {
+ _parent->calcDefaultSizes();
+ _parent->layout();
+ }
+ }
+}
+
+void Widget::setEventMask(long e)
+{
+ XSelectInput(**display, _window, e);
+ _event_mask = e;
}
-void OtkWidget::adjustHorz(void)
+void Widget::update()
{
- if (_children.size() == 0)
- return;
+ if (!_visible) return;
+ _dirty = true;
+ if (_parent) {
+ _parent->calcDefaultSizes();
+ _parent->layout(); // relay-out us and our siblings
+ } else {
+ render();
+ layout();
+ }
+}
- OtkWidget *tmp;
- OtkBaseWidgetList::iterator it, end = _children.end();
+void Widget::moveresize(const Rect &r)
+{
+ int w, h;
+ w = std::max(std::min(r.width(), maxSize().width()), minSize().width());
+ h = std::max(std::min(r.height(), maxSize().height()), minSize().height());
- int tallest = 0;
- int width = _bevel_width;
- OtkBaseWidgetList stretchable;
+ bool sizechange = !(w == area().width() && h == area().height());
- for (it = _children.begin(); it != end; ++it) {
- if (!(tmp = dynamic_cast<OtkWidget*>(*it))) continue;
- if (tmp->isStretchableVert())
- tmp->setHeight(_rect.height() > _bevel_width * 2 ?
- _rect.height() - _bevel_width * 2 : _bevel_width);
- if (tmp->isStretchableHorz())
- stretchable.push_back(tmp);
- else
- width += tmp->_rect.width() + _bevel_width;
+ if (r.x() == area().x() && r.y() == area().y() && !sizechange)
+ return; // no change, don't cause a big layout chain to occur!
+
+ internal_moveresize(r.x(), r.y(), w, h);
- if (tmp->_rect.height() > tallest)
- tallest = tmp->_rect.height();
- }
+ if (sizechange)
+ update();
+}
- if (stretchable.size() > 0) {
- OtkBaseWidgetList::iterator str_it = stretchable.begin(),
- str_end = stretchable.end();
+void Widget::internal_moveresize(int x, int y, int w, int h)
+{
+ assert(w > 0);
+ assert(h > 0);
+ assert(_borderwidth >= 0);
+ _dirty = true;
+ if (!(x == _area.x() && y == _area.y())) {
+ if (!(w == _area.width() && h == _area.height()))
+ XMoveResizeWindow(**display, _window, x, y,
+ w - _borderwidth * 2,
+ h - _borderwidth * 2);
+ else
+ XMoveWindow(**display, _window, x, y);
+ } else
+ XResizeWindow(**display, _window, w - _borderwidth*2, h - _borderwidth*2);
+ _ignore_config++;
- int str_width = _rect.width() - width / stretchable.size();
+ _area = Rect(x, y, w, h);
+}
- for (; str_it != str_end; ++str_it)
- (*str_it)->setWidth(str_width > _bevel_width ? str_width - _bevel_width
- : _bevel_width);
+void Widget::setAlignment(RenderStyle::Justify a)
+{
+ _alignment = a;
+ layout();
+}
+
+void Widget::createWindow(bool overrideredir)
+{
+ const ScreenInfo *info = display->screenInfo(_screen);
+ XSetWindowAttributes attrib;
+ unsigned long mask = CWEventMask | CWBorderPixel;
+
+ attrib.event_mask = _event_mask;
+ attrib.border_pixel = (_bordercolor ?
+ _bordercolor->pixel():
+ BlackPixel(**display, _screen));
+
+ if (overrideredir) {
+ mask |= CWOverrideRedirect;
+ attrib.override_redirect = true;
}
+
+ _window = XCreateWindow(**display, (_parent ?
+ _parent->_window :
+ RootWindow(**display, _screen)),
+ _area.x(), _area.y(),
+ _area.width(), _area.height(),
+ _borderwidth,
+ info->depth(),
+ InputOutput,
+ info->visual(),
+ mask,
+ &attrib);
+ assert(_window != None);
+ ++_ignore_config;
+}
- OtkWidget *prev_widget = 0;
+void Widget::calcDefaultSizes()
+{
+ std::list<Widget*>::const_iterator it, end = _children.end();
+ int min_biggest = 0, max_biggest = 0;
+ int min_sum = _bevel + _borderwidth * 2;
+ int max_sum = _bevel + _borderwidth * 2;
+ bool fullmax = false;
for (it = _children.begin(); it != end; ++it) {
- if (!(tmp = dynamic_cast<OtkWidget*>(*it))) continue;
- int x, y;
-
- if (prev_widget)
- x = prev_widget->_rect.x() + prev_widget->_rect.width() + _bevel_width;
- else
- x = _rect.x() + _bevel_width;
- y = (tallest - tmp->_rect.height()) / 2 + _bevel_width;
-
- tmp->move(x, y);
-
- prev_widget = tmp;
+ const otk::Size &min = (*it)->minSize();
+ const otk::Size &max = (*it)->maxSize();
+ if (_direction == Horizontal) {
+ if (min.height() > min_biggest) min_biggest = min.height();
+ if (max.height() > max_biggest) max_biggest = max.height();
+ min_sum += _bevel + min.width();
+ if (max.width() == INT_MAX)
+ fullmax = true;
+ else if (!fullmax)
+ max_sum += _bevel + max.width();
+ } else {
+ if (min.width() > min_biggest) min_biggest = min.width();
+ if (max.width() > max_biggest) max_biggest = max.width();
+ min_sum += _bevel + min.height();
+ if (max.height() == INT_MAX)
+ fullmax = true;
+ else if (!fullmax)
+ max_sum += _bevel + max.height();
+ }
+ }
+ if (_direction == Horizontal) {
+ _min_size = otk::Size(min_sum + (_bevel + _borderwidth) * 2,
+ min_biggest + (_bevel + _borderwidth) * 2);
+ _max_size = otk::Size((fullmax ? INT_MAX :
+ max_sum + (_bevel + _borderwidth) * 2),
+ max_biggest);
+ } else {
+ _min_size = otk::Size(min_biggest + (_bevel + _borderwidth) * 2,
+ min_sum + (_bevel + _borderwidth) * 2);
+ _max_size = otk::Size(max_biggest, (fullmax ? INT_MAX : max_sum +
+ (_bevel + _borderwidth) * 2));
}
+ update();
+}
+
+void Widget::setBorderWidth(int w)
+{
+ assert(w >= 0);
+ if (!parent()) return; // top-level windows cannot have borders
+ if (w == borderWidth()) return; // no change
+
+ _borderwidth = w;
+ XSetWindowBorderWidth(**display, _window, _borderwidth);
+
+ calcDefaultSizes();
+ update();
+}
- internalResize(width, tallest + _bevel_width * 2);
+void Widget::setMinSize(const Size &s)
+{
+ _min_size = s;
+ update();
}
-void OtkWidget::adjustVert(void)
+void Widget::setMaxSize(const Size &s)
{
- if (_children.size() == 0)
- return;
+ _max_size = s;
+ update();
+}
- OtkWidget *tmp;
- OtkBaseWidgetList::iterator it, end = _children.end();
+void Widget::setBorderColor(const RenderColor *c)
+{
+ _bordercolor = c;
+ XSetWindowBorder(**otk::display, _window,
+ c ? c->pixel() : BlackPixel(**otk::display, _screen));
+}
- int widest = 0;
- int height = _bevel_width;
- OtkBaseWidgetList stretchable;
+void Widget::setBevel(int b)
+{
+ _bevel = b;
+ calcDefaultSizes();
+ layout();
+}
- for (it = _children.begin(); it != end; ++it) {
- if (!(tmp = dynamic_cast<OtkWidget*>(*it))) continue;
- if (tmp->isStretchableHorz())
- tmp->setWidth(_rect.width() > _bevel_width * 2 ?
- _rect.width() - _bevel_width * 2 : _bevel_width);
- if (tmp->isStretchableVert())
- stretchable.push_back(tmp);
- else
- height += tmp->_rect.height() + _bevel_width;
+void Widget::layout()
+{
+ if (_children.empty() || !_visible) return;
+ if (_direction == Horizontal)
+ layoutHorz();
+ else
+ layoutVert();
+}
- if (tmp->_rect.width() > widest)
- widest = tmp->_rect.width();
+void Widget::layoutHorz()
+{
+ std::list<Widget*>::iterator it, end;
+
+ // work with just the visible children
+ std::list<Widget*> visible;
+ for (it = _children.begin(), end = _children.end(); it != end; ++it)
+ if ((*it)->visible())
+ visible.push_back(*it);
+
+ if (visible.empty()) return;
+
+ int x, y, w, h; // working area
+ x = y = _bevel;
+ w = _area.width() - _borderwidth * 2 - _bevel * 2;
+ h = _area.height() - _borderwidth * 2 - _bevel * 2;
+ if (w < 0 || h < 0) return; // not worth laying anything out!
+
+ int free = w - (visible.size() - 1) * _bevel;
+ if (free < 0) free = 0;
+ int each;
+
+ std::list<Widget*> adjustable;
+
+ // find the 'free' space, and how many children will be using it
+ for (it = visible.begin(), end = visible.end(); it != end; ++it) {
+ free -= (*it)->minSize().width();
+ if (free < 0) free = 0;
+ if ((*it)->maxSize().width() - (*it)->minSize().width() > 0)
+ adjustable.push_back(*it);
+ }
+ // some widgets may have max widths that restrict them, find the 'true'
+ // amount of free space after these widgets are not included
+ if (!adjustable.empty()) {
+ do {
+ each = free / adjustable.size();
+ for (it = adjustable.begin(), end = adjustable.end(); it != end;) {
+ std::list<Widget*>::iterator next = it; ++next;
+ int m = (*it)->maxSize().width() - (*it)->minSize().width();
+ if (m > 0 && m < each) {
+ free -= m;
+ if (free < 0) free = 0;
+ adjustable.erase(it);
+ break; // if one is found to be fixed, then the free space needs to
+ // change, and the rest need to be reexamined
+ }
+ it = next;
+ }
+ } while (it != end && !adjustable.empty());
}
- if (stretchable.size() > 0) {
- OtkBaseWidgetList::iterator str_it = stretchable.begin(),
- str_end = stretchable.end();
+ // place/size the widgets
+ if (!adjustable.empty())
+ each = free / adjustable.size();
+ else
+ each = 0;
+ for (it = visible.begin(), end = visible.end(); it != end; ++it) {
+ int w;
+ // is the widget adjustable?
+ std::list<Widget*>::const_iterator
+ found = std::find(adjustable.begin(), adjustable.end(), *it);
+ if (found != adjustable.end()) {
+ // adjustable
+ w = (*it)->minSize().width() + each;
+ } else {
+ // fixed
+ w = (*it)->minSize().width();
+ }
+ // align it vertically
+ int yy = y;
+ int hh = std::max(std::min(h, (*it)->_max_size.height()),
+ (*it)->_min_size.height());
+ if (hh < h) {
+ switch(_alignment) {
+ case RenderStyle::RightBottomJustify:
+ yy += h - hh;
+ break;
+ case RenderStyle::CenterJustify:
+ yy += (h - hh) / 2;
+ break;
+ case RenderStyle::LeftTopJustify:
+ break;
+ }
+ }
+ (*it)->internal_moveresize(x, yy, w, hh);
+ (*it)->render();
+ (*it)->layout();
+ x += w + _bevel;
+ }
+}
- int str_height = _rect.height() - height / stretchable.size();
+void Widget::layoutVert()
+{
+ std::list<Widget*>::iterator it, end;
+
+ // work with just the visible children
+ std::list<Widget*> visible;
+ for (it = _children.begin(), end = _children.end(); it != end; ++it)
+ if ((*it)->visible())
+ visible.push_back(*it);
+
+ if (visible.empty()) return;
+
+ int x, y, w, h; // working area
+ x = y = _bevel;
+ w = _area.width() - _borderwidth * 2 - _bevel * 2;
+ h = _area.height() - _borderwidth * 2 - _bevel * 2;
+ if (w < 0 || h < 0) return; // not worth laying anything out!
+
+ int free = h - (visible.size() - 1) * _bevel;
+ if (free < 0) free = 0;
+ int each;
+
+ std::list<Widget*> adjustable;
+
+ // find the 'free' space, and how many children will be using it
+ for (it = visible.begin(), end = visible.end(); it != end; ++it) {
+ free -= (*it)->minSize().height();
+ if (free < 0) free = 0;
+ if ((*it)->maxSize().height() - (*it)->minSize().height() > 0)
+ adjustable.push_back(*it);
+ }
+ // some widgets may have max heights that restrict them, find the 'true'
+ // amount of free space after these widgets are not included
+ if (!adjustable.empty()) {
+ do {
+ each = free / adjustable.size();
+ for (it = adjustable.begin(), end = adjustable.end(); it != end;) {
+ std::list<Widget*>::iterator next = it; ++next;
+ int m = (*it)->maxSize().height() - (*it)->minSize().height();
+ if (m > 0 && m < each) {
+ free -= m;
+ if (free < 0) free = 0;
+ adjustable.erase(it);
+ break; // if one is found to be fixed, then the free space needs to
+ // change, and the rest need to be reexamined
+ }
+ it = next;
+ }
+ } while (it != end && !adjustable.empty());
+ }
- for (; str_it != str_end; ++str_it)
- (*str_it)->setHeight(str_height > _bevel_width ?
- str_height - _bevel_width : _bevel_width);
+ // place/size the widgets
+ if (!adjustable.empty())
+ each = free / adjustable.size();
+ else
+ each = 0;
+ for (it = visible.begin(), end = visible.end(); it != end; ++it) {
+ int h;
+ // is the widget adjustable?
+ std::list<Widget*>::const_iterator
+ found = std::find(adjustable.begin(), adjustable.end(), *it);
+ if (found != adjustable.end()) {
+ // adjustable
+ h = (*it)->minSize().height() + each;
+ } else {
+ // fixed
+ h = (*it)->minSize().height();
+ }
+ // align it horizontally
+ int xx = x;
+ int ww = std::max(std::min(w, (*it)->_max_size.width()),
+ (*it)->_min_size.width());
+ if (ww < w) {
+ switch(_alignment) {
+ case RenderStyle::RightBottomJustify:
+ xx += w - ww;
+ break;
+ case RenderStyle::CenterJustify:
+ xx += (w - ww) / 2;
+ break;
+ case RenderStyle::LeftTopJustify:
+ break;
+ }
+ }
+ (*it)->internal_moveresize(xx, y, ww, h);
+ (*it)->render();
+ (*it)->layout();
+ y += h + _bevel;
}
+}
- OtkWidget *prev_widget = 0;
+void Widget::render()
+{
+ if (!_dirty) return;
+ if (!_texture) {
+ // set a solid color as the default background
+ XSetWindowBackground(**display, _window,
+ RenderStyle::style(_screen)->
+ titlebarUnfocusBackground()->color().pixel());
+ return;
+ }
+ if (_borderwidth * 2 > _area.width() ||
+ _borderwidth * 2 > _area.height())
+ return; // no surface to draw on
+
+ Surface *s = new Surface(_screen, Size(_area.width() - _borderwidth * 2,
+ _area.height() - _borderwidth * 2));
+ display->renderControl(_screen)->drawBackground(*s, *_texture);
- for (it = _children.begin(); it != end; ++it) {
- if (!(tmp = dynamic_cast<OtkWidget*>(*it))) continue;
- int x, y;
+ renderForeground(*s); // for inherited types to render onto the _surface
- if (prev_widget)
- y = prev_widget->_rect.y() + prev_widget->_rect.height() + _bevel_width;
- else
- y = _rect.y() + _bevel_width;
- x = (widest - tmp->_rect.width()) / 2 + _bevel_width;
+ XSetWindowBackgroundPixmap(**display, _window, s->pixmap());
+ XClearWindow(**display, _window);
- tmp->move(x, y);
+ // delete the old surface *after* its pixmap isn't in use anymore
+ if (_surface) delete _surface;
- prev_widget = tmp;
- }
+ s->freePixelData(); // done rendering with this surface
+ _surface = s;
- internalResize(widest + _bevel_width * 2, height);
+ _dirty = false;
}
-void OtkWidget::update(void)
+void Widget::renderChildren()
{
- if (_dirty)
- adjust();
-
- OtkBaseWidget::update();
+ std::list<Widget*>::iterator it, end = _children.end();
+ for (it = _children.begin(); it != end; ++it)
+ (*it)->render();
}
-void OtkWidget::internalResize(int w, int h)
+void Widget::styleChanged(const RenderStyle &)
{
- assert(w > 0 && h > 0);
-
-// if (! _fixed_width && ! _fixed_height)
- resize(w, h);
-// else if (! _fixed_width)
-// resize(w, _rect.height());
-// else if (! _fixed_height)
-// resize(_rect.width(), h);
+ refresh();
}
-void OtkWidget::setEventDispatcher(OtkEventDispatcher *disp)
+void Widget::exposeHandler(const XExposeEvent &e)
{
- if (_event_dispatcher)
- _event_dispatcher->clearHandler(_window);
- _event_dispatcher = disp;
- _event_dispatcher->registerHandler(_window, this);
+ EventHandler::exposeHandler(e);
+ XClearArea(**display, _window, e.x, e.y, e.width, e.height, false);
}
+void Widget::configureHandler(const XConfigureEvent &e)
+{
+ if (_ignore_config) {
+ _ignore_config--;
+ } else {
+ // only interested in these for top level windows
+ if (_parent) return;
+
+ XEvent ev;
+ ev.xconfigure.width = e.width;
+ ev.xconfigure.height = e.height;
+ while (XCheckTypedWindowEvent(**display, window(), ConfigureNotify, &ev));
+
+ if (!(ev.xconfigure.width == area().width() &&
+ ev.xconfigure.height == area().height())) {
+ _area = Rect(_area.position(), Size(e.width, e.height));
+ update();
+ }
+ }
+}
}
projects / chaz / openbox / blobdiff