FreeRDP/rdtk/sample/rdtk_x11.c
2018-02-12 12:44:51 +01:00

157 lines
3.4 KiB
C

/**
* RdTk: Remote Desktop Toolkit
*
* Copyright 2014 Marc-Andre Moreau <marcandre.moreau@gmail.com>
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <freerdp/log.h>
#include <rdtk/rdtk.h>
#include <X11/Xlib.h>
#include <X11/Xutil.h>
#define TAG "rdtk.sample"
int main(int argc, char** argv)
{
GC gc;
int index;
int depth;
int x, y;
int width;
int height;
BYTE* buffer;
int scanline;
int pf_count;
XEvent event;
XImage* image;
Pixmap pixmap;
Screen* screen;
Visual* visual;
int scanline_pad;
int screen_number;
Display* display;
Window window;
Window root_window;
rdtkEngine* engine;
rdtkSurface* surface;
unsigned long border;
unsigned long background;
XPixmapFormatValues* pf;
XPixmapFormatValues* pfs;
display = XOpenDisplay(NULL);
if (!display)
{
WLog_ERR(TAG, "Cannot open display");
exit(1);
}
x = 10;
y = 10;
width = 640;
height = 480;
screen_number = DefaultScreen(display);
screen = ScreenOfDisplay(display, screen_number);
visual = DefaultVisual(display, screen_number);
gc = DefaultGC(display, screen_number);
depth = DefaultDepthOfScreen(screen);
root_window = RootWindow(display, screen_number);
border = BlackPixel(display, screen_number);
background = WhitePixel(display, screen_number);
scanline_pad = 0;
pfs = XListPixmapFormats(display, &pf_count);
for (index = 0; index < pf_count; index++)
{
pf = &pfs[index];
if (pf->depth == depth)
{
scanline_pad = pf->scanline_pad;
break;
}
}
XFree(pfs);
engine = rdtk_engine_new();
if (!engine)
return 1;
scanline = width * 4;
buffer = (BYTE*) calloc(height, scanline);
if (!buffer)
return 1;
surface = rdtk_surface_new(engine, buffer, width, height, scanline);
rdtk_surface_fill(surface, 0, 0, width, height, 0x3BB9FF);
rdtk_label_draw(surface, 16, 16, 128, 32, NULL, "label", 0, 0);
rdtk_button_draw(surface, 16, 64, 128, 32, NULL, "button");
rdtk_text_field_draw(surface, 16, 128, 128, 32, NULL, "text field");
window = XCreateSimpleWindow(display, root_window,
x, y, width, height, 1, border, background);
XSelectInput(display, window, ExposureMask | KeyPressMask);
XMapWindow(display, window);
XSetFunction(display, gc, GXcopy);
XSetFillStyle(display, gc, FillSolid);
pixmap = XCreatePixmap(display, window, width, height, depth);
image = XCreateImage(display, visual, depth, ZPixmap, 0,
(char*) buffer, width, height, scanline_pad, 0);
while (1)
{
XNextEvent(display, &event);
if (event.type == Expose)
{
XPutImage(display, pixmap, gc, image, 0, 0, 0, 0, width, height);
XCopyArea(display, pixmap, window, gc, 0, 0, width, height, 0, 0);
}
if (event.type == KeyPress)
break;
if (event.type == ClientMessage)
break;
}
XFlush(display);
XDestroyImage(image);
XCloseDisplay(display);
rdtk_surface_free(surface);
free(buffer);
rdtk_engine_free(engine);
return 0;
}