GUI: Add a grouped list widget with collapsible groups
This commit is contained in:
av-dx
Eugene Sandulenko
parent
4961a867fb
commit
4eb5043ed5
5 changed files with 485 additions and 6 deletions
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@ -47,7 +47,7 @@
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#include "gui/saveload.h"
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#include "gui/unknown-game-dialog.h"
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#include "gui/widgets/edittext.h"
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#include "gui/widgets/list.h"
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#include "gui/widgets/groupedlist.h"
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#include "gui/widgets/tab.h"
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#include "gui/widgets/popup.h"
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#include "gui/widgets/grid.h"
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@ -910,7 +910,7 @@ void LauncherSimple::build() {
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_searchClearButton = addClearButton(this, "Launcher.SearchClearButton", kSearchClearCmd);
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// Add list with game titles
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_list = new ListWidget(this, "Launcher.GameList", Common::U32String(), kListSearchCmd);
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_list = new GroupedListWidget(this, "Launcher.GameList", Common::U32String(), kListSearchCmd);
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_list->setEditable(false);
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_list->enableDictionarySelect(true);
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_list->setNumberingMode(kListNumberingOff);
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@ -935,6 +935,7 @@ void LauncherSimple::build() {
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void LauncherSimple::updateListing() {
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U32StringArray l;
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U32StringArray attrs;
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ListWidget::ColorList colors;
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ThemeEngine::FontColor color;
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int numEntries = ConfMan.getInt("gui_list_max_scan_entries");
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@ -989,14 +990,15 @@ void LauncherSimple::updateListing() {
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// description += Common::String::format(" (%s)", _("Not found"));
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}
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}
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// TEST: currently testing the grouping with just the first letter.
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attrs.push_back(iter->description.substr(0, 1));
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l.push_back(iter->description);
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colors.push_back(color);
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_domains.push_back(iter->key);
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}
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const int oldSel = _list->getSelected();
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_list->setList(l, &colors);
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_list->setList(l, &colors, &attrs);
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if (oldSel < (int)l.size())
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_list->setSelected(oldSel); // Restore the old selection
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else if (oldSel != -1)
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@ -55,7 +55,7 @@ enum {
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class BrowserDialog;
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class CommandSender;
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class ListWidget;
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class GroupedListWidget;
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class ContainerWidget;
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class EntryContainerWidget;
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class GridWidget;
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@ -193,7 +193,7 @@ protected:
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const int getSelected() override;
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void build() override;
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private:
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ListWidget *_list;
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GroupedListWidget *_list;
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ButtonWidget *_addButton;
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Widget *_startButton;
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ButtonWidget *_loadButton;
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@ -34,6 +34,7 @@ MODULE_OBJS := \
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widgets/editable.o \
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widgets/edittext.o \
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widgets/list.o \
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widgets/groupedlist.o \
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widgets/popup.o \
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widgets/grid.o \
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widgets/scrollbar.o \
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400
gui/widgets/groupedlist.cpp
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400
gui/widgets/groupedlist.cpp
Normal file
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@ -0,0 +1,400 @@
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/* ScummVM - Graphic Adventure Engine
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*
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* ScummVM is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the COPYRIGHT
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* file distributed with this source distribution.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (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, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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*/
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#include "common/system.h"
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#include "common/frac.h"
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#include "common/tokenizer.h"
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#include "gui/widgets/groupedlist.h"
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#include "gui/widgets/scrollbar.h"
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#include "gui/dialog.h"
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#include "gui/gui-manager.h"
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#include "gui/ThemeEval.h"
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#define kGroupTag -2
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namespace GUI {
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GroupedListWidget::GroupedListWidget(Dialog *boss, const String &name, const Common::U32String &tooltip, uint32 cmd)
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: ListWidget(boss, name, tooltip, cmd) {
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}
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void GroupedListWidget::setList(const U32StringArray &list, const ColorList *colors, const U32StringArray *attrValues) {
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if (_editMode && _caretVisible)
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drawCaret(true);
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// Copy everything
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_dataList = list;
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_list = list;
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_filter.clear();
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_listIndex.clear();
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_listColors.clear();
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if (colors) {
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_listColors = *colors;
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assert(_listColors.size() == _dataList.size());
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}
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if (attrValues) {
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_attributeValues = *attrValues;
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assert(_attributeValues.size() == _dataList.size());
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}
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int size = list.size();
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if (_currentPos >= size)
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_currentPos = size - 1;
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if (_currentPos < 0)
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_currentPos = 0;
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_selectedItem = -1;
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_editMode = false;
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g_system->setFeatureState(OSystem::kFeatureVirtualKeyboard, false);
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groupByAttribute();
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scrollBarRecalc();
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}
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void GroupedListWidget::append(const String &s, ThemeEngine::FontColor color) {
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if (_dataList.size() == _listColors.size()) {
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// If the color list has the size of the data list, we append the color.
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_listColors.push_back(color);
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} else if (!_listColors.size() && color != ThemeEngine::kFontColorNormal) {
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// If it's the first entry to use a non default color, we will fill
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// up all other entries of the color list with the default color and
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// add the requested color for the new entry.
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for (uint i = 0; i < _dataList.size(); ++i)
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_listColors.push_back(ThemeEngine::kFontColorNormal);
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_listColors.push_back(color);
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}
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_dataList.push_back(s);
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_list.push_back(s);
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setFilter(_filter, false);
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scrollBarRecalc();
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}
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void GroupedListWidget::groupByAttribute() {
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if (_attributeValues.empty()) return;
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_groupExpanded.clear();
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_groupHeaders.clear();
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_groupValueIndex.clear();
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_itemsInGroup.clear();
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for (uint i = 0; i < _dataList.size(); ++i) {
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int groupID;
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U32StringArray::iterator attrVal = _attributeValues.begin() + i;
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if (!_groupValueIndex.contains(*attrVal)) {
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int newGroupID = _groupValueIndex.size();
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_groupValueIndex.setVal(*attrVal, newGroupID);
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_groupHeaders.push_back(*attrVal);
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_groupExpanded.push_back(true);
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}
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groupID = _groupValueIndex.getVal(*attrVal);
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_itemsInGroup[groupID].push_back(i);
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}
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sortGroups();
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}
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void GroupedListWidget::sortGroups() {
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int oldListSize = _list.size();
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_list.clear();
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_listIndex.clear();
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for (uint groupID = 0; groupID != _groupHeaders.size(); ++groupID) {
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_listColors.push_back(_listColors.front());
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_listIndex.push_back(kGroupTag - groupID);
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_list.push_back(_groupHeaders[groupID]);
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if (_groupExpanded[groupID]) {
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for (auto k = _itemsInGroup[groupID].begin(); k != _itemsInGroup[groupID].end(); ++k) {
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_list.push_back(Common::U32String(" ") + _dataList[*k]);
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_listIndex.push_back(*k);
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}
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}
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}
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checkBounds();
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scrollBarRecalc();
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// FIXME: Temporary solution to clear/display the background ofthe scrollbar when list
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// grows too small or large during group toggle. We shouldn't have to redraw the top dialog,
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// but not doing so the background of scrollbar isn't cleared.
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if (((_scrollBar->_entriesPerPage < oldListSize) && (_scrollBar->_entriesPerPage > _list.size())) ||
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((_scrollBar->_entriesPerPage > oldListSize) && (_scrollBar->_entriesPerPage < _list.size()))) {
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g_gui.scheduleTopDialogRedraw();
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} else {
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markAsDirty();
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}
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}
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void GroupedListWidget::setSelected(int item) {
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// HACK/FIXME: If our _listIndex has a non zero size,
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// we will need to look up, whether the user selected
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// item is present in that list
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if (!_filter.empty()) {
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int filteredItem = -1;
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for (uint i = 0; i < _listIndex.size(); ++i) {
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if (_listIndex[i] == item) {
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filteredItem = i;
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break;
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}
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}
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item = filteredItem;
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}
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assert(item >= -1 && item < (int)_list.size());
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// We only have to do something if the widget is enabled and the selection actually changes
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if (isEnabled() && _selectedItem != item) {
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if (_editMode)
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abortEditMode();
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_selectedItem = item;
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// Notify clients that the selection changed.
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sendCommand(kListSelectionChangedCmd, _selectedItem);
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_currentPos = _selectedItem - _entriesPerPage / 2;
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scrollToCurrent();
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markAsDirty();
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}
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}
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void GroupedListWidget::handleMouseDown(int x, int y, int button, int clickCount) {
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if (!isEnabled())
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return;
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// First check whether the selection changed
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int newSelectedItem = findItem(x, y);
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int selectID = getSelected();
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if (_selectedItem != newSelectedItem && newSelectedItem != -1) {
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if (_editMode)
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abortEditMode();
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_selectedItem = newSelectedItem;
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sendCommand(kListSelectionChangedCmd, _selectedItem);
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}
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// TODO: Determine where inside the string the user clicked and place the
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// caret accordingly.
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// See _editScrollOffset and EditTextWidget::handleMouseDown.
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markAsDirty();
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}
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void GroupedListWidget::handleMouseUp(int x, int y, int button, int clickCount) {
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// If this was a double click and the mouse is still over
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// the selected item, send the double click command
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if (clickCount == 2 && (_selectedItem == findItem(x, y))) {
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int selectID = getSelected();
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if (selectID >= 0) {
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sendCommand(kListItemDoubleClickedCmd, _selectedItem);
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} else if (selectID <= kGroupTag) {
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int groupID = -selectID + kGroupTag;
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toggleGroup(groupID);
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warning("%d", groupID);
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}
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}
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}
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void GroupedListWidget::handleMouseWheel(int x, int y, int direction) {
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_scrollBar->handleMouseWheel(x, y, direction);
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}
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void GroupedListWidget::handleCommand(CommandSender *sender, uint32 cmd, uint32 data) {
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switch (cmd) {
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case kSetPositionCmd:
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if (_currentPos != (int)data) {
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_currentPos = data;
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checkBounds();
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markAsDirty();
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// Scrollbar actions cause list focus (which triggers a redraw)
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// NOTE: ListWidget's boss is always GUI::Dialog
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((GUI::Dialog *)_boss)->setFocusWidget(this);
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}
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break;
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default:
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break;
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}
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}
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void GroupedListWidget::reflowLayout() {
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Widget::reflowLayout();
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_leftPadding = g_gui.xmlEval()->getVar("Globals.ListWidget.Padding.Left", 0);
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_rightPadding = g_gui.xmlEval()->getVar("Globals.ListWidget.Padding.Right", 0);
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_topPadding = g_gui.xmlEval()->getVar("Globals.ListWidget.Padding.Top", 0);
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_bottomPadding = g_gui.xmlEval()->getVar("Globals.ListWidget.Padding.Bottom", 0);
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_hlLeftPadding = g_gui.xmlEval()->getVar("Globals.ListWidget.hlLeftPadding", 0);
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_hlRightPadding = g_gui.xmlEval()->getVar("Globals.ListWidget.hlRightPadding", 0);
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_scrollBarWidth = g_gui.xmlEval()->getVar("Globals.Scrollbar.Width", 0);
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// HACK: Once we take padding into account, there are times where
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// integer rounding leaves a big chunk of white space in the bottom
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// of the list.
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// We do a rough rounding on the decimal places of Entries Per Page,
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// to add another entry even if it goes a tad over the padding.
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frac_t entriesPerPage = intToFrac(_h - _topPadding - _bottomPadding) / kLineHeight;
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// Our threshold before we add another entry is 0.9375 (0xF000 with FRAC_BITS being 16).
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const frac_t threshold = intToFrac(15) / 16;
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if ((frac_t)(entriesPerPage & FRAC_LO_MASK) >= threshold)
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entriesPerPage += FRAC_ONE;
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_entriesPerPage = fracToInt(entriesPerPage);
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assert(_entriesPerPage > 0);
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if (_scrollBar) {
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_scrollBar->resize(_w - _scrollBarWidth, 0, _scrollBarWidth, _h, false);
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scrollBarRecalc();
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scrollToCurrent();
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}
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}
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void GroupedListWidget::toggleGroup(int groupID) {
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// Shrink group if it is expanded
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if (_groupExpanded[groupID]) {
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_groupExpanded[groupID] = false;
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sortGroups();
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} else {
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// Expand group if it is shrunk
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_groupExpanded[groupID] = true;
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sortGroups();
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}
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}
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void GroupedListWidget::drawWidget() {
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int i, pos, len = _list.size();
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Common::U32String buffer;
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// Draw a thin frame around the list.
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g_gui.theme()->drawWidgetBackground(Common::Rect(_x, _y, _x + _w, _y + _h),
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ThemeEngine::kWidgetBackgroundBorder);
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// Draw the list items
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for (i = 0, pos = _currentPos; i < _entriesPerPage && pos < len; i++, pos++) {
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const int y = _y + _topPadding + kLineHeight * i;
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const int fontHeight = kLineHeight;
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bool isGroupHeader = false;
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ThemeEngine::TextInversionState inverted = ThemeEngine::kTextInversionNone;
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// Draw the selected item inverted, on a highlighted background.
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if (_selectedItem == pos)
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inverted = _inversion;
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Common::Rect r(getEditRect());
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int pad = _leftPadding;
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int rtlPad = (_x + r.left + _leftPadding) - (_x + _hlLeftPadding);
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if (_listIndex[pos] <= kGroupTag) {
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int groupID = -_listIndex[pos] + kGroupTag;
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isGroupHeader = true;
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r.left += g_gui.getStringWidth(Common::U32String(" > "), ThemeEngine::kFontStyleConsole) + _leftPadding;
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// TODO: Placeholder for expansion / contraction icons (triangles).
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if (_groupExpanded[groupID])
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buffer = Common::String(" v ");
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else
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buffer = Common::String(" > ");
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g_gui.theme()->drawText(Common::Rect(_x + _hlLeftPadding, y, _x + r.left + _leftPadding, y + fontHeight - 2),
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buffer, _state, _drawAlign, inverted, _leftPadding, true, ThemeEngine::kFontStyleConsole);
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pad = 0;
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}
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// If in numbering mode & not in RTL based GUI, we first print a number prefix
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if (_numberingMode != kListNumberingOff && g_gui.useRTL() == false) {
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buffer = Common::String::format("%2d. ", (pos + _numberingMode));
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g_gui.theme()->drawText(Common::Rect(_x + _hlLeftPadding, y, _x + r.left + _leftPadding, y + fontHeight - 2),
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buffer, _state, _drawAlign, inverted, _leftPadding, true);
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pad = 0;
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}
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ThemeEngine::FontColor color = ThemeEngine::kFontColorNormal;
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if (!_listColors.empty()) {
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if (_filter.empty() || _selectedItem == -1)
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color = _listColors[pos];
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else
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color = _listColors[_listIndex[pos]];
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}
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Common::Rect r1(_x + r.left, y, _x + r.right, y + fontHeight - 2);
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if (g_gui.useRTL()) {
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if (_scrollBar->isVisible()) {
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r1.translate(_scrollBarWidth, 0);
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}
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if (_numberingMode != kListNumberingOff) {
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r1.translate(-rtlPad, 0);
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}
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}
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if (_selectedItem == pos && _editMode) {
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buffer = _editString;
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color = _editColor;
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adjustOffset();
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} else {
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buffer = _list[pos];
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}
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if (isGroupHeader)
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g_gui.theme()->drawText(r1, buffer, _state,
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_drawAlign, inverted, pad, true, ThemeEngine::kFontStyleBold, color);
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else
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g_gui.theme()->drawText(r1, buffer, _state,
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_drawAlign, inverted, pad, true, ThemeEngine::kFontStyleNormal, color);
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// If in numbering mode & using RTL layout in GUI, we print a number suffix after drawing the text
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if (_numberingMode != kListNumberingOff && g_gui.useRTL()) {
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buffer = Common::String::format(" .%2d", (pos + _numberingMode));
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Common::Rect r2 = r1;
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r2.left = r1.right;
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r2.right = r1.right + rtlPad;
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g_gui.theme()->drawText(r2, buffer, _state, _drawAlign, inverted, _leftPadding, true);
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}
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}
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}
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void GroupedListWidget::scrollToCurrent() {
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// Only do something if the current item is not in our view port
|
||||
if (_selectedItem != -1 && _selectedItem < _currentPos) {
|
||||
// it's above our view
|
||||
_currentPos = _selectedItem;
|
||||
} else if (_selectedItem >= _currentPos + _entriesPerPage ) {
|
||||
// it's below our view
|
||||
_currentPos = _selectedItem - _entriesPerPage + 1;
|
||||
}
|
||||
|
||||
checkBounds();
|
||||
_scrollBar->_currentPos = _currentPos;
|
||||
_scrollBar->recalc();
|
||||
}
|
||||
|
||||
} // End of namespace GUI
|
||||
76
gui/widgets/groupedlist.h
Normal file
76
gui/widgets/groupedlist.h
Normal file
|
|
@ -0,0 +1,76 @@
|
|||
/* ScummVM - Graphic Adventure Engine
|
||||
*
|
||||
* ScummVM is the legal property of its developers, whose names
|
||||
* are too numerous to list here. Please refer to the COPYRIGHT
|
||||
* file distributed with this source distribution.
|
||||
*
|
||||
* 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 2
|
||||
* of the License, or (at your option) any later version.
|
||||
*
|
||||
* 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, write to the Free Software
|
||||
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
|
||||
*
|
||||
*/
|
||||
|
||||
#ifndef GUI_WIDGETS_GROUPEDLIST_H
|
||||
#define GUI_WIDGETS_GROUPEDLIST_H
|
||||
|
||||
#include "gui/widgets/list.h"
|
||||
|
||||
namespace GUI {
|
||||
|
||||
enum {
|
||||
kGroupToggleCmd = 'GPTG'
|
||||
};
|
||||
|
||||
class ListWidget;
|
||||
|
||||
/* GroupedListWidget */
|
||||
class GroupedListWidget : public ListWidget {
|
||||
protected:
|
||||
String _groupingAttribute;
|
||||
Common::HashMap<U32String, int> _groupValueIndex;
|
||||
Common::Array<bool> _groupExpanded;
|
||||
U32StringArray _groupHeaders;
|
||||
U32StringArray _attributeValues;
|
||||
Common::HashMap<int, Common::Array<int>> _itemsInGroup;
|
||||
|
||||
public:
|
||||
GroupedListWidget(Dialog *boss, const String &name, const Common::U32String &tooltip = Common::U32String(), uint32 cmd = 0);
|
||||
GroupedListWidget(Dialog *boss, int x, int y, int w, int h, const Common::U32String &tooltip = Common::U32String(), uint32 cmd = 0);
|
||||
|
||||
void setList(const U32StringArray &list, const ColorList *colors = nullptr, const U32StringArray *attrValues = nullptr);
|
||||
const U32StringArray &getList() const { return _dataList; }
|
||||
|
||||
void append(const String &s, ThemeEngine::FontColor color = ThemeEngine::kFontColorNormal);
|
||||
void groupByAttribute();
|
||||
|
||||
void setSelected(int item);
|
||||
int getSelected() const { return (_selectedItem == -1) ? _selectedItem : _listIndex[_selectedItem]; }
|
||||
|
||||
void handleMouseDown(int x, int y, int button, int clickCount) override;
|
||||
void handleMouseUp(int x, int y, int button, int clickCount) override;
|
||||
void handleMouseWheel(int x, int y, int direction) override;
|
||||
void handleCommand(CommandSender *sender, uint32 cmd, uint32 data) override;
|
||||
|
||||
void reflowLayout() override;
|
||||
|
||||
protected:
|
||||
void sortGroups();
|
||||
void toggleGroup(int groupID);
|
||||
void drawWidget() override;
|
||||
|
||||
void scrollToCurrent();
|
||||
};
|
||||
|
||||
} // End of namespace GUI
|
||||
|
||||
#endif
|
||||
Loading…
Add table
Add a link
Reference in a new issue