316 lines
8.1 KiB
C
316 lines
8.1 KiB
C
/**
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* FreeRDP: A Remote Desktop Protocol Client
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* X11 Windows
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*
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* Copyright 2011 Marc-Andre Moreau <marcandre.moreau@gmail.com>
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <X11/Xutil.h>
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#include "xf_window.h"
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/* Extended Window Manager Hints: http://standards.freedesktop.org/wm-spec/wm-spec-1.3.html */
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#define MWM_HINTS_DECORATIONS (1L << 1)
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#define PROP_MOTIF_WM_HINTS_ELEMENTS 5
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struct _PropMotifWmHints
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{
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unsigned long flags;
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unsigned long functions;
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unsigned long decorations;
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long inputMode;
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unsigned long status;
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};
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typedef struct _PropMotifWmHints PropMotifWmHints;
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void desktop_fullscreen(xfInfo* xfi, xfWindow* window, boolean fullscreen)
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{
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if (fullscreen)
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{
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if (window->decorations)
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window_show_decorations(xfi, window, False);
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XSetInputFocus(xfi->display, window->handle, RevertToParent, CurrentTime);
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window->fullscreen = True;
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}
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}
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/* http://tronche.com/gui/x/xlib/window-information/XGetWindowProperty.html */
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boolean window_GetProperty(xfInfo* xfi, Window window, char* name, int length,
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unsigned long* nitems, unsigned long* bytes, uint8** prop)
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{
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int status;
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Atom property;
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Atom actual_type;
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int actual_format;
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property = XInternAtom(xfi->display, name, True);
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if (property == None)
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return False;
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status = XGetWindowProperty(xfi->display, window,
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property, 0, length, False, AnyPropertyType,
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&actual_type, &actual_format, nitems, bytes, prop);
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if (status != Success)
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return False;
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return True;
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}
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boolean window_GetCurrentDesktop(xfInfo* xfi)
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{
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boolean status;
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unsigned long nitems;
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unsigned long bytes;
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unsigned char* prop;
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status = window_GetProperty(xfi, DefaultRootWindow(xfi->display),
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"_NET_CURRENT_DESKTOP", 1, &nitems, &bytes, &prop);
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if (status != True)
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return False;
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xfi->current_desktop = (int) *prop;
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xfree(prop);
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return True;
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}
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boolean window_GetWorkArea(xfInfo* xfi)
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{
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long* plong;
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boolean status;
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unsigned long nitems;
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unsigned long bytes;
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unsigned char* prop;
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status = window_GetProperty(xfi, DefaultRootWindow(xfi->display),
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"_NET_WORKAREA", 32 * 4, &nitems, &bytes, &prop);
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if (status != True)
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return False;
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window_GetCurrentDesktop(xfi);
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plong = (long*) prop;
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xfi->workArea.x = plong[xfi->current_desktop * 4 + 0];
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xfi->workArea.y = plong[xfi->current_desktop * 4 + 1];
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xfi->workArea.width = plong[xfi->current_desktop * 4 + 2];
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xfi->workArea.height = plong[xfi->current_desktop * 4 + 3];
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xfree(prop);
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return True;
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}
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void window_show_decorations(xfInfo* xfi, xfWindow* window, boolean show)
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{
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Atom atom;
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PropMotifWmHints hints;
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hints.decorations = 0;
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hints.flags = MWM_HINTS_DECORATIONS;
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atom = XInternAtom(xfi->display, "_MOTIF_WM_HINTS", True);
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if (!atom)
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{
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printf("window_show_decorations: failed to obtain atom _MOTIF_WM_HINTS\n");
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return;
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}
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else
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{
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if (show != True)
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{
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XChangeProperty(xfi->display, window->handle, atom, atom, 32,
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PropModeReplace, (uint8*) &hints, PROP_MOTIF_WM_HINTS_ELEMENTS);
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}
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}
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window->decorations = show;
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}
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xfWindow* desktop_create(xfInfo* xfi, char* name)
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{
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xfWindow* window;
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window = (xfWindow*) xzalloc(sizeof(xfWindow));
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if (window != NULL)
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{
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int input_mask;
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XSizeHints* size_hints;
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XClassHint* class_hints;
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window->decorations = True;
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window->fullscreen = True;
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window->handle = XCreateWindow(xfi->display, RootWindowOfScreen(xfi->screen),
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xfi->workArea.x, xfi->workArea.y, xfi->width, xfi->height, 0, xfi->depth, InputOutput, xfi->visual,
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CWBackPixel | CWBackingStore | CWOverrideRedirect | CWColormap |
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CWBorderPixel, &xfi->attribs);
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class_hints = XAllocClassHint();
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if (class_hints != NULL)
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{
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if (name != NULL)
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class_hints->res_name = name;
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class_hints->res_class = "freerdp";
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XSetClassHint(xfi->display, window->handle, class_hints);
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XFree(class_hints);
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}
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size_hints = XAllocSizeHints();
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if (size_hints)
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{
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size_hints->flags = PMinSize | PMaxSize;
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size_hints->min_width = size_hints->max_width = xfi->width;
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size_hints->min_height = size_hints->max_height = xfi->height;
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XSetWMNormalHints(xfi->display, window->handle, size_hints);
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XFree(size_hints);
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}
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input_mask =
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KeyPressMask | KeyReleaseMask | ButtonPressMask | ButtonReleaseMask |
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VisibilityChangeMask | FocusChangeMask | StructureNotifyMask |
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PointerMotionMask | ExposureMask;
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XSelectInput(xfi->display, window->handle, input_mask);
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XMapWindow(xfi->display, window->handle);
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}
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return window;
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}
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xfWindow* xf_CreateWindow(xfInfo* xfi, int x, int y, int width, int height, char* name)
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{
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xfWindow* window;
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window = (xfWindow*) xzalloc(sizeof(xfWindow));
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window->width = width;
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window->height = height;
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if (window != NULL)
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{
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XGCValues gcv;
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int input_mask;
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XSizeHints* size_hints;
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XClassHint* class_hints;
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window->decorations = False;
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window->fullscreen = False;
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window->handle = XCreateWindow(xfi->display, RootWindowOfScreen(xfi->screen),
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x, y, window->width, window->height, 0, xfi->depth, InputOutput, xfi->visual,
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CWBackPixel | CWBackingStore | CWOverrideRedirect | CWColormap |
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CWBorderPixel, &xfi->attribs);
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window_show_decorations(xfi, window, window->decorations);
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class_hints = XAllocClassHint();
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if (class_hints != NULL)
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{
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class_hints->res_name = "rail";
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class_hints->res_class = "freerdp";
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XSetClassHint(xfi->display, window->handle, class_hints);
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XFree(class_hints);
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}
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size_hints = XAllocSizeHints();
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if (size_hints)
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{
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size_hints->flags = PMinSize | PMaxSize;
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size_hints->min_width = size_hints->max_width = window->width;
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size_hints->min_height = size_hints->max_height = window->height;
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XSetWMNormalHints(xfi->display, window->handle, size_hints);
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XFree(size_hints);
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}
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input_mask =
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KeyPressMask | KeyReleaseMask | ButtonPressMask | ButtonReleaseMask |
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VisibilityChangeMask | FocusChangeMask | StructureNotifyMask |
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PointerMotionMask | ExposureMask;
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XSelectInput(xfi->display, window->handle, input_mask);
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XMapWindow(xfi->display, window->handle);
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memset(&gcv, 0, sizeof(gcv));
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window->gc = XCreateGC(xfi->display, window->handle, GCGraphicsExposures, &gcv);
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window->surface = XCreatePixmap(xfi->display, window->handle, window->width, window->height, xfi->depth);
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XStoreName(xfi->display, window->handle, name);
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xf_MoveWindow(xfi, window, x, y, width, height);
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}
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return window;
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}
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void xf_MoveWindow(xfInfo* xfi, xfWindow* window, int x, int y, int width, int height)
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{
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Pixmap surface;
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XSizeHints* size_hints;
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if ((width * height) < 1)
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return;
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size_hints = XAllocSizeHints();
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if (size_hints)
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{
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size_hints->flags = PMinSize | PMaxSize;
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size_hints->min_width = size_hints->max_width = width;
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size_hints->min_height = size_hints->max_height = height;
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XSetWMNormalHints(xfi->display, window->handle, size_hints);
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XFree(size_hints);
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}
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if (window->width == width && window->height == height)
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XMoveWindow(xfi->display, window->handle, x, y);
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else if (window->x == x && window->y == y)
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XResizeWindow(xfi->display, window->handle, width, height);
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else
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XMoveResizeWindow(xfi->display, window->handle, x, y, width, height);
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surface = XCreatePixmap(xfi->display, window->handle, width, height, xfi->depth);
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XCopyArea(xfi->display, surface, window->surface, window->gc, 0, 0, window->width, window->height, 0, 0);
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XFreePixmap(xfi->display, window->surface);
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window->surface = surface;
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window->x = x;
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window->y = y;
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window->width = width;
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window->height = height;
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}
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void xf_DestroyWindow(xfInfo* xfi, xfWindow* window)
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{
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XFreeGC(xfi->display, window->gc);
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XFreePixmap(xfi->display, window->surface);
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XUnmapWindow(xfi->display, window->handle);
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XDestroyWindow(xfi->display, window->handle);
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xfree(window);
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}
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