X-Git-Url: https://git.dogcows.com/gitweb?a=blobdiff_plain;f=otk%2Fwidget.cc;h=612a252d259ad117ce5ffb30799f72762781e212;hb=99cd843fc6dc7a7f55b6c90fd1162f233853aad2;hp=1da7dd9025f15a32e75e6c9b9eeb09c87abc2905;hpb=c187fbdf60956f3bf6392bfd132ba960e43ef4ec;p=chaz%2Fopenbox

diff --git a/otk/widget.cc b/otk/widget.cc
index 1da7dd90..612a252d 100644
--- a/otk/widget.cc
+++ b/otk/widget.cc
@@ -1,188 +1,486 @@
 // -*- 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(UINT_MAX, UINT_MAX),
+    _visible(false),
+    _bordercolor(0),
+    _borderwidth(0),
+    _bevel(bevel),
+    _dirty(true),
+    _dispatcher(ed),
+    _ignore_config(0)
 {
-  assert(parent);
-  _event_dispatcher->registerHandler(getWindow(), this);
+  createWindow(overrideredir);
+  _dispatcher->registerHandler(_window, this);
 }
 
-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(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(UINT_MAX, UINT_MAX),
+    _visible(false),
+    _bordercolor(0),
+    _borderwidth(0),
+    _bevel(bevel),
+    _dirty(true),
+    _dispatcher(parent->_dispatcher),
+    _ignore_config(0)
 {
-  assert(event_dispatcher);
-  _event_dispatcher->registerHandler(getWindow(), this);
+  assert(parent);
+  createWindow(false);
+  parent->addChild(this);
+  parent->layout();
+  _dispatcher->registerHandler(_window, this);
 }
 
-OtkWidget::~OtkWidget()
+Widget::~Widget()
 {
-  _event_dispatcher->clearHandler(_window);
+  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);
 }
 
-void OtkWidget::adjust(void)
+void Widget::show(bool children)
 {
-  if (_direction == Horizontal)
-    adjustHorz();
-  else
-    adjustVert();
+  if (children) {
+    std::list<Widget*>::iterator it , end = _children.end();
+    for (it = _children.begin(); it != end; ++it)
+      (*it)->show(true);
+  }
+  if (!_visible) {
+    _visible = true;
+    XMapWindow(**display, _window);
+    update();
+  }
 }
 
-void OtkWidget::adjustHorz(void)
+void Widget::hide()
 {
-  if (_children.size() == 0)
-    return;
+  if (_visible) {
+    _visible = false;
+    XUnmapWindow(**display, _window);
+    if (_parent) _parent->layout();
+  }
+} 
 
-  OtkWidget *tmp;
-  OtkBaseWidgetList::iterator it, end = _children.end();
+void Widget::setEventMask(long e)
+{
+  XSelectInput(**display, _window, e);
+  _event_mask = e;
+}
 
-  int tallest = 0;
-  int width = _bevel_width;
-  OtkBaseWidgetList stretchable;
+void Widget::update()
+{
+  _dirty = true;
+  if (parent())
+    parent()->layout(); // relay-out us and our siblings
+  else {
+    render();
+    layout();
+  }
+}
 
-  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;
+void Widget::moveresize(const Rect &r)
+{
+  unsigned int w, h;
+  w = std::min(std::max(r.width(), minSize().width()), maxSize().width());
+  h = std::min(std::max(r.height(), minSize().height()), maxSize().height());
 
-    if (tmp->_rect.height() > tallest)
-      tallest = tmp->_rect.height();
+  if (r.x() == area().x() && r.y() == area().y() &&
+      w == area().width() && h == area().height()) {
+    return; // no change, don't cause a big layout chain to occur!
   }
+  
+  internal_moveresize(r.x(), r.y(), w, h);
 
-  if (stretchable.size() > 0) {
-    OtkBaseWidgetList::iterator str_it = stretchable.begin(),
-      str_end = stretchable.end();
+  update();
+}
 
-    int str_width = _rect.width() - width / stretchable.size();
+void Widget::internal_moveresize(int x, int y, unsigned w, unsigned int h)
+{
+  assert(w > 0);
+  assert(h > 0);
+  assert(_borderwidth >= 0);
+  _dirty = true;
+  XMoveResizeWindow(**display, _window, x, y,
+                    w - _borderwidth * 2,
+                    h - _borderwidth * 2);
+  _ignore_config++;
+
+  _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;
-
-  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;
+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();
+}
 
-    tmp->move(x, y);
+void Widget::setMinSize(const Size &s)
+{
+  _min_size = s;
+  update();
+}
 
-    prev_widget = tmp;
-  }
+void Widget::setMaxSize(const Size &s)
+{
+  _max_size = s;
+  update();
+}
 
-  internalResize(width, tallest + _bevel_width * 2);
+void Widget::setBorderColor(const RenderColor *c)
+{
+  _bordercolor = c;
+  XSetWindowBorder(**otk::display, _window,
+                   c ? c->pixel() : BlackPixel(**otk::display, _screen));
 }
 
-void OtkWidget::adjustVert(void)
+void Widget::setBevel(int b)
 {
-  if (_children.size() == 0)
-    return;
+  _bevel = b;
+  calcDefaultSizes();
+  layout();
+}
 
-  OtkWidget *tmp;
-  OtkBaseWidgetList::iterator it, end = _children.end();
+void Widget::layout()
+{
+  if (_direction == Horizontal)
+    layoutHorz();
+  else
+    layoutVert();
+}
 
-  int widest = 0;
-  int height = _bevel_width;
-  OtkBaseWidgetList stretchable;
+void Widget::layoutHorz()
+{
+  std::list<Widget*>::iterator it, end;
+
+  // work with just the visible children
+  std::list<Widget*> visible = _children;
+  for (it = visible.begin(), end = visible.end(); it != end;) {
+    std::list<Widget*>::iterator next = it; ++next;
+    if (!(*it)->visible())
+      visible.erase(it);
+    it = next;
+  }
 
-  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;
+  if (visible.empty()) return;
+
+  if ((unsigned)(_borderwidth * 2 + _bevel * 2) > _area.width() ||
+      (unsigned)(_borderwidth * 2 + _bevel * 2) > _area.height())
+    return; // not worth laying anything out!
+  
+  int x, y; unsigned int w, h; // working area
+  x = y = _bevel;
+  w = _area.width() - _borderwidth * 2 - _bevel * 2;
+  h = _area.height() - _borderwidth * 2 - _bevel * 2;
+
+  int free = w - (visible.size() - 1) * _bevel;
+  if (free < 0) free = 0;
+  unsigned int each;
+  
+  std::list<Widget*> adjustable = visible;
+
+  // find the 'free' space, and how many children will be using it
+  for (it = adjustable.begin(), end = adjustable.end(); it != end;) {
+    std::list<Widget*>::iterator next = it; ++next;
+    free -= (*it)->minSize().width();
+    if (free < 0) free = 0;
+    if ((*it)->maxSize().width() - (*it)->minSize().width() <= 0)
+      adjustable.erase(it);
+    it = next;
+  }
+  // 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;
+        unsigned 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 (tmp->_rect.width() > widest)
-      widest = tmp->_rect.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) {
+    unsigned 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;
+    unsigned 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;
   }
+}
 
-  if (stretchable.size() > 0) {
-    OtkBaseWidgetList::iterator str_it = stretchable.begin(),
-      str_end = stretchable.end();
+void Widget::layoutVert()
+{
+  std::list<Widget*>::iterator it, end;
+
+  // work with just the visible children
+  std::list<Widget*> visible = _children;
+  for (it = visible.begin(), end = visible.end(); it != end;) {
+    std::list<Widget*>::iterator next = it; ++next;
+    if (!(*it)->visible())
+      visible.erase(it);
+    it = next;
+  }
 
-    int str_height = _rect.height() - height / stretchable.size();
+  if (visible.empty()) return;
+
+  if ((unsigned)(_borderwidth * 2 + _bevel * 2) > _area.width() ||
+      (unsigned)(_borderwidth * 2 + _bevel * 2) > _area.height())
+    return; // not worth laying anything out!
+  
+  int x, y; unsigned int w, h; // working area
+  x = y = _bevel;
+  w = _area.width() - _borderwidth * 2 - _bevel * 2;
+  h = _area.height() - _borderwidth * 2 - _bevel * 2;
+
+  int free = h - (visible.size() - 1) * _bevel;
+  if (free < 0) free = 0;
+  unsigned int each;
+
+  std::list<Widget*> adjustable = visible;
+
+  // find the 'free' space, and how many children will be using it
+  for (it = adjustable.begin(), end = adjustable.end(); it != end;) {
+    std::list<Widget*>::iterator next = it; ++next;
+    free -= (*it)->minSize().height();
+    if (free < 0) free = 0;
+    if ((*it)->maxSize().height() - (*it)->minSize().height() <= 0)
+      adjustable.erase(it);
+    it = next;
+  }
+  // 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;
+        unsigned 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) {
+    unsigned 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;
+    unsigned 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 (!_texture || !_dirty) return;
+  if ((unsigned)_borderwidth * 2 > _area.width() ||
+      (unsigned)_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;
-  }
+  _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::exposeHandler(const XExposeEvent &e)
 {
-  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);
+  EventHandler::exposeHandler(e);
+  XClearArea(**display, _window, e.x, e.y, e.width, e.height, false);
 }
 
-void OtkWidget::setEventDispatcher(OtkEventDispatcher *disp)
+void Widget::configureHandler(const XConfigureEvent &e)
 {
-  if (_event_dispatcher)
-    _event_dispatcher->clearHandler(_window);
-  _event_dispatcher = disp;
-  _event_dispatcher->registerHandler(_window, this);
+  if (_ignore_config) {
+    _ignore_config--;
+  } else {
+    XEvent ev;
+    ev.xconfigure.width = e.width;
+    ev.xconfigure.height = e.height;
+    while (XCheckTypedWindowEvent(**display, window(), ConfigureNotify, &ev));
+
+    if (!((unsigned)ev.xconfigure.width == area().width() &&
+          (unsigned)ev.xconfigure.height == area().height())) {
+      _area = Rect(_area.position(), Size(e.width, e.height));
+      update();
+    }
+  }
 }
 
-
 }