| virtual void OglGui::ViewerPointCloud::MouseFunc | ( | int | msg, | |
| int | btn, | |||
| int | state, | |||
| int | x, | |||
| int | y | |||
| ) | [inline, virtual] |
This function is called by the event handling system everytime the user has moved or clicked the mouse.
So if you want a window which reacts to the mouse in a specific way, you can inherit a class from Window. Another method to implement mouse behaviour is to use a window listener (in this case you have to inherit a class from WindowListener and attach it to this window, see WindowListener for more details)
Reimplemented from OglGui::Window.
Reimplemented in Impala::Application::MediaTable::TableViewerPointCloud.
Definition at line 479 of file ViewerPointCloud.h.
References OglGui::OglWindow::H(), HandleWindowMouse(), mPtDocX, mPtDocY, mScale, Scale(), and OglGui::OglWindow::W().
Referenced by Impala::Application::MediaTable::TableViewerPointCloud::MouseFunc(), and OglGui::ViewerPointCloudNavigator::ToViewerPointCloudMouse().
00480 { 00481 static bool isDragging = false; 00482 static float markX, markY, markDocX, markDocY; 00483 static int lastX; 00484 00485 if (msg == oglMouseWheelUp) 00486 { 00487 // mouse position based zooming, implemented as follows: 00488 // transform coordinates of window, mouse and nodes to -0.5 .. +0.5, 00489 // jump node under mouse to center, scale with 1.1f into center 00490 // and unjump. 00491 float xd = (x / (float)W()) - 0.5f; 00492 float yd = (y / (float)H()) - 0.5f; 00493 float x = mPtDocX / W()-0.5f; 00494 float y = mPtDocY / H()-0.5f; 00495 x -= xd/mScale; 00496 y -= yd/mScale; 00497 int jumpX=mPtDocX, jumpY=mPtDocY; 00498 mPtDocX = (int)((x+0.5f) * W()); 00499 mPtDocY = (int)((y+0.5f) * H()); 00500 jumpX -= mPtDocX; 00501 jumpY -= mPtDocY; 00502 Scale(mScale * (1.1f)); 00503 jumpX = (float)jumpX / 1.1f; 00504 jumpY = (float)jumpY / 1.1f; 00505 mPtDocX += jumpX; 00506 mPtDocY += jumpY; 00507 } 00508 if (msg == oglMouseWheelDown) 00509 { 00510 float xd = (x / (float)W()) - 0.5f; 00511 float yd = (y / (float)H()) - 0.5f; 00512 float x = mPtDocX / W()-0.5f; 00513 float y = mPtDocY / H()-0.5f; 00514 x -= xd/mScale; 00515 y -= yd/mScale; 00516 int jumpX=mPtDocX, jumpY=mPtDocY; 00517 mPtDocX = (int)((x+0.5f) * W()); 00518 mPtDocY = (int)((y+0.5f) * H()); 00519 jumpX -= mPtDocX; 00520 jumpY -= mPtDocY; 00521 Scale(mScale * (0.9f)); 00522 jumpX = (float)jumpX / 0.9f; 00523 jumpY = (float)jumpY / 0.9f; 00524 mPtDocX += jumpX; 00525 mPtDocY += jumpY; 00526 } 00527 00528 if (msg == oglMouseDown && btn == oglRightButton) 00529 { 00530 isDragging = true; 00531 markDocX = mPtDocX; 00532 markDocY = mPtDocY; 00533 markX = x; 00534 markY = y; 00535 } 00536 if (msg == oglMouseMove && isDragging) 00537 { 00538 if (state & oglShift) 00539 Scale(mScale * (1.f+((x - lastX)/50.f))); 00540 else 00541 { 00542 mPtDocX = markDocX + (x - markX)/mScale; 00543 mPtDocY = markDocY + (y - markY)/mScale; 00544 } 00545 } 00546 if (msg == oglMouseUp) 00547 isDragging = false; 00548 00549 HandleWindowMouse(msg, btn, state, x, y); 00550 lastX = x; 00551 }
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