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#define __SP_CURSOR_C__
/*
* Some convenience stuff
*
* Authors:
* Lauris Kaplinski <lauris@kaplinski.com>
*
* Copyright (C) 1999-2002 authors
* Copyright (C) 2001-2002 Ximian, Inc.
*
* Released under GNU GPL, read the file 'COPYING' for more information
*/
#include <cstdio>
#include <cstring>
#include <string>
#include <ctype.h>
#include <map>
#include "color.h"
#include "sp-cursor.h"
void
sp_cursor_bitmap_and_mask_from_xpm(GdkBitmap **bitmap, GdkBitmap **mask, gchar const *const *xpm)
{
int height;
int width;
int colors;
int pix;
sscanf(xpm[0], "%d %d %d %d", &height, &width, &colors, &pix);
g_return_if_fail (height == 32);
g_return_if_fail (width == 32);
g_return_if_fail (colors >= 3);
int transparent_color = ' ';
std::string black_colors;
char pixmap_buffer[(32 * 32)/8];
char mask_buffer[(32 * 32)/8];
for (int i = 0; i < colors; i++) {
char const *p = xpm[1 + i];
char const ccode = *p;
p++;
while (isspace(*p)) {
p++;
}
p++;
while (isspace(*p)) {
p++;
}
if (strcmp(p, "None") == 0) {
transparent_color = ccode;
}
if (strcmp(p, "Stroke") == 0) {
black_colors.push_back(ccode);
}
if (strcmp(p, "#000000") == 0) {
black_colors.push_back(ccode);
}
}
for (int y = 0; y < 32; y++) {
for (int x = 0; x < 32; ) {
char value = 0;
char maskv = 0;
for (int pix = 0; pix < 8; pix++, x++){
if (xpm[1+colors+y][x] != transparent_color) {
maskv |= 1 << pix;
if (black_colors.find(xpm[1+colors+y][x]) != std::string::npos) {
value |= 1 << pix;
}
}
}
pixmap_buffer[(y * 4 + x/8)-1] = value;
mask_buffer[(y * 4 + x/8)-1] = maskv;
}
}
*bitmap = gdk_bitmap_create_from_data(NULL, pixmap_buffer, 32, 32);
*mask = gdk_bitmap_create_from_data(NULL, mask_buffer, 32, 32);
}
static void free_cursor_data(guchar *pixels, gpointer data) {
delete [] reinterpret_cast<guint32*>(pixels);
}
struct RGBA {
guchar v[4];
RGBA() { v[0] = 0; v[1] = 0; v[2] = 0; v[3] = 0; }
RGBA(guchar r, guchar g, guchar b, guchar a) { v[0] = r; v[1] = g; v[2] = b; v[3] = a; }
operator guint32 const () const { return *reinterpret_cast<guint32 const *>(v); }
};
GdkPixbuf*
sp_cursor_pixbuf_from_xpm(gchar const *const *xpm, GdkColor const& black, GdkColor const& white, guint32 fill, guint32 stroke)
{
int height;
int width;
int colors;
int pix;
sscanf(xpm[0], "%d %d %d %d", &height, &width, &colors, &pix);
//g_return_if_fail (height == 32);
//g_return_if_fail (width == 32);
//g_return_if_fail (colors >= 3);
std::map<char,RGBA> colorMap;
for (int i = 0; i < colors; i++) {
char const *p = xpm[1 + i];
char const ccode = *p;
p++;
while (isspace(*p)) {
p++;
}
p++;
while (isspace(*p)) {
p++;
}
if (strcmp(p, "None") == 0) {
colorMap.insert(std::make_pair(ccode, RGBA()));
} else if (strcmp(p, "Fill") == 0) {
colorMap.insert(std::make_pair(ccode, RGBA(SP_RGBA32_R_U(fill),SP_RGBA32_G_U(fill),SP_RGBA32_B_U(fill),SP_RGBA32_A_U(fill))));
} else if (strcmp(p, "Stroke") == 0) {
colorMap.insert(std::make_pair(ccode, RGBA(SP_RGBA32_R_U(stroke),SP_RGBA32_G_U(stroke),SP_RGBA32_B_U(stroke),SP_RGBA32_A_U(stroke))));
} else if (strcmp(p, "#000000") == 0) {
colorMap.insert(std::make_pair(ccode, RGBA(black.red,black.green,black.blue,255)));
} else if (strcmp(p, "#FFFFFF") == 0) {
colorMap.insert(std::make_pair(ccode, RGBA(white.red,white.green,white.blue,255)));
} else {
colorMap.insert(std::make_pair(ccode, RGBA()));
}
}
guint32 *pixmap_buffer = new guint32[width * height];
for (int y = 0; y < height; y++) {
for (int x = 0; x < width; x++) {
std::map<char,RGBA>::const_iterator it = colorMap.find(xpm[1+colors+y][x]);
pixmap_buffer[y * width + x] = it==colorMap.end() ? 0u : it->second;
}
}
return gdk_pixbuf_new_from_data(reinterpret_cast<guchar*>(pixmap_buffer), GDK_COLORSPACE_RGB, TRUE, 8, width, height, width*sizeof(guint32), free_cursor_data, NULL);
}
GdkCursor *
sp_cursor_new_from_xpm(gchar const *const *xpm, gint hot_x, gint hot_y)
{
GdkColor const fg = { 0, 0, 0, 0 };
GdkColor const bg = { 0, 65535, 65535, 65535 };
GdkBitmap *bitmap = NULL;
GdkBitmap *mask = NULL;
sp_cursor_bitmap_and_mask_from_xpm (&bitmap, &mask, xpm);
if ( bitmap != NULL && mask != NULL ) {
GdkCursor *new_cursor = gdk_cursor_new_from_pixmap (bitmap, mask,
&fg, &bg,
hot_x, hot_y);
g_object_unref (bitmap);
g_object_unref (mask);
return new_cursor;
}
return NULL;
}
/*
Local Variables:
mode:c++
c-file-style:"stroustrup"
c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
indent-tabs-mode:nil
fill-column:99
End:
*/
// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4 :
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