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image widget

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many assumptions about X backed were made, to be refined if does not
work properly in some setups
This commit is contained in:
Cedric Roux
2016-05-24 15:38:44 +02:00
parent 50c00218c7
commit d08a2b1a60
9 changed files with 194 additions and 4 deletions
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common/utils/T/tracer/gui/x.c
+57
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@@ -2,6 +2,7 @@
#include "x_defs.h"
#include "gui_defs.h"
#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
@@ -111,6 +112,52 @@ x_window *x_create_window(x_connection *_x, int width, int height,
return ret;
}
x_image *x_create_image(x_connection *_x, unsigned char *data,
int width, int height)
{
struct x_connection *x = _x;
struct x_image *ret;
XImage *ximage;
XVisualInfo *vs;
XVisualInfo template;
int nvs;
Visual *v;
ret = calloc(1, sizeof(struct x_image)); if (ret == NULL) OOM;
template.class = TrueColor;
template.depth = 24;
template.red_mask = 0xff0000;
template.green_mask = 0x00ff00;
template.blue_mask = 0x0000ff;
template.bits_per_rgb = 8;
vs = XGetVisualInfo(x->d, VisualDepthMask | VisualClassMask |
VisualRedMaskMask | VisualGreenMaskMask | VisualBlueMaskMask |
VisualBitsPerRGBMask, &template, &nvs);
if (vs == NULL || nvs == 0) ERR("no good visual found\n");
v = vs[0].visual;
XFree(vs);
ximage = XCreateImage(x->d, v, 24, ZPixmap, 0,
(char*)data, width, height, 32, 0);
if (ximage == NULL) ERR("image creation failed\n");
ret->p = XCreatePixmap(x->d, DefaultRootWindow(x->d), width, height, 24);
XPutImage(x->d, ret->p, DefaultGC(x->d, DefaultScreen(x->d)),
ximage, 0, 0, 0, 0, width, height);
/* TODO: be sure it's fine to set data to NULL */
ximage->data = NULL;
XDestroyImage(ximage);
ret->width = width;
ret->height = height;
return ret;
}
static struct toplevel_window_widget *find_x_window(struct gui *g, Window id)
{
struct widget_list *cur;
@@ -312,6 +359,16 @@ void x_draw_clipped_string(x_connection *_c, x_window *_w, int color,
XSetClipMask(c->d, c->colors[color], None);
}
void x_draw_image(x_connection *_c, x_window *_w, x_image *_img, int x, int y)
{
struct x_connection *c = _c;
struct x_window *w = _w;
struct x_image *img = _img;
XCopyArea(c->d, img->p, w->p, DefaultGC(c->d, DefaultScreen(c->d)),
0, 0, img->width, img->height, x, y);
}
void x_draw(x_connection *_c, x_window *_w)
{
struct x_connection *c = _c;