1 /*
2  * LibrePCB - Professional EDA for everyone!
3  * Copyright (C) 2013 LibrePCB Developers, see AUTHORS.md for contributors.
4  * https://librepcb.org/
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  *  Includes
22  ******************************************************************************/
23 #include "boardeditorstate_addstroketext.h"
24 
25 #include "../boardeditor.h"
26 
27 #include <librepcb/common/geometry/cmd/cmdstroketextedit.h>
28 #include <librepcb/common/geometry/stroketext.h>
29 #include <librepcb/common/graphics/graphicsview.h>
30 #include <librepcb/common/undostack.h>
31 #include <librepcb/common/widgets/graphicslayercombobox.h>
32 #include <librepcb/common/widgets/positivelengthedit.h>
33 #include <librepcb/project/boards/board.h>
34 #include <librepcb/project/boards/boardlayerstack.h>
35 #include <librepcb/project/boards/cmd/cmdboardstroketextadd.h>
36 #include <librepcb/project/boards/items/bi_stroketext.h>
37 
38 #include <QtCore>
39 
40 /*******************************************************************************
41  *  Namespace
42  ******************************************************************************/
43 namespace librepcb {
44 namespace project {
45 namespace editor {
46 
47 /*******************************************************************************
48  *  Constructors / Destructor
49  ******************************************************************************/
50 
BoardEditorState_AddStrokeText(const Context & context)51 BoardEditorState_AddStrokeText::BoardEditorState_AddStrokeText(
52     const Context& context) noexcept
53   : BoardEditorState(context),
54     mIsUndoCmdActive(false),
55     mLastStrokeTextProperties(
56         Uuid::createRandom(),  // UUID is not relevant here
57         GraphicsLayerName(GraphicsLayer::sBoardDocumentation),  // Layer
58         "{{PROJECT}}",  // Text
59         Point(),  // Position is not relevant here
60         Angle::deg0(),  // Rotation
61         PositiveLength(1500000),  // Height
62         UnsignedLength(200000),  // Line width
63         StrokeTextSpacing(),  // Letter spacing
64         StrokeTextSpacing(),  // Line spacing
65         Alignment(HAlign::left(), VAlign::bottom()),  // Alignment
66         false,  // Mirror
67         true  // Auto rotate
68         ),
69     mCurrentTextToPlace(nullptr) {
70 }
71 
~BoardEditorState_AddStrokeText()72 BoardEditorState_AddStrokeText::~BoardEditorState_AddStrokeText() noexcept {
73 }
74 
75 /*******************************************************************************
76  *  General Methods
77  ******************************************************************************/
78 
entry()79 bool BoardEditorState_AddStrokeText::entry() noexcept {
80   Q_ASSERT(mIsUndoCmdActive == false);
81 
82   Board* board = getActiveBoard();
83   if (!board) return false;
84 
85   // Clear board selection because selection does not make sense in this state
86   board->clearSelection();
87   makeLayerVisible();
88 
89   // Add a new stroke text
90   Point pos = mContext.editorGraphicsView.mapGlobalPosToScenePos(QCursor::pos(),
91                                                                  true, true);
92   if (!addText(*board, pos)) return false;
93 
94   // Add the "Layer:" label to the toolbar
95   mLayerLabel.reset(new QLabel(tr("Layer:")));
96   mLayerLabel->setIndent(10);
97   mContext.editorUi.commandToolbar->addWidget(mLayerLabel.data());
98 
99   // Add the layers combobox to the toolbar
100   mLayerComboBox.reset(new GraphicsLayerComboBox());
101   mLayerComboBox->setLayers(getAllowedGeometryLayers(*board));
102   mLayerComboBox->setCurrentLayer(mLastStrokeTextProperties.getLayerName());
103   mContext.editorUi.commandToolbar->addWidget(mLayerComboBox.data());
104   connect(mLayerComboBox.data(), &GraphicsLayerComboBox::currentLayerChanged,
105           this, &BoardEditorState_AddStrokeText::layerComboBoxLayerChanged);
106 
107   // Add the "Text:" label to the toolbar
108   mTextLabel.reset(new QLabel(tr("Text:")));
109   mTextLabel->setIndent(10);
110   mContext.editorUi.commandToolbar->addWidget(mTextLabel.data());
111 
112   // Add the text combobox to the toolbar
113   mTextComboBox.reset(new QComboBox());
114   mTextComboBox->setEditable(true);
115   mTextComboBox->setMinimumContentsLength(20);
116   mTextComboBox->addItem("{{BOARD}}");
117   mTextComboBox->addItem("{{PROJECT}}");
118   mTextComboBox->addItem("{{AUTHOR}}");
119   mTextComboBox->addItem("{{VERSION}}");
120   mTextComboBox->setCurrentIndex(
121       mTextComboBox->findText(mLastStrokeTextProperties.getText()));
122   mTextComboBox->setCurrentText(mLastStrokeTextProperties.getText());
123   connect(mTextComboBox.data(), &QComboBox::currentTextChanged, this,
124           &BoardEditorState_AddStrokeText::textComboBoxValueChanged);
125   mContext.editorUi.commandToolbar->addWidget(mTextComboBox.data());
126 
127   // Add the "Height:" label to the toolbar
128   mHeightLabel.reset(new QLabel(tr("Height:")));
129   mHeightLabel->setIndent(10);
130   mContext.editorUi.commandToolbar->addWidget(mHeightLabel.data());
131 
132   // Add the height spinbox to the toolbar
133   mHeightEdit.reset(new PositiveLengthEdit());
134   mHeightEdit->setValue(mLastStrokeTextProperties.getHeight());
135   connect(mHeightEdit.data(), &PositiveLengthEdit::valueChanged, this,
136           &BoardEditorState_AddStrokeText::heightEditValueChanged);
137   mContext.editorUi.commandToolbar->addWidget(mHeightEdit.data());
138 
139   // Add the "Mirror:" label to the toolbar
140   mMirrorLabel.reset(new QLabel(tr("Mirror:")));
141   mMirrorLabel->setIndent(10);
142   mContext.editorUi.commandToolbar->addWidget(mMirrorLabel.data());
143 
144   // Add the mirror checkbox to the toolbar
145   mMirrorCheckBox.reset(new QCheckBox());
146   mMirrorCheckBox->setChecked(mLastStrokeTextProperties.getMirrored());
147   connect(mMirrorCheckBox.data(), &QCheckBox::toggled, this,
148           &BoardEditorState_AddStrokeText::mirrorCheckBoxToggled);
149   mContext.editorUi.commandToolbar->addWidget(mMirrorCheckBox.data());
150 
151   // Change the cursor
152   mContext.editorGraphicsView.setCursor(Qt::CrossCursor);
153 
154   return true;
155 }
156 
exit()157 bool BoardEditorState_AddStrokeText::exit() noexcept {
158   // Abort the currently active command
159   if (!abortCommand(true)) return false;
160 
161   // Remove actions / widgets from the "command" toolbar
162   mMirrorCheckBox.reset();
163   mMirrorLabel.reset();
164   mHeightEdit.reset();
165   mHeightLabel.reset();
166   mTextComboBox.reset();
167   mTextLabel.reset();
168   mLayerComboBox.reset();
169   mLayerLabel.reset();
170 
171   // Reset the cursor
172   mContext.editorGraphicsView.setCursor(Qt::ArrowCursor);
173 
174   return true;
175 }
176 
177 /*******************************************************************************
178  *  Event Handlers
179  ******************************************************************************/
180 
processRotateCw()181 bool BoardEditorState_AddStrokeText::processRotateCw() noexcept {
182   return rotateText(-Angle::deg90());
183 }
184 
processRotateCcw()185 bool BoardEditorState_AddStrokeText::processRotateCcw() noexcept {
186   return rotateText(Angle::deg90());
187 }
188 
processFlipHorizontal()189 bool BoardEditorState_AddStrokeText::processFlipHorizontal() noexcept {
190   return flipText(Qt::Horizontal);
191 }
192 
processFlipVertical()193 bool BoardEditorState_AddStrokeText::processFlipVertical() noexcept {
194   return flipText(Qt::Vertical);
195 }
196 
processGraphicsSceneMouseMoved(QGraphicsSceneMouseEvent & e)197 bool BoardEditorState_AddStrokeText::processGraphicsSceneMouseMoved(
198     QGraphicsSceneMouseEvent& e) noexcept {
199   Point pos = Point::fromPx(e.scenePos()).mappedToGrid(getGridInterval());
200   return updatePosition(pos);
201 }
202 
processGraphicsSceneLeftMouseButtonPressed(QGraphicsSceneMouseEvent & e)203 bool BoardEditorState_AddStrokeText::processGraphicsSceneLeftMouseButtonPressed(
204     QGraphicsSceneMouseEvent& e) noexcept {
205   Board* board = getActiveBoard();
206   if (!board) return false;
207 
208   Point pos = Point::fromPx(e.scenePos()).mappedToGrid(getGridInterval());
209   fixPosition(pos);
210   addText(*board, pos);
211   return true;
212 }
213 
214 bool BoardEditorState_AddStrokeText::
processGraphicsSceneLeftMouseButtonDoubleClicked(QGraphicsSceneMouseEvent & e)215     processGraphicsSceneLeftMouseButtonDoubleClicked(
216         QGraphicsSceneMouseEvent& e) noexcept {
217   return processGraphicsSceneLeftMouseButtonPressed(e);
218 }
219 
220 bool BoardEditorState_AddStrokeText::
processGraphicsSceneRightMouseButtonReleased(QGraphicsSceneMouseEvent & e)221     processGraphicsSceneRightMouseButtonReleased(
222         QGraphicsSceneMouseEvent& e) noexcept {
223   // Only rotate if cursor was not moved during click
224   if (e.screenPos() == e.buttonDownScreenPos(Qt::RightButton)) {
225     rotateText(Angle::deg90());
226   }
227 
228   // Always accept the event if we are placing a text! When ignoring the
229   // event, the state machine will abort the tool by a right click!
230   return mIsUndoCmdActive;
231 }
232 
233 /*******************************************************************************
234  *  Private Methods
235  ******************************************************************************/
236 
addText(Board & board,const Point & pos)237 bool BoardEditorState_AddStrokeText::addText(Board& board,
238                                              const Point& pos) noexcept {
239   Q_ASSERT(mIsUndoCmdActive == false);
240 
241   try {
242     mContext.undoStack.beginCmdGroup(tr("Add text to board"));
243     mIsUndoCmdActive = true;
244     mLastStrokeTextProperties.setPosition(pos);
245     mCurrentTextToPlace = new BI_StrokeText(
246         board, StrokeText(Uuid::createRandom(), mLastStrokeTextProperties));
247     QScopedPointer<CmdBoardStrokeTextAdd> cmdAdd(
248         new CmdBoardStrokeTextAdd(*mCurrentTextToPlace));
249     mContext.undoStack.appendToCmdGroup(cmdAdd.take());
250     mCurrentTextEditCmd.reset(
251         new CmdStrokeTextEdit(mCurrentTextToPlace->getText()));
252     return true;
253   } catch (const Exception& e) {
254     QMessageBox::critical(parentWidget(), tr("Error"), e.getMsg());
255     abortCommand(false);
256     return false;
257   }
258 }
259 
rotateText(const Angle & angle)260 bool BoardEditorState_AddStrokeText::rotateText(const Angle& angle) noexcept {
261   if ((!mCurrentTextEditCmd) || (!mCurrentTextToPlace)) return false;
262 
263   mCurrentTextEditCmd->rotate(angle, mCurrentTextToPlace->getPosition(), true);
264   mLastStrokeTextProperties = mCurrentTextToPlace->getText();
265 
266   return true;  // Event handled
267 }
268 
flipText(Qt::Orientation orientation)269 bool BoardEditorState_AddStrokeText::flipText(
270     Qt::Orientation orientation) noexcept {
271   if ((!mCurrentTextEditCmd) || (!mCurrentTextToPlace)) return false;
272 
273   mCurrentTextEditCmd->mirrorGeometry(orientation,
274                                       mCurrentTextToPlace->getPosition(), true);
275   mCurrentTextEditCmd->mirrorLayer(true);
276   mLastStrokeTextProperties = mCurrentTextToPlace->getText();
277 
278   // Update toolbar widgets
279   mLayerComboBox->setCurrentLayer(mLastStrokeTextProperties.getLayerName());
280   mMirrorCheckBox->setChecked(mLastStrokeTextProperties.getMirrored());
281 
282   return true;  // Event handled
283 }
284 
updatePosition(const Point & pos)285 bool BoardEditorState_AddStrokeText::updatePosition(const Point& pos) noexcept {
286   if (mCurrentTextEditCmd) {
287     mCurrentTextEditCmd->setPosition(pos, true);
288     return true;  // Event handled
289   } else {
290     return false;
291   }
292 }
293 
fixPosition(const Point & pos)294 bool BoardEditorState_AddStrokeText::fixPosition(const Point& pos) noexcept {
295   Q_ASSERT(mIsUndoCmdActive == true);
296 
297   try {
298     if (mCurrentTextEditCmd) {
299       mCurrentTextEditCmd->setPosition(pos, false);
300       mContext.undoStack.appendToCmdGroup(mCurrentTextEditCmd.take());
301     }
302     mContext.undoStack.commitCmdGroup();
303     mIsUndoCmdActive = false;
304     mCurrentTextToPlace = nullptr;
305     return true;
306   } catch (const Exception& e) {
307     QMessageBox::critical(parentWidget(), tr("Error"), e.getMsg());
308     abortCommand(false);
309     return false;
310   }
311 }
312 
abortCommand(bool showErrMsgBox)313 bool BoardEditorState_AddStrokeText::abortCommand(bool showErrMsgBox) noexcept {
314   try {
315     // Delete the current edit command
316     mCurrentTextEditCmd.reset();
317 
318     // Abort the undo command
319     if (mIsUndoCmdActive) {
320       mContext.undoStack.abortCmdGroup();
321       mIsUndoCmdActive = false;
322     }
323 
324     // Reset attributes, go back to idle state
325     mCurrentTextToPlace = nullptr;
326     return true;
327   } catch (const Exception& e) {
328     if (showErrMsgBox) {
329       QMessageBox::critical(parentWidget(), tr("Error"), e.getMsg());
330     }
331     return false;
332   }
333 }
334 
layerComboBoxLayerChanged(const GraphicsLayerName & layerName)335 void BoardEditorState_AddStrokeText::layerComboBoxLayerChanged(
336     const GraphicsLayerName& layerName) noexcept {
337   mLastStrokeTextProperties.setLayerName(layerName);
338   if (mCurrentTextEditCmd) {
339     mCurrentTextEditCmd->setLayerName(mLastStrokeTextProperties.getLayerName(),
340                                       true);
341     makeLayerVisible();
342   }
343 }
344 
textComboBoxValueChanged(const QString & value)345 void BoardEditorState_AddStrokeText::textComboBoxValueChanged(
346     const QString& value) noexcept {
347   mLastStrokeTextProperties.setText(value.trimmed());
348   if (mCurrentTextEditCmd) {
349     mCurrentTextEditCmd->setText(mLastStrokeTextProperties.getText(), true);
350   }
351 }
352 
heightEditValueChanged(const PositiveLength & value)353 void BoardEditorState_AddStrokeText::heightEditValueChanged(
354     const PositiveLength& value) noexcept {
355   mLastStrokeTextProperties.setHeight(value);
356   if (mCurrentTextEditCmd) {
357     mCurrentTextEditCmd->setHeight(mLastStrokeTextProperties.getHeight(), true);
358   }
359 }
360 
mirrorCheckBoxToggled(bool checked)361 void BoardEditorState_AddStrokeText::mirrorCheckBoxToggled(
362     bool checked) noexcept {
363   mLastStrokeTextProperties.setMirrored(checked);
364   if (mCurrentTextEditCmd) {
365     mCurrentTextEditCmd->setMirrored(mLastStrokeTextProperties.getMirrored(),
366                                      true);
367   }
368 }
369 
makeLayerVisible()370 void BoardEditorState_AddStrokeText::makeLayerVisible() noexcept {
371   if (Board* board = getActiveBoard()) {
372     GraphicsLayer* layer = board->getLayerStack().getLayer(
373         *mLastStrokeTextProperties.getLayerName());
374     if (layer && layer->isEnabled()) layer->setVisible(true);
375   }
376 }
377 
378 /*******************************************************************************
379  *  End of File
380  ******************************************************************************/
381 
382 }  // namespace editor
383 }  // namespace project
384 }  // namespace librepcb
385