struct image *image_new(int width, int height)
{
struct image *img;
#if defined(HAVE_SDL_IMAGE_H)
SDL_Surface *priv;
Uint32 rmask, gmask, bmask, amask;
# if SDL_BYTEORDER == SDL_BIG_ENDIAN
rmask = 0xff000000;
gmask = 0x00ff0000;
bmask = 0x0000ff00;
amask = 0x00000000;
# else
rmask = 0x000000ff;
gmask = 0x0000ff00;
bmask = 0x00ff0000;
amask = 0x00000000;
# endif
priv = SDL_CreateRGBSurface(SDL_SWSURFACE, width, height, 32,
rmask, gmask, bmask, amask);
#elif defined(HAVE_IMLIB2_H)
Imlib_Image priv = imlib_create_image(width, height);
#elif defined(HAVE_CV_H)
IplImage *priv = cvCreateImage(cvSize(width, height), IPL_DEPTH_8U, 3);
#endif
if(!priv)
return NULL;
img = (struct image *)malloc(sizeof(struct image));
#if defined(HAVE_SDL_IMAGE_H)
img->width = priv->w;
img->height = priv->h;
img->pitch = priv->pitch;
img->channels = priv->format->BytesPerPixel;
img->pixels = priv->pixels;
#elif defined(HAVE_IMLIB2_H)
imlib_context_set_image(priv);
img->width = imlib_image_get_width();
img->height = imlib_image_get_height();
img->pitch = 4 * imlib_image_get_width();
img->channels = 4;
img->pixels = (char *)imlib_image_get_data();
#elif defined(HAVE_CV_H)
img->width = priv->width;
img->height = priv->height;
img->pitch = priv->widthStep;
img->channels = priv->nChannels;
img->pixels = priv->imageData;
#endif
img->priv = (void *)priv;
return img;
}
struct image *image_load(const char *name)
{
struct image *img;
#if defined(HAVE_SDL_IMAGE_H)
SDL_Surface *priv = IMG_Load(name);
#elif defined(HAVE_IMLIB2_H)
Imlib_Image priv = imlib_load_image(name);
#elif defined(HAVE_CV_H)
IplImage *priv = cvLoadImage(name, -1);
#endif
if(!priv)
return NULL;
#if defined(HAVE_SDL_IMAGE_H)
if(priv->format->BytesPerPixel == 1)
{
img = image_new(priv->w, priv->h);
SDL_BlitSurface(priv, NULL, img->priv, NULL);
SDL_FreeSurface(priv);
return img;
}
#endif
img = (struct image *)malloc(sizeof(struct image));
#if defined(HAVE_SDL_IMAGE_H)
img->width = priv->w;
img->height = priv->h;
img->pitch = priv->pitch;
img->channels = priv->format->BytesPerPixel;
img->pixels = priv->pixels;
#elif defined(HAVE_IMLIB2_H)
imlib_context_set_image(priv);
img->width = imlib_image_get_width();
img->height = imlib_image_get_height();
img->pitch = 4 * imlib_image_get_width();
img->channels = 4;
img->pixels = (char *)imlib_image_get_data();
#elif defined(HAVE_CV_H)
img->width = priv->width;
img->height = priv->height;
img->pitch = priv->widthStep;
img->channels = priv->nChannels;
img->pixels = priv->imageData;
#endif
img->priv = (void *)priv;
return img;
}
static inline PyObject *
ImageObject_get_width(PyObject* self, PyObject *args)
{
imlib_context_set_image(((ImageObject *)self)->image);
int w = imlib_image_get_width();
return Py_BuildValue("i", w);
}
void
scale_init(void)
{
GtkWidget *nfr1, *nlbl, *vbox1;
GtkWidget *b1;
GtkWidget *cur_lbl;
int scw, sch;
char lbl[255];
nlbl = gtk_label_new("Image Scaling");
nfr1 = gtk_frame_new("Image Scaling");
gtk_container_set_border_width(GTK_CONTAINER(nfr1), 3);
gtk_notebook_insert_page(GTK_NOTEBOOK(ModMdi), nfr1, nlbl, 6);
gtk_widget_show(nlbl);
gtk_widget_show(nfr1);
vbox1 = gtk_vbox_new(FALSE, 0);
gtk_container_add(GTK_CONTAINER(nfr1), vbox1);
b1 = gtk_hbox_new(FALSE, 0);
gtk_box_pack_start(GTK_BOX(vbox1), b1, FALSE, TRUE, 0);
imlib_context_set_image(im);
scw = imlib_image_get_width();
sch = imlib_image_get_height();
sprintf(lbl, "Current Width: %d\nCurrent Height: %d\n", scw, sch);
cur_lbl = gtk_label_new(lbl);
gtk_box_pack_start(GTK_BOX(vbox1), cur_lbl, FALSE, TRUE, 0);
gtk_widget_show(cur_lbl);
gtk_widget_show(vbox1);
gtk_widget_show(b1);
}
void execp_dump_geometry(void *obj, int indent)
{
Execp *execp = obj;
if (execp->backend->has_icon && execp->backend->icon) {
Imlib_Image tmp = imlib_context_get_image();
imlib_context_set_image(execp->backend->icon);
fprintf(stderr,
"%*sIcon: x = %d, y = %d, w = %d, h = %d\n",
indent,
"",
execp->frontend->iconx,
execp->frontend->icony,
imlib_image_get_width(),
imlib_image_get_height());
if (tmp)
imlib_context_set_image(tmp);
}
fprintf(stderr,
"%*sText: x = %d, y = %d, w = %d, align = %s, text = %s\n",
indent,
"",
execp->frontend->textx,
execp->frontend->texty,
execp->frontend->textw,
execp->backend->centered ? "center" : "left",
execp->backend->text);
}
static int get_image_width(Imlib_Image img)
{
if (!img)
return 0;
imlib_context_set_image(img);
return imlib_image_get_width();
}
PyObject *image_to_surface(PyObject *self, PyObject *args)
{
PyObject *pyimg;
Imlib_Image *img;
PySurfaceObject *pysurf;
unsigned char *pixels;
static int init = 0;
CHECK_IMAGE_PYOBJECT
if (init == 0) {
import_pygame_surface();
init = 1;
}
if (!PyArg_ParseTuple(args, "O!O!", Image_PyObject_Type, &pyimg,
&PySurface_Type, &pysurf))
return NULL;
img = imlib_image_from_pyobject(pyimg);
imlib_context_set_image(img);
pixels = (unsigned char *)imlib_image_get_data_for_reading_only();
memcpy(pysurf->surf->pixels, pixels, imlib_image_get_width() *
imlib_image_get_height() * 4);
Py_INCREF(Py_None);
return Py_None;
}
struct R_image *
R_load_image_imlib2(struct R_app *app,
const char *filename,
struct R_image *image)
{
Imlib_Image *img;
if (!image) {
image = R_alloc_image();
}
if (image) {
img = imlib_load_image(filename);
if (img) {
imlib_context_set_image(img);
image->app = app;
image->filename = (char *)filename;
image->origw = imlib_image_get_width();
image->origh = imlib_image_get_height();
image->orig = img;
image->pixmap = image->mask = None;
image->tpixmap = image->tmask = None;
image->xpixmap = None;
#if (USE_XSHM)
image->hasshm = 0;
#endif
} else {
fprintf(stderr, "failed to load: %s\n", filename);
}
}
return image;
}
/** Draw an image in a drawable
* \param dr Drawable
* \param x X position
* \param y Y position
* \param name Path of the image
*/
static void draw_image(Drawable dr, int x, int y, int w, int h, char *name)
{
Imlib_Image image;
if(!name)
return;
imlib_set_cache_size(2048 * 1024);
imlib_context_set_display(dpy);
imlib_context_set_visual(DefaultVisual(dpy, DefaultScreen(dpy)));
imlib_context_set_colormap(DefaultColormap(dpy, DefaultScreen(dpy)));
imlib_context_set_drawable(dr);
image = imlib_load_image(patht(name));
imlib_context_set_image(image);
if(w <= 0)
w = imlib_image_get_width();
if(h <= 0)
h = imlib_image_get_height();
if(image)
{
imlib_render_image_on_drawable_at_size(x, y, w, h);
imlib_free_image();
}
else
warnx("Can't draw image: '%s'", name);
return;
}
void image_to_pixmap(image *img, GdkPixmap *pm, int w, int h)
{
int realw, realh;
int need_free;
imlib_context_set_image(img->image);
realw = imlib_image_get_width();
realh = imlib_image_get_height();
if (w != realw || h != realh) {
Imlib_Image newimg;
newimg = imlib_create_cropped_scaled_image(0, 0, realw, realh, w, h);
imlib_context_set_image(newimg);
need_free = TRUE;
} else
need_free = FALSE;
imlib_context_set_display(GDK_WINDOW_XDISPLAY(pm));
imlib_context_set_visual(GDK_VISUAL_XVISUAL(gdk_visual_get_system()));
imlib_context_set_colormap
(GDK_COLORMAP_XCOLORMAP(gdk_colormap_get_system()));
imlib_context_set_drawable(GDK_WINDOW_XWINDOW(pm));
imlib_context_set_blend(1);
imlib_render_image_on_drawable(0, 0);
if (need_free)
imlib_free_image();
}
/* crop image */
Imlib_Image crop(Imlib_Image *source_image, int x, int y, int w, int h)
{
Imlib_Image new_image; /* construct filtered image here */
Imlib_Image current_image; /* save image pointer */
int width, height; /* source image dimensions */
/* save pointer to current image */
current_image = imlib_context_get_image();
/* get width and height of source image */
imlib_context_set_image(*source_image);
width = imlib_image_get_width();
height = imlib_image_get_height();
/* get sane values */
if(x < 0) x = 0;
if(y < 0) y = 0;
if(x >= width) x = width - 1;
if(y >= height) y = height - 1;
if(x + w > width) w = width - x;
if(y + h > height) h = height - x;
/* create the new image */
imlib_context_set_image(*source_image);
new_image = imlib_create_cropped_image(x, y, w, h);
/* restore image from before function call */
imlib_context_set_image(current_image);
/* return filtered image */
return new_image;
}
/* draw a white (background) border around image, overwriting image contents
* beneath border*/
Imlib_Image white_border(Imlib_Image *source_image, int bdwidth)
{
Imlib_Image new_image; /* construct filtered image here */
Imlib_Image current_image; /* save image pointer */
int height, width; /* image dimensions */
int x,y; /* coordinates of upper left corner of rectangles */
/* save pointer to current image */
current_image = imlib_context_get_image();
/* create a new image */
imlib_context_set_image(*source_image);
height = imlib_image_get_height();
width = imlib_image_get_width();
new_image = imlib_clone_image();
/* assure border width has a legal value */
if(bdwidth > width/2) bdwidth = width/2;
if(bdwidth > height/2) bdwidth = height/2;
/* draw white (background) rectangle around new image */
for(x=0, y=0; x<bdwidth; x++, y++) {
imlib_context_set_image(new_image);
ssocr_set_color(BG);
imlib_image_draw_rectangle(x, y, width-2*x, height-2*y);
}
/* restore image from before function call */
imlib_context_set_image(current_image);
/* return filtered image */
return new_image;
}
void render_taskbar(struct task *tasks, struct desktop *desktops)
{
tile_image(theme->tile_img, taskbar_pos, taskbar_width);
int activedesktop = 0;
struct desktop *iter = desktops;
while (iter) {
if (iter->focused)
break;
activedesktop++;
iter = iter->next;
}
struct task *t = tasks;
uint state;
int gap = theme->taskbar.space_gap;
while (t) {
if (t->desktop == activedesktop || t->desktop == -1) {
state = t->focused ? BSTATE_PRESSED : BSTATE_IDLE;
/* draw bg */
draw_taskbar_button(state, t->posx, t->width);
int lgap = get_image_width(theme->taskbar.left_img[state]);
int rgap = get_image_width(theme->taskbar.right_img[state]);
int x = t->posx + gap + lgap;
int w = t->width - ((gap * 2) + lgap + rgap);
/* draw icon */
if (theme->taskbar.icon_h && theme->taskbar.icon_w) {
int srcw, srch;
int y = (theme->height - theme->taskbar.icon_h) / 2;
imlib_context_set_image(t->icon);
srcw = imlib_image_get_width();
srch = imlib_image_get_height();
y += theme->taskbar.icon_offset_y;
x += theme->taskbar.icon_offset_x;
w -= theme->taskbar.icon_offset_x;
imlib_context_set_image(bb);
imlib_context_set_blend(1);
imlib_blend_image_onto_image(t->icon, 1, 0, 0, srcw, srch,
x, y, theme->taskbar.icon_w, theme->taskbar.icon_h);
imlib_context_set_blend(0);
x += theme->taskbar.icon_w;
w -= theme->taskbar.icon_w;
}
/* draw text */
imlib_context_set_cliprect(x, 0, w, bbheight);
draw_text(theme->taskbar.font, theme->taskbar.text_align, x, w,
theme->taskbar.text_offset_x, theme->taskbar.text_offset_y,
t->name, &theme->taskbar.text_color[state]);
imlib_context_set_cliprect(0, 0, bbwidth, bbheight);
/* draw separator if exists */
if (t->next && t->next->desktop == activedesktop)
draw_image(theme->taskbar.separator_img, x+w+gap+rgap);
}
t = t->next;
}
}
// Called from backend functions.
gboolean reload_icon(Execp *execp)
{
char *icon_path = execp->backend->icon_path;
if (execp->backend->has_icon && icon_path) {
if (execp->backend->icon) {
imlib_context_set_image(execp->backend->icon);
imlib_free_image();
}
execp->backend->icon = load_image(icon_path, execp->backend->cache_icon);
if (execp->backend->icon) {
imlib_context_set_image(execp->backend->icon);
int w = imlib_image_get_width();
int h = imlib_image_get_height();
if (w && h) {
if (execp->backend->icon_w) {
if (!execp->backend->icon_h) {
h = (int)(0.5 + h * execp->backend->icon_w / (float)(w));
w = execp->backend->icon_w;
} else {
w = execp->backend->icon_w;
h = execp->backend->icon_h;
}
} else {
if (execp->backend->icon_h) {
w = (int)(0.5 + w * execp->backend->icon_h / (float)(h));
h = execp->backend->icon_h;
}
}
if (w < 1)
w = 1;
if (h < 1)
h = 1;
}
if (w != imlib_image_get_width() || h != imlib_image_get_height()) {
Imlib_Image icon_scaled =
imlib_create_cropped_scaled_image(0, 0, imlib_image_get_width(), imlib_image_get_height(), w, h);
imlib_context_set_image(execp->backend->icon);
imlib_free_image();
execp->backend->icon = icon_scaled;
}
return TRUE;
}
}
return FALSE;
}
static void img_from_im2(sequ_image *ret,Imlib_Image img)
{
ret->lib=&im2_lib;
ret->privdata=img;
/* get the diameters */
imlib_context_set_image(img);
ret->width=imlib_image_get_width();
ret->height=imlib_image_get_height();
}
int
image_load_imlib2(struct R_image *image, const char *filename)
{
size_t len;
Imlib_Image *img;
Imlib_Color_Modifier colormod;
int i;
struct R_image loadimage;
if (image == NULL
|| filename == NULL) {
return -1;
}
fprintf(stderr, "loading %s\n", filename);
image_destroy_imlib2(image);
len = strlen(filename);
image->filename = calloc(1, len + 1);
if (image->filename == NULL) {
return -1;
}
strncpy(image->filename, filename, len);
memset(&loadimage, 0, sizeof(loadimage));
img = imlib_load_image(filename);
if (img == NULL) {
image_destroy_imlib2(image);
return -1;
}
imlib_context_set_image(img);
image->origw = imlib_image_get_width();
image->origh = imlib_image_get_height();
for (i = 0 ; i < IMAGE_COLOR_MODIFIERS ; i++) {
colormod = imlib_create_color_modifier();
if (colormod == NULL) {
image_destroy_imlib2(image);
return -1;
}
image->im2colormods[i] = colormod;
}
colormod = imlib_create_color_modifier();
if (colormod == NULL) {
image_destroy_imlib2(image);
return -1;
}
image->im2colormods[IMAGE_COLOR_MODIFIER] = colormod;
image->im2img = img;
return 0;
}
image *loadImage(const char *filename)
{
Imlib_Image img;
image *result;
int i, j;
int width, height;
if ((result = (image *) calloc(1, sizeof(image))) == NULL) {
fprintf(stderr, "Herpaderp, out of memory");
exit(1);
}
if ((img = imlib_load_image(filename)) == NULL) {
return NULL;
}
imlib_context_set_image(img);
width = imlib_image_get_width();
height = imlib_image_get_height();
result->width = width;
result->height = height;
result->red = newMatrix(width, height);
result->green = newMatrix(width, height);
result->blue = newMatrix(width, height);
for (i = 0; i < width; i++) {
for (j = 0; j < height; j++) {
Imlib_Color col;
imlib_image_query_pixel(i, j, &col);
result->red->vals[i][j] = col.red;
result->green->vals[i][j] = col.green;
result->blue->vals[i][j] = col.blue;
}
}
imlib_free_image();
return result;
}
int command_line(int argc, const char **argv) {
if ( !(dpy=XOpenDisplay(0x0)) ) exit(1);
scr = DefaultScreen(dpy); root = DefaultRootWindow(dpy);
sw = DisplayWidth(dpy,scr); sh = DisplayHeight(dpy,scr);
int i; const char *c;
for (i = 1; i < argc; i++) {
if (argv[i][0] != '-') break;
if ( *(c=argv[i]+1) == '-' ) c++;
if (*c == '\0') continue;
if (*c == 'b') win = root;
}
if ( !(img=imlib_load_image(argv[i])) ) exit(2);;
imlib_context_set_image(img);
imlib_context_set_display(dpy);
imlib_context_set_visual(DefaultVisual(dpy,scr));
imlib_context_set_colormap(DefaultColormap(dpy,scr));
iw = imlib_image_get_width();
ih = imlib_image_get_height();
imlib_context_set_anti_alias(0);
imlib_context_set_dither(0);
imlib_context_set_blend(0);
XSetWindowAttributes wa;
if (win == root) {
Pixmap buf = XCreatePixmap(dpy,root,sw,sh,DefaultDepth(dpy,scr));
imlib_context_set_drawable(buf);
imlib_render_image_on_drawable_at_size(0, 0, sw, sh);
wa.background_pixmap = buf;
XSetWindowBackgroundPixmap(dpy,root,buf);
XFlush(dpy);
XFreePixmap(dpy,buf);
XCloseDisplay(dpy);
exit(0);
}
if (iw > mw) scale = mw / (float) iw;
if (ih * scale > mh) scale = mh / (float) ih;
ww = iw * scale + 0.5; wh = ih * scale + 0.5;
wa.background_pixel = BlackPixel(dpy,scr);
wa.event_mask = KeyPressMask | ExposureMask | StructureNotifyMask;
win = XCreateWindow(dpy,root,0,0,ww,wh,0,DefaultDepth(dpy,scr),
InputOutput, DefaultVisual(dpy,scr),CWEventMask|CWBackPixel,&wa);
const char *name;
if ( (name=strrchr(argv[i],'/')) ) name++;
else name = argv[i];
XStoreName(dpy,win,name);
class.res_name = (char *) argv[0];
class.res_class = "float";
XSetClassHint(dpy,win,&class);
XMapWindow(dpy,win); XFlush(dpy);
imlib_context_set_drawable(win);
return 0;
}
static inline PyObject *
ImageObject_blend_image(PyObject* self, PyObject *args, PyObject *kwargs)
{
int merge_alpha = 1;
PyObject *src = NULL;
int src_x = 0, src_y = 0, src_h = -1, src_w = -1;
int dest_x = 0, dest_y = 0, dest_h = -1, dest_w = -1;
Imlib_Image *src_img;
static char *keywords[] = {"img", "src", "dest", "alpha", NULL};
if (!PyArg_ParseTupleAndKeywords(args, kwargs, "O|(iiii)(iiii)i:blend_image", keywords, &src,
&src_x, &src_y, &src_w, &src_h,
&dest_x, &dest_y, &dest_w, &dest_h, &merge_alpha)){
return NULL;
}
DEBUG("src = %d %d %d %d ", src_x, src_y, src_w, src_h);
DEBUG("dest = %d %d %d %d ", dest_x, dest_y, dest_w, dest_h);
DEBUG("alpha = %d ", merge_alpha);
//check
if(!CheckImageObject(src)){
//TODO raise TypeError
return NULL;
}
src_img = (((ImageObject *)src)->image);
imlib_context_set_image(src_img);
if(src_w == -1){
src_w = imlib_image_get_width();
}
if(src_h == -1){
src_h = imlib_image_get_height();
}
if(dest_w == -1){
dest_w = src_w;
}
if(dest_h == -1){
dest_h = src_h;
}
imlib_context_set_image(((ImageObject *)self)->image);
imlib_context_set_blend(1);
imlib_blend_image_onto_image(src_img, merge_alpha,
src_x, src_y, src_w, src_h,
dest_x, dest_y, dest_w, dest_h);
Py_RETURN_NONE;
}
/* set pixels that have at least mask pixels around it set (including the
* examined pixel itself) to black (foreground), all other pixels to white
* (background) */
Imlib_Image set_pixels_filter(Imlib_Image *source_image, double thresh,
luminance_t lt, int mask)
{
Imlib_Image new_image; /* construct filtered image here */
Imlib_Image current_image; /* save image pointer */
int height, width; /* image dimensions */
int x,y,i,j; /* iteration variables */
int set_pixel; /* should pixel be set or not? */
Imlib_Color color;
int lum; /* luminance value of pixel */
/* save pointer to current image */
current_image = imlib_context_get_image();
/* create a new image */
imlib_context_set_image(*source_image);
height = imlib_image_get_height();
width = imlib_image_get_width();
new_image = imlib_clone_image();
/* check for every pixel if it should be set in filtered image */
for(x=0; x<width; x++) {
for(y=0; y<height; y++) {
set_pixel=0;
for(i=x-1; i<=x+1; i++) {
for(j=y-1; j<=y+1; j++) {
if(i>=0 && i<width && j>=0 && j<height) { /* i,j inside image? */
imlib_image_query_pixel(i, j, &color);
lum = get_lum(&color, lt);
if(is_pixel_set(lum, thresh)) {
set_pixel++;
}
}
}
}
/* set pixel if at least mask pixels around it are set */
if(set_pixel >= mask) {
draw_fg_pixel(new_image, x, y);
} else {
draw_bg_pixel(new_image, x, y);
}
}
}
/* restore image from before function call */
imlib_context_set_image(current_image);
/* return filtered image */
return new_image;
}
void XImlib2Image::createPicture()
{
DesktopIconConfig * dIconConfig =
dynamic_cast<DesktopIconConfig *>(iconConfig);
image = imlib_load_image(dIconConfig->getPictureFilename().c_str());
if (image)
{
imlib_context_set_image(image);
orgWidth = imlib_image_get_width();
orgHeight = imlib_image_get_height();
if (width == 0)
width = imlib_image_get_width();
if (height == 0)
height= imlib_image_get_height();
Imlib_Image tempImg = imlib_create_cropped_scaled_image(0, 0,
orgWidth, orgHeight, width, height);
imlib_free_image();
image = tempImg;
hasAlpha = true; //TODO add checks here
}
else
{
cout << "Can't load: " << dIconConfig->getPictureFilename()
<< " bailing -- "
<< dIconConfig->getCaption() << endl
<< "Check to see if the image and path to image is valid\n";
}
}
struct R_image *
image_clone_imlib2(Drawable drawable, struct R_image *image, int w, int h)
{
struct R_image *newimage;
Imlib_Image img, newimg;
int imagew, imageh;
int neww, newh;
if (image == NULL) {
return NULL;
}
newimage = NULL;
img = image->im2img;
if (img) {
imlib_context_set_drawable(drawable);
imlib_context_set_image(img);
imagew = imlib_image_get_width();
imageh = imlib_image_get_height();
if (w == 0) {
neww = imagew;
} else {
neww = w;
}
if (h == 0) {
newh = imageh;
} else {
newh = h;
}
newimg = imlib_create_cropped_scaled_image(0, 0,
imagew, imageh,
neww, newh);
if (newimg == NULL) {
return NULL;
}
newimage = image_alloc();
if (newimage == NULL) {
return NULL;
}
newimage->w = neww;
newimage->h = newh;
newimage->im2img = newimg;
}
return newimage;
}
static inline PyObject *
ImageObject_scaled_image(PyObject* self, PyObject *args)
{
int x = 0, y = 0, w = 0, h = 0, dw = 0, dh = 0;
if (!PyArg_ParseTuple(args, "ii:cropped_scaled_image", &dw, &dh)){
return NULL;
}
imlib_context_set_image(((ImageObject *)self)->image);
w = imlib_image_get_width();
h = imlib_image_get_height();
Imlib_Image image = imlib_create_cropped_scaled_image(x, y, w, h, dw, dh);
if(!image){
return NULL;
}
return (PyObject *)ImageObject_New(image);
}
/* rotate the image */
Imlib_Image rotate(Imlib_Image *source_image, double theta)
{
Imlib_Image new_image; /* construct filtered image here */
Imlib_Image current_image; /* save image pointer */
int height, width; /* image dimensions */
int x,y; /* iteration variables / target coordinates */
int sx,sy; /* source coordinates */
Imlib_Color color_return; /* for imlib_query_pixel() */
/* save pointer to current image */
current_image = imlib_context_get_image();
/* create a new image */
imlib_context_set_image(*source_image);
height = imlib_image_get_height();
width = imlib_image_get_width();
new_image = imlib_clone_image();
/* convert theta from degrees to radians */
theta = theta / 360 * 2.0 * M_PI;
/* create rotated image
* (some parts of the original image will be lost) */
for(x = 0; x < width; x++) {
for(y = 0; y < height; y++) {
sx = (x-width/2) * cos(theta) + (y-height/2) * sin(theta) + width/2;
sy = (y-height/2) * cos(theta) - (x-width/2) * sin(theta) + height/2;
if((sx >= 0) && (sx <= width) && (sy >= 0) && (sy <= height)) {
imlib_image_query_pixel(sx, sy, &color_return);
imlib_context_set_image(new_image);
imlib_context_set_color(color_return.red, color_return.green, color_return.blue, color_return.alpha);
} else {
imlib_context_set_image(new_image);
ssocr_set_color(BG);
}
imlib_image_draw_pixel(x,y,0);
imlib_context_set_image(*source_image);
}
}
/* restore image from before function call */
imlib_context_set_image(current_image);
/* return filtered image */
return new_image;
}
static int
x11_get_image_size(w3mimg_op * self, W3MImage * img, char *fname, int *w,
int *h)
{
struct x11_info *xi;
#if defined(USE_IMLIB)
ImlibImage *im;
#elif defined(USE_IMLIB2)
Imlib_Image im;
#elif defined(USE_GDKPIXBUF)
GdkPixbufAnimation *animation;
#endif
if (self == NULL)
return 0;
xi = (struct x11_info *)self->priv;
if (xi == NULL)
return 0;
#if defined(USE_IMLIB)
im = Imlib_load_image(xi->id, fname);
if (!im)
return 0;
*w = im->rgb_width;
*h = im->rgb_height;
Imlib_kill_image(xi->id, im);
#elif defined(USE_IMLIB2)
im = imlib_load_image(fname);
if (im == NULL)
return 0;
imlib_context_set_image(im);
*w = imlib_image_get_width();
*h = imlib_image_get_height();
imlib_free_image();
#elif defined(USE_GDKPIXBUF)
animation = gdk_pixbuf_animation_new_from_file(fname);
if (!animation)
return 0;
get_animation_size(animation, w, h, NULL);
gdk_pixbuf_animation_unref(animation);
#endif
return 1;
}
/* mirror image horizontally or vertically */
Imlib_Image mirror(Imlib_Image *source_image, mirror_t direction)
{
Imlib_Image new_image; /* construct filtered image here */
Imlib_Image current_image; /* save image pointer */
int height, width; /* image dimensions */
int x,y; /* iteration variables / target coordinates */
Imlib_Color color_return; /* for imlib_query_pixel() */
/* save pointer to current image */
current_image = imlib_context_get_image();
/* create a new image */
imlib_context_set_image(*source_image);
height = imlib_image_get_height();
width = imlib_image_get_width();
new_image = imlib_clone_image();
/* create mirrored image */
if(direction == HORIZONTAL) {
for(x = width-1; x>=0; x--) {
for(y = 0; y < height; y++) {
imlib_image_query_pixel(width - 1 - x, y, &color_return);
imlib_context_set_image(new_image);
imlib_context_set_color(color_return.red, color_return.green, color_return.blue, color_return.alpha);
imlib_image_draw_pixel(x,y,0);
imlib_context_set_image(*source_image);
}
}
} else if(direction == VERTICAL) {
for(x = 0; x < width; x++) {
for(y = height-1; y >= 0; y--) {
imlib_image_query_pixel(x, height - 1 - y, &color_return);
imlib_context_set_image(new_image);
imlib_context_set_color(color_return.red, color_return.green, color_return.blue, color_return.alpha);
imlib_image_draw_pixel(x,y,0);
imlib_context_set_image(*source_image);
}
}
}
/* restore image from before function call */
imlib_context_set_image(current_image);
/* return filtered image */
return new_image;
}
bool img_frame_goto(img_t *img, int n) {
if (img == NULL || img->im == NULL)
return false;
if (n < 0 || n >= img->multi.cnt || n == img->multi.sel)
return false;
img->multi.sel = n;
img->im = img->multi.frames[n].im;
imlib_context_set_image(img->im);
img->w = imlib_image_get_width();
img->h = imlib_image_get_height();
img->checkpan = true;
img->dirty = true;
return true;
}
Picture::Picture(std::string file_name, const Palette &palette,
bool calc_dominant)
{
Imlib_Image image = imlib_load_image(file_name.c_str());
assert(image);
imlib_context_set_image(image);
x_ = imlib_image_get_width();
y_ = imlib_image_get_height();
i = new int[x_ * y_];
uint32_t *img_data = (uint32_t *)imlib_image_get_data();
for (int y = 0; y < y_; y++)
for (int x = 0; x < x_; x++)
i[x + y * x_] = palette.color(img_data[x + y * x_]);
if (calc_dominant)
dominant = palette.color(rgbaDominant(img_data, x_*y_));
imlib_free_image();
}
/* compute dynamic threshold value from the rectangle (x,y),(x+w,y+h) of
* source_image */
double get_threshold(Imlib_Image *source_image, double fraction, luminance_t lt,
int x, int y, int w, int h)
{
Imlib_Image current_image; /* save image pointer */
int height, width; /* image dimensions */
int xi,yi; /* iteration variables */
Imlib_Color color;
int lum; /* luminance of pixel */
double minval=(double)MAXRGB, maxval=0.0;
/* save pointer to current image */
current_image = imlib_context_get_image();
/* get image dimensions */
imlib_context_set_image(*source_image);
height = imlib_image_get_height();
width = imlib_image_get_width();
/* special value -1 for width or height means image width/height */
if(w == -1) w = width;
if(h == -1) h = width;
/* assure valid coordinates */
if(x+w > width) x = width-w;
if(y+h > height) y = height-h;
if(x<0) x=0;
if(y<0) y=0;
/* find the threshold value to differentiate between dark and light */
for(xi=0; (xi<w) && (xi<width); xi++) {
for(yi=0; (yi<h) && (yi<height); yi++) {
imlib_image_query_pixel(x+xi, y+yi, &color);
lum = get_lum(&color, lt);
if(lum < minval) minval = lum;
if(lum > maxval) maxval = lum;
}
}
/* restore image from before function call */
imlib_context_set_image(current_image);
return (minval + fraction * (maxval - minval)) * 100 / MAXRGB;
}
Imlib_Image scale_icon(Imlib_Image original, int icon_size)
{
Imlib_Image icon_scaled;
if (original) {
imlib_context_set_image (original);
icon_scaled = imlib_create_cropped_scaled_image(0, 0, imlib_image_get_width(), imlib_image_get_height(), icon_size, icon_size);
imlib_context_set_image (icon_scaled);
imlib_image_set_has_alpha(1);
DATA32* data = imlib_image_get_data();
adjust_asb(data, icon_size, icon_size, launcher_alpha, (float)launcher_saturation/100, (float)launcher_brightness/100);
imlib_image_put_back_data(data);
} else {
icon_scaled = imlib_create_image(icon_size, icon_size);
imlib_context_set_image (icon_scaled);
imlib_context_set_color(255, 255, 255, 255);
imlib_image_fill_rectangle(0, 0, icon_size, icon_size);
}
return icon_scaled;
}
