Mercurial > LightClone

annotate LightClone/Source/GuiInterface.cpp @ 19:51718795f019

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Adding event handling & drag and drop to GuiInterface
author koryspansel
date Thu, 15 Sep 2011 12:13:40 -0700
parents 33cb6979ac51
children 4e9b5299ffdc
rev   line source
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1 /*
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2 * GuiInterface
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3 */
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4
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5 #include "GuiInterface.h"
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6
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7 /*
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8 * GuiInterface
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9 */
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10 GuiInterface::GuiInterface() : pInputManager(NULL), pDragSource(NULL)
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11 {
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12 }
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13
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14 /*
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15 * Initialize
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16 */
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17 ErrorCode GuiInterface::Initialize(ResourceManager* pResourceManager, InputManager* pInput)
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18 {
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19 ErrorCode eCode = GuiElement::Initialize(pResourceManager);
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20 if(eCode == Error_Success)
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21 {
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22 pInputManager = pInput;
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23 //ASSERT(pInputManager);
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24 }
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25
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26 return eCode;
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27 }
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28
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29 /*
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30 * Terminate
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31 */
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32 void GuiInterface::Terminate()
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33 {
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34 GuiElement::Terminate();
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35 }
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36
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37 /*
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38 * Update
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39 */
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40 void GuiInterface::Update(float fElapsed)
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41 {
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42 const float fX = pInputManager->GetMouseX();
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43 const float fY = pInputManager->GetMouseY();
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44
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45 GuiElement::Update(fElapsed);
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46
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47 if(pInputManager->IsButtonDown(MouseButton_Left) && !pInputManager->WasButtonDown(MouseButton_Left))
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48 {
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49 GuiElement* pElement = Pick(fX, fY);
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50 if(pElement)
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51 {
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52 pElement->OnMouseDown(MouseButton_Left, fX, fY);
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53
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54 //TODO: pElement could also be the source of a drag operation
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55 }
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56 }
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57 else
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58
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59 if(!pInputManager->IsButtonDown(MouseButton_Left) && pInputManager->WasButtonDown(MouseButton_Left))
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60 {
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61 GuiElement* pElement = Pick(fX, fY);
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62 if(pElement)
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63 {
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64 GuiElement* pContainer = pElement;
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65
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66 if(pDragSource)
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67 {
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68 while(pContainer && !pElement->AllowDrop())
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69 {
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70 pContainer = pContainer->GetContainer();
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71 }
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72
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73 if(pContainer)
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74 {
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75 pContainer->OnDrop(pDragSource, fX, fY);
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76 }
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77 }
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78 else
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79 {
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80 pElement->OnMouseUp(MouseButton_Left, fX, fY);
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81 }
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82
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83 pDragSource = NULL;
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84 }
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85 }
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86 }