src/ui/CategoryDialog.cc

   1 /* Shopper
   2  * Copyright (C) 2008 David Greaves
   3  *
   4  * This software is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public License
   6  * as published by the Free Software Foundation; either version 2.1 of
   7  * the License, or (at your option) any later version.
   8  *
   9  * This software is distributed in the hope that it will be useful, but
  10  * WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with this software; if not, write to the Free Software
  16  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
  17  * 02110-1301 USA
  18  *
  19  */
  20 #define DEBUG_SHOPPER 1
  21 #include "shopper.h"           // automake, i8n, gettext
  22
  23 #include "CategoryDialog.h"
  24 #include "notify.h"
  25
  26 namespace Shopper
  27 {
  28 ////////////////////////////////////////////////////////////////
  29 // Public
  30         CategoryManage::CategoryManage(QWidget * parent, Shopper::List* l) :
  31                 CategoryDialog(parent, l, NULL)
  32         {}
  33
  34 ////////////////////////////////////////////////////////////////
  35 // Private  class CategoryDialog : public QDialog
  36         CategoryDialog::CategoryDialog(QWidget * parent, Shopper::List* l, Shopper::Category* cat) :
  37                 QDialog(parent),
  38                 mylist(l),
  39                 mycat(cat),
  40                 area(NULL)
  41         {
  42                 _ENTER;
  43                 // Buttons
  44                 bbox = new QDialogButtonBox(Qt::Horizontal, this);
  45                 bbox->addButton(tr("Done"), QDialogButtonBox::AcceptRole);
  46                 connect(bbox, SIGNAL(accepted()), this, SLOT(accept()));
  47
  48                 connect(bbox->addButton(tr("Add Category"), QDialogButtonBox::ActionRole),
  49                                 SIGNAL(clicked()),
  50                                 this, SLOT(add_category()));
  51
  52                 // Scroll area with category views
  53                 areaS = new QScrollArea(this);
  54                 areaS->setWidgetResizable(true);
  55
  56                 // moved from update
  57                 area = new QWidget();
  58                 areaL = new QVBoxLayout(area);
  59                 area->setLayout(areaL); // set the layout and take parentage of all children
  60                 areaS->setWidget(area); // add area to the scroller
  61
  62                 // Build them up
  63                 vbox = new QVBoxLayout(this);
  64                 vbox->addWidget(areaS);
  65                 vbox->addWidget(bbox);
  66
  67                 // add the categories to the area.
  68                 update_area();
  69
  70                 // Now connect the List's  category_list_changed() signal to this object's updater
  71                 connect (l, SIGNAL(category_list_changed()),
  72                                  this, SLOT(update_area()));
  73
  74                 // geometric aesthetics
  75 //              int h=get_screen()->get_height();
  76 //              int w=get_screen()->get_width();
  77 //              resize((w*6)/10,h);
  78         }
  79
  80         void CategoryDialog::update_area()
  81         {
  82                 _ENTER;
  83                 // Clean up our old
  84                 QObject *child;
  85                 foreach (child, area->children()){
  86                         if (child->isWidgetType()) {
  87                                 DEBUG("Kill a child " << child->metaObject()->className()  );
  88                                 child->deleteLater();
  89                         }
  90                 }
  91
  92                 // lots of these
  93                 CatView *cv;
  94                 int pos;
  95                 Shopper::List::pCategoryIter begin =mylist->categoriesI(),
  96                         end = mylist->categoriesEnd();
  97                 Shopper::List::pCategoryIter catI;
  98                 for(catI = begin, pos=0; catI != end; ++catI,++pos)
  99                 {
 100                         cv = new CatView(**catI, *mylist);
 101                         areaL->addWidget(cv);   // add CatView to the layout
 102                         connect(cv, SIGNAL(move_up()),
 103                                         this, SLOT(move_up()));
 104                         connect(cv, SIGNAL(move_down()),
 105                                         this, SLOT(move_down()));
 106                         if (catI == begin) cv->set_pos(pos,-1); // size of -1 won't be reached
 107                 }
 108                 cv->set_pos(pos-1,pos-1); // Now we know the end
 109
 110                 area->show();
 111         }
 112
 113         void CategoryDialog::add_category()
 114         {
 115                 // Create a new category
 116                 mycat = new Shopper::Category("New Category");
 117                 mylist->add(*mycat);
 118                 // FIXME: set the sw->scroll and category edit focus here
 119         }
 120 #define DOWN_SCREEN 1
 121 #define UP_SCREEN -1
 122         void CategoryDialog::move_up()
 123         {
 124                 _ENTER;
 125                 CatView *src = static_cast<CatView*>(this->sender());
 126                 move(src, UP_SCREEN);
 127         }
 128         void CategoryDialog::move_down()
 129         {
 130                 _ENTER;
 131                 CatView *src = static_cast<CatView*>(this->sender());
 132                 move(src, DOWN_SCREEN);
 133         }
 134         void CategoryDialog::move(CatView* src, int direction)
 135         {
 136                 _ENTER;
 137                 int pos = areaL->indexOf(src);
 138                 int max = areaL->count()-1;
 139                 DEBUG("src at pos=" << pos << "/"<<max<<" direction=" << direction);
 140
 141                 if (direction == DOWN_SCREEN and pos == max) return;    // moving 'down' the screen
 142                 if (direction == UP_SCREEN   and pos == 0)  return;
 143
 144                 QLayoutItem *li = areaL->itemAt(pos+direction);
 145                 if (li == 0) {
 146                         DEBUG("No item found at pos=" << pos << " direction=" << direction);
 147                         return;
 148                 }
 149                 CatView *that = static_cast<CatView*>(areaL->itemAt(pos+direction)->widget());
 150                 Q_ASSERT(that != 0);
 151
 152                 areaL->removeWidget(src);
 153                 areaL->insertWidget(pos+direction, src);
 154                 mylist->swap_categories(src->get_cat(), that->get_cat());
 155                 src->set_pos(pos+direction,max);
 156                 that->set_pos(pos,max);
 157                 area->show();
 158         }
 159
 160 ////////////////////////////////////////////////////////////////
 161 ////////////////////////////////////////////////////////////////
 162 ////////////////////////////////////////////////////////////////
 163
 164 // The widget shows the state of a category
 165 // it can move up or down and edits the relevant category.
 166         CatView::CatView(Category &cat, List &lst, QWidget *parent) :
 167                 QWidget(parent),
 168                 mycat(&cat),
 169                 mylist(&lst)
 170         {
 171                 _ENTER;
 172                 // UI
 173                 name = new LabelEntry(cat.get_name(), this);
 174                 up_b = new QPushButton(style()->standardIcon(QStyle::SP_ArrowUp), "", this);
 175                 down_b = new QPushButton(style()->standardIcon(QStyle::SP_ArrowDown), "", this);
 176                 QPushButton *del_b = new QPushButton(style()->standardIcon(QStyle::SP_TrashIcon), "", this);
 177                 QHBoxLayout *box = new QHBoxLayout(this);
 178
 179                 box->addWidget(del_b);
 180                 box->addWidget(name);
 181                 box->addWidget(up_b);
 182                 box->addWidget(down_b);
 183                 setLayout(box);
 184
 185                 // Respond to changing the label
 186                 connect(name, SIGNAL(changed()),
 187                                 this, SLOT(name_changed()));
 188                 // Respond to del
 189                 connect(del_b, SIGNAL(clicked()),
 190                                 this, SLOT(delete_category()));
 191                 // Respond to up
 192                 connect(up_b, SIGNAL(clicked()),
 193                                 this, SIGNAL(move_up()));
 194                 // Respond to down
 195                 connect(down_b, SIGNAL(clicked()),
 196                                 this, SIGNAL(move_down()));
 197
 198                 // Make the container visible according to visibility logic
 199                 DEBUG("CatView created for" <<cat.get_name());
 200         }
 201
 202         void CatView::delete_category()
 203         {
 204                 DEBUG("Delete Category");
 205                 if (mylist->is_category_active(*mycat)) {
 206                         notify->showMessage("Shopper: Info", "Can't delete current category");
 207                         return;
 208                 }
 209
 210                 // Message
 211                 QString l;
 212                 int s  = mycat->get_size();
 213                 if (s > 0) {
 214                         l =  "Category '" + mycat->get_name()
 215                                 + "' has " + QString(s)
 216                                 + " items. Delete them all? ";
 217                 } else {
 218                         l = "Delete empty category '" + mycat->get_name() + "'?";
 219                 }
 220
 221                 QDialog dia(this);
 222                 QVBoxLayout vbox(&dia);
 223                 QDialogButtonBox bbox(QDialogButtonBox::Yes | QDialogButtonBox::No, Qt::Horizontal, &dia);
 224                 connect(&bbox, SIGNAL(accepted()), &dia, SLOT(accept()));
 225                 connect(&bbox, SIGNAL(rejected()), &dia, SLOT(reject()));
 226                 vbox.addWidget(new QLabel("Are you sure?", &dia));
 227                 vbox.addWidget(new QLabel(l, &dia));
 228                 vbox.addWidget(&bbox);
 229                 dia.setLayout(&vbox);
 230
 231                 if (dia.exec() == QDialog::Accepted)
 232                 {
 233 //FIX                   Hildon::Banner::show_information(*this, "Deleted category " + mycat->get_name());
 234                         mylist->rm(*mycat);
 235                 }
 236         }
 237
 238         void CatView::name_changed()
 239         {
 240                 mycat->set_name(name->getText());
 241         }
 242         void CatView::set_pos(int pos, int size)
 243         {
 244                 _ENTER;
 245                 if (pos == 0) up_b->hide(); else up_b->show();
 246                 if (pos == size) down_b->hide(); else down_b->show();
 247                 show();
 248         }
 249
 250         Category * CatView::get_cat()
 251         {
 252                 return mycat;
 253         }
 254 }