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wxDC scaling fix patch (Derry Bryson)

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git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@9240 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Vadim Zeitlin 2001-01-31 15:57:09 +00:00
parent 8a16a98e59
commit ce83033f35
5 changed files with 326 additions and 211 deletions
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513
docs/gtk/changes.txt
View File

@ -1,8 +1,120 @@
This file contains the detailed log of wxGTK-specific changes, please see
doc/changes.txt for the concise log of important changes in all wxWindows
ports.
22nd July 2000: wxWindows 2.2.1 released
*** wxWindows 2.3.0 ***
scaling for map modes other than wxMM_TEXT works correctly (Derry Bryson)
*** wxWindows 2.2.6 ***
wxGauge now supports wxGA_VERTICAL (Shane Forsythe)
*** 29th January 2001: wxWindows 2.2.5 released ***
Synchronized with wxMSW 2.2.5, include macros
for upwards 2.4.0 compatibility.
Added missing wxEntry prototype to wx/gtk/app.h.
Fixed compilation with --enable-no_rtti/no_exceptions
with older egcs.
*** 15th January 2001: wxWindows 2.2.4 released ***
Corrected wxYield() to handle recursive calls
more gracefully (and with a warning in debug mode).
This fixes a problem with crashing wxTreeCtrl's
built-in drag'n'drop and probably some other as
well.
Corrected wxMenuItem::GetLabel() to handle deliberate '_'
characters correctly.
Patch for better 8-bit-display support.
Corrected log error message box.
Implememted wxCommandEvent::IsSelection() for wxListBox.
Corrected wxListBox::Set() for sorted mode.
Added EVT_TEXT_UPDATED for spin ctrl.
Corrected wrongly rounded value in slider and scrollbar
for negative values.
Small fix for wxTextFile type guessing.
Translation updates.
Various other fixes.
Synchronized release with wxMSW again.
*** 3rd November: wxWindows 2.2.3 released ***
Fixed bugs in HTTP code.
Implemented wxNO_FULL_REPAINT_ON_RESIZE whenever possible
and reduced flicker a little (no longer diables GTK's own
anti-flicker code).
Always have a clipping region equivalent to the update
region in OnPaint events (such as under wxMSW and wxMac).
Implemented wxListBox::SetFirstItem().
Fixed some minor problems in HTML code, wxListCtrl,
wxListBox.
Fixed compilation on RedHat 7.0.
Updated many translations, added Swedish.
Changed default screenpixels-per-inch from 100 to 75 in
printing code.
Updated AFM font metrics for Ghostscript fonts and let
Linux and FreeBSD default to using GS fonts (and not
Adobe fonts).
*** 20th September: wxWindows 2.2.2 released ***
Fixed wxSizer bug that made items with option
flags greater than 1 report a wrong size.
Fixed many incompatibilties with GTK themes -
essentially a backport from the 2.3 branch.
Added missing wxImage::Paste() for transparent
images.
Fixed a drawing error for ellipses and arc in both
the DC code and the PostScript code.
Fixed wxListCtrl::HitTest() for report mode.
Other minor fixes.
*** 20th August 2000: wxWindows 2.2.1 released ***
Minor build fixes.
Use the wxCommmandEvent::IsChecked() function for checkable
menu items. This mean that the m_int parameter no longer
contains the ID of the menu!
Fixed major problems in ODBC logging code. This change is
binary backward incompatible.
Fixed reentry problems in DnD code.
Changed PostScript code so that it can handle a higher
resolution (720dpi).
Minor improvements to wxGrid code.
Corrected guffow-scrolling so that no surplus expose
events are generated.
@ -12,45 +124,44 @@ Minor correction to wxDC::DrawRoundedRectangle.
Added support for <INSERT> and <DELETE> menu accelerators.
Use the wxCommmandEvent::IsChecked() function for checkable
menu items.
Made wxComboBox case-sensitive.
Minor correction to doc-view architecture.
10th July 2000: wxWindows 2.2.0 released
Minor wxCommandLineParser changes.
*** 10th July 2000: wxWindows 2.2.0 released ***
Added code for writing BMP images.
Added code for writing TIFF images.
Fixed problem with best visuals (on SGI)
Applied a number of compile fixes for various Unix variants.
Fixed wrong background colours appearing sometimes and fix
for resetting the default font in controls.
Speed-up to wxListCtrl.
Fixed bug wxTextStream::ReadLine()
Various improvements commandline parser.
Changed wxColour unequal operator to compare colours.
Fixed wxMenuBar::Replace bug.
Added new position to slider update event.
Minor fix to idle handling (now wxGTK events come after all GTK events).
Various fixes to the new wxGrid class.
Bug-fixes.
4th June 2000: wxWindows pre-2.2 release
*** 4th June 2000: wxWindows pre-2.2 release ***
Complete freeze now. Only vital bug-fixes allowed.
@ -62,15 +173,15 @@ Reworked wxURL.
MANY bugfixes.
22th March 2000: wxWindows 2.1.15 released
*** 22th March 2000: wxWindows 2.1.15 released ***
Build fix. RPMs no loner require GTK's include files.
An extra library for the OpenGl class now gets builts
19th March 2000: wxWindows 2.1.14 released
*** 19th March 2000: wxWindows 2.1.14 released ***
An extra library for the OpenGl class now gets builts
and installed. There is also an extra RPM for this
and installed. There is also an extra RPM for this
small class now.
Added possibility to compile wxGTK with already installed
@ -128,7 +239,7 @@ style when using the default.
The L-GPL iODBC library must now be enables explicitly so as
to not mislead people into reading the license wrong.
24th January '2000: wxWindows 2.1.13 released
*** 24th January '2000: wxWindows 2.1.13 released ***
Corrections to TAB handling in notebooks.
@ -173,9 +284,9 @@ Updates to the ODBC classes (George Tasker).
Build-fixes for various platforms and compilers.
6th January '2000: wxWindows 2.1.12 released
*** 6th January '2000: wxWindows 2.1.12 released ***
Who has a BigEndian computer (e.g. Sparc or PowerPC) that runs a 15
Who has a BigEndian computer (e.g. Sparc or PowerPC) that runs a 15
and/or 16 bit colour mode? I need this for testing purposes, i.e. this
person could help me by running a small testprogram and sending
me the output.
@ -264,7 +375,7 @@ Fixed several problems with buffered streams. Added support for
setting the end-of-line mode (Mac,DOS,Unix) in wxTextOutputStream.
Added code to send events from one thread to another and added
function to wake up idle system (needed for sending inter-thread
function to wake up idle system (needed for sending inter-thread
events).
Corrected wrongly set flag in dialogs which broke its tab code.
@ -284,7 +395,7 @@ More minor changes and fixes.
Began work on a new dialog and resource editor (wxDesigner).
7st November '99: wxWindows 2.1.11 released
*** 7st November '99: wxWindows 2.1.11 released ***
There is still an unresolved problem with bitmap to image
conversion on big-endian architectures (such as Solaris),
@ -298,8 +409,8 @@ release will be called wxWindows 2.2.X, development snapshots
will be called 2.1.X.
A lot of discussion has been wasted on how to maintain a
once released stable version. It was almost universally
agreed that only a commercial entity will have the motivation
once released stable version. It was almost universally
agreed that only a commercial entity will have the motivation
($$$) to do that - so far there is no wxWindows Inc.
Support for GTK 1.0 has been dropped. This version has
@ -310,8 +421,8 @@ Rewritten the support for multiple-format Drag'n'Drop and
clipboard under both GTK and MSW. There are probably some
problems here and there left.
wxListBox and wxChoice can now handle only either void
client data (which it will not delete on destruction) or
wxListBox and wxChoice can now handle only either void
client data (which it will not delete on destruction) or
client data of the wxClientData type (which it will delete),
instead of both at the same time. The same will happen
to wxComboBox some time. Also, wxListBox can now sort its
@ -405,7 +516,7 @@ Made default button action work in more cases.
As the old makefile system didn't work, I trashed it and wrote
a new one - mo more GNU. This, of course, caused a lot of people
to start sing their song of complaints - any change is a good
to start sing their song of complaints - any change is a good
opportunity to complain, but the effect of the change is that
we now have shared library support on Linux and Solaris (and
probably others as well) and that the Linux shared library no
@ -468,7 +579,7 @@ A few more minor fixes.
6th August '99: Eight wxGTK 2.1 snapshot released
The new makefile system is not able to produce shared libraries
The new makefile system is not able to produce shared libraries
on Unix with the exception of Linux - libtool is really great.
Therefore, the build system defaults to static libraries on
anything but Linux for now.
@ -531,8 +642,8 @@ Some more corrections I forgot.
New wxPython (includes new layout system and printing).
15th June '99: Sixth wxGTK 2.1 snapshot released
The biggest change is the completely rewritten configure/makefile
system using automake. The main argument for switching to automake
is that the resulting makefiles should be more portable so that
@ -542,69 +653,69 @@ shared-only compilation, can be invoked from any directory for
concurrent builds wihtin one source tree, uses libtool for greater
shared-library platform support, has a functinonal "make uninstall",
works with GTK, Motif and WINE, conforms better to GNU standards
as far as configure option names are concerned and is easier to
as far as configure option names are concerned and is easier to
maintain.
Applied patches to compile wxGTK on OS/2.
Configure checks for byte-order and new defines for byte swapping
with respect to the byte-order. Added test for this to typetest sample.
Also made BMP handler bigendian safe so that it should work on
Solaris and such.
Small changes to basic drawing stuff: made wxColour actually compare
Also made BMP handler bigendian safe so that it should work on
Solaris and such.
Small changes to basic drawing stuff: made wxColour actually compare
RGB values in the == operator, added new constructor to wxMask,
corrected initial background colour for DCs, it is now possible
to use a wxWindowDC etc before there is any window (this doesn't
make any sense, but it is what wxMSW does.)
Added support for the PRIMARY SELECTION to the wxClipboard
class.
Fixed redraw bug when scrolling window-less widgets out
of the visible area (actually a work-around for a GTK bug).
Regrouped some samples, created new one for various versions
of the wxTextCtrl.
Added wxWindow::Reparent() and wxFrame::MakeModal().
Improved handling of column width in wxListCtrl and made
this more compatible with the wxMSW version. Also removed
a bug from the wxImageList returning an off-by-one id for
added images.
Fixed keyboard hotkeys and resizing for wxMDIChildFrame
menu bars.
Added flag to wxSplitterWindow to update its children's
sizes "live" instead of moving a XOR'ed bar around - this
is a resource-draining option. Also corrected cursors
in splitter window.
New way to show "disabled" or greyed toolbar items.
Rewrote parts of the tree ctrl to allow multiple selections
and variable size items (Sylvain). These new function do not
exist in the native Win32 tree control.
Implemented global cursors and wxBusyCursor etc. Also removed
another cursor misbehaviour.
Updated many parts of the documentation to reflect changes
in wxWindows 2.1, wxPython and more exact description of
cross-platform issues as well as platform differences.
Many other fixes, mainly by others...
Further compile fixes for different architectures.
25th May '99: Fifth wxGTK 2.1 snapshot released
This is mostly a bug-fix release. We are having funny
times to make wxGTK work well with different micro
versions of GTK 1.2 - which is very close to impossible.
@ -613,165 +724,165 @@ vary a lot. I use GTK 1.2.3 and only get wanrnings in
one sample (notebook) and that one is due to a bug in
GTK - some people using GTK 1.2.2 reported hundreds of warnings
getting spitted out for what seems like no reason.
This snapshot contains the beginnings of our merging of
headers, meaning that in the future all ports will
use the same headers and will share a lot more code.
We have taken this moment to reorganize some code and
hope to have eliminated much bad C++ code, as reported
primarily by SGI's compilers (Vadim Zeitlin).
Rewritten char and key event propagation routines
to reflect documentation and do the same on wxGTK
as on wxMSW. If you are interested in ascii chars
and cursor key etc, intercept EVT_CHAR, if you
and cursor key etc, intercept EVT_CHAR, if you
are interested in which key actually got pressed,
intercept EVT_KEYDOWN (Norbert Irmer).
Control that are given -1 as their ID no longer
get arbitrary positive IDs assigned but arbitrary
negative IDs. This had caused some trouble with ID clashes.
wxWindow and wxScrolledWindow no longer use the
wxScrollEvent, but the newly invented wxScrollWinEvent
so that no mixing up of events sent from wxSliders
or wxScrollbars placed in a wxWindow can occur.
Added wxProgressDialog for use with long background
work such as printing.
Added drawing sample and scrolling sample, both of
which show some misbehaviours...
When drawing with the wxXOR logical mode, wxGTK now uses
GdkXOR (instead of GdkInvert) and when drawing in wxINVERT logical
mode, wxGTK now uses GdkInvert (as before). When you did some
rubberband dragging and you used wxXOR and a black pen, then
you should change wxINVERT.
Applied more patches for SGI and HP-UX compilation.
More updates for wxSockets (Guilhem Lavaux). Seems to be nearly
finished.
You can now use threads within your GUI again. Well,
at least if you know what you are doing and you had a look
You can now use threads within your GUI again. Well,
at least if you know what you are doing and you had a look
at the threads sample.
wxGLCanvas updated so that it can share display lists
over several windows and to not exhibit any flicker.
over several windows and to not exhibit any flicker.
(Norber Irmer).
wxNotebook revamped so that its process of creation matches
wxMSW's more closely, also avoiding problems with wrong page
number. Added InsertPage() and the possibility to prevent
switching pages by intercepting the PAGE_CHANGING event. Also,
wxNotebooks now get shown even if all pages are empty.
Added Activate() to wxMDIChildFrame (Russel).
Improved wxSplitterWindow behaviour and visual feed-back when
given a minimal size etc (Bruce DeVisser).
Minor updates to wxTreeCtrl, wxListBox, printing, wxClipboard,
wxString, wxThreads and many others.
Also wxMSW got a big face-lift, not to mention the new wxMac release...
11th May '99: Fourth wxGTK 2.1 snapshot released
This is mostly a bug-fix release. This affects wxSocket, wxThread,
and a few GUI classes. Also more work has been done and window
placement and decorations etc. which we hope to have finished now.
Applied patches for FreeBSD and SGI compilation (not yet finshed).
Updated wxPython to beta 9.
Made wxGLCanvas work again - strangely it flickers now...
wxStaticText is currently broken with GTK 1.2.2 (which I don't
yet have and thus could not fix). Also, scrolling subwindows
(although much improved including a sample) doesn't work perfectly
due to a bug in GTK 1.2.1 (probably 1.2.2 as well).
Added wxStaticLine.
Note that the next release might bring about changes to keyboard
handling and scroll event intercepting from wxScrolledWindow.
By and large much of the code has stabilized and won't be much
different in the final wxWindows 2.1 release. Please test as
much as you can.
The next release will have a new build system.
Added wxStaticLine.
Note that the next release might bring about changes to keyboard
handling and scroll event intercepting from wxScrolledWindow.
By and large much of the code has stabilized and won't be much
*** different in the final wxWindows 2.1 release. Please test as ***
much as you can.
The next release will have a new build system.
3rd May '99: Third wxGTK 2.1 snapshot released
Updated INSTALL.txt and SYMBOLS.txt.
Support for Unicode is now almost complete. Most samples work in
both Unicode and non-Unicode mode. Thanks to Ove Kaaven and Vadim.
Internal changes required for wxOLE and addition of a very experimental
wxOLE code section using GNOME's Bonobo library (from GNOME's CVS).
New version of wxPython that works with the wxGTK 2.1.
This now includes a very comprensive test/demo suite. Thanks to
Robin Dunn, Harm v.d. Heijden and others. Beware of the hang-man...
More fine tuning of focus handling and GUI widgets.
Complete rewrite of wxSocket classes (still experimental).
Thanks to Guilhem Lavaux.
wxMenuBar supports underlined shortcuts like Windows does,
indicated by a leading & character. wxMenus now have hotkeys
such as in wxXt and wxMSW.
Rewritten MDI subsystem.
Correcetions and additions to the printing framework including
a paper type database (Julian).
Several controls now support more style flags for modifying
look (and feel) of the controls and windows.
New implementation of idle handlers, which now send an idle
event only once after the event queue has been emptied (which
is what happens in the wxMSW port as well), not regularly.
This no longer forces wxGTK applications to sleep (by having
to call usleep()) in idle time - giving more CPU slices to
the application if desired.
wxGLCanvas (the OpenGl for wxWindows) now accepts keyboard input.
The usual number of compile and bug fixes from all involved.
wxGLCanvas (the OpenGl for wxWindows) now accepts keyboard input.
The usual number of compile and bug fixes from all involved.
21st April '99: Second wxGTK 2.1 snapshot released
Added much code for Unicode support. Still experimental, but looks very
cool - thanks to Ove Kaaven and Vadim Zeitlin. If you are very brave, then
you can compile wxGTK with "configure --with-unicode".
More updates on the dreaded issue of making frames and dialogs impossible
to resize etc.
Drag and Drop works now under GTK 1.2 - at least basically when dragging
and dropping text. The API is not entirely fixed yet but seems quite
good now. Support for different actions (copy/move/link/..) still missing.
I also removed support for GTK 1.0 Drag and Drop - this is just broken
and unusable in GTK 1.0 and I don't want to fix it.
I now embed the JPEG library and handlers for JPEG and GIF have been
added to the existing PNG and BMP (and XPM for GTK version only). In
the future, the RPMs will not contain these libraries but depend on
@ -780,211 +891,211 @@ ship with everything that is needed for wxGTK so that no downloading
of ten image libs will be required - also avoiding problems with ten
different kinds of libJPEG-6.0.1.7.IV beta 7. We also updated the
PNG code to the newest PNG version.
wxImage now makes use of the fast rendering code as provided by
GTK 1.2 whenever possible. This should mean a speed-up for graphics
heavy apps.
Many fixes all over. Also should compile with GTK 1.2.0 as opposed
to only with GTK 1.2.1 now.
wxPython still doesn't compile, I think.
wxPython still doesn't compile, I think.
12th April '99: First wxGTK 2.1 snapshot released
This is the first developers' version of wxWindows 2.1 for GTK. It's main
new feature is that it supports GTK 1.2 (as opposed to GTK 1.0) which
will make development within the GNOME evironment a lot easier.
Apart from the move to GTK 1.2 and the changes (some major) that were
required as part of that work, enhancement or corrections have been
made to many of the non-GUI classes and functions (such as wxClipboard,
made to many of the non-GUI classes and functions (such as wxClipboard,
wxThread, wxSocket, wxConfig)
and a few GUI classes (accelerators in menus, listbox always with
scrollbar, wxFrame honours Motif Window Manager hints, corrected tab
traversal for broken GTK 1.0 widgets).
There have been slight changes to the priting dialogs and their
setup data (which might break apps using this code in previous
versions). Also, a bug concerning printing white has been fixed
(actually not tested).
Although this is only the first 2.1 snapshot, there is little reason not
to use it as many bugs from version 2.0 have been corrected. There are,
pf course, still a few problem left with GTK 1.2 (some of which relate
to bugs in GTK).
I think I preserved backward compatility with GTK 1.0 and if not it
should be easy to fix - but mostly I don't care.
Drag'N'Drop is currently completely broken. Also, wxPython currently
doesn't compile with this release. The OpenGL canvas still seems to
work.
Major targets for the final release (still a long way): a new configure
system, support JPEG and GIF formats, wxHTML, super-duppah frame layout
stuff, syntax-highlighting editor, possibly Unicode, possibly some GNOME
stuff, syntax-highlighting editor, possibly Unicode, possibly some GNOME
gooddies, possibly world domination.
5th March '99: wxWindows 2.0 released
*** 5th March '99: wxWindows 2.0 released ***
This is the final version of wxWindows 2.0 for GTK. The versions for
Windows and Motif (and also this version) are available form Julian Smart's
site. The Mac version is still under development.
19th February '99: wxWindows 2.0 beta 5
*** 19th February '99: wxWindows 2.0 beta 5 ***
This is the fifth beta release and it contains mostly bug fixes and
updates for documentation.
Applied compile fixes for Solaris (different flavours and compilers).
12th February '99: wxWindows 2.0 beta 4
Applied compile fixes for Solaris (different flavours and compilers).
*** 12th February '99: wxWindows 2.0 beta 4 ***
This is the fourth beta release and it contains mostly bug fixes and
updates for documentation.
Tracked a few more cases, where the bahaviour between wxMSW and wxGTK
differed. This was the case for closing a dialog or frame as well as
for clearing a device context or setting its background colour and some
other minor details.
Most standard dialogs have been face-liftet a little.
Implememted default buttons for GTK.
Fixed many bugs. You guessed it.
29th January '99: wxWindows 2.0 beta 3
This is the third beta release and it contains mostly bug fixes.
Most standard dialogs have been face-liftet a little.
Implememted default buttons for GTK.
Fixed many bugs. You guessed it.
*** 29th January '99: wxWindows 2.0 beta 3 ***
This is the third beta release and it contains mostly bug fixes.
There is one field where we haven't been able to fix the API yet, and that
it Drag'n'Drop. This is mostly due to the fact that DnD in
GTK 1.0 is hardly usable and much different from GTK 1.2 which means that
we have to design a common API for Windows, GTK 1.0 and GTK 1.2. Although
we are trying to prevent that, it is possible that wxWindows 2.0 (being
based on GTK 1.0) will not have proper DnD support.
The major changes are that tool tips have been added, threads have been completely
rewritten, the ODBC code has been updated and improved, the socket code works
The major changes are that tool tips have been added, threads have been completely
rewritten, the ODBC code has been updated and improved, the socket code works
better now.
Classes for managing MIME-types under Windows and Unix have been added.
There is now a wxGLCanvas class for OpenGl/Mesa for the Windows, GTK and
Motif ports. Come see the penguins flying...
Documentation has received a big face lift - it now covers nearly all the
classes, at least.
The usual amount of bug fixes. Countless.
A few member functions of wxString have been renamed.
For those who are using the ever-so-popular wxImage class (which
now available on Motif and Windows as well) in 8-bit mode: wxGTK
now creates a color cube upon start-up in 8-bit mode and thus the
generation of bitmaps from images has been speeded up 20 times.
It is now possible to develop with wxGTK without having the GTK 1.0 header
files installed so that having the GTK 1.2 header files installed no longer
is any problem. We also provide RPMs for RedHat glibc 2 based systems, compiled
with egcs 1.1.1 on SuSE 6.0. Note that the RPM will not work in
SuSE 6.0 as SuSE decided to ship 6.0 with a broken GTK+ package.
6th January '99: wxWindows 2.0 beta 2
*** 6th January '99: wxWindows 2.0 beta 2 ***
This is the second beta release and contains it mostly build and
bug fixes. Threads work well now on (up-to-date) glibc 2 systems,
commercial Unices and Windows.
20th December '98: wxWindows 2.0 beta 1
*** 20th December '98: wxWindows 2.0 beta 1 ***
This is the first beta release and we have used the time before
this release to tidy up some parts of the API. All releases from
now on will be source code compatible but we reserve binary compatibility
for the final release. Because of this, the actual library name of
the beta version will not be 2.0 but 1.99, so that we prevent
the beta version will not be 2.0 but 1.99, so that we prevent
conflicts with the final library later on. After the final release
we'll only fix bugs so that there will be no reason to link any
program statically with wxGTK.
We changed the name of the shared library to include the version of
the GTK used so that no conflicts emerge with simultaneous
versions of wxWindows for GTK 1.0 and for GTK 1.2 and so on.
As you can see, we have not moved to GTK 1.1.X as the different
development versions are too different and buggy to be useful. We'll
wait for a stable GTK 1.2 release (hardly 1.2.0) and start porting
then.
wxGTK now compiles without problems on anything between gcc 2.7.2 on
Linux-x86 and egcs 1.1 on Linux-Alpha and egcs 1.0 on Sparc. This isn't
as easy as it sounds...
Available form this site are the Python bindings of wxWindows.
Thanks to Robin Dunn for this tremendous contribution.
Tkinter is dead, Java is dead, wxPython rules! That's all there is to say.
Although only a few new classes have been added, many have been polished
up substantially, the most visible are wxListCtrl, wxTreeCtrl and
all classes related to printing. Also the DialogEd now functions
much better than before. Drag'n'Drop is fucntional but probably won't
much better than before. Drag'n'Drop is fucntional but probably won't
be perfect until we use GTK 1.2 and its much improved DnD features.
wxClipboard has arrived and works for text. Other formats have not been
tested carefully yet.
wxMiniFrame has been added which might be useful for docking toolbars
etc. Someone has already done that for the MSW port and we hope to
include his very nice work later.
wxDirDialog has been added (thanks to Harm von der Heijden).
The entite "tab traveral" system for moving from item to item in
a dialog has been rewritten. It now completely overrides the
not-so-well-done GTK native tab system.
Quite much has been done to improve the wxImage class, which is now
available in the Windows port as well. Very useful for anything related
to image processing. wxGTK also uses this class internally e.g. to scale
bitmaps when the scale factor (e.g. zooming) of a drawing context
has changed.
Some of the small and handy classes (wxDate, wxTime, wxVariant) have
received a face-lift. wxList has been rewritten to make it possible
to write type-safe lists. The collection of utility functions (wxFileFind etc)
has been revamped and cleaned-up (thanks to Vadim Zeitlin, who has also
greatly enhanced many basic classes, ranging wxString to the debug and
log system).
We removed some constructors of GDI classes (such as wxPen, wxColour)
which took a pointer as a parameter. This lead to many errors among users
resulting in unexpected behaviour so it was decided to remove these
constructors.
As the number of users and the number of test programs and samples
is steadialy rising the core classes of wxWindows for MSW and GTK 1.0
can be considered to be very stable if not outright bug-free. I haven't

10
src/gtk/dc.cpp
View File

@ -38,8 +38,10 @@ wxDC::wxDC()
{
m_ok = FALSE;
m_mm_to_pix_x = 1.0;
m_mm_to_pix_y = 1.0;
m_mm_to_pix_x = (double)wxGetDisplaySize().GetWidth() /
(double)wxGetDisplaySizeMM().GetWidth();
m_mm_to_pix_y = (double)wxGetDisplaySize().GetHeight() /
(double)wxGetDisplaySizeMM().GetHeight();
m_needComputeScaleX = FALSE; /* not used yet */
m_needComputeScaleY = FALSE; /* not used yet */
@ -74,8 +76,8 @@ void wxDC::DoGetSizeMM( int* width, int* height ) const
int w = 0;
int h = 0;
GetSize( &w, &h );
if (width) *width = int( double(w) / (m_scaleX*m_mm_to_pix_x) );
if (height) *height = int( double(h) / (m_scaleY*m_mm_to_pix_y) );
if (width) *width = int( double(w) / (m_userScaleX*m_mm_to_pix_x) );
if (height) *height = int( double(h) / (m_userScaleY*m_mm_to_pix_y) );
}
// Resolution in pixels per logical inch

2
src/gtk/dcclient.cpp
View File

@ -2041,7 +2041,7 @@ void wxWindowDC::ComputeScaleAndOrigin()
// Resolution in pixels per logical inch
wxSize wxWindowDC::GetPPI() const
{
return wxSize(100, 100);
return wxSize(m_mm_to_pix_x * 25.4 + 0.5, m_mm_to_pix_y * 25.4 + 0.5);
}
int wxWindowDC::GetDepth() const

10
src/gtk1/dc.cpp
View File

@ -38,8 +38,10 @@ wxDC::wxDC()
{
m_ok = FALSE;
m_mm_to_pix_x = 1.0;
m_mm_to_pix_y = 1.0;
m_mm_to_pix_x = (double)wxGetDisplaySize().GetWidth() /
(double)wxGetDisplaySizeMM().GetWidth();
m_mm_to_pix_y = (double)wxGetDisplaySize().GetHeight() /
(double)wxGetDisplaySizeMM().GetHeight();
m_needComputeScaleX = FALSE; /* not used yet */
m_needComputeScaleY = FALSE; /* not used yet */
@ -74,8 +76,8 @@ void wxDC::DoGetSizeMM( int* width, int* height ) const
int w = 0;
int h = 0;
GetSize( &w, &h );
if (width) *width = int( double(w) / (m_scaleX*m_mm_to_pix_x) );
if (height) *height = int( double(h) / (m_scaleY*m_mm_to_pix_y) );
if (width) *width = int( double(w) / (m_userScaleX*m_mm_to_pix_x) );
if (height) *height = int( double(h) / (m_userScaleY*m_mm_to_pix_y) );
}
// Resolution in pixels per logical inch

2
src/gtk1/dcclient.cpp
View File

@ -2041,7 +2041,7 @@ void wxWindowDC::ComputeScaleAndOrigin()
// Resolution in pixels per logical inch
wxSize wxWindowDC::GetPPI() const
{
return wxSize(100, 100);
return wxSize(m_mm_to_pix_x * 25.4 + 0.5, m_mm_to_pix_y * 25.4 + 0.5);
}
int wxWindowDC::GetDepth() const