Differential D1346 Diff 9872 source/gui/CListMultiple.cpp

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source/gui/CListMultiple.cpp

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				/* Copyright (C) 2019 Wildfire Games.
				* This file is part of 0 A.D.
				*
				* 0 A.D. 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.
				*
				* 0 A.D. 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 0 A.D. If not, see <http://www.gnu.org/licenses/>.
				*/

				#include "precompiled.h"

				#include "CListMultiple.h"

				#include "gui/CGUI.h"
				#include "gui/CGUIColor.h"
				#include "gui/CGUIScrollBarVertical.h"
				#include "lib/external_libraries/libsdl.h"
				#include "lib/timer.h"
				#include "ps/Globals.h"

				CListMultiple::CListMultiple(CGUI& pGUI)
				: CList(pGUI), IGUIObject(pGUI),
				m_AddMultiSelection(false), m_IsMultiSelecting(false)
				{
				AddSetting<CIntList>("selected");
				SetSetting<CIntList>("selected", CIntList(), true);
				}

				CListMultiple::~CListMultiple()
				{
				}

				void CListMultiple::SelectionControl(int &select)
				{
				m_IsMultiSelecting = g_keys[SDLK_LSHIFT] \|\| g_keys[SDLK_RSHIFT];
				m_AddMultiSelection = g_keys[SDLK_LCTRL] \|\| g_keys[SDLK_RCTRL];

				// Add current item to selection
				if (m_AddMultiSelection)
				{
				CIntList sel = GetSetting<CIntList>("selected");
				m_MultiSelectionFromItem = select;
				m_SelectedItems = sel.m_Items;
				bool add = true;
				size_t pos = -1;
				for (size_t it = 0; it < m_SelectedItems.size(); ++it)
				if (m_SelectedItems.at(it) == select)
				{
				add = false;
				pos = it;
				break;
				}
				if (add)
				m_SelectedItems.push_back(select);
				else
				{
				m_SelectedItems.erase(m_SelectedItems.begin() + pos);
				// Select last item in multiselection
				if (m_SelectedItems.size() == 1)
				select = m_SelectedItems.at(0);
				}

				sel.m_Items = m_SelectedItems;
				SetSetting<CIntList>("selected", sel, true);
				}
				// Select everything from last clicked item to current
				else if (m_IsMultiSelecting)
				{
				if (m_MultiSelectionFromItem == select)
				return;

				CIntList sel = GetSetting<CIntList>("selected");
				m_SelectedItems = sel.m_Items;

				m_SelectedItems.clear();
				for (size_t itemId = m_MultiSelectionFromItem; itemId < select + 1; ++itemId)
				m_SelectedItems.push_back(itemId);

				sel.m_Items = m_SelectedItems;
				SetSetting<CIntList>( "selected", sel, true);
				}
				// Clear multi selection
				else
				{
				CIntList sel = GetSetting<CIntList>("selected");
				m_SelectedItems = sel.m_Items;
				m_SelectedItems.clear();
				m_SelectedItems.push_back(select);
				sel.m_Items = m_SelectedItems;
				m_MultiSelectionFromItem = select;
				SetSetting<CIntList>("selected", sel, true);
				}
				}

				bool CListMultiple::IsEnabledDoubleClick()
				{
				return !m_IsMultiSelecting && !m_AddMultiSelection;
				}

				void CListMultiple::DrawSelectedItems(const int selected, const bool scrollbar, const float scroll, CGUISpriteInstance& sprite_selectarea, const int cell_id, const float bz, CRect& rect)
				{
				CIntList sel = GetSetting<CIntList>("selected");
				m_SelectedItems = sel.m_Items;

				// Draw multi selection
				if (!m_SelectedItems.empty())
				for (size_t selection = 0; selection < m_SelectedItems.size(); ++selection)
				DrawSelection(m_SelectedItems[selection], scrollbar, scroll, sprite_selectarea, cell_id, bz, rect);
				}

				int CListMultiple::GetLastSelected()
				{
				CIntList sel = GetSetting<CIntList>("selected");
				if (sel.m_Items.size() == 0)
				return -1;
				return sel.m_Items.at(sel.m_Items.size()-1);
				}