Shamusworld >> Repos - architektonas/blob - src/layerwidget.cpp

   1 // layerwidget.cpp: Layer add/remove/use widget
   2 //
   3 // Part of the Architektonas Project
   4 // (C) 2011 Underground Software
   5 // See the README and GPLv3 files for licensing and warranty information
   6 //
   7 // JLH = James Hammons <jlhamm@acm.org>
   8 //
   9 // WHO  WHEN        WHAT
  10 // ---  ----------  ------------------------------------------------------------
  11 // JLH  07/11/2013  Created this file
  12 //
  13
  14 #include "layerwidget.h"
  15 #include "global.h"
  16 #include "layeritemwidget.h"
  17
  18
  19 LayerWidget::LayerWidget(void): QWidget(),
  20         addLayer(new QToolButton), removeLayer(new QToolButton),
  21         editLayer(new QToolButton), layerUp(new QToolButton),
  22         layerDown(new QToolButton), list(new QListWidget)
  23 {
  24         LayerItemWidget * liw = new LayerItemWidget("Background");
  25         QListWidgetItem * qlwi = new QListWidgetItem(list);
  26         list->setItemWidget(qlwi, liw);
  27
  28 //      QToolButton * pb1 = new QToolButton;
  29 //      QToolButton * pb2 = new QToolButton;
  30 //      QToolButton * pb3 = new QToolButton;
  31 //      QToolButton * pb4 = new QToolButton;
  32 //      QToolButton * pb5 = new QToolButton;
  33
  34         addLayer->setIcon(QIcon(":/res/layer-add.png"));
  35         removeLayer->setIcon(QIcon(":/res/layer-delete.png"));
  36         editLayer->setIcon(QIcon(":/res/layer-edit.png"));
  37         layerUp->setIcon(QIcon(":/res/layer-up.png"));
  38         layerDown->setIcon(QIcon(":/res/layer-down.png"));
  39
  40         addLayer->setToolTip(tr("Add layer"));
  41         removeLayer->setToolTip(tr("Remove layer"));
  42         editLayer->setToolTip(tr("Edit layer"));
  43         layerUp->setToolTip(tr("Move layer up"));
  44         layerDown->setToolTip(tr("Move layer down"));
  45
  46         QHBoxLayout * hbox1 = new QHBoxLayout;
  47         hbox1->addWidget(addLayer);
  48         hbox1->addWidget(removeLayer);
  49         hbox1->addWidget(editLayer);
  50         hbox1->addWidget(layerUp);
  51         hbox1->addWidget(layerDown);
  52         hbox1->addStretch();
  53
  54         QVBoxLayout * mainLayout = new QVBoxLayout;
  55         mainLayout->addWidget(list);
  56         mainLayout->addLayout(hbox1);
  57
  58         setLayout(mainLayout);
  59
  60         connect(list, SIGNAL(currentRowChanged(int)), this, SLOT(HandleLayerSelected(int)));
  61         connect(addLayer, SIGNAL(clicked()), this, SLOT(AddLayer()));
  62         connect(removeLayer, SIGNAL(clicked()), this, SLOT(DeleteLayer()));
  63         connect(editLayer, SIGNAL(clicked()), this, SLOT(EditLayer()));
  64         connect(layerUp, SIGNAL(clicked()), this, SLOT(MoveLayerUp()));
  65         connect(layerDown, SIGNAL(clicked()), this, SLOT(MoveLayerDown()));
  66
  67         list->setCurrentRow(0);
  68 }
  69
  70
  71 LayerWidget::~LayerWidget()
  72 {
  73 }
  74
  75
  76 void LayerWidget::HandleLayerSelected(int currentRow)
  77 {
  78 //printf("LayerWidget::HandleLayerSelected(): currentRow = %i\n", currentRow);
  79 //      emit(LayerSelected(currentRow));
  80
  81         QListWidgetItem * qlwi = list->item(currentRow);
  82         LayerItemWidget * li = (LayerItemWidget *)list->itemWidget(qlwi);
  83         Global::activeLayer = currentRow;
  84         Global::layerIsLocked = li->editibility->isChecked();
  85
  86         // Set button states to sane values
  87         SetButtonStates();
  88 }
  89
  90
  91 void LayerWidget::AddLayer(void)
  92 {
  93         int count = list->count();
  94         QString text = QString("Layer #%1").arg(count);
  95         LayerItemWidget * liw = new LayerItemWidget(text);
  96         QListWidgetItem * qlwi = new QListWidgetItem();
  97         list->insertItem(0, qlwi);
  98         list->setItemWidget(qlwi, liw);
  99
 100         SetButtonStates();
 101 }
 102
 103
 104 void LayerWidget::DeleteLayer(void)
 105 {
 106         int numItems = list->count();
 107
 108         if (numItems == 1)
 109                 return;
 110
 111         QListWidgetItem * qlwi = list->currentItem();
 112         list->removeItemWidget(qlwi);
 113         delete qlwi;
 114
 115         SetButtonStates();
 116
 117         // N.B.: Also, we need to delete the layer in the Drawing as well!
 118 }
 119
 120
 121 void LayerWidget::EditLayer(void)
 122 {
 123         // Get the LayerItemWidget so we can edit it (its name, anyway)...
 124         QListWidgetItem * qlwi = list->currentItem();
 125         LayerItemWidget * li = (LayerItemWidget *)list->itemWidget(qlwi);
 126         QString s = li->name->text();
 127
 128         bool ok;
 129         QString result = QInputDialog::getText(this, tr("Edit Layer Name"), tr("Layer Name:"), QLineEdit::Normal, s, &ok);
 130
 131         if (ok && !result.isEmpty())
 132                 li->name->setText(result);
 133 }
 134
 135
 136 void LayerWidget::MoveLayerUp(void)
 137 {
 138         // Get information out of the LayerItemWidget (& get it from the list!)
 139         int currentRow = list->currentRow();
 140         QListWidgetItem * qlwi = list->currentItem();
 141         LayerItemWidget * li = (LayerItemWidget *)list->itemWidget(qlwi);
 142         QString s = li->name->text();
 143         bool visible = li->visibility->isChecked();
 144         bool editible = li->editibility->isChecked();
 145
 146         // We have to make a new LayerItemWidget because it destroys the old one!
 147         list->takeItem(currentRow);
 148         list->insertItem(currentRow - 1, qlwi);
 149         li = new LayerItemWidget(s, visible, editible);
 150         list->setItemWidget(qlwi, li);
 151         list->setCurrentItem(qlwi);
 152 }
 153
 154
 155 void LayerWidget::MoveLayerDown(void)
 156 {
 157         // Get information out of the LayerItemWidget (& get it from the list!)
 158         int currentRow = list->currentRow();
 159         QListWidgetItem * qlwi = list->currentItem();
 160         LayerItemWidget * li = (LayerItemWidget *)list->itemWidget(qlwi);
 161         QString s = li->name->text();
 162         bool visible = li->visibility->isChecked();
 163         bool editible = li->editibility->isChecked();
 164
 165         // We have to make a new LayerItemWidget because it destroys the old one!
 166         list->takeItem(currentRow);
 167         list->insertItem(currentRow + 1, qlwi);
 168         li = new LayerItemWidget(s, visible, editible);
 169         list->setItemWidget(qlwi, li);
 170         list->setCurrentItem(qlwi);
 171 }
 172
 173
 174 //
 175 // Set button states in this widget to sane values
 176 //
 177 void LayerWidget::SetButtonStates(void)
 178 {
 179         int numItems = list->count();
 180         int currentRow = list->currentRow();
 181
 182         layerDown->setEnabled(currentRow == (numItems - 1) ? false : true);
 183         layerUp->setEnabled(currentRow == 0 ? false : true);
 184         removeLayer->setEnabled(numItems == 1 ? false : true);
 185 }
 186