379 lines
9.3 KiB
C++
379 lines
9.3 KiB
C++
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#include "textlist.h"
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#include "tw/colors.h"
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#include "tw/event.h"
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#include "tw/scrollbar.h"
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#include "tw/keycodes.h"
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#include <vector>
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#include <map>
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#include <string>
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using namespace std;
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using namespace TwConsts;
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namespace
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{
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const int rowHeight = 20; // 15
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};
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//==============================================================================
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class TTextList::Data
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{
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public:
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Data(TWidget *w) : m_w(w), m_selAction(0), m_dblClickAction(0), m_scrollbar(new TScrollbar(w)), m_yoffset(0)
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{
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}
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~Data()
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{
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if (m_selAction)
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delete m_selAction;
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if (m_dblClickAction)
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delete m_dblClickAction;
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std::map<string, TTextListItem *>::iterator it = m_items.begin();
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for (; it != m_items.end(); ++it)
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delete it->second;
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}
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int posToItem(const TPoint &p);
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void updateScrollBarStatus()
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{
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if (!m_scrollbar)
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return;
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unsigned int ly = m_w->getLy();
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if ((m_items.size() * rowHeight) > ly) {
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m_scrollbar->setValue(m_yoffset, 0, (m_items.size() + 1) * rowHeight - ly, ly);
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m_scrollbar->show(); //m_scrollbar->setValue(m_yoffset,0, yrange-ly, ly);
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} else {
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m_yoffset = 0;
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m_scrollbar->hide(); //m_scrollbar->setValue(0,0, 0, 0);
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}
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m_scrollbar->invalidate();
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}
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TWidget *m_w;
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std::map<string, TTextListItem *> m_items;
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vector<string> m_selectedItems;
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TGenericTextListAction *m_selAction;
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TGenericTextListAction *m_dblClickAction;
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TScrollbar *m_scrollbar;
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int m_yoffset;
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};
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//------------------------------------------------------------------------------
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int TTextList::Data::posToItem(const TPoint &p)
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{
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/* TDimension d = getSize();
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int i = getItemCount()-1;
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10 +
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for(int y=10; y<d.ly && i>=0; y+=rowHeight, --i)
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*/
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int y = m_w->getSize().ly - p.y + m_yoffset;
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int item = y / rowHeight;
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return item;
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}
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//==============================================================================
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TTextListItem::TTextListItem(const string &id, const string &caption)
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: m_id(id), m_caption(caption)
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{
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}
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//==============================================================================
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TTextList::TTextList(TWidget *parent, string name)
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: TWidget(parent, name), m_data(0)
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{
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m_data = new Data(this);
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m_data->m_scrollbar->setAction(new TScrollbarAction<TTextList>(this, &TTextList::scrollTo));
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}
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//------------------------------------------------------------------------------
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TTextList::~TTextList()
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{
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delete m_data;
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}
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//------------------------------------------------------------------------------
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void TTextList::addItem(TTextListItem *item)
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{
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std::map<string, TTextListItem *>::iterator it = m_data->m_items.find(item->getId());
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if (it == m_data->m_items.end()) {
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m_data->m_items.insert(make_pair(item->getId(), item));
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m_data->updateScrollBarStatus();
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}
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}
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//------------------------------------------------------------------------------
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void TTextList::removeItem(const string &itemId)
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{
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std::map<string, TTextListItem *>::iterator it = m_data->m_items.find(itemId);
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if (it != m_data->m_items.end()) {
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m_data->m_items.erase(it);
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m_data->updateScrollBarStatus();
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}
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}
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//------------------------------------------------------------------------------
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void TTextList::clearAll()
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{
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m_data->m_items.clear();
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m_data->m_selectedItems.clear();
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invalidate();
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m_data->updateScrollBarStatus();
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}
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//------------------------------------------------------------------------------
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int TTextList::getItemCount() const
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{
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return m_data->m_items.size();
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}
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//------------------------------------------------------------------------------
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TTextListItem *TTextList::getItem(int i) const
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{
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if (i >= 0 && i < (int)m_data->m_items.size()) {
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std::map<string, TTextListItem *>::iterator it = m_data->m_items.begin();
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advance(it, i);
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return it->second;
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}
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return 0;
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}
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//------------------------------------------------------------------------------
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int TTextList::itemToIndex(const string &itemId)
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{
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std::map<string, TTextListItem *>::iterator it = m_data->m_items.find(itemId);
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if (it == m_data->m_items.end())
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return -1;
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else
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return distance(m_data->m_items.begin(), it);
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}
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//------------------------------------------------------------------------------
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int TTextList::getSelectedItemCount() const
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{
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return m_data->m_selectedItems.size();
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}
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//------------------------------------------------------------------------------
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TTextListItem *TTextList::getSelectedItem(int i) const
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{
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if (i < 0 || (int)m_data->m_selectedItems.size() <= i)
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return 0;
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string itemId = m_data->m_selectedItems[i];
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std::map<string, TTextListItem *>::iterator it = m_data->m_items.find(itemId);
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if (it != m_data->m_items.end())
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return it->second;
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else
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return 0;
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}
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//------------------------------------------------------------------------------
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string TTextList::getSelectedItemId(int i) const
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{
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if ((int)m_data->m_selectedItems.size() <= i)
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return "";
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assert(i >= 0 && i < (int)m_data->m_selectedItems.size());
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return m_data->m_selectedItems[i];
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}
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//------------------------------------------------------------------------------
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void TTextList::select(int i, bool on)
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{
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assert(i >= 0 && i < (int)m_data->m_items.size());
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std::map<string, TTextListItem *>::iterator it = m_data->m_items.begin();
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advance(it, i);
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string id = it->first;
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vector<string>::iterator it2 =
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find(m_data->m_selectedItems.begin(), m_data->m_selectedItems.end(), id);
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if (on) {
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if (it2 == m_data->m_selectedItems.end())
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m_data->m_selectedItems.push_back(id);
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} else {
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if (it2 != m_data->m_selectedItems.end())
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m_data->m_selectedItems.erase(it2);
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}
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if (m_data->m_selAction)
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m_data->m_selAction->sendCommand(i);
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invalidate();
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}
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//------------------------------------------------------------------------------
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void TTextList::select(const string &itemId, bool on)
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{
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std::map<string, TTextListItem *>::iterator it =
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m_data->m_items.find(itemId);
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if (it != m_data->m_items.end()) {
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int i = distance(m_data->m_items.begin(), it);
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select(i, on);
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}
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}
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//------------------------------------------------------------------------------
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void TTextList::unselectAll()
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{
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m_data->m_selectedItems.clear();
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invalidate();
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}
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//------------------------------------------------------------------------------
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bool TTextList::isSelected(int i) const
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{
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assert(i >= 0 && i < (int)m_data->m_items.size());
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std::map<string, TTextListItem *>::iterator it = m_data->m_items.begin();
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advance(it, i);
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string id = it->first;
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vector<string>::iterator it2 =
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find(m_data->m_selectedItems.begin(), m_data->m_selectedItems.end(), id);
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return it2 != m_data->m_selectedItems.end();
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}
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//------------------------------------------------------------------------------
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bool TTextList::isSelected(const string &item) const
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{
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assert(false);
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return false;
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}
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//------------------------------------------------------------------------------
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void TTextList::scrollTo(int y)
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{
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y = (y / rowHeight) * rowHeight;
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if (m_data->m_yoffset == y)
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return;
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m_data->m_yoffset = y;
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m_data->updateScrollBarStatus();
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invalidate();
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}
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//------------------------------------------------------------------------------
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void TTextList::draw()
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{
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drawRect(TRect(TPoint(0, 0), getSize()));
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TDimension d = getSize();
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int y = d.ly - 1 - rowHeight;
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for (int i = m_data->m_yoffset / rowHeight; i < getItemCount() && y >= 0; ++i, y -= rowHeight) {
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if (isSelected(i)) {
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setColor(Blue, 2);
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fillRect(2, y - 2, getSize().lx - 1 - 2, y + rowHeight - 1 - 2);
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}
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setColor(Black);
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drawText(TPoint(10, y), getItem(i)->getCaption());
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}
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}
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//------------------------------------------------------------------------------
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void TTextList::setSelAction(TGenericTextListAction *action)
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{
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if (m_data->m_selAction)
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delete m_data->m_selAction;
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m_data->m_selAction = action;
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}
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//------------------------------------------------------------------------------
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void TTextList::setDblClickAction(TGenericTextListAction *action)
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{
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if (m_data->m_dblClickAction)
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delete m_data->m_dblClickAction;
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m_data->m_dblClickAction = action;
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}
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//------------------------------------------------------------------------------
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void TTextList::configureNotify(const TDimension &d)
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{
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m_data->m_scrollbar->setGeometry(d.lx - 20, 1, d.lx - 2, d.ly - 2);
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m_data->updateScrollBarStatus();
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}
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//------------------------------------------------------------------------------
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void TTextList::leftButtonDown(const TMouseEvent &e)
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{
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int i = m_data->posToItem(e.m_pos);
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if (i >= 0 && i < (int)m_data->m_items.size()) {
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if (!e.isShiftPressed())
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unselectAll();
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select(i, !isSelected(i));
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}
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}
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//------------------------------------------------------------------------------
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void TTextList::leftButtonDoubleClick(const TMouseEvent &e)
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{
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int i = m_data->posToItem(e.m_pos);
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if (i >= 0 && i < (int)m_data->m_items.size()) {
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if (m_data->m_dblClickAction)
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m_data->m_dblClickAction->sendCommand(i);
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}
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}
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//------------------------------------------------------------------------------
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void TTextList::keyDown(int key, unsigned long mod, const TPoint &pos)
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{
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if ((key == TK_UpArrow) || (key == TK_DownArrow)) {
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int lastSelected = -1;
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for (int i = 0; i < getItemCount(); ++i)
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if (isSelected(i))
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lastSelected = i;
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if (lastSelected == -1)
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return;
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int newSelected = (key == TK_UpArrow) ? lastSelected - 1 : lastSelected + 1;
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if (newSelected >= 0 && newSelected < (int)m_data->m_items.size()) {
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// if (!e.isShiftPressed())
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unselectAll();
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select(newSelected, !isSelected(newSelected));
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}
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} else
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TWidget::keyDown(key, mod, pos);
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}
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