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testgdi.c
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testgdi.c
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/* -*- Mode: c; c-basic-offset: 4; indent-tabs-mode: nil -*-
*
* testgdi.c : simple test hack
*
* Authors:
* Vladimir Vukicevic <vladimir@pobox.com>
*
* Based on cairo test code.
*
* Modify the body of win_draw() to test your own code.
*/
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <math.h>
#include <cairo.h>
#include "gdip.h"
#include <freetype/tttables.h>
typedef struct win {
Display *dpy;
int scr;
Window win;
GC gc;
int width, height;
KeyCode quit_code;
}
win_t;
static void win_init(win_t *win);
static void win_deinit(win_t *win);
static void win_draw(win_t *win);
static void win_handle_events(win_t *win);
#define CHECK_GDIP_ST(st) do { if(st != Ok) { g_print("got st: %d expected Ok"); } } while (0)
static void
win_draw(win_t *win)
{
GpGraphics *gp;
GpStatus st;
GpImage *img;
gunichar2 *unis;
cairo_surface_t *surface;
XClearWindow(win->dpy, win->win);
surface = cairo_xlib_surface_create(win->dpy, win->win,
DefaultVisual(win->dpy, DefaultScreen(win->dpy)),
win->width, win->height);
gp = gdip_graphics_new (surface);
{
GpPen *pen;
GpBrush *brush;
int a = 255;
int r = 255;
int g = 0;
int b = 0;
GdipCreatePen1 (a << 24 | r << 16 | g << 8 | b,
10, UnitPixel, &pen);
GdipDrawRectangle (gp, pen, 10, 10, 60, 60);
GdipDrawLine (gp, pen, 0, 0, 100, 100);
GdipCreateSolidFill (a << 24 | r << 16 | g << 8 | b,
&brush);
printf ("%s\n",cairo_status_to_string (GdipFillEllipse (gp, brush, 40, 40, 50, 75)));
// return;
}
unis = g_utf8_to_utf16 ("test.jpg", -1, NULL, NULL, NULL);
st = GdipLoadImageFromFile (unis, &img);
CHECK_GDIP_ST(st);
st = GdipDrawImage (gp, img, 0, 0);
CHECK_GDIP_ST(st);
g_free (unis);
GdipDisposeImage (img);
img = NULL;
printf("jpg drawn \n");
unis = g_utf8_to_utf16 ("test.tif", -1, NULL, NULL, NULL);
st = GdipLoadImageFromFile (unis, &img);
CHECK_GDIP_ST(st);
st = GdipDrawImage (gp, img, 100, 0);
CHECK_GDIP_ST(st);
g_free (unis);
GdipDisposeImage (img);
img = NULL;
printf("tif drawn \n");
unis = g_utf8_to_utf16 ("test.gif", -1, NULL, NULL, NULL);
st = GdipLoadImageFromFile (unis, &img);
CHECK_GDIP_ST(st);
st = GdipDrawImage (gp, img, 200, 0);
CHECK_GDIP_ST(st);
g_free (unis);
GdipDisposeImage (img);
img = NULL;
printf("gif drawn \n");
unis = g_utf8_to_utf16 ("test.png", -1, NULL, NULL, NULL);
st = GdipLoadImageFromFile (unis, &img);
CHECK_GDIP_ST(st);
st = GdipDrawImage (gp, img, 0, 100);
CHECK_GDIP_ST(st);
g_free (unis);
GdipDisposeImage (img);
img = NULL;
printf("png drawn \n");
unis = g_utf8_to_utf16 ("test.bmp", -1, NULL, NULL, NULL);
st = GdipLoadImageFromFile (unis, &img);
CHECK_GDIP_ST(st);
st = GdipDrawImage (gp, img, 200, 100);
CHECK_GDIP_ST(st);
g_free (unis);
GdipDisposeImage (img);
img = NULL;
printf("bmp drawn \n");
}
int
main(int argc, char *argv[])
{
win_t win;
win.dpy = XOpenDisplay(0);
if (win.dpy == NULL) {
fprintf(stderr, "Failed to open display\n");
return 1;
}
win_init(&win);
win_draw(&win);
win_handle_events(&win);
win_deinit(&win);
XCloseDisplay(win.dpy);
return 0;
}
static void
win_init(win_t *win)
{
Window root;
win->width = 400;
win->height = 400;
root = DefaultRootWindow(win->dpy);
win->scr = DefaultScreen(win->dpy);
win->win = XCreateSimpleWindow(win->dpy, root, 0, 0,
win->width, win->height, 0,
BlackPixel(win->dpy, win->scr), BlackPixel(win->dpy, win->scr));
win->quit_code = XKeysymToKeycode(win->dpy, XStringToKeysym("Q"));
XSelectInput(win->dpy, win->win,
KeyPressMask
|StructureNotifyMask
|ExposureMask);
XMapWindow(win->dpy, win->win);
}
static void
win_deinit(win_t *win)
{
XDestroyWindow(win->dpy, win->win);
}
static void
win_handle_events(win_t *win)
{
XEvent xev;
while (1) {
XNextEvent(win->dpy, &xev);
switch(xev.type) {
case KeyPress:
{
XKeyEvent *kev = &xev.xkey;
if (kev->keycode == win->quit_code) {
return;
}
}
break;
case ConfigureNotify:
{
XConfigureEvent *cev = &xev.xconfigure;
win->width = cev->width;
win->height = cev->height;
}
break;
case Expose:
{
XExposeEvent *eev = &xev.xexpose;
if (eev->count == 0)
win_draw(win);
}
break;
}
}
}