Mercurial > hg > orthanc-stone
annotate Framework/Widgets/LayoutWidget.cpp @ 53:c2dc924f1a63 wasm
removing threading out of the framework
| author | Sebastien Jodogne <s.jodogne@gmail.com> |
|---|---|
| date | Thu, 27 Apr 2017 16:57:49 +0200 |
| parents | 25befef48c35 |
| children | 01aa453d4d5b |
| 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 | |
|
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5 * Copyright (C) 2017 Osimis, Belgium |
| 0 | 6 * |
| 7 * This program is free software: you can redistribute it and/or | |
| 47 | 8 * modify it under the terms of the GNU Affero General Public License |
| 9 * as published by the Free Software Foundation, either version 3 of | |
| 10 * the License, or (at your option) any later version. | |
| 0 | 11 * |
| 12 * This program is distributed in the hope that it will be useful, but | |
| 13 * WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 47 | 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 15 * Affero General Public License for more details. | |
| 16 * | |
| 17 * You should have received a copy of the GNU Affero General Public License | |
| 0 | 18 * along with this program. If not, see <http://www.gnu.org/licenses/>. |
| 19 **/ | |
| 20 | |
| 21 | |
| 22 #include "LayoutWidget.h" | |
| 23 | |
| 16 | 24 #include "../../Resources/Orthanc/Core/Logging.h" |
| 25 #include "../../Resources/Orthanc/Core/OrthancException.h" | |
| 0 | 26 |
| 27 #include <boost/math/special_functions/round.hpp> | |
| 28 | |
| 29 namespace OrthancStone | |
| 30 { | |
| 31 class LayoutWidget::LayoutMouseTracker : public IMouseTracker | |
| 32 { | |
| 33 private: | |
| 34 std::auto_ptr<IMouseTracker> tracker_; | |
| 35 int left_; | |
| 36 int top_; | |
| 37 unsigned int width_; | |
| 38 unsigned int height_; | |
| 39 | |
| 40 public: | |
| 41 LayoutMouseTracker(IMouseTracker* tracker, | |
| 42 int left, | |
| 43 int top, | |
| 44 unsigned int width, | |
| 45 unsigned int height) : | |
| 46 tracker_(tracker), | |
| 47 left_(left), | |
| 48 top_(top), | |
| 49 width_(width), | |
| 50 height_(height) | |
| 51 { | |
| 52 if (tracker == NULL) | |
| 53 { | |
| 54 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError); | |
| 55 } | |
| 56 } | |
| 57 | |
| 58 virtual void Render(Orthanc::ImageAccessor& surface) | |
| 59 { | |
| 60 Orthanc::ImageAccessor accessor = surface.GetRegion(left_, top_, width_, height_); | |
| 61 tracker_->Render(accessor); | |
| 62 } | |
| 63 | |
| 64 virtual void MouseUp() | |
| 65 { | |
| 66 tracker_->MouseUp(); | |
| 67 } | |
| 68 | |
| 69 virtual void MouseMove(int x, | |
| 70 int y) | |
| 71 { | |
| 72 tracker_->MouseMove(x - left_, y - top_); | |
| 73 } | |
| 74 }; | |
| 75 | |
| 76 | |
| 77 class LayoutWidget::ChildWidget : public boost::noncopyable | |
| 78 { | |
| 79 private: | |
| 80 std::auto_ptr<IWidget> widget_; | |
| 81 int left_; | |
| 82 int top_; | |
| 83 unsigned int width_; | |
| 84 unsigned int height_; | |
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85 bool hasUpdate_; |
| 0 | 86 |
| 87 public: | |
| 88 ChildWidget(IWidget* widget) : | |
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89 widget_(widget), |
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90 hasUpdate_(widget->HasUpdateContent()) |
| 0 | 91 { |
| 92 assert(widget != NULL); | |
| 93 SetEmpty(); | |
| 94 } | |
| 95 | |
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96 void UpdateContent() |
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97 { |
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98 if (hasUpdate_) |
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99 { |
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100 widget_->UpdateContent(); |
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101 } |
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102 } |
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103 |
| 0 | 104 IWidget& GetWidget() const |
| 105 { | |
| 106 return *widget_; | |
| 107 } | |
| 108 | |
| 109 void SetRectangle(unsigned int left, | |
| 110 unsigned int top, | |
| 111 unsigned int width, | |
| 112 unsigned int height) | |
| 113 { | |
| 114 left_ = left; | |
| 115 top_ = top; | |
| 116 width_ = width; | |
| 117 height_ = height; | |
| 118 | |
| 119 widget_->SetSize(width, height); | |
| 120 } | |
| 121 | |
| 122 void SetEmpty() | |
| 123 { | |
| 124 SetRectangle(0, 0, 0, 0); | |
| 125 } | |
| 126 | |
| 127 bool Contains(int x, | |
| 128 int y) const | |
| 129 { | |
| 130 return (x >= left_ && | |
| 131 y >= top_ && | |
| 132 x < left_ + static_cast<int>(width_) && | |
| 133 y < top_ + static_cast<int>(height_)); | |
| 134 } | |
| 135 | |
| 136 bool Render(Orthanc::ImageAccessor& target) | |
| 137 { | |
| 138 if (width_ == 0 || | |
| 139 height_ == 0) | |
| 140 { | |
| 141 return true; | |
| 142 } | |
| 143 else | |
| 144 { | |
| 145 Orthanc::ImageAccessor accessor = target.GetRegion(left_, top_, width_, height_); | |
| 146 return widget_->Render(accessor); | |
| 147 } | |
| 148 } | |
| 149 | |
| 150 IMouseTracker* CreateMouseTracker(MouseButton button, | |
| 151 int x, | |
| 152 int y, | |
| 153 KeyboardModifiers modifiers) | |
| 154 { | |
| 155 if (Contains(x, y)) | |
| 156 { | |
| 157 IMouseTracker* tracker = widget_->CreateMouseTracker(button, | |
| 158 x - left_, | |
| 159 y - top_, | |
| 160 modifiers); | |
| 161 if (tracker) | |
| 162 { | |
| 163 return new LayoutMouseTracker(tracker, left_, top_, width_, height_); | |
| 164 } | |
| 165 } | |
| 166 | |
| 167 return NULL; | |
| 168 } | |
| 169 | |
| 170 void RenderMouseOver(Orthanc::ImageAccessor& target, | |
| 171 int x, | |
| 172 int y) | |
| 173 { | |
| 174 if (Contains(x, y)) | |
| 175 { | |
| 176 Orthanc::ImageAccessor accessor = target.GetRegion(left_, top_, width_, height_); | |
| 177 | |
| 178 widget_->RenderMouseOver(accessor, x - left_, y - top_); | |
| 179 } | |
| 180 } | |
| 181 | |
| 182 void MouseWheel(MouseWheelDirection direction, | |
| 183 int x, | |
| 184 int y, | |
| 185 KeyboardModifiers modifiers) | |
| 186 { | |
| 187 if (Contains(x, y)) | |
| 188 { | |
| 189 widget_->MouseWheel(direction, x - left_, y - top_, modifiers); | |
| 190 } | |
| 191 } | |
| 192 }; | |
| 193 | |
| 194 | |
| 195 void LayoutWidget::ComputeChildrenExtents() | |
| 196 { | |
| 197 if (children_.size() == 0) | |
| 198 { | |
| 199 return; | |
| 200 } | |
| 201 | |
| 202 float internal = static_cast<float>(paddingInternal_); | |
| 203 | |
| 204 if (width_ <= paddingLeft_ + paddingRight_ || | |
| 205 height_ <= paddingTop_ + paddingBottom_) | |
| 206 { | |
| 207 for (size_t i = 0; i < children_.size(); i++) | |
| 208 { | |
| 209 children_[i]->SetEmpty(); | |
| 210 } | |
| 211 } | |
| 212 else if (isHorizontal_) | |
| 213 { | |
| 214 unsigned int padding = paddingLeft_ + paddingRight_ + (children_.size() - 1) * paddingInternal_; | |
| 215 float childWidth = ((static_cast<float>(width_) - static_cast<float>(padding)) / | |
| 216 static_cast<float>(children_.size())); | |
| 217 | |
| 218 for (size_t i = 0; i < children_.size(); i++) | |
| 219 { | |
| 220 float left = static_cast<float>(paddingLeft_) + static_cast<float>(i) * (childWidth + internal); | |
| 221 float right = left + childWidth; | |
| 222 | |
| 223 if (left >= right) | |
| 224 { | |
| 225 children_[i]->SetEmpty(); | |
| 226 } | |
| 227 else | |
| 228 { | |
| 229 children_[i]->SetRectangle(static_cast<unsigned int>(left), | |
| 230 paddingTop_, | |
| 231 boost::math::iround(right - left), | |
| 232 height_ - paddingTop_ - paddingBottom_); | |
| 233 } | |
| 234 } | |
| 235 } | |
| 236 else | |
| 237 { | |
| 238 unsigned int padding = paddingTop_ + paddingBottom_ + (children_.size() - 1) * paddingInternal_; | |
| 239 float childHeight = ((static_cast<float>(height_) - static_cast<float>(padding)) / | |
| 240 static_cast<float>(children_.size())); | |
| 241 | |
| 242 for (size_t i = 0; i < children_.size(); i++) | |
| 243 { | |
| 244 float top = static_cast<float>(paddingTop_) + static_cast<float>(i) * (childHeight + internal); | |
| 245 float bottom = top + childHeight; | |
| 246 | |
| 247 if (top >= bottom) | |
| 248 { | |
| 249 children_[i]->SetEmpty(); | |
| 250 } | |
| 251 else | |
| 252 { | |
| 253 children_[i]->SetRectangle(paddingTop_, | |
| 254 static_cast<unsigned int>(top), | |
| 255 width_ - paddingLeft_ - paddingRight_, | |
| 256 boost::math::iround(bottom - top)); | |
| 257 } | |
| 258 } | |
| 259 } | |
| 260 | |
| 261 NotifyChange(*this); | |
| 262 } | |
| 263 | |
| 264 | |
| 265 LayoutWidget::LayoutWidget() : | |
| 266 isHorizontal_(true), | |
| 267 started_(false), | |
| 268 width_(0), | |
| 269 height_(0), | |
| 270 paddingLeft_(0), | |
| 271 paddingTop_(0), | |
| 272 paddingRight_(0), | |
| 273 paddingBottom_(0), | |
| 274 paddingInternal_(0) | |
| 275 { | |
| 276 } | |
| 277 | |
| 278 | |
| 279 LayoutWidget::~LayoutWidget() | |
| 280 { | |
| 281 for (size_t i = 0; i < children_.size(); i++) | |
| 282 { | |
| 283 children_[i]->GetWidget().Unregister(*this); | |
| 284 delete children_[i]; | |
| 285 } | |
| 286 } | |
| 287 | |
| 288 | |
| 289 void LayoutWidget::NotifyChange(const IWidget& widget) | |
| 290 { | |
| 291 // One of the children has changed | |
| 292 WidgetBase::NotifyChange(); | |
| 293 } | |
| 294 | |
| 295 | |
| 296 void LayoutWidget::SetHorizontal() | |
| 297 { | |
| 298 isHorizontal_ = true; | |
| 299 ComputeChildrenExtents(); | |
| 300 } | |
| 301 | |
| 302 | |
| 303 void LayoutWidget::SetVertical() | |
| 304 { | |
| 305 isHorizontal_ = false; | |
| 306 ComputeChildrenExtents(); | |
| 307 } | |
| 308 | |
| 309 | |
| 310 void LayoutWidget::SetPadding(unsigned int left, | |
| 311 unsigned int top, | |
| 312 unsigned int right, | |
| 313 unsigned int bottom, | |
| 314 unsigned int spacing) | |
| 315 { | |
| 316 paddingLeft_ = left; | |
| 317 paddingTop_ = top; | |
| 318 paddingRight_ = right; | |
| 319 paddingBottom_ = bottom; | |
| 320 paddingInternal_ = spacing; | |
| 321 } | |
| 322 | |
| 323 | |
| 324 void LayoutWidget::SetPadding(unsigned int padding) | |
| 325 { | |
| 326 paddingLeft_ = padding; | |
| 327 paddingTop_ = padding; | |
| 328 paddingRight_ = padding; | |
| 329 paddingBottom_ = padding; | |
| 330 paddingInternal_ = padding; | |
| 331 } | |
| 332 | |
| 333 | |
| 334 IWidget& LayoutWidget::AddWidget(IWidget* widget) // Takes ownership | |
| 335 { | |
| 336 if (started_) | |
| 337 { | |
| 338 LOG(ERROR) << "Cannot add child once Start() has been invoked"; | |
| 339 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls); | |
| 340 } | |
| 341 | |
| 342 if (widget == NULL) | |
| 343 { | |
| 344 throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange); | |
| 345 } | |
| 346 | |
| 347 if (GetStatusBar() != NULL) | |
| 348 { | |
| 349 widget->SetStatusBar(*GetStatusBar()); | |
| 350 } | |
| 351 else | |
| 352 { | |
| 353 widget->ResetStatusBar(); | |
| 354 } | |
| 355 | |
| 356 children_.push_back(new ChildWidget(widget)); | |
| 357 widget->Register(*this); | |
| 358 | |
| 359 ComputeChildrenExtents(); | |
| 360 | |
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361 if (widget->HasUpdateContent()) |
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362 { |
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363 hasUpdateContent_ = true; |
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364 } |
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365 |
| 0 | 366 return *widget; |
| 367 } | |
| 368 | |
| 369 | |
| 370 void LayoutWidget::SetStatusBar(IStatusBar& statusBar) | |
| 371 { | |
| 372 WidgetBase::SetStatusBar(statusBar); | |
| 373 | |
| 374 for (size_t i = 0; i < children_.size(); i++) | |
| 375 { | |
| 376 children_[i]->GetWidget().SetStatusBar(statusBar); | |
| 377 } | |
| 378 } | |
| 379 | |
| 380 | |
| 381 void LayoutWidget::ResetStatusBar() | |
| 382 { | |
| 383 WidgetBase::ResetStatusBar(); | |
| 384 | |
| 385 for (size_t i = 0; i < children_.size(); i++) | |
| 386 { | |
| 387 children_[i]->GetWidget().ResetStatusBar(); | |
| 388 } | |
| 389 } | |
| 390 | |
| 391 | |
| 392 void LayoutWidget::Start() | |
| 393 { | |
| 394 for (size_t i = 0; i < children_.size(); i++) | |
| 395 { | |
| 396 children_[i]->GetWidget().Start(); | |
| 397 } | |
| 398 | |
| 399 WidgetBase::Start(); | |
| 400 } | |
| 401 | |
| 402 | |
| 403 void LayoutWidget::Stop() | |
| 404 { | |
| 405 WidgetBase::Stop(); | |
| 406 | |
| 407 for (size_t i = 0; i < children_.size(); i++) | |
| 408 { | |
| 409 children_[i]->GetWidget().Stop(); | |
| 410 } | |
| 411 } | |
| 412 | |
| 413 | |
| 414 void LayoutWidget::SetSize(unsigned int width, | |
| 415 unsigned int height) | |
| 416 { | |
| 417 width_ = width; | |
| 418 height_ = height; | |
| 419 ComputeChildrenExtents(); | |
| 420 } | |
| 421 | |
| 422 | |
| 423 bool LayoutWidget::Render(Orthanc::ImageAccessor& surface) | |
| 424 { | |
| 425 if (!WidgetBase::Render(surface)) | |
| 426 { | |
| 427 return false; | |
| 428 } | |
| 429 | |
| 430 for (size_t i = 0; i < children_.size(); i++) | |
| 431 { | |
| 432 if (!children_[i]->Render(surface)) | |
| 433 { | |
| 434 return false; | |
| 435 } | |
| 436 } | |
| 437 | |
| 438 return true; | |
| 439 } | |
| 440 | |
| 441 | |
| 442 IMouseTracker* LayoutWidget::CreateMouseTracker(MouseButton button, | |
| 443 int x, | |
| 444 int y, | |
| 445 KeyboardModifiers modifiers) | |
| 446 { | |
| 447 for (size_t i = 0; i < children_.size(); i++) | |
| 448 { | |
| 449 IMouseTracker* tracker = children_[i]->CreateMouseTracker(button, x, y, modifiers); | |
| 450 if (tracker != NULL) | |
| 451 { | |
| 452 return tracker; | |
| 453 } | |
| 454 } | |
| 455 | |
| 456 return NULL; | |
| 457 } | |
| 458 | |
| 459 | |
| 460 void LayoutWidget::RenderMouseOver(Orthanc::ImageAccessor& target, | |
| 461 int x, | |
| 462 int y) | |
| 463 { | |
| 464 for (size_t i = 0; i < children_.size(); i++) | |
| 465 { | |
| 466 children_[i]->RenderMouseOver(target, x, y); | |
| 467 } | |
| 468 } | |
| 469 | |
| 470 | |
| 471 void LayoutWidget::MouseWheel(MouseWheelDirection direction, | |
| 472 int x, | |
| 473 int y, | |
| 474 KeyboardModifiers modifiers) | |
| 475 { | |
| 476 for (size_t i = 0; i < children_.size(); i++) | |
| 477 { | |
| 478 children_[i]->MouseWheel(direction, x, y, modifiers); | |
| 479 } | |
| 480 } | |
| 481 | |
| 482 | |
| 483 void LayoutWidget::KeyPressed(char key, | |
| 484 KeyboardModifiers modifiers) | |
| 485 { | |
| 486 for (size_t i = 0; i < children_.size(); i++) | |
| 487 { | |
| 488 children_[i]->GetWidget().KeyPressed(key, modifiers); | |
| 489 } | |
| 490 } | |
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491 |
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492 |
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493 void LayoutWidget::UpdateContent() |
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494 { |
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495 if (hasUpdateContent_) |
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496 { |
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497 for (size_t i = 0; i < children_.size(); i++) |
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498 { |
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499 children_[i]->UpdateContent(); |
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500 } |
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501 } |
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502 else |
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503 { |
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504 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError); |
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505 } |
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506 } |
| 0 | 507 } |