Initial import of Dillo
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251
dw/oofawarewidget_iterator.cc
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251
dw/oofawarewidget_iterator.cc
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/*
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* Dillo Widget
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*
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* Copyright 2014 Sebastian Geerken <sgeerken@dillo.org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "oofawarewidget.hh"
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#include "ooffloatsmgr.hh"
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#include "oofposabsmgr.hh"
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#include "oofposfixedmgr.hh"
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using namespace dw;
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using namespace dw::core;
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using namespace lout::misc;
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using namespace lout::object;
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namespace dw {
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namespace oof {
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// "numContentsInFlow" is passed here to avoid indirectly calling the (virtual)
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// method numContentsInFlow() from the constructor.
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OOFAwareWidget::OOFAwareWidgetIterator::OOFAwareWidgetIterator
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(OOFAwareWidget *widget, Content::Type mask, bool atEnd,
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int numContentsInFlow) :
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Iterator (widget, mask, atEnd)
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{
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if (atEnd) {
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sectionIndex = NUM_SECTIONS - 1;
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while (sectionIndex >= 0 &&
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numParts (sectionIndex, numContentsInFlow) == 0)
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sectionIndex--;
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index = numParts (sectionIndex, numContentsInFlow);
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} else {
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sectionIndex = 0;
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index = -1;
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}
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content.type = atEnd ? core::Content::END : core::Content::START;
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}
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void OOFAwareWidget::OOFAwareWidgetIterator::setValues (int sectionIndex,
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int index)
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{
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this->sectionIndex = sectionIndex;
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this->index = index;
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if (sectionIndex < 0 || index < 0)
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content.type = core::Content::START;
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else if (sectionIndex >= NUM_SECTIONS || index >= numParts (sectionIndex))
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content.type = core::Content::END;
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else
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getPart (sectionIndex, index, &content);
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}
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int OOFAwareWidget::OOFAwareWidgetIterator::numParts (int sectionIndex,
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int numContentsInFlow)
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{
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DBG_OBJ_ENTER_O ("iterator", 0, getWidget(), "numParts", "%d, %d",
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sectionIndex, numContentsInFlow);
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OOFAwareWidget *widget = (OOFAwareWidget*)getWidget();
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int result;
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if (sectionIndex < 0 || sectionIndex > NUM_SECTIONS) {
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DBG_OBJ_MARKF_O("iterator", 0, getWidget(), "invalid sectionIndex %d",
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sectionIndex);
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result = 0;
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} else if (sectionIndex == 0)
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result = numContentsInFlow == -1 ?
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this->numContentsInFlow () : numContentsInFlow;
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else
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result = widget->outOfFlowMgr[sectionIndex - 1] ?
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widget->outOfFlowMgr[sectionIndex - 1]->getNumWidgets () : 0;
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DBG_OBJ_MSGF_O ("iterator", 1, getWidget(), "=> %d", result);
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DBG_OBJ_LEAVE_O (getWidget());
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return result;
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}
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void OOFAwareWidget::OOFAwareWidgetIterator::getPart (int sectionIndex,
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int index,
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Content *content)
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{
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OOFAwareWidget *widget = (OOFAwareWidget*)getWidget();
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if (sectionIndex == 0)
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getContentInFlow (index, content);
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else {
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content->type = Content::WIDGET_OOF_CONT;
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content->widget =
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widget->outOfFlowMgr[sectionIndex - 1]->getWidget (index);
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}
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}
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void OOFAwareWidget::OOFAwareWidgetIterator::intoStringBuffer (StringBuffer *sb)
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{
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Iterator::intoStringBuffer (sb);
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sb->append (", sectionIndex = ");
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sb->appendInt (sectionIndex);
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sb->append (", index = ");
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sb->appendInt (index);
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}
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int OOFAwareWidget::OOFAwareWidgetIterator::compareTo (Comparable *other)
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{
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OOFAwareWidgetIterator *otherTI = (OOFAwareWidgetIterator*)other;
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if (sectionIndex != otherTI->sectionIndex)
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return sectionIndex - otherTI->sectionIndex;
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else
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return index - otherTI->index;
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}
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bool OOFAwareWidget::OOFAwareWidgetIterator::next ()
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{
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DBG_OBJ_ENTER0_O ("iterator", 0, getWidget (),
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"OOFAwareWidgetIterator/next");
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DBG_IF_RTFL {
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StringBuffer sb;
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intoStringBuffer (&sb);
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DBG_OBJ_MSGF_O ("iterator", 1, getWidget (),
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"initial value: %s; sectionIndex = %d, index = %d",
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sb.getChars (), sectionIndex, index);
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}
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bool found = false;
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if (content.type != Content::END) {
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while (!found) {
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++index;
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if (sectionIndex >= 0 && sectionIndex < NUM_SECTIONS &&
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index >= 0 && index < numParts (sectionIndex)) {
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getPart (sectionIndex, index, &content);
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} else {
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while (++sectionIndex < NUM_SECTIONS &&
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numParts (sectionIndex) == 0) ;
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if (sectionIndex >= NUM_SECTIONS) {
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content.type = Content::END;
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break;
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} else {
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index = -1;
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continue;
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}
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}
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found = (content.type & getMask());
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}
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}
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DBG_IF_RTFL {
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StringBuffer sb;
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intoStringBuffer (&sb);
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DBG_OBJ_MSGF_O ("iterator", 1, getWidget (), "final value: %s",
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sb.getChars ());
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}
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DBG_OBJ_LEAVE_VAL_O (getWidget (), "%s", boolToStr (found));
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return found;
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}
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bool OOFAwareWidget::OOFAwareWidgetIterator::prev ()
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{
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DBG_OBJ_ENTER0_O ("iterator", 0, getWidget (),
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"OOFAwareWidgetIterator/prev");
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DBG_IF_RTFL {
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StringBuffer sb;
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intoStringBuffer (&sb);
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DBG_OBJ_MSGF_O ("iterator", 1, getWidget (),
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"initial value: %s; sectionIndex = %d, index = %d",
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sb.getChars (), sectionIndex, index);
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}
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bool found = false;
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if (content.type != Content::START) {
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while (!found) {
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index--;
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if (sectionIndex >= 0 && sectionIndex < NUM_SECTIONS &&
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index >= 0 && index < numParts (sectionIndex)) {
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getPart (sectionIndex, index, &content);
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} else {
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while (--sectionIndex >= 0 && numParts (sectionIndex) == 0) ;
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if (sectionIndex < 0) {
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content.type = Content::START;
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break;
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} else {
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index = numParts (sectionIndex);
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continue;
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}
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}
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found = (content.type & getMask());
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}
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}
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DBG_IF_RTFL {
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StringBuffer sb;
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intoStringBuffer (&sb);
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DBG_OBJ_MSGF_O ("iterator", 1, getWidget (), "final value: %s",
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sb.getChars ());
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}
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DBG_OBJ_LEAVE_VAL_O (getWidget (), "%s", boolToStr (found));
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return found;
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}
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void OOFAwareWidget::OOFAwareWidgetIterator::highlightOOF (int start, int end,
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HighlightLayer layer)
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{
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// TODO What about OOF widgets?
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}
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void OOFAwareWidget::OOFAwareWidgetIterator::unhighlightOOF (int direction,
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HighlightLayer
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layer)
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{
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// TODO What about OOF widgets?
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}
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void OOFAwareWidget::OOFAwareWidgetIterator::getAllocationOOF (int start,
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int end,
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Allocation
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*allocation)
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{
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// TODO Consider start and end?
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OOFAwareWidget *widget = (OOFAwareWidget*)getWidget();
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*allocation = *(widget->outOfFlowMgr[sectionIndex - 1]
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->getWidget(index)->getAllocation());
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}
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} // namespace oof
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} // namespace dw
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