Shamusworld >> Repos - architektonas/blob - src/base/rs_previewactioninterface.cpp

   1
   2 #include "rs_previewactioninterface.h"
   3
   4 /**
   5  * Constructor.
   6  *
   7  * Sets the entity container on which the action class inherited
   8  * from this interface operates.
   9  */
  10 RS_PreviewActionInterface::RS_PreviewActionInterface(const char * name,
  11         RS_EntityContainer & container, RS_GraphicView & graphicView):
  12         RS_ActionInterface(name, container, graphicView)
  13 {
  14         RS_DEBUG->print("RS_PreviewActionInterface::RS_PreviewActionInterface: Setting up action with preview: \"%s\"", name);
  15
  16         // preview is linked to the container for getting access to
  17         //   document settings / dictionary variables
  18         preview = new RS_Preview(&container);
  19         visible = false;
  20
  21         RS_DEBUG->print("RS_PreviewActionInterface::RS_PreviewActionInterface: Setting up action with preview: \"%s\": OK", name);
  22 }
  23
  24 /** Destructor */
  25 RS_PreviewActionInterface::~RS_PreviewActionInterface()
  26 {
  27         delete preview;
  28 }
  29
  30 void RS_PreviewActionInterface::init(int status)
  31 {
  32         RS_ActionInterface::init(status);
  33         //deletePreview();
  34         clearPreview();
  35 }
  36
  37 void RS_PreviewActionInterface::finish()
  38 {
  39         RS_ActionInterface::finish();
  40         deletePreview();
  41         clearPreview();
  42 }
  43
  44 void RS_PreviewActionInterface::suspend()
  45 {
  46         RS_ActionInterface::suspend();
  47         deletePreview();
  48         //clearPreview();
  49 }
  50
  51 void RS_PreviewActionInterface::resume()
  52 {
  53         RS_ActionInterface::resume();
  54         drawPreview();
  55 }
  56
  57 void RS_PreviewActionInterface::trigger()
  58 {
  59         RS_ActionInterface::trigger();
  60         deletePreview();
  61         clearPreview();
  62 }
  63
  64 /**
  65  * Clears the preview by removing all entities in it.
  66  */
  67 void RS_PreviewActionInterface::clearPreview()
  68 {
  69         preview->clear();
  70 }
  71
  72 /**
  73  * Draws the preview on the screen.
  74  */
  75 void RS_PreviewActionInterface::drawPreview()
  76 {
  77         if (!visible)
  78                 xorPreview();
  79 }
  80
  81 /**
  82  * Deletes the preview from the screen.
  83  */
  84 void RS_PreviewActionInterface::deletePreview()
  85 {
  86         if (visible)
  87                 xorPreview();
  88 }
  89
  90 //#include "qg_graphicview.h"
  91 /**
  92  * Draws / deletes the current preview.
  93  */
  94 void RS_PreviewActionInterface::xorPreview()
  95 {
  96 #warning "!!! xorPreview() not working AT ALL !!!"
  97 #if 0
  98         if (!preview->isEmpty())
  99         {
 100                 RS_Painter * painter = graphicView->createDirectPainter();
 101                 painter->setPreviewMode();
 102                 painter->setOffset(offset);
 103                 graphicView->drawEntity(preview, false);
 104                 graphicView->destroyPainter();
 105         }
 106
 107         visible = !visible;
 108 #else
 109         // OK, we need a new approach here--direct painting is NOT acceptable anymore!
 110         // So, something like this:
 111         /*
 112         In graphicView->drawEntity(preview, false); we set the pointer to an entity
 113         in the GV. We set a flag telling paintEvent that this is a preview, and then
 114         call update() in the view. *That* should do it...
 115         */
 116 //This doesn't work, causes the thing to crash...
 117 //Now it works, just need to upgrade the rendering paths so that they aren't all
 118 //fucked up like QCad was...
 119 #if 1
 120         if (!preview->isEmpty())
 121         {
 122                 graphicView->SetPreviewMode();
 123                 graphicView->SetPreviewEntity(preview);
 124                 graphicView->SetPreviewOffset(offset);
 125                 graphicView->redraw();
 126         }
 127
 128         visible = !visible;
 129 #endif
 130 #endif
 131 }