Commit Graph

8 Commits

Author SHA1 Message Date
Mike Williams 30987cebfe Gerbview: fix cairo negative items and implement real differential mode
Layers with negative objects need to be drawn in a subsurface before
copying so they don't _CLEAR the draw items below them when a negative
object is drawn.

Differential layers are basically the same thing only they use a
different copying operation onto the layers below.

Fixes https://gitlab.com/kicad/code/kicad/-/issues/1863
Fixes https://gitlab.com/kicad/code/kicad/-/issues/4495
2021-08-31 12:43:53 +00:00
Seth Hillbrand 5af8d2d0a8 cairo: Fix rotated oval pads
Fixes: lp:1816428
* https://bugs.launchpad.net/kicad/+bug/1816428
2019-02-18 09:44:28 -08:00
Maciej Suminski bc305859b2 Mainly case changes. 2013-10-14 20:40:36 +02:00
Maciej Suminski 0ac3e1fbf2 Namespace KiGfx->KIGFX.
template<> -> template <>
Some more reformatting according to uncrustify results.
2013-10-14 16:13:35 +02:00
Maciej Suminski 87a9964c78 VIEW_GROUP now does not change depth during drawing. Introduced functions for manipulating stored items.
FIxed problem of overlay being covered by other layers while panning.
Few minor fixes.
2013-10-01 16:55:33 +02:00
Maciej Suminski 43ae1cb98d Smarter way of the overlay rendering (overlay is always refreshed, while cached&noncached targets only if the viewport or items have changed). 2013-08-19 11:02:38 +02:00
Maciej Suminski 618a5f0e75 OpenGL multitarget rendering (compositing). 2013-07-23 18:39:07 +02:00
Maciej Suminski e262b32198 Introduction of Graphics Abstraction Layer based rendering for pcbnew.
New classes:
    - VIEW - represents view that is seen by user, takes care of layer ordering & visibility and how it is displayed (which location, how much zoomed, etc.)
    - VIEW_ITEM - Base class for every item that can be displayed on VIEW (the biggest change is that now it may be necessary to override ViewBBox & ViewGetLayers method for derived classes).
    - EDA_DRAW_PANEL_GAL - Inherits after EDA_DRAW_PANEL, displays VIEW output, right now it is not editable (in opposite to usual EDA_DRAW_PANEL).
    - GAL/OPENGL_GAL/CAIRO_GAL - Base Graphics Abstraction Layer class + two different flavours (Cairo is not fully supported yet), that offers methods to draw primitives using different libraries.
    - WX_VIEW_CONTROLS - Controller for VIEW, handles user events, allows zooming, panning, etc.
    - PAINTER/PCB_PAINTER - Classes that uses GAL interface to draw items (as you may have already guessed - PCB_PAINTER is a class for drawing PCB specific object, PAINTER is an abstract class). Its methods are invoked by VIEW, when an item has to be drawn. To display a new type of item - you need to implement draw(ITEM_TYPE*) method that draws it using GAL methods.
    - STROKE_FONT - Implements stroke font drawing using GAL methods.
                          
Most important changes to Kicad original code:
    * EDA_ITEM now inherits from VIEW_ITEM, which is a base class for all drawable objects.
    * EDA_DRAW_FRAME contains both usual EDA_DRAW_PANEL and new EDA_DRAW_PANEL_GAL, that can be switched anytime.
    * There are some new layers for displaying multilayer pads, vias & pads holes (these are not shown yet on the right sidebar in pcbnew)
    * Display order of layers is different than in previous versions (if you are curious - you may check m_galLayerOrder@pcbnew/basepcbframe.cpp). Preserving usual order would result in not very natural display, such as showing silkscreen texts on the bottom.
    * Introduced new hotkey (Alt+F12) and new menu option (View->Switch canvas) for switching canvas during runtime.
    * Some of classes (mostly derived from BOARD_ITEM) now includes ViewBBox & ViewGetLayers methods.
    * Removed tools/class_painter.h, as now it is extended and included in source code.
                         
Build changes:
    * GAL-based rendering option is turned on by a new compilation CMake option KICAD_GAL.
    * When compiling with CMake option KICAD_GAL=ON, GLEW and Cairo libraries are required.
    * GAL-related code is compiled into a static library (common/libgal).
    * Build with KICAD_GAL=OFF should not need any new libraries and should come out as a standard version of Kicad
                            
Currently most of items in pcbnew can be displayed using OpenGL (to be done are DIMENSIONS and MARKERS).
More details about GAL can be found in: http://www.ohwr.org/attachments/1884/view-spec.pdf
2013-04-02 08:54:03 +02:00