add screeninfo

This commit is contained in:
Dana Jansens 2002-12-20 23:19:07 +00:00
parent 7f111a94d0
commit e5c5b4bf70
6 changed files with 243 additions and 7 deletions

View file

@ -3,8 +3,8 @@ exec_prefix=$(prefix)
libdir=$(exec_prefix)/lib
targets = libotk.so libotk.a
sources = display.c
headers = display.h
sources = display.c screeninfo.c
headers = display.h screeninfo.h
CFLAGS+=-I/usr/gwar/include/python2.2

View file

@ -1,6 +1,8 @@
// -*- mode: C; indent-tabs-mode: nil; -*-
#include "../config.h"
#include "display.h"
#include "screeninfo.h"
#include <X11/keysym.h>
@ -118,7 +120,7 @@ line argument.\n\n"));
// Get information on all the screens which are available.
self->screenInfoList = PyList_New(ScreenCount(self->display));
for (i = 0; i < ScreenCount(self->display); ++i)
PyList_Append(self->screenInfoList, OtkScreenInfo_New(i));
PyList_SetItem(self->screenInfoList, i, OtkScreenInfo_New(i));
self->gccache = OtkGCCache_New(PyList_Size(self->screenInfoList));

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@ -5,10 +5,13 @@
#include <X11/Xlib.h>
#include <Python.h>
typedef OtkScreenInfo;
typedef OtkGCCache;
struct OtkScreenInfo;
struct OtkGCCache;
struct OtkDisplay;
typedef struct {
struct OtkDisplay *OBDisplay; // the global display XXX: move this to app.h and ob.h?
typedef struct OtkDisplay {
PyObject_HEAD
//! The X display
@ -41,7 +44,7 @@ typedef struct {
@see BImageControl
@see BTexture
*/
OtkGCCache *gccache;
struct OtkGCCache *gccache;
} OtkDisplay;
//! Creates a struct, opens the X display

5
otk_c/rect.h Normal file
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@ -0,0 +1,5 @@
typedef struct {
int x, y, width, height;
} OtkRect;
PyObject *OtkRect_New(int x, int y, int width, int height);

195
otk_c/screeninfo.c Normal file
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@ -0,0 +1,195 @@
// -*- mode: C; indent-tabs-mode: nil; -*-
#include "../config.h"
#include "screeninfo.h"
#include "display.h"
#include "rect.h"
#include <X11/Xutil.h>
#ifdef HAVE_STRING_H
# include <string.h>
#endif
#include "../src/gettext.h"
extern PyTypeObject OtkScreenInfo_Type;
PyObject *OtkScreenInfo_New(int num)
{
OtkScreenInfo* self;
char *dstr, *dstr2;
int i;
self = PyObject_New(OtkScreenInfo, &OtkScreenInfo_Type);
self->screen = num;
self->root_window = RootWindow(OBDisplay->display, self->screen);
self->rect = OtkRect_New(0, 0,
WidthOfScreen(ScreenOfDisplay(OBDisplay->display,
self->screen)),
HeightOfScreen(ScreenOfDisplay(OBDisplay->display,
self->screen)));
/*
If the default depth is at least 8 we will use that,
otherwise we try to find the largest TrueColor visual.
Preference is given to 24 bit over larger depths if 24 bit is an option.
*/
self->depth = DefaultDepth(OBDisplay->display, self->screen);
self->visual = DefaultVisual(OBDisplay->display, self->screen);
self->colormap = DefaultColormap(OBDisplay->display, self->screen);
if (self->depth < 8) {
// search for a TrueColor Visual... if we can't find one...
// we will use the default visual for the screen
XVisualInfo vinfo_template, *vinfo_return;
int vinfo_nitems;
int best = -1;
vinfo_template.screen = self->screen;
vinfo_template.class = TrueColor;
vinfo_return = XGetVisualInfo(OBDisplay->display,
VisualScreenMask | VisualClassMask,
&vinfo_template, &vinfo_nitems);
if (vinfo_return) {
int max_depth = 1;
for (i = 0; i < vinfo_nitems; ++i) {
if (vinfo_return[i].depth > max_depth) {
if (max_depth == 24 && vinfo_return[i].depth > 24)
break; // prefer 24 bit over 32
max_depth = vinfo_return[i].depth;
best = i;
}
}
if (max_depth < self->depth) best = -1;
}
if (best != -1) {
self->depth = vinfo_return[best].depth;
self->visual = vinfo_return[best].visual;
self->colormap = XCreateColormap(OBDisplay->display, self->root_window,
self->visual, AllocNone);
}
XFree(vinfo_return);
}
// get the default display string and strip the screen number
self->display_string =
PyString_FromFormat("DISPLAY=%s",DisplayString(OBDisplay->display));
dstr = PyString_AsString(self->display_string);
dstr2 = strrchr(dstr, '.');
if (dstr2) {
PyObject *str;
PyString_Resize(self->display_string, dstr2 - dstr);
str = PyString_FromFormat(".%d", self->screen);
PyString_Concat(&self->display_string, str);
}
#ifdef XINERAMA
self->xinerama_active = False;
if (OtkDisplay->hasXineramaExtensions()) {
if (OtkDisplay->getXineramaMajorVersion() == 1) {
// we know the version 1(.1?) protocol
/*
in this version of Xinerama, we can't query on a per-screen basis, but
in future versions we should be able, so the 'activeness' is checked
on a pre-screen basis anyways.
*/
if (XineramaIsActive(OBDisplay->display)) {
/*
If Xinerama is being used, there there is only going to be one screen
present. We still, of course, want to use the screen class, but that
is why no screen number is used in this function call. There should
never be more than one screen present with Xinerama active.
*/
int num;
XineramaScreenInfo *info = XineramaQueryScreens(OBDisplay->display,
&num);
if (num > 0 && info) {
self->xinerama_areas = PyList_New(num);
for (i = 0; i < num; ++i) {
PyList_SetItem(self->xinerama_areas, i,
OtkRect_New(info[i].x_org, info[i].y_org,
info[i].width, info[i].height));
}
XFree(info);
// if we can't find any xinerama regions, then we act as if it is not
// active, even though it said it was
self->xinerama_active = True;
}
}
}
}
#endif // XINERAMA
return (PyObject*)self;
}
static PyObject *otkscreeninfo_getscreen(OtkScreenInfo* self, PyObject* args)
{
if (!PyArg_ParseTuple(args, ":getScreen"))
return NULL;
return PyInt_FromLong(self->screen);
}
static PyObject *otkscreeninfo_getrect(OtkScreenInfo* self, PyObject* args)
{
if (!PyArg_ParseTuple(args, ":getRect"))
return NULL;
return self->rect;
}
static PyMethodDef get_methods[] = {
{"getScreen", (PyCFunction)otkscreeninfo_getscreen, METH_VARARGS,
"Get the screen number."},
{"getRect", (PyCFunction)otkscreeninfo_getrect, METH_VARARGS,
"Get the area taken up by the screen."},
{NULL, NULL, 0, NULL}
};
static void otkscreeninfo_dealloc(PyObject* self)
{
PyObject_Del(((OtkScreenInfo*) self)->display_string);
PyObject_Del(((OtkScreenInfo*) self)->rect);
#ifdef XINERAMA
PyObject_Del(((OtkScreenInfo*) self)->xinerama_areas);
#endif
PyObject_Del(self);
}
static PyObject *otkscreeninfo_getattr(PyObject *obj, char *name)
{
return Py_FindMethod(get_methods, obj, name);
}
PyTypeObject OtkScreenInfo_Type = {
PyObject_HEAD_INIT(NULL)
0,
"OtkScreenInfo",
sizeof(OtkScreenInfo),
0,
otkscreeninfo_dealloc, /*tp_dealloc*/
0, /*tp_print*/
otkscreeninfo_getattr, /*tp_getattr*/
0, /*tp_setattr*/
0, /*tp_compare*/
0, /*tp_repr*/
0, /*tp_as_number*/
0, /*tp_as_sequence*/
0, /*tp_as_mapping*/
0, /*tp_hash */
};

31
otk_c/screeninfo.h Normal file
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@ -0,0 +1,31 @@
// -*- mode: C; indent-tabs-mode: nil; -*-
#ifndef __screeninfo_h
#define __screeninfo_h
#include <X11/Xlib.h>
#include <Python.h>
typedef struct OtkScreenInfo {
int screen;
Window root_window;
int depth;
Visual *visual;
Colormap colormap;
PyObject *display_string; // PyStringObject
PyObject *rect; // OtkRect
#ifdef XINERAMA
PyObject *xinerama_areas; // PyListObject[OtkRect]
Bool xinerama_active;
#endif
} OtkScreenInfo;
//! Creates an OtkScreenInfo for a screen
/*!
@param num The number of the screen on the display for which to fill the
struct with information. Must be a value >= 0.
*/
PyObject *OtkScreenInfo_New(int num);
#endif // __screeninfo_h