#include <ipecanvas.h>
Inherited by ipe::Canvas, ipe::Canvas, and ipe::Canvas.
Member Enumeration Documentation
Keyboard modifiers. 
- Enumerator: 
- 
| EShift |  |  | EControl |  |  | EAlt |  |  | EMeta |  |  
 
 
 
- Enumerator: 
- 
| EStandardCursor |  |  | EHandCursor |  |  | ECrossCursor |  |  | EDotCursor |  |  
 
 
 
Constructor & Destructor Documentation
  
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          | CanvasBase::~CanvasBase | ( |  | ) |  |  | virtual | 
 
 
  
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          | CanvasBase::CanvasBase | ( |  | ) |  |  | protected | 
 
 
Member Function Documentation
      
        
          | void CanvasBase::setPage | ( | const Page * | page, | 
        
          |  |  | int | pno, | 
        
          |  |  | int | view, | 
        
          |  |  | const Cascade * | sheet | 
        
          |  | ) |  |  | 
      
 
Set the page to be displayed. 
Doesn't take ownership of any argument. The page number pno is only needed if page numbering is turned on. 
 
 
      
        
          | void CanvasBase::setFontPool | ( | const FontPool * | fontPool | ) |  | 
      
 
 
  
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          | Vector ipe::CanvasBase::pan | ( |  | ) | const |  | inline | 
 
 
  
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          | double ipe::CanvasBase::zoom | ( |  | ) | const |  | inline | 
 
 
  
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          | const Cascade* ipe::CanvasBase::cascade | ( |  | ) | const |  | inline | 
 
Return current style sheet cascade. 
 
 
  
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          | Vector ipe::CanvasBase::center | ( |  | ) | const |  | inline | 
 
 
  
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          | Vector ipe::CanvasBase::pos | ( |  | ) | const |  | inline | 
 
Return last mouse position (snapped!) in user coordinates. 
 
 
  
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          | Vector ipe::CanvasBase::unsnappedPos | ( |  | ) | const |  | inline | 
 
Return last unsnapped mouse position in user coordinates. 
 
 
  
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          | Vector ipe::CanvasBase::globalPos | ( |  | ) | const |  | inline | 
 
Return global mouse position of last mouse press/release. 
 
 
      
        
          | Vector CanvasBase::simpleSnapPos | ( |  | ) | const | 
      
 
Return snapped mouse position without angular snapping. 
 
 
  
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          | const Snap& ipe::CanvasBase::snap | ( |  | ) | const |  | inline | 
 
Return current snapping information. 
 
 
  
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          | int ipe::CanvasBase::additionalModifiers | ( |  | ) | const |  | inline | 
 
Return current additional modifiers. 
 
 
      
        
          | void CanvasBase::setAdditionalModifiers | ( | int | mod | ) |  | 
      
 
Set additional modifiers. 
These modifier bits are passed to the Tool when a key is pressed or a drawing action is performed in addition to the actual keyboard modifiers. 
 
 
Convert canvas (device) coordinates to user coordinates. 
 
 
Convert user coordinates to canvas (device) coordinates. 
 
 
      
        
          | void CanvasBase::setCanvasStyle | ( | const Style & | style | ) |  | 
      
 
Set style of canvas drawing. 
Includes paper color, pretty text, and grid. 
 
 
  
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          | Style ipe::CanvasBase::canvasStyle | ( |  | ) | const |  | inline | 
 
 
      
        
          | void CanvasBase::setPan | ( | const Vector & | v | ) |  | 
      
 
Set current pan position. 
The pan position is the user coordinate that is displayed at the very center of the canvas. 
 
 
      
        
          | void CanvasBase::setZoom | ( | double | zoom | ) |  | 
      
 
Set current zoom factor. 
The zoom factor maps user coordinates to screen pixel coordinates. 
 
 
      
        
          | void CanvasBase::setSnap | ( | const Snap & | s | ) |  | 
      
 
Set the snapping information. 
 
 
      
        
          | void CanvasBase::setDimmed | ( | bool | dimmed | ) |  | 
      
 
Dim whole canvas, except for the Tool. 
This mode will be reset when the Tool finishes. 
 
 
      
        
          | void CanvasBase::setAutoOrigin | ( | const Vector & | v | ) |  | 
      
 
Enable automatic angular snapping with this origin. 
 
 
      
        
          | Matrix CanvasBase::canvasTfm | ( |  | ) | const | 
      
 
Matrix mapping user coordinates to canvas coordinates. 
 
 
Set an observer. 
Use 0 to delete current observer. 
 
 
      
        
          | void CanvasBase::setFifiVisible | ( | bool | visible | ) |  | 
      
 
Set whether Fifi should be shown. 
Fifi will only be shown if a snapping mode is active. 
 
 
      
        
          | void CanvasBase::setSelectionVisible | ( | bool | visible | ) |  | 
      
 
Set whether selection should be shown when there is no tool. 
 
 
      
        
          | void CanvasBase::setTool | ( | Tool * | tool | ) |  | 
      
 
Set a new tool. 
Calls canvasObserverToolChanged(). 
 
 
      
        
          | void CanvasBase::finishTool | ( |  | ) |  | 
      
 
 
      
        
          | void CanvasBase::update | ( |  | ) |  | 
      
 
Mark for update with redrawing of objects. 
 
 
      
        
          | void CanvasBase::updateTool | ( |  | ) |  | 
      
 
Mark for update with redrawing of tool only. 
 
 
  
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          | int ipe::CanvasBase::canvasWidth | ( |  | ) | const |  | inline | 
 
 
  
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          | int ipe::CanvasBase::canvasHeight | ( |  | ) | const |  | inline | 
 
 
  
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          | virtual void ipe::CanvasBase::setCursor | ( | TCursor | cursor, |  
          |  |  | double | w = 1.0, |  
          |  |  | Color * | color = 0 |  
          |  | ) |  |  |  | pure virtual | 
 
 
  
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          | void CanvasBase::drawPaper | ( | cairo_t * | cc | ) |  |  | protected | 
 
 
  
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          | void CanvasBase::drawFrame | ( | cairo_t * | cc | ) |  |  | protected | 
 
 
  
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          | void CanvasBase::drawAxes | ( | cairo_t * | cc | ) |  |  | protected | 
 
 
  
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          | void CanvasBase::drawGrid | ( | cairo_t * | cc | ) |  |  | protected | 
 
 
  
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          | void CanvasBase::drawObjects | ( | cairo_t * | cc | ) |  |  | protected | 
 
 
  
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          | void CanvasBase::drawTool | ( | Painter & | painter | ) |  |  | protected | 
 
Draw the current canvas tool. 
If no tool is set, it draws the selected objects. 
 
 
  
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          | bool CanvasBase::snapToPaperAndFrame | ( |  | ) |  |  | protected | 
 
 
  
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          | void CanvasBase::refreshSurface | ( |  | ) |  |  | protected | 
 
 
  
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          | void CanvasBase::computeFifi | ( | double | x, |  
          |  |  | double | y |  
          |  | ) |  |  |  | protected | 
 
Stores the mouse position in iUnsnappedMousePos, computes Fifi if snapping is enabled, and stores snapped position in iMousePos. 
 
 
  
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          | virtual void ipe::CanvasBase::invalidate | ( |  | ) |  |  | protectedpure virtual | 
 
 
  
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          | virtual void ipe::CanvasBase::invalidate | ( | int | x, |  
          |  |  | int | y, |  
          |  |  | int | w, |  
          |  |  | int | h |  
          |  | ) |  |  |  | protectedpure virtual | 
 
 
Member Data Documentation
  
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          | Tool* ipe::CanvasBase::iTool |  | protected | 
 
 
  
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          | const Page* ipe::CanvasBase::iPage |  | protected | 
 
 
  
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          | int ipe::CanvasBase::iPageNumber |  | protected | 
 
 
  
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          | int ipe::CanvasBase::iView |  | protected | 
 
 
  
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          | const Cascade* ipe::CanvasBase::iCascade |  | protected | 
 
 
  
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          | Style ipe::CanvasBase::iStyle |  | protected | 
 
 
  
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          | double ipe::CanvasBase::iZoom |  | protected | 
 
 
  
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          | Snap ipe::CanvasBase::iSnap |  | protected | 
 
 
  
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          | bool ipe::CanvasBase::iDimmed |  | protected | 
 
 
  
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          | bool ipe::CanvasBase::iAutoSnap |  | protected | 
 
 
  
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          | Vector ipe::CanvasBase::iAutoOrigin |  | protected | 
 
 
  
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          | int ipe::CanvasBase::iAdditionalModifiers |  | protected | 
 
 
  
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          | bool ipe::CanvasBase::iRepaintObjects |  | protected | 
 
 
  
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          | int ipe::CanvasBase::iWidth |  | protected | 
 
 
  
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          | int ipe::CanvasBase::iHeight |  | protected | 
 
 
  
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          | cairo_surface_t* ipe::CanvasBase::iSurface |  | protected | 
 
 
  
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          | Vector ipe::CanvasBase::iUnsnappedMousePos |  | protected | 
 
 
  
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          | Vector ipe::CanvasBase::iMousePos |  | protected | 
 
 
  
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          | Vector ipe::CanvasBase::iGlobalPos |  | protected | 
 
 
  
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          | Vector ipe::CanvasBase::iOldFifi |  | protected | 
 
 
  
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          | bool ipe::CanvasBase::iFifiVisible |  | protected | 
 
 
  
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          | bool ipe::CanvasBase::iSelectionVisible |  | protected | 
 
 
  
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          | Fonts* ipe::CanvasBase::iFonts |  | protected | 
 
 
The documentation for this class was generated from the following files:
- ipecanvas.h
- ipecanvas.cpp