dbd94b7501
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@30072 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
206 lines
7.2 KiB
Plaintext
206 lines
7.2 KiB
Plaintext
Enhancements for wxWidgets 3.0
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==============================
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This table contains the brief summary of the issues below. Priority and
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Difficulty are values from 1 to 10 with 1 being the least important/difficult
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and 10 the most.
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Item Prio Diff
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----------------------------------------------------------------------------
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Namespaces 8 6
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STLization 10 8
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Making code exception-friendly 8 10
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Native RTTI 7 7
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TRUE/true 9 1
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C++ Features
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============
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- Namespaces:
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We want to have all wxWidgets identifiers in "wx" namespace but provide
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typedefs/#defines for backwards compatibility. This can be done easily
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for the classes and the only real problem are the enums as they would
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all have to be duplicated at both the global scope (with "wx" prefix) and
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in wx namespace (without it)
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- STLization
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This involves providing optional wxString implementation using std::string
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and doing the same for all our containers with the exception of wxHashMap
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which should simply be rewritten using templates (but keeping the old
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version for backwards compatibility -- ideally wx 3.0 would still be usable
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without templates, even if not all of its features would be available then)
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- Exceptions
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We are not going to use exceptions in wxWidgets itself but our code should
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become exception safe. This is a very difficult task as it means that no
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resource allocations (including memory, files, whatever) should be done
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without using a smart pointer-like object to store the result as it is the
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only way to prevent resource leaks in presence of exceptions
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- Real RTTI
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Optionally use the real RTTI instead of wx emulation of it. Keep the
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current stuff for backwards compatibility.
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- Complete replacing TRUE/FALSE with true/false
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Trivial
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Core
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====
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- use wxEventLoop in all builds
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wxApp and wxDialog should use wxEventLoop objects (the exact class can be
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customized by user code by overriding some wxApp::CreateEventLoop())
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instead of duplicating the same code
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- remove wxCOMPATIBILITY (1.X)
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At least WXWIN_COMPATIBILITY and maybe WXWIN_COMPATIBILITY_2 code should be
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removed from the library. wxDEPRECATED() should be used with everything
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inside WXWIN_COMPATIBILITY_2_2. The stuff inside WXWIN_COMPATIBILITY_2_4
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probably should not be deprecated (yet?) because this would give thousands
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of warnings for the existing code.
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- Modularization/Build System
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Candidates for components:
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+ contrib widgets (and maybe some of the ones currently in the core)
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+ wxHTML
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+ network stuff
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+ printing (?)
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+ ODBC classes
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+ ...
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- Project File Generation
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We need a (GUI) tool to generate the project/makefiles for all supported
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platforms/compilers. Not sure if it should be used for the library itself
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(would be nice to have something like "make menuconfig" for Linux kernel
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which allows you to navigate easily among all of the configure/setup.h
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options but there is a problem with distributing such tool as it can't be
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compiled by the user because it is needed before the library is built) but
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we definitely need it for the users makefiles.
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- Properties/Member-Metadata, 2-Step Init with virtual create
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- Tidy code and add comments to headers (possibly in
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Doxygen/Javadoc style)
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Documentation
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=============
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- The possibility of moving doc into header files with tool
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support.
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- Detailed review of doc accuracy.
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- wxDC : Precise definition of default/initial state.
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- wxDC : Pixelwise definition of operations (e.g. last point of a
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line not drawn).
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- Events:
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For all controls state clearly when calling a member function results in an
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event being generated and when it doesn't.
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- Update the coding standards guide
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wxEvents
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========
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- Change Idle Handling
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Current Implementation is using too many CPU cycles
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- Loose Coupling Event-Source Event-Sink
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kind of the NextStep/C# very performant coupling, exposing events via
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Metadata
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- Add Lazy Init of Eventtables
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Modules/Plugins
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===============
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Architecture
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------------
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We aim to arrive at a lazy initialization of modules only when they are first
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needed. Dependency information between modules is needed. Dynamic Plug-In
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loading and unloading must be compatible with that.
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wxUniversal
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===========
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- Renderers within native ports.
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wxPrinting
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==========
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- Page preflighting capabilities in order to determine number
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of pages.
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- Preview UI enhancement.
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wxStaticBox
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===========
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Hide the platform problems (GTK: 'children' must be siblings) in encapsulation
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in order to avoid problems on ports where the hierarchy must be
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'correct'.
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Removal of old code
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===================
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In addition to wxCOMPATIBILITY code:
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- contrib/src/mmedia
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- contrib/src/applet?
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- Dialog Editor
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wxMiscellaneous
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===============
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- wxDC Support for point to char-position with text rendering
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- wxLocale Extension (eg Currency)
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- wxStreams review
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- wxURL?
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- a way to tell wxWidgets to check for any non-portable usage,
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for a given set of platforms. Sometimes you want to be able
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to get away with non-portable usage, and sometimes not.
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This is probably way too time-consuming to implement.
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- In headers, don't silently omit contents if the features for this
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header is switched off. Instead, emit an error message.
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- Implement native tree view and colour dialog in wxGTK.
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- Better way to specify About, Preferences menu ids under wxMac.
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- Must be able to portably specify relaying out a frame after the toolbar
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has been destroyed or recreated. On wxMSW, this is done in
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~wxToolBar. On wxGTK, in SetToolBar. In wxMac, not at all,
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but sending a wxSizeEvent will do it.
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- Need wxRect wxToolBar::GetToolRect(int id) or similar so we can
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align a popup menu with a toolbar button.
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- wxMac font selector dialog is the generic font selector -
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horrible.
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- No Append(wxArrayString&) for wxChoice and wxComboBox in wxGTK.
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Probably other functions too. Consider adding Insert to
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these classes, as per the patch on SF.
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- Rewrite wxFileHistory using wxString and wxArrayString, and
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put in separate file.
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- Add wxArrayString methods to wxTextValidator and any other
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class that needs them.
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- Add wxNotebook::GetTabRect or similar so we can estimate
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page size better in wxNotebookBase::CalcSizeFromPage.
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- Add function to clear all wxNotebook tabs without
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destroying the pages.
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- Add individual setters to wxScrollBar and other classes
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that use a combined setter.
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- Remove traces of old resource system from wxWizard.
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- Have wxDirCtrl as alias for wxGenericDirCtrl.
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- Allow instant reaction to left-up in a wxGrid cell
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(extend editor API) to work around bad checkbox
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behaviour (click, click, click, click away...) and
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reduce checkbox size on non-Windows platforms.
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- Add wxNotebook::HitTest for non-Windows platforms.
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- Implement rebar for all platforms. This will help us
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get closer to native look and feel, e.g. the gradient
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shadow on XP toolbars.
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Version: $Id$
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