Mercurial > hg > orthanc-stone
annotate Framework/Widgets/LayoutWidget.cpp @ 40:7207a407bcd8
shared copyright with osimis
| author | Sebastien Jodogne <s.jodogne@gmail.com> |
|---|---|
| date | Wed, 04 Jan 2017 16:37:42 +0100 |
| parents | ff1e935768e7 |
| children | 766d31dc5716 28956ed68280 |
| rev | line source |
|---|---|
| 0 | 1 /** |
| 2 * Stone of Orthanc | |
| 3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics | |
| 4 * Department, University Hospital of Liege, Belgium | |
|
40
7207a407bcd8
shared copyright with osimis
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
16
diff
changeset
|
5 * Copyright (C) 2017 Osimis, Belgium |
| 0 | 6 * |
| 7 * This program is free software: you can redistribute it and/or | |
| 8 * modify it under the terms of the GNU General Public License as | |
| 9 * published by the Free Software Foundation, either version 3 of the | |
| 10 * License, or (at your option) any later version. | |
| 11 * | |
| 12 * In addition, as a special exception, the copyright holders of this | |
| 13 * program give permission to link the code of its release with the | |
| 14 * OpenSSL project's "OpenSSL" library (or with modified versions of it | |
| 15 * that use the same license as the "OpenSSL" library), and distribute | |
| 16 * the linked executables. You must obey the GNU General Public License | |
| 17 * in all respects for all of the code used other than "OpenSSL". If you | |
| 18 * modify file(s) with this exception, you may extend this exception to | |
| 19 * your version of the file(s), but you are not obligated to do so. If | |
| 20 * you do not wish to do so, delete this exception statement from your | |
| 21 * version. If you delete this exception statement from all source files | |
| 22 * in the program, then also delete it here. | |
| 23 * | |
| 24 * This program is distributed in the hope that it will be useful, but | |
| 25 * WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 26 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 27 * General Public License for more details. | |
| 28 * | |
| 29 * You should have received a copy of the GNU General Public License | |
| 30 * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
| 31 **/ | |
| 32 | |
| 33 | |
| 34 #include "LayoutWidget.h" | |
| 35 | |
| 16 | 36 #include "../../Resources/Orthanc/Core/Logging.h" |
| 37 #include "../../Resources/Orthanc/Core/OrthancException.h" | |
| 0 | 38 |
| 39 #include <boost/math/special_functions/round.hpp> | |
| 40 | |
| 41 namespace OrthancStone | |
| 42 { | |
| 43 class LayoutWidget::LayoutMouseTracker : public IMouseTracker | |
| 44 { | |
| 45 private: | |
| 46 std::auto_ptr<IMouseTracker> tracker_; | |
| 47 int left_; | |
| 48 int top_; | |
| 49 unsigned int width_; | |
| 50 unsigned int height_; | |
| 51 | |
| 52 public: | |
| 53 LayoutMouseTracker(IMouseTracker* tracker, | |
| 54 int left, | |
| 55 int top, | |
| 56 unsigned int width, | |
| 57 unsigned int height) : | |
| 58 tracker_(tracker), | |
| 59 left_(left), | |
| 60 top_(top), | |
| 61 width_(width), | |
| 62 height_(height) | |
| 63 { | |
| 64 if (tracker == NULL) | |
| 65 { | |
| 66 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError); | |
| 67 } | |
| 68 } | |
| 69 | |
| 70 virtual void Render(Orthanc::ImageAccessor& surface) | |
| 71 { | |
| 72 Orthanc::ImageAccessor accessor = surface.GetRegion(left_, top_, width_, height_); | |
| 73 tracker_->Render(accessor); | |
| 74 } | |
| 75 | |
| 76 virtual void MouseUp() | |
| 77 { | |
| 78 tracker_->MouseUp(); | |
| 79 } | |
| 80 | |
| 81 virtual void MouseMove(int x, | |
| 82 int y) | |
| 83 { | |
| 84 tracker_->MouseMove(x - left_, y - top_); | |
| 85 } | |
| 86 }; | |
| 87 | |
| 88 | |
| 89 class LayoutWidget::ChildWidget : public boost::noncopyable | |
| 90 { | |
| 91 private: | |
| 92 std::auto_ptr<IWidget> widget_; | |
| 93 int left_; | |
| 94 int top_; | |
| 95 unsigned int width_; | |
| 96 unsigned int height_; | |
| 97 | |
| 98 public: | |
| 99 ChildWidget(IWidget* widget) : | |
| 100 widget_(widget) | |
| 101 { | |
| 102 assert(widget != NULL); | |
| 103 SetEmpty(); | |
| 104 } | |
| 105 | |
| 106 IWidget& GetWidget() const | |
| 107 { | |
| 108 return *widget_; | |
| 109 } | |
| 110 | |
| 111 void SetRectangle(unsigned int left, | |
| 112 unsigned int top, | |
| 113 unsigned int width, | |
| 114 unsigned int height) | |
| 115 { | |
| 116 left_ = left; | |
| 117 top_ = top; | |
| 118 width_ = width; | |
| 119 height_ = height; | |
| 120 | |
| 121 widget_->SetSize(width, height); | |
| 122 } | |
| 123 | |
| 124 void SetEmpty() | |
| 125 { | |
| 126 SetRectangle(0, 0, 0, 0); | |
| 127 } | |
| 128 | |
| 129 bool Contains(int x, | |
| 130 int y) const | |
| 131 { | |
| 132 return (x >= left_ && | |
| 133 y >= top_ && | |
| 134 x < left_ + static_cast<int>(width_) && | |
| 135 y < top_ + static_cast<int>(height_)); | |
| 136 } | |
| 137 | |
| 138 bool Render(Orthanc::ImageAccessor& target) | |
| 139 { | |
| 140 if (width_ == 0 || | |
| 141 height_ == 0) | |
| 142 { | |
| 143 return true; | |
| 144 } | |
| 145 else | |
| 146 { | |
| 147 Orthanc::ImageAccessor accessor = target.GetRegion(left_, top_, width_, height_); | |
| 148 return widget_->Render(accessor); | |
| 149 } | |
| 150 } | |
| 151 | |
| 152 IMouseTracker* CreateMouseTracker(MouseButton button, | |
| 153 int x, | |
| 154 int y, | |
| 155 KeyboardModifiers modifiers) | |
| 156 { | |
| 157 if (Contains(x, y)) | |
| 158 { | |
| 159 IMouseTracker* tracker = widget_->CreateMouseTracker(button, | |
| 160 x - left_, | |
| 161 y - top_, | |
| 162 modifiers); | |
| 163 if (tracker) | |
| 164 { | |
| 165 return new LayoutMouseTracker(tracker, left_, top_, width_, height_); | |
| 166 } | |
| 167 } | |
| 168 | |
| 169 return NULL; | |
| 170 } | |
| 171 | |
| 172 void RenderMouseOver(Orthanc::ImageAccessor& target, | |
| 173 int x, | |
| 174 int y) | |
| 175 { | |
| 176 if (Contains(x, y)) | |
| 177 { | |
| 178 Orthanc::ImageAccessor accessor = target.GetRegion(left_, top_, width_, height_); | |
| 179 | |
| 180 widget_->RenderMouseOver(accessor, x - left_, y - top_); | |
| 181 } | |
| 182 } | |
| 183 | |
| 184 void MouseWheel(MouseWheelDirection direction, | |
| 185 int x, | |
| 186 int y, | |
| 187 KeyboardModifiers modifiers) | |
| 188 { | |
| 189 if (Contains(x, y)) | |
| 190 { | |
| 191 widget_->MouseWheel(direction, x - left_, y - top_, modifiers); | |
| 192 } | |
| 193 } | |
| 194 }; | |
| 195 | |
| 196 | |
| 197 void LayoutWidget::ComputeChildrenExtents() | |
| 198 { | |
| 199 if (children_.size() == 0) | |
| 200 { | |
| 201 return; | |
| 202 } | |
| 203 | |
| 204 float internal = static_cast<float>(paddingInternal_); | |
| 205 | |
| 206 if (width_ <= paddingLeft_ + paddingRight_ || | |
| 207 height_ <= paddingTop_ + paddingBottom_) | |
| 208 { | |
| 209 for (size_t i = 0; i < children_.size(); i++) | |
| 210 { | |
| 211 children_[i]->SetEmpty(); | |
| 212 } | |
| 213 } | |
| 214 else if (isHorizontal_) | |
| 215 { | |
| 216 unsigned int padding = paddingLeft_ + paddingRight_ + (children_.size() - 1) * paddingInternal_; | |
| 217 float childWidth = ((static_cast<float>(width_) - static_cast<float>(padding)) / | |
| 218 static_cast<float>(children_.size())); | |
| 219 | |
| 220 for (size_t i = 0; i < children_.size(); i++) | |
| 221 { | |
| 222 float left = static_cast<float>(paddingLeft_) + static_cast<float>(i) * (childWidth + internal); | |
| 223 float right = left + childWidth; | |
| 224 | |
| 225 if (left >= right) | |
| 226 { | |
| 227 children_[i]->SetEmpty(); | |
| 228 } | |
| 229 else | |
| 230 { | |
| 231 children_[i]->SetRectangle(static_cast<unsigned int>(left), | |
| 232 paddingTop_, | |
| 233 boost::math::iround(right - left), | |
| 234 height_ - paddingTop_ - paddingBottom_); | |
| 235 } | |
| 236 } | |
| 237 } | |
| 238 else | |
| 239 { | |
| 240 unsigned int padding = paddingTop_ + paddingBottom_ + (children_.size() - 1) * paddingInternal_; | |
| 241 float childHeight = ((static_cast<float>(height_) - static_cast<float>(padding)) / | |
| 242 static_cast<float>(children_.size())); | |
| 243 | |
| 244 for (size_t i = 0; i < children_.size(); i++) | |
| 245 { | |
| 246 float top = static_cast<float>(paddingTop_) + static_cast<float>(i) * (childHeight + internal); | |
| 247 float bottom = top + childHeight; | |
| 248 | |
| 249 if (top >= bottom) | |
| 250 { | |
| 251 children_[i]->SetEmpty(); | |
| 252 } | |
| 253 else | |
| 254 { | |
| 255 children_[i]->SetRectangle(paddingTop_, | |
| 256 static_cast<unsigned int>(top), | |
| 257 width_ - paddingLeft_ - paddingRight_, | |
| 258 boost::math::iround(bottom - top)); | |
| 259 } | |
| 260 } | |
| 261 } | |
| 262 | |
| 263 NotifyChange(*this); | |
| 264 } | |
| 265 | |
| 266 | |
| 267 void LayoutWidget::UpdateStep() | |
| 268 { | |
| 269 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError); | |
| 270 } | |
| 271 | |
| 272 | |
| 273 LayoutWidget::LayoutWidget() : | |
| 274 isHorizontal_(true), | |
| 275 started_(false), | |
| 276 width_(0), | |
| 277 height_(0), | |
| 278 paddingLeft_(0), | |
| 279 paddingTop_(0), | |
| 280 paddingRight_(0), | |
| 281 paddingBottom_(0), | |
| 282 paddingInternal_(0) | |
| 283 { | |
| 284 } | |
| 285 | |
| 286 | |
| 287 LayoutWidget::~LayoutWidget() | |
| 288 { | |
| 289 for (size_t i = 0; i < children_.size(); i++) | |
| 290 { | |
| 291 children_[i]->GetWidget().Unregister(*this); | |
| 292 delete children_[i]; | |
| 293 } | |
| 294 } | |
| 295 | |
| 296 | |
| 297 void LayoutWidget::NotifyChange(const IWidget& widget) | |
| 298 { | |
| 299 // One of the children has changed | |
| 300 WidgetBase::NotifyChange(); | |
| 301 } | |
| 302 | |
| 303 | |
| 304 void LayoutWidget::SetHorizontal() | |
| 305 { | |
| 306 isHorizontal_ = true; | |
| 307 ComputeChildrenExtents(); | |
| 308 } | |
| 309 | |
| 310 | |
| 311 void LayoutWidget::SetVertical() | |
| 312 { | |
| 313 isHorizontal_ = false; | |
| 314 ComputeChildrenExtents(); | |
| 315 } | |
| 316 | |
| 317 | |
| 318 void LayoutWidget::SetPadding(unsigned int left, | |
| 319 unsigned int top, | |
| 320 unsigned int right, | |
| 321 unsigned int bottom, | |
| 322 unsigned int spacing) | |
| 323 { | |
| 324 paddingLeft_ = left; | |
| 325 paddingTop_ = top; | |
| 326 paddingRight_ = right; | |
| 327 paddingBottom_ = bottom; | |
| 328 paddingInternal_ = spacing; | |
| 329 } | |
| 330 | |
| 331 | |
| 332 void LayoutWidget::SetPadding(unsigned int padding) | |
| 333 { | |
| 334 paddingLeft_ = padding; | |
| 335 paddingTop_ = padding; | |
| 336 paddingRight_ = padding; | |
| 337 paddingBottom_ = padding; | |
| 338 paddingInternal_ = padding; | |
| 339 } | |
| 340 | |
| 341 | |
| 342 IWidget& LayoutWidget::AddWidget(IWidget* widget) // Takes ownership | |
| 343 { | |
| 344 if (started_) | |
| 345 { | |
| 346 LOG(ERROR) << "Cannot add child once Start() has been invoked"; | |
| 347 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls); | |
| 348 } | |
| 349 | |
| 350 if (widget == NULL) | |
| 351 { | |
| 352 throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange); | |
| 353 } | |
| 354 | |
| 355 if (GetStatusBar() != NULL) | |
| 356 { | |
| 357 widget->SetStatusBar(*GetStatusBar()); | |
| 358 } | |
| 359 else | |
| 360 { | |
| 361 widget->ResetStatusBar(); | |
| 362 } | |
| 363 | |
| 364 children_.push_back(new ChildWidget(widget)); | |
| 365 widget->Register(*this); | |
| 366 | |
| 367 ComputeChildrenExtents(); | |
| 368 | |
| 369 return *widget; | |
| 370 } | |
| 371 | |
| 372 | |
| 373 void LayoutWidget::SetStatusBar(IStatusBar& statusBar) | |
| 374 { | |
| 375 WidgetBase::SetStatusBar(statusBar); | |
| 376 | |
| 377 for (size_t i = 0; i < children_.size(); i++) | |
| 378 { | |
| 379 children_[i]->GetWidget().SetStatusBar(statusBar); | |
| 380 } | |
| 381 } | |
| 382 | |
| 383 | |
| 384 void LayoutWidget::ResetStatusBar() | |
| 385 { | |
| 386 WidgetBase::ResetStatusBar(); | |
| 387 | |
| 388 for (size_t i = 0; i < children_.size(); i++) | |
| 389 { | |
| 390 children_[i]->GetWidget().ResetStatusBar(); | |
| 391 } | |
| 392 } | |
| 393 | |
| 394 | |
| 395 void LayoutWidget::Start() | |
| 396 { | |
| 397 for (size_t i = 0; i < children_.size(); i++) | |
| 398 { | |
| 399 children_[i]->GetWidget().Start(); | |
| 400 } | |
| 401 | |
| 402 WidgetBase::Start(); | |
| 403 } | |
| 404 | |
| 405 | |
| 406 void LayoutWidget::Stop() | |
| 407 { | |
| 408 WidgetBase::Stop(); | |
| 409 | |
| 410 for (size_t i = 0; i < children_.size(); i++) | |
| 411 { | |
| 412 children_[i]->GetWidget().Stop(); | |
| 413 } | |
| 414 } | |
| 415 | |
| 416 | |
| 417 void LayoutWidget::SetSize(unsigned int width, | |
| 418 unsigned int height) | |
| 419 { | |
| 420 width_ = width; | |
| 421 height_ = height; | |
| 422 ComputeChildrenExtents(); | |
| 423 } | |
| 424 | |
| 425 | |
| 426 bool LayoutWidget::Render(Orthanc::ImageAccessor& surface) | |
| 427 { | |
| 428 if (!WidgetBase::Render(surface)) | |
| 429 { | |
| 430 return false; | |
| 431 } | |
| 432 | |
| 433 for (size_t i = 0; i < children_.size(); i++) | |
| 434 { | |
| 435 if (!children_[i]->Render(surface)) | |
| 436 { | |
| 437 return false; | |
| 438 } | |
| 439 } | |
| 440 | |
| 441 return true; | |
| 442 } | |
| 443 | |
| 444 | |
| 445 IMouseTracker* LayoutWidget::CreateMouseTracker(MouseButton button, | |
| 446 int x, | |
| 447 int y, | |
| 448 KeyboardModifiers modifiers) | |
| 449 { | |
| 450 for (size_t i = 0; i < children_.size(); i++) | |
| 451 { | |
| 452 IMouseTracker* tracker = children_[i]->CreateMouseTracker(button, x, y, modifiers); | |
| 453 if (tracker != NULL) | |
| 454 { | |
| 455 return tracker; | |
| 456 } | |
| 457 } | |
| 458 | |
| 459 return NULL; | |
| 460 } | |
| 461 | |
| 462 | |
| 463 void LayoutWidget::RenderMouseOver(Orthanc::ImageAccessor& target, | |
| 464 int x, | |
| 465 int y) | |
| 466 { | |
| 467 for (size_t i = 0; i < children_.size(); i++) | |
| 468 { | |
| 469 children_[i]->RenderMouseOver(target, x, y); | |
| 470 } | |
| 471 } | |
| 472 | |
| 473 | |
| 474 void LayoutWidget::MouseWheel(MouseWheelDirection direction, | |
| 475 int x, | |
| 476 int y, | |
| 477 KeyboardModifiers modifiers) | |
| 478 { | |
| 479 for (size_t i = 0; i < children_.size(); i++) | |
| 480 { | |
| 481 children_[i]->MouseWheel(direction, x, y, modifiers); | |
| 482 } | |
| 483 } | |
| 484 | |
| 485 | |
| 486 void LayoutWidget::KeyPressed(char key, | |
| 487 KeyboardModifiers modifiers) | |
| 488 { | |
| 489 for (size_t i = 0; i < children_.size(); i++) | |
| 490 { | |
| 491 children_[i]->GetWidget().KeyPressed(key, modifiers); | |
| 492 } | |
| 493 } | |
| 494 } |