1 /***
2 
3     Olive - Non-Linear Video Editor
4     Copyright (C) 2019  Olive Team
5 
6     This program is free software: you can redistribute it and/or modify
7     it under the terms of the GNU General Public License as published by
8     the Free Software Foundation, either version 3 of the License, or
9     (at your option) any later version.
10 
11     This program is distributed in the hope that it will be useful,
12     but WITHOUT ANY WARRANTY; without even the implied warranty of
13     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14     GNU General Public License for more details.
15 
16     You should have received a copy of the GNU General Public License
17     along with this program.  If not, see <http://www.gnu.org/licenses/>.
18 
19 ***/
20 
21 #include "sourceiconview.h"
22 
23 #include <QMimeData>
24 #include <QImage>
25 
26 #include "panels/project.h"
27 #include "project/media.h"
28 #include "project/sourcescommon.h"
29 #include "global/debug.h"
30 #include "global/math.h"
31 
SourceIconView(SourcesCommon & commons)32 SourceIconView::SourceIconView(SourcesCommon &commons) :
33   commons_(commons)
34 {
35   setMovement(QListView::Free);
36   setSelectionMode(QAbstractItemView::ExtendedSelection);
37   setResizeMode(QListView::Adjust);
38   setContextMenuPolicy(Qt::CustomContextMenu);
39   setItemDelegate(&delegate_);
40   connect(this, SIGNAL(clicked(const QModelIndex&)), this, SLOT(item_click(const QModelIndex&)));
41   connect(this, SIGNAL(customContextMenuRequested(const QPoint&)), this, SLOT(show_context_menu()));
42 }
43 
show_context_menu()44 void SourceIconView::show_context_menu() {
45   commons_.show_context_menu(this, selectedIndexes());
46 }
47 
item_click(const QModelIndex & index)48 void SourceIconView::item_click(const QModelIndex& index) {
49   if (selectedIndexes().size() == 1 && index.column() == 0) {
50     commons_.item_click(project_parent->item_to_media(index), index);
51   }
52 }
53 
mousePressEvent(QMouseEvent * event)54 void SourceIconView::mousePressEvent(QMouseEvent* event) {
55   commons_.mousePressEvent(event);
56   if (!indexAt(event->pos()).isValid()) selectionModel()->clear();
57   QListView::mousePressEvent(event);
58 }
59 
dragEnterEvent(QDragEnterEvent * event)60 void SourceIconView::dragEnterEvent(QDragEnterEvent *event) {
61   if (event->mimeData()->hasUrls()) {
62     event->acceptProposedAction();
63   } else {
64     QListView::dragEnterEvent(event);
65   }
66 }
67 
dragMoveEvent(QDragMoveEvent * event)68 void SourceIconView::dragMoveEvent(QDragMoveEvent *event) {
69   if (event->mimeData()->hasUrls()) {
70     event->acceptProposedAction();
71   } else {
72     QListView::dragMoveEvent(event);
73   }
74 }
75 
dropEvent(QDropEvent * event)76 void SourceIconView::dropEvent(QDropEvent* event) {
77   QModelIndex drop_item = indexAt(event->pos());
78   if (!drop_item.isValid()) drop_item = rootIndex();
79   commons_.dropEvent(this, event, drop_item, selectedIndexes());
80 }
81 
mouseDoubleClickEvent(QMouseEvent *)82 void SourceIconView::mouseDoubleClickEvent(QMouseEvent *) {
83   if (selectedIndexes().size() == 1) {
84     Media* m = project_parent->item_to_media(selectedIndexes().at(0));
85     if (m->get_type() == MEDIA_TYPE_FOLDER) {
86       setRootIndex(selectedIndexes().at(0));
87       emit changed_root();
88       return;
89     }
90   }
91 
92   // Double click was not a folder, so we perform the default behavior (sending the double click to SourcesCommon)
93   commons_.mouseDoubleClickEvent(selectedIndexes());
94 }
95 
SourceIconDelegate(QObject * parent)96 SourceIconDelegate::SourceIconDelegate(QObject *parent) :
97   QStyledItemDelegate (parent)
98 {
99 }
100 
sizeHint(const QStyleOptionViewItem & option,const QModelIndex &) const101 QSize SourceIconDelegate::sizeHint(const QStyleOptionViewItem &option, const QModelIndex &) const
102 {
103   if (option.decorationPosition == QStyleOptionViewItem::Top) { // Icon Mode
104 
105     return QSize(256, 256);
106 
107   } else {
108 
109     return QSize(option.decorationSize.height(), option.decorationSize.height());
110 
111   }
112 }
113 
paint(QPainter * painter,const QStyleOptionViewItem & option,const QModelIndex & index) const114 void SourceIconDelegate::paint(QPainter *painter, const QStyleOptionViewItem &option, const QModelIndex &index) const
115 {
116   QFontMetrics fm = painter->fontMetrics();
117   QRect img_rect = option.rect;
118 
119   if (option.decorationPosition == QStyleOptionViewItem::Top) { // Icon Mode
120 
121     // Draw Text
122     if (fm.height() < option.rect.height() / 2) {
123       img_rect.setHeight(img_rect.height()-fm.height());
124 
125       QRect text_rect = option.rect;
126       text_rect.setTop(text_rect.top() + option.rect.height() - fm.height());
127 
128       QColor text_bgcolor;
129       QColor text_fgcolor;
130 
131       if (option.state & QStyle::State_Selected) {
132         text_bgcolor = option.palette.highlight().color();
133         text_fgcolor = option.palette.highlightedText().color();
134       } else {
135         text_bgcolor = Qt::white;
136         text_fgcolor = Qt::black;
137       }
138 
139       painter->fillRect(text_rect, text_bgcolor);
140       painter->setPen(text_fgcolor);
141 
142       QString duration_str = index.data(Qt::UserRole).toString();
143       int timecode_width = fm.width(duration_str);
144       int max_name_width = option.rect.width();
145 
146       if (timecode_width < option.rect.width() / 2) {
147         painter->drawText(text_rect, Qt::AlignBottom | Qt::AlignRight, index.data(Qt::UserRole).toString());
148         max_name_width -= timecode_width;
149       }
150 
151       painter->drawText(text_rect,
152                         Qt::AlignBottom | Qt::AlignLeft,
153                         fm.elidedText(index.data(Qt::DisplayRole).toString(), Qt::ElideRight, max_name_width));
154 
155     }
156 
157     // Draw image
158     QIcon ico = index.data(Qt::DecorationRole).value<QIcon>();
159     QSize icon_size = ico.actualSize(img_rect.size());
160     img_rect = QRect(img_rect.x() + (img_rect.width() / 2 - icon_size.width() / 2),
161                      img_rect.y() + (img_rect.height() / 2 - icon_size.height() / 2),
162                      icon_size.width(),
163                      icon_size.height());
164     painter->drawPixmap(img_rect, ico.pixmap(icon_size));
165 
166     if (option.state & QStyle::State_Selected) {
167       QColor highlight_color = option.palette.highlight().color();
168       highlight_color.setAlphaF(0.5);
169 
170       painter->setCompositionMode(QPainter::CompositionMode_SourceAtop);
171       painter->fillRect(img_rect, highlight_color);
172     }
173   } else if (option.decorationPosition == QStyleOptionViewItem::Left) { // List Mode
174 
175     if (option.state & QStyle::State_Selected) {
176       painter->fillRect(option.rect, option.palette.highlight());
177     }
178 
179     img_rect.setWidth(qMin(img_rect.width(), img_rect.height()));
180 
181     QIcon ico = index.data(Qt::DecorationRole).value<QIcon>();
182     QSize icon_size = ico.actualSize(img_rect.size());
183     img_rect = QRect(img_rect.x() + (img_rect.width() / 2 - icon_size.width() / 2),
184                      img_rect.y() + (img_rect.height() / 2 - icon_size.height() / 2),
185                      icon_size.width(),
186                      icon_size.height());
187     painter->drawPixmap(img_rect, ico.pixmap(icon_size));
188 
189     QRect text_rect = option.rect;
190     text_rect.setLeft(text_rect.left() + option.rect.height());
191 
192     int maximum_line_count = qMax(1, option.rect.height() / fm.height() - 1);
193     QString text;
194     if (maximum_line_count == 1) {
195       text = index.data(Qt::DisplayRole).toString();
196     } else {
197       text = index.data(Qt::ToolTipRole).toString();
198       if (text.isEmpty()) {
199         text = index.data(Qt::DisplayRole).toString();
200       } else {
201         QStringList strings = text.split("\n");
202         while (strings.size() > maximum_line_count) {
203           strings.removeLast();
204         }
205         text = strings.join("\n");
206       }
207     }
208 
209     painter->setPen(option.state & QStyle::State_Selected ?
210                       option.palette.highlightedText().color() : option.palette.text().color());
211 
212     painter->drawText(text_rect, Qt::AlignLeft | Qt::AlignVCenter, text);
213 
214   }
215 }
216