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143 lines
3.5 KiB
C
143 lines
3.5 KiB
C
/**
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* RdTk: Remote Desktop Toolkit
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*
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* Copyright 2014 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 <rdtk/config.h>
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#include <stdint.h>
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#include <winpr/wlog.h>
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#include <winpr/assert.h>
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#include <winpr/cast.h>
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#include <rdtk/rdtk.h>
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#include <X11/Xlib.h>
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#include <X11/Xutil.h>
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#define TAG "rdtk.sample"
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int main(int argc, char** argv)
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{
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int rc = 1;
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int pf_count = 0;
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XEvent event;
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XImage* image = NULL;
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Pixmap pixmap = 0;
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Window window = 0;
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rdtkSurface* surface = NULL;
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WINPR_UNUSED(argc);
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WINPR_UNUSED(argv);
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Display* display = XOpenDisplay(NULL);
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if (!display)
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{
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WLog_ERR(TAG, "Cannot open display");
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return 1;
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}
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const INT32 x = 10;
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const INT32 y = 10;
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const UINT32 width = 640;
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const UINT32 height = 480;
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const int screen_number = DefaultScreen(display);
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const Screen* screen = ScreenOfDisplay(display, screen_number);
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Visual* visual = DefaultVisual(display, screen_number);
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const GC gc = DefaultGC(display, screen_number);
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const int depth = DefaultDepthOfScreen(screen);
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const Window root_window = RootWindow(display, screen_number);
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const unsigned long border = BlackPixel(display, screen_number);
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const unsigned long background = WhitePixel(display, screen_number);
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int scanline_pad = 0;
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XPixmapFormatValues* pfs = XListPixmapFormats(display, &pf_count);
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for (int index = 0; index < pf_count; index++)
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{
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XPixmapFormatValues* pf = &pfs[index];
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if (pf->depth == depth)
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{
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scanline_pad = pf->scanline_pad;
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break;
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}
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}
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XFree(pfs);
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rdtkEngine* engine = rdtk_engine_new();
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const size_t scanline = width * 4ULL;
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uint8_t* buffer = (uint8_t*)calloc(height, scanline);
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if (!engine || !buffer || (depth < 0))
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goto fail;
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surface = rdtk_surface_new(engine, buffer, width, height, scanline);
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rdtk_surface_fill(surface, 0, 0, width, height, 0x3BB9FF);
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rdtk_label_draw(surface, 16, 16, 128, 32, NULL, "label", 0, 0);
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rdtk_button_draw(surface, 16, 64, 128, 32, NULL, "button");
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rdtk_text_field_draw(surface, 16, 128, 128, 32, NULL, "text field");
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window = XCreateSimpleWindow(display, root_window, x, y, width, height, 1, border, background);
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XSelectInput(display, window, ExposureMask | KeyPressMask);
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XMapWindow(display, window);
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XSetFunction(display, gc, GXcopy);
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XSetFillStyle(display, gc, FillSolid);
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pixmap = XCreatePixmap(display, window, width, height, (unsigned)depth);
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image = XCreateImage(display, visual, (unsigned)depth, ZPixmap, 0, (char*)buffer, width, height,
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scanline_pad, 0);
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while (1)
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{
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XNextEvent(display, &event);
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if (event.type == Expose)
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{
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XPutImage(display, pixmap, gc, image, 0, 0, 0, 0, width, height);
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XCopyArea(display, pixmap, window, gc, 0, 0, width, height, 0, 0);
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}
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if (event.type == KeyPress)
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break;
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if (event.type == ClientMessage)
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break;
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}
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XFlush(display);
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rc = 0;
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fail:
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if (image)
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XDestroyImage(image);
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XCloseDisplay(display);
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rdtk_surface_free(surface);
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free(buffer);
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rdtk_engine_free(engine);
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return rc;
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}
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