1 files changed, 519 insertions, 0 deletions
diff --git a/dw/ui.cc b/dw/ui.cc
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+++ b/dw/ui.cc
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+/*
+ * RTFL (originally part of dillo)
+ *
+ * Copyright 2005-2007 Sebastian Geerken <sgeerken@dillo.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version; with the following exception:
+ *
+ * The copyright holders of RTFL give you permission to link this file
+ * statically or dynamically against all versions of the graphviz
+ * library, which are published by AT&T Corp. under one of the following
+ * licenses:
+ *
+ * - Common Public License version 1.0 as published by International
+ *   Business Machines Corporation (IBM), or
+ * - Eclipse Public License version 1.0 as published by the Eclipse
+ *   Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+
+
+#include "core.hh"
+#include "../lout/debug.hh"
+
+#include <stdio.h>
+
+namespace dw {
+namespace core {
+namespace ui {
+
+using namespace lout;
+using namespace lout::object;
+
+int Embed::CLASS_ID = -1;
+
+Embed::Embed(Resource *resource)
+{
+   DBG_OBJ_CREATE ("dw::core::ui::Embed");
+   registerName ("dw::core::ui::Embed", &CLASS_ID);
+   this->resource = resource;
+   resource->setEmbed (this);
+   DBG_OBJ_ASSOC_CHILD (resource);
+}
+
+Embed::~Embed()
+{
+   delete resource;
+   DBG_OBJ_DELETE ();
+}
+
+void Embed::sizeRequestImpl (Requisition *requisition)
+{
+   resource->sizeRequest (requisition);
+}
+
+void Embed::getExtremesImpl (Extremes *extremes)
+{
+   resource->getExtremes (extremes);
+   correctExtremes (extremes);
+}
+
+void Embed::sizeAllocateImpl (Allocation *allocation)
+{
+   resource->sizeAllocate (allocation);
+}
+
+int Embed::getAvailWidthOfChild (Widget *child, bool forceValue)
+{
+   return resource->getAvailWidthOfChild (child, forceValue);
+}
+
+int Embed::getAvailHeightOfChild (Widget *child, bool forceValue)
+{
+   return resource->getAvailHeightOfChild (child, forceValue);
+}
+
+void Embed::correctRequisitionOfChild (Widget *child,
+                                       Requisition *requisition,
+                                       void (*splitHeightFun) (int, int*, int*))
+{
+   resource->correctRequisitionOfChild (child, requisition, splitHeightFun);
+}
+
+void Embed::correctExtremesOfChild (Widget *child, Extremes *extremes)
+{
+   resource->correctExtremesOfChild (child, extremes);
+}
+
+void Embed::containerSizeChangedForChildren ()
+{
+   DBG_OBJ_ENTER0 ("resize", 0, "containerSizeChangedForChildren");
+   resource->containerSizeChangedForChildren ();
+   DBG_OBJ_LEAVE ();
+}
+
+void Embed::enterNotifyImpl (core::EventCrossing *event)
+{
+   resource->emitEnter();
+   Widget::enterNotifyImpl(event);
+}
+
+void Embed::leaveNotifyImpl (core::EventCrossing *event)
+{
+   resource->emitLeave();
+   Widget::leaveNotifyImpl(event);
+}
+
+bool Embed::buttonPressImpl (core::EventButton *event)
+{
+   bool handled;
+
+   if (event->button == 3) {
+      resource->emitClicked(event);
+      handled = true;
+   } else {
+      handled = false;
+   }
+   return handled;
+}
+
+void Embed::setDisplayed (bool displayed)
+{
+   resource->setDisplayed (displayed);
+}
+
+void Embed::setEnabled (bool enabled)
+{
+   resource->setEnabled (enabled);
+}
+
+void Embed::draw (View *view, Rectangle *area)
+{
+   drawWidgetBox (view, area, false);
+   resource->draw (view, area);
+}
+
+Iterator *Embed::iterator (Content::Type mask, bool atEnd)
+{
+   return resource->iterator (mask, atEnd);
+}
+
+void Embed::setStyle (style::Style *style)
+{
+   resource->setStyle (style);
+   Widget::setStyle (style);
+}
+
+// ----------------------------------------------------------------------
+
+bool Resource::ActivateEmitter::emitToReceiver (lout::signal::Receiver
+                                                *receiver,
+                                                int signalNo,
+                                                int argc, Object **argv)
+{
+   ActivateReceiver *ar = (ActivateReceiver*)receiver;
+   Resource *res = (Resource*)((Pointer*)argv[0])->getValue ();
+
+   switch (signalNo) {
+   case 0:
+      ar->activate (res);
+      break;
+   case 1:
+      ar->enter (res);
+      break;
+   case 2:
+      ar->leave (res);
+      break;
+   default:
+      misc::assertNotReached ();
+   }
+   return false;
+}
+
+void Resource::ActivateEmitter::emitActivate (Resource *resource)
+{
+   Pointer p (resource);
+   Object *argv[1] = { &p };
+   emitVoid (0, 1, argv);
+}
+
+void Resource::ActivateEmitter::emitEnter (Resource *resource)
+{
+   Pointer p (resource);
+   Object *argv[1] = { &p };
+   emitVoid (1, 1, argv);
+}
+
+void Resource::ActivateEmitter::emitLeave (Resource *resource)
+{
+   Pointer p (resource);
+   Object *argv[1] = { &p };
+   emitVoid (2, 1, argv);
+}
+
+// ----------------------------------------------------------------------
+
+Resource::~Resource ()
+{
+   DBG_OBJ_DELETE ();
+}
+
+void Resource::setEmbed (Embed *embed)
+{
+   this->embed = embed;
+}
+
+void Resource::getExtremes (Extremes *extremes)
+{
+   DBG_OBJ_ENTER0 ("resize", 0, "getExtremes");
+
+   /* Simply return the requisition width */
+   Requisition requisition;
+   sizeRequest (&requisition);
+   extremes->minWidth = extremes->maxWidth = requisition.width;
+   extremes->minWidthIntrinsic = extremes->minWidth;
+   extremes->maxWidthIntrinsic = extremes->maxWidth;
+
+   DBG_OBJ_MSGF ("resize", 1, "result: %d / %d",
+                 extremes->minWidth, extremes->maxWidth);
+   DBG_OBJ_LEAVE ();
+}
+
+void Resource::sizeAllocate (Allocation *allocation)
+{
+}
+
+int Resource::getAvailWidthOfChild (Widget *child, bool forceValue)
+{
+   // Only used when the resource contains other dillo widgets.
+   misc::assertNotReached ();
+   return 0;
+}
+
+int Resource::getAvailHeightOfChild (Widget *child, bool forceValue)
+{
+   // Only used when the resource contains other dillo widgets.
+   misc::assertNotReached ();
+   return 0;
+}
+
+void Resource::correctRequisitionOfChild (Widget *child,
+                                          Requisition *requisition,
+                                          void (*splitHeightFun) (int, int*,
+                                                                  int*))
+{
+   // Only used when the resource contains other dillo widgets.
+   misc::assertNotReached ();
+}
+
+void Resource::correctExtremesOfChild (Widget *child, Extremes *extremes)
+{
+   // Only used when the resource contains other dillo widgets.
+   misc::assertNotReached ();
+}
+
+void Resource::containerSizeChangedForChildren ()
+{
+   // No children by default.
+}
+
+void Resource::setDisplayed (bool displayed)
+{
+}
+
+void Resource::draw (View *view, Rectangle *area)
+{
+}
+
+void Resource::setStyle (style::Style *style)
+{
+}
+
+void Resource::emitEnter ()
+{
+   activateEmitter.emitEnter(this);
+}
+
+void Resource::emitLeave ()
+{
+   activateEmitter.emitLeave(this);
+}
+
+bool Resource::ClickedEmitter::emitToReceiver(lout::signal::Receiver *receiver,
+                                              int signalNo, int argc,
+                                              Object **argv)
+{
+   ((ClickedReceiver*)receiver)
+      ->clicked ((Resource*)((Pointer*)argv[0])->getValue (),
+                 (EventButton*)((Pointer*)argv[1])->getValue());
+   return false;
+}
+
+void Resource::ClickedEmitter::emitClicked (Resource *resource,
+                                            EventButton *event)
+{
+   Pointer p1 (resource);
+   Pointer p2 (event);
+   Object *argv[2] = { &p1, &p2 };
+   emitVoid (0, 2, argv);
+}
+
+// ----------------------------------------------------------------------
+
+Iterator *LabelButtonResource::iterator (Content::Type mask, bool atEnd)
+{
+   /** \todo Perhaps in brackets? */
+   // return new TextIterator (getEmbed (), mask, atEnd, getLabel ());
+   /** \bug Not implemented. */
+   return new EmptyIterator (getEmbed (), mask, atEnd);
+}
+
+// ----------------------------------------------------------------------
+
+void ComplexButtonResource::LayoutReceiver::resizeQueued (bool extremesChanged)
+{
+   DBG_OBJ_ENTER ("resize", 0, "LayoutReceiver/resizeQueued", "%s",
+                  extremesChanged ? "true" : "false");
+   resource->queueResize (extremesChanged);
+   DBG_OBJ_LEAVE ();
+}
+
+ComplexButtonResource::ComplexButtonResource ()
+{
+   DBG_OBJ_CREATE ("dw::core::ui::ComplexButtonResource");
+   layout = NULL;
+   layoutReceiver.resource = this;
+   click_x = click_y = -1;
+}
+
+void ComplexButtonResource::init (Widget *widget)
+{
+   childWidget = widget;
+
+   layout = new Layout (createPlatform ());
+   setLayout (layout);
+   DBG_OBJ_ASSOC_CHILD (layout);
+   layout->setWidget (widget);
+   layout->connect (&layoutReceiver);
+
+   if (getEmbed ())
+      childWidget->setQuasiParent (getEmbed ());
+}
+
+void ComplexButtonResource::setEmbed (Embed *embed)
+{
+   ButtonResource::setEmbed (embed);
+
+   if (childWidget)
+      childWidget->setQuasiParent (getEmbed ());
+}
+
+ComplexButtonResource::~ComplexButtonResource ()
+{
+   delete layout;
+   DBG_OBJ_DELETE ();
+}
+
+void ComplexButtonResource::sizeRequest (Requisition *requisition)
+{
+   DBG_OBJ_ENTER0 ("resize", 0, "sizeRequest");
+
+   Requisition widgetRequisition;
+   childWidget->sizeRequest (&widgetRequisition);
+   requisition->width = widgetRequisition.width + 2 * reliefXThickness ();
+   requisition->ascent = widgetRequisition.ascent + reliefYThickness ();
+   requisition->descent = widgetRequisition.descent + reliefYThickness ();
+
+   DBG_OBJ_MSGF ("resize", 1, "result: %d * (%d + %d)",
+                 requisition->width, requisition->ascent, requisition->descent);
+   DBG_OBJ_LEAVE ();
+}
+
+void ComplexButtonResource::getExtremes (Extremes *extremes)
+{
+   DBG_OBJ_ENTER0 ("resize", 0, "getExtremes");
+
+   Extremes widgetExtremes;
+   childWidget->getExtremes (&widgetExtremes);
+   extremes->minWidth = widgetExtremes.minWidth + 2 * reliefXThickness ();
+   extremes->maxWidth = widgetExtremes.maxWidth + 2 * reliefXThickness ();
+   extremes->minWidthIntrinsic = extremes->minWidth;
+   extremes->maxWidthIntrinsic = extremes->maxWidth;
+
+   DBG_OBJ_MSGF ("resize", 1, "result: %d / %d",
+                 extremes->minWidth, extremes->maxWidth);
+   DBG_OBJ_LEAVE ();
+}
+
+void ComplexButtonResource::sizeAllocate (Allocation *allocation)
+{
+}
+
+int ComplexButtonResource::getAvailWidthOfChild (Widget *child, bool forceValue)
+{
+   int embedWidth = getEmbed()->getAvailWidth (forceValue);
+   if (embedWidth == -1)
+      return -1;
+   else
+      return misc::max (embedWidth - 2 * reliefXThickness (), 0);
+}
+
+int ComplexButtonResource::getAvailHeightOfChild (Widget *child,
+                                                  bool forceValue)
+{
+   int embedHeight = getEmbed()->getAvailHeight (forceValue);
+   if (embedHeight == -1)
+      return -1;
+   else
+      return misc::max (embedHeight - 2 * reliefYThickness (), 0);
+}
+
+void ComplexButtonResource::correctRequisitionOfChild (Widget *child,
+                                                       Requisition *requisition,
+                                                       void (*splitHeightFun)
+                                                       (int, int*, int*))
+{
+   // Similar to Widget::correctRequisitionOfChild, but for percentage
+   // the relief has to be considered.
+
+   if (style::isPerLength (child->getStyle()->width)) {
+      int availWidth = getEmbed()->getAvailHeight (false);
+      if (availWidth != -1) {
+         int baseWidth = misc::max (availWidth
+                                    - getEmbed()->boxDiffWidth ()
+                                    - 2 * reliefXThickness (),
+                                    0);
+         requisition->width =
+            child->applyPerWidth (baseWidth, child->getStyle()->width);
+      }
+   } else
+      getEmbed()->correctReqWidthOfChildNoRec (child, requisition);
+
+   // TODO Percentage heights are ignored again.
+   getEmbed()->correctReqHeightOfChildNoRec (child, requisition,
+                                             splitHeightFun);
+
+}
+
+void ComplexButtonResource::correctExtremesOfChild (Widget *child,
+                                                    Extremes *extremes)
+{
+   // Similar to Widget::correctExtremesOfChild, but for percentage
+   // the relief has to be considered.
+
+   if (style::isPerLength (child->getStyle()->width)) {
+      int availWidth = getEmbed()->getAvailHeight (false);
+      if (availWidth != -1) {
+         int baseWidth = misc::max (availWidth
+                                    - getEmbed()->boxDiffWidth ()
+                                    - 2 * reliefXThickness (),
+                                    0);
+         extremes->minWidth = extremes->maxWidth =
+            child->applyPerWidth (baseWidth, child->getStyle()->width);
+      }
+   } else
+      getEmbed()->correctExtremesOfChildNoRec (child, extremes);
+}
+
+void ComplexButtonResource::containerSizeChangedForChildren ()
+{
+   layout->containerSizeChanged ();
+}
+
+Iterator *ComplexButtonResource::iterator (Content::Type mask, bool atEnd)
+{
+   /**
+    * \bug Implementation.
+    * This is a bit more complicated: We have two layouts here.
+    */
+   return new EmptyIterator (getEmbed (), mask, atEnd);
+}
+
+// ----------------------------------------------------------------------
+
+Iterator *TextResource::iterator (Content::Type mask, bool atEnd)
+{
+   // return new TextIterator (getEmbed (), mask, atEnd, getText ());
+   /** \bug Not implemented. */
+   return new EmptyIterator (getEmbed (), mask, atEnd);
+}
+
+// ----------------------------------------------------------------------
+
+Iterator *CheckButtonResource::iterator (Content::Type mask, bool atEnd)
+{
+   //return new TextIterator (getEmbed (), mask, atEnd,
+   //                         isActivated () ? "[X]" : "[ ]");
+   /** \bug Not implemented. */
+   return new EmptyIterator (getEmbed (), mask, atEnd);
+}
+
+// ----------------------------------------------------------------------
+
+RadioButtonResource::GroupIterator::~GroupIterator ()
+{
+}
+
+Iterator *RadioButtonResource::iterator (Content::Type mask, bool atEnd)
+{
+   //return new TextIterator (getEmbed (), mask, atEnd,
+   //                         isActivated () ? "(*)" : "( )");
+   /** \bug Not implemented. */
+   return new EmptyIterator (getEmbed (), mask, atEnd);
+}
+
+} // namespace ui
+} // namespace core
+} // namespace dw
+