1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195
|
package MoveCommand;
use strict;
use warnings;
use QtCore4;
use QtGui4;
use DiagramItem;
# [0]
use QtCore4::isa qw( Qt::UndoCommand );
use constant { Id => 1234 };
sub id() { return Id; }
sub myDiagramItem() {
return this->{myDiagramItem};
}
sub myOldPos() {
return this->{myOldPos};
}
sub newPos() {
return this->{newPos};
}
# [0]
sub NEW
{
my ($class, $diagramItem, $oldPos, $parent) = @_;
$class->SUPER::NEW($parent);
this->{myDiagramItem} = $diagramItem;
this->{newPos} = $diagramItem->pos();
this->{myOldPos} = $oldPos;
}
# [0]
# [1]
sub mergeWith
{
my ($command) = @_;
my $moveCommand = $command;
my $item = $moveCommand->myDiagramItem;
if (myDiagramItem != $item) {
return 0;
}
this->{newPos} = $item->pos();
setText(Qt::String( Qt::Object::tr('Move %1') )
->arg(CommandsCommon::createCommandString(myDiagramItem, newPos)));
return 1;
}
# [1]
# [2]
sub undo
{
myDiagramItem->setPos(myOldPos);
myDiagramItem->scene()->update();
setText(Qt::String( Qt::Object::tr('Move %1') )
->arg(CommandsCommon::createCommandString(myDiagramItem, newPos)));
}
# [2]
# [3]
sub redo
{
myDiagramItem->setPos(newPos);
setText(Qt::String( Qt::Object::tr('Move %1') )
->arg(CommandsCommon::createCommandString(myDiagramItem, newPos)));
}
# [3]
package DeleteCommand;
# [1]
use strict;
use warnings;
use QtCore4;
use QtGui4;
use DiagramItem;
use QtCore4::isa qw( Qt::UndoCommand );
sub myDiagramItem() {
return this->{myDiagramItem};
}
sub myGraphicsScene() {
return this->{myGraphicsScene};
}
# [1]
# [4]
sub NEW
{
my ($class, $scene, $parent) = @_;
$class->SUPER::NEW($parent);
this->{myGraphicsScene} = $scene;
this->{list} = myGraphicsScene->selectedItems();
list()->[0]->setSelected(0);
this->{myDiagramItem} = list()->[0];
setText(Qt::String( Qt::Object::tr('Delete %1') )
->arg(CommandsCommon::createCommandString(myDiagramItem, myDiagramItem->pos())));
}
# [4]
# [5]
sub undo
{
myGraphicsScene->addItem(myDiagramItem);
myGraphicsScene->update();
}
# [5]
# [6]
sub redo
{
myGraphicsScene->removeItem(myDiagramItem);
}
# [6]
package AddCommand;
use strict;
use warnings;
use QtCore4;
use QtGui4;
use DiagramItem;
use QtCore4::isa qw( Qt::UndoCommand );
sub myDiagramItem() {
return this->{myDiagramItem};
}
sub myGraphicsScene() {
return this->{myGraphicsScene};
}
sub initialPosition() {
return this->{initialPosition};
}
# [2]
# [7]
my $itemCount = 0;
sub NEW
{
my ($class, $addType, $scene, $parent) = @_;
$class->SUPER::NEW($parent);
this->{myGraphicsScene} = $scene;
this->{myDiagramItem} = DiagramItem($addType);
this->{initialPosition} = Qt::PointF(($itemCount * 15) % int($scene->width()),
($itemCount * 15) % int($scene->height()));
$scene->update();
++$itemCount;
setText(Qt::String( Qt::Object::tr('Add %1') )
->arg(CommandsCommon::createCommandString(myDiagramItem, myDiagramItem->pos())));
}
# [7]
# [8]
sub undo
{
myGraphicsScene->removeItem(myDiagramItem);
myGraphicsScene->update();
}
# [8]
# [9]
sub redo
{
myGraphicsScene->addItem(myDiagramItem);
myDiagramItem->setPos(initialPosition);
myGraphicsScene->clearSelection();
myGraphicsScene->update();
}
# [9]
package CommandsCommon;
use strict;
use warnings;
sub createCommandString
{
my ($item, $pos) = @_;
return Qt::String( Qt::Object::tr('%1 at (%2, %3)') )
->arg($item->diagramType() == DiagramItem::Box ? 'Box' : 'Triangle')
->arg($pos->x())->arg( $pos->y() );
}
1;
|