Re: Getting GTK/W32 applications to run
Hello!
Thank you for your elaborate diagnosis. This is probably related to the
problem Mono has on Wine because it also uses Pango/GTK.
It seems as if this is not a problem with GTK or Pango but with cairo. GTK-2.6
(without cairo) works fine on wine.
Here is a minimal cairo-win32 example basing uppon code from Owen Taylor:
/*
* This example code is placed in the public domain
*
* Author: Owen Taylor [EMAIL PROTECTED], Red Hat Inc.
*/
#include cairo-win32.h
#define TITLE TEXT(Cairo test)
#define BORDER_WIDTH 75.
#define SNIPPET_WIDTH 300.
#define SNIPPET_HEIGHT 300.
#define FONT_SIZE 24
static void
on_paint (HDC hdc)
{
cairo_surface_t *surface;
cairo_t *cr;
double line_width;
cairo_font_extents_t font_extents;
surface = cairo_win32_surface_create (hdc);
cr = cairo_create (surface);
line_width = cairo_get_line_width (cr);
/* Draw a box bordering the snippet */
cairo_rectangle (cr,
BORDER_WIDTH - line_width / 2, BORDER_WIDTH - line_width /
2,
SNIPPET_WIDTH + line_width, SNIPPET_WIDTH + line_width);
cairo_stroke (cr);
/* And some text */
cairo_select_font_face (cr, Arial, CAIRO_FONT_SLANT_NORMAL,
CAIRO_FONT_WEIGHT_BOLD);
cairo_set_font_size (cr, FONT_SIZE);
cairo_font_extents (cr, font_extents);
cairo_move_to (cr,
BORDER_WIDTH,
BORDER_WIDTH + SNIPPET_WIDTH + font_extents.ascent);
cairo_show_text (cr, This is some example text!);
cairo_destroy (cr);
cairo_surface_destroy (surface);
}
/* The WinMain and window procedure are loosely based on a example
* from the Microsoft documentation.
*/
LRESULT CALLBACK
WndProc (HWND window,
UINT message,
WPARAM wParam,
LPARAM lParam)
{
PAINTSTRUCT paint_struct;
HDC dc;
switch(message) {
case WM_CHAR:
switch (wParam) {
case 'q':
case 'Q':
PostQuitMessage (0);
return 0;
break;
}
break;
case WM_PAINT:
dc = BeginPaint (window, paint_struct);
on_paint (dc);
EndPaint (window, paint_struct);
return 0;
case WM_DESTROY:
PostQuitMessage (0);
return 0;
default:
;
}
return DefWindowProc (window, message, wParam, lParam);
}
#define WINDOW_STYLE WS_OVERLAPPEDWINDOW ~(WS_MAXIMIZEBOX | WS_THICKFRAME)
INT WINAPI
WinMain (HINSTANCE hInstance,
HINSTANCE hPrevInstance,
PSTR lpCmdLine,
INT iCmdShow)
{
HWND window;
MSG message;
WNDCLASS window_class;
RECT rect;
window_class.style = CS_HREDRAW | CS_VREDRAW;
window_class.lpfnWndProc = WndProc;
window_class.cbClsExtra = 0;
window_class.cbWndExtra = 0;
window_class.hInstance = hInstance;
window_class.hIcon = LoadIcon (NULL, IDI_APPLICATION);
window_class.hCursor = LoadCursor (NULL, IDC_ARROW);
window_class.hbrBackground = (HBRUSH)GetStockObject (WHITE_BRUSH);
window_class.lpszMenuName = NULL;
window_class.lpszClassName = TITLE;
RegisterClass (window_class);
/* Compute the window size to give us the desired client area */
rect.left = 0;
rect.top = 0;
rect.right = SNIPPET_WIDTH + 2 * BORDER_WIDTH;
rect.bottom = SNIPPET_WIDTH + 2 * BORDER_WIDTH;
AdjustWindowRect (rect, WINDOW_STYLE, FALSE /* no menu */);
window = CreateWindow (TITLE, /* Class name */
TITLE, /* Window name */
WINDOW_STYLE,
CW_USEDEFAULT, CW_USEDEFAULT, /* initial position */
rect.right - rect.left, rect.bottom - rect.top, /*
initial size */
NULL,/* Parent */
NULL,/* Menu */
hInstance,
NULL); /* WM_CREATE lpParam */
ShowWindow (window, iCmdShow);
UpdateWindow (window);
while (GetMessage (message, NULL, 0, 0)) {
TranslateMessage (message);
DispatchMessage (message);
}
return message.wParam;
}
//
The font output isn't corrent -- see [1] and [2] as reference.
[1] http://gordon.cip.physik.uni-saarland.de/~oleid/cairo-wine.png
[2] http://gordon.cip.physik.uni-saarland.de/~oleid/cairo-win32.png
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Re: Getting GTK/W32 applications to run
Replying to myself: --- opened bug 7186 --- http://bugs.winehq.org/show_bug.cgi?id=7186 pgp62R01jW7O7.pgp Description: PGP signature
Re: Getting GTK/W32 applications to run
On Sunday 14 January 2007 22:30, Peter Gerwinski wrote: Since both WINE and pango/GTK are free software, I am confident that these problems will be solved in the long run. I hope that you can use my observations. Thank you for your elaborate diagnosis. This is probably related to the problem Mono has on Wine because it also uses Pango/GTK. Does it help if you install MS core fonts? http://sourceforge.net/project/showfiles.php?group_id=34153package_id=56408 It would be good if you could put your findings in a bug in Bugzilla (there may already exist a bug for this, otherwise you can open a new one). -Hans
Re: Getting GTK/W32 applications to run
Hallo, Hans! You wrote: Thank you for your elaborate diagnosis. This is probably related to the problem Mono has on Wine because it also uses Pango/GTK. Does it help if you install MS core fonts? I tried, but it did not help. Cheers, Peter -- Dr. rer. nat. Peter Gerwinski - http://www.peter.gerwinski.de German pages for GNU free software - http://www.gnu.de G-N-U GmbH - EDV-Dienstleistungen - http://www.g-n-u.de Essener Linux User Group - http://www.elug.de
Getting GTK/W32 applications to run
Hello, WINE developers!
While working on a cross-platform project, I tried to run some
self-compiled GTK/W32 applications on a Debian GNU/Linux Sarge
system using WINE 0.9.29, compiled from source. They crashed
immediately.
After some long, but unsuccessful Google sessions and some long, but
successful RTFS/debugging sessions, I am now able to run and test my
cross-compiled GTK/W32 applications in WINE. :-)
Furthermore, I can start the W32 version of The GIMP up to the
moment where it tries to load its plug-ins. (Without the plug-ins,
the remaining parts of The GIMP even seem to work flawlessly.)
Since Google told me that running GTK/W32 applications in WiNE
- in particular: The GIMP - was an unsolved problem, I am hereby
telling you what I observed and what I did.
* Out of the box, pango (GTK's font renderer) does not find any
suitable font.
OTOH a non-GTK program, opening a MessageBox, works flawlessly,
so the fonts are there.
* When I tell pango to use a TrueType font *and* place the .ttf
file in c:/windows/fonts/, I can start GTK's Hello, world!
program, but the text is 300 pixels high, and thus unusable.
(Real-world programs used to crash with a message similar to
memory exhausted, but trying to reproduce the exact message now
results in *running* programs with a giant font. Sorry.)
I conclude that (at least in my installation) pango does not find
WINE's pixel fonts (even if I place them in c:/windows/fonts/),
and sees the TTFs only with a wrong scaling factor.
* When I tell pango to use the font Sans 0.1, I get satisfying
results.
(In concrete, I got it working with the following gtkrc:
style wine-default-style
{
font_name = Sans 0.1
}
widget * style wine-default-style
)
I cannot fine-tune the font size. Using Sans 0.2 or Sans 0.01
yields exactly the same as Sans 0.1. There seems to be one more
intermediate size at Sans 0.5; after that the normal font
sizes start with Sans 1.
Since both WINE and pango/GTK are free software, I am confident that
these problems will be solved in the long run. I hope that you can
use my observations.
BTW, let me thank you for over 10 years of WINE
by hacking Tom Payne's famous quote on Unix:
Ten years ago mainstream users were choosing WABI over WINE.
Now they are choosing $PROPRIETARY_FORK_OF_WINE over WINE.
What part of that message aren't they getting?
Keep on your excellent work!
Cheers,
Peter
--
Dr. rer. nat. Peter Gerwinski - http://www.peter.gerwinski.de
German pages for GNU free software - http://www.gnu.de
G-N-U GmbH - EDV-Dienstleistungen - http://www.g-n-u.de
Essener Linux User Group - http://www.elug.de
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