diff options
Diffstat (limited to 'src/Fl_Help_View.cxx')
| -rw-r--r-- | src/Fl_Help_View.cxx | 1391 |
1 files changed, 88 insertions, 1303 deletions
diff --git a/src/Fl_Help_View.cxx b/src/Fl_Help_View.cxx index 84ae14349..939011f9a 100644 --- a/src/Fl_Help_View.cxx +++ b/src/Fl_Help_View.cxx @@ -1,5 +1,5 @@ // -// "$Id: Fl_Help_View.cxx,v 1.1.2.12 2001/11/22 13:56:10 easysw Exp $" +// "$Id: Fl_Help_View.cxx,v 1.1.2.13 2001/11/24 02:46:19 easysw Exp $" // // Fl_Help_View widget routines. // @@ -26,37 +26,27 @@ // Contents: // // Fl_Help_View::add_block() - Add a text block to the list. -// Fl_Help_View::add_image() - Add an image to the image cache. // Fl_Help_View::add_link() - Add a new link to the list. // Fl_Help_View::add_target() - Add a new target to the list. // Fl_Help_View::compare_targets() - Compare two targets. // Fl_Help_View::do_align() - Compute the alignment for a line in -// a block. +// a block. // Fl_Help_View::draw() - Draw the Fl_Help_View widget. -// Fl_Help_View::find_image() - Find an image by name // Fl_Help_View::format() - Format the help text. // Fl_Help_View::format_table() - Format a table... // Fl_Help_View::get_align() - Get an alignment attribute. // Fl_Help_View::get_attr() - Get an attribute value from the string. // Fl_Help_View::get_color() - Get an alignment attribute. // Fl_Help_View::handle() - Handle events in the widget. -// Fl_Help_View::Fl_Help_View() - Build a Fl_Help_View widget. -// Fl_Help_View::~Fl_Help_View() - Destroy a Fl_Help_View widget. +// Fl_Help_View::Fl_Help_View() - Build a Fl_Help_View widget. +// Fl_Help_View::~Fl_Help_View() - Destroy a Fl_Help_View widget. // Fl_Help_View::load() - Load the specified file. -// Fl_Help_View::load_gif() - Load a GIF image file... -// Fl_Help_View::load_jpeg() - Load a JPEG image file. -// Fl_Help_View::load_png() - Load a PNG image file. // Fl_Help_View::resize() - Resize the help widget. // Fl_Help_View::topline() - Set the top line to the named target. // Fl_Help_View::topline() - Set the top line by number. // Fl_Help_View::value() - Set the help text directly. // Fl_Help_View::compare_blocks() - Compare two blocks. -// gif_read_cmap() - Read the colormap from a GIF file... -// gif_get_block() - Read a GIF data block... -// gif_get_code() - Get a LZW code from the file... -// gif_read_lzw() - Read a byte from the LZW stream... -// gif_read_image() - Read a GIF image stream... -// scrollbar_callback() - A callback for the scrollbar. +// scrollbar_callback() - A callback for the scrollbar. // // @@ -74,9 +64,6 @@ #endif /* HAVE_STRINGS_H */ #include <errno.h> -#include <FL/Fl_Image.H> -#include <FL/Fl_Pixmap.H> - #if defined(WIN32) && ! defined(__CYGWIN__) # include <io.h> # include <direct.h> @@ -89,18 +76,6 @@ # include <unistd.h> #endif // WIN32 -extern "C" -{ -#ifdef HAVE_LIBPNG -# include <zlib.h> -# include <png.h> -#endif // HAVE_LIBPNG - -#ifdef HAVE_LIBJPEG -# include <jpeglib.h> -#endif // HAVE_LIBJPEG -} - #define MAX_COLUMNS 200 @@ -113,328 +88,11 @@ extern "C" typedef int (*compare_func_t)(const void *, const void *); } -// -// GIF definitions... -// - -#define GIF_INTERLACE 0x40 -#define GIF_COLORMAP 0x80 - -typedef unsigned char gif_cmap_t[256][3]; - - -// -// Local globals... -// - -static const char *broken_xpm[] = - { - "16 24 4 1", - "@ c #000000", - " c #ffffff", - "+ c none", - "x c #ff0000", - // pixels - "@@@@@@@+++++++++", - "@ @++++++++++", - "@ @+++++++++++", - "@ @++@++++++++", - "@ @@+++++++++", - "@ @+++@+++++", - "@ @++@@++++@", - "@ xxx @@ @++@@", - "@ xxx xx@@ @", - "@ xxx xxx @", - "@ xxxxxx @", - "@ xxxx @", - "@ xxxxxx @", - "@ xxx xxx @", - "@ xxx xxx @", - "@ xxx xxx @", - "@ @", - "@ @", - "@ @", - "@ @", - "@ @", - "@ @", - "@ @", - "@@@@@@@@@@@@@@@@", - NULL - }; - -static Fl_Pixmap *broken_image = (Fl_Pixmap *)0; -static int gif_eof = 0; // Did we hit EOF? -static unsigned fltk_colors[] = - { - 0x00000000, - 0xff000000, - 0x00ff0000, - 0xffff0000, - 0x0000ff00, - 0xff00ff00, - 0x00ffff00, - 0xffffff00, - 0x55555500, - 0xc6717100, - 0x71c67100, - 0x8e8e3800, - 0x7171c600, - 0x8e388e00, - 0x388e8e00, - 0xaaaaaa00, - 0x55555500, - 0x55555500, - 0x55555500, - 0x55555500, - 0x55555500, - 0x55555500, - 0x55555500, - 0x55555500, - 0x55555500, - 0x55555500, - 0x55555500, - 0x55555500, - 0x55555500, - 0x55555500, - 0x55555500, - 0x55555500, - 0x00000000, - 0x0d0d0d00, - 0x1a1a1a00, - 0x26262600, - 0x31313100, - 0x3d3d3d00, - 0x48484800, - 0x55555500, - 0x5f5f5f00, - 0x6a6a6a00, - 0x75757500, - 0x80808000, - 0x8a8a8a00, - 0x95959500, - 0xa0a0a000, - 0xaaaaaa00, - 0xb5b5b500, - 0xc0c0c000, - 0xcbcbcb00, - 0xd5d5d500, - 0xe0e0e000, - 0xeaeaea00, - 0xf5f5f500, - 0xffffff00, - 0x00000000, - 0x00240000, - 0x00480000, - 0x006d0000, - 0x00910000, - 0x00b60000, - 0x00da0000, - 0x00ff0000, - 0x3f000000, - 0x3f240000, - 0x3f480000, - 0x3f6d0000, - 0x3f910000, - 0x3fb60000, - 0x3fda0000, - 0x3fff0000, - 0x7f000000, - 0x7f240000, - 0x7f480000, - 0x7f6d0000, - 0x7f910000, - 0x7fb60000, - 0x7fda0000, - 0x7fff0000, - 0xbf000000, - 0xbf240000, - 0xbf480000, - 0xbf6d0000, - 0xbf910000, - 0xbfb60000, - 0xbfda0000, - 0xbfff0000, - 0xff000000, - 0xff240000, - 0xff480000, - 0xff6d0000, - 0xff910000, - 0xffb60000, - 0xffda0000, - 0xffff0000, - 0x00003f00, - 0x00243f00, - 0x00483f00, - 0x006d3f00, - 0x00913f00, - 0x00b63f00, - 0x00da3f00, - 0x00ff3f00, - 0x3f003f00, - 0x3f243f00, - 0x3f483f00, - 0x3f6d3f00, - 0x3f913f00, - 0x3fb63f00, - 0x3fda3f00, - 0x3fff3f00, - 0x7f003f00, - 0x7f243f00, - 0x7f483f00, - 0x7f6d3f00, - 0x7f913f00, - 0x7fb63f00, - 0x7fda3f00, - 0x7fff3f00, - 0xbf003f00, - 0xbf243f00, - 0xbf483f00, - 0xbf6d3f00, - 0xbf913f00, - 0xbfb63f00, - 0xbfda3f00, - 0xbfff3f00, - 0xff003f00, - 0xff243f00, - 0xff483f00, - 0xff6d3f00, - 0xff913f00, - 0xffb63f00, - 0xffda3f00, - 0xffff3f00, - 0x00007f00, - 0x00247f00, - 0x00487f00, - 0x006d7f00, - 0x00917f00, - 0x00b67f00, - 0x00da7f00, - 0x00ff7f00, - 0x3f007f00, - 0x3f247f00, - 0x3f487f00, - 0x3f6d7f00, - 0x3f917f00, - 0x3fb67f00, - 0x3fda7f00, - 0x3fff7f00, - 0x7f007f00, - 0x7f247f00, - 0x7f487f00, - 0x7f6d7f00, - 0x7f917f00, - 0x7fb67f00, - 0x7fda7f00, - 0x7fff7f00, - 0xbf007f00, - 0xbf247f00, - 0xbf487f00, - 0xbf6d7f00, - 0xbf917f00, - 0xbfb67f00, - 0xbfda7f00, - 0xbfff7f00, - 0xff007f00, - 0xff247f00, - 0xff487f00, - 0xff6d7f00, - 0xff917f00, - 0xffb67f00, - 0xffda7f00, - 0xffff7f00, - 0x0000bf00, - 0x0024bf00, - 0x0048bf00, - 0x006dbf00, - 0x0091bf00, - 0x00b6bf00, - 0x00dabf00, - 0x00ffbf00, - 0x3f00bf00, - 0x3f24bf00, - 0x3f48bf00, - 0x3f6dbf00, - 0x3f91bf00, - 0x3fb6bf00, - 0x3fdabf00, - 0x3fffbf00, - 0x7f00bf00, - 0x7f24bf00, - 0x7f48bf00, - 0x7f6dbf00, - 0x7f91bf00, - 0x7fb6bf00, - 0x7fdabf00, - 0x7fffbf00, - 0xbf00bf00, - 0xbf24bf00, - 0xbf48bf00, - 0xbf6dbf00, - 0xbf91bf00, - 0xbfb6bf00, - 0xbfdabf00, - 0xbfffbf00, - 0xff00bf00, - 0xff24bf00, - 0xff48bf00, - 0xff6dbf00, - 0xff91bf00, - 0xffb6bf00, - 0xffdabf00, - 0xffffbf00, - 0x0000ff00, - 0x0024ff00, - 0x0048ff00, - 0x006dff00, - 0x0091ff00, - 0x00b6ff00, - 0x00daff00, - 0x00ffff00, - 0x3f00ff00, - 0x3f24ff00, - 0x3f48ff00, - 0x3f6dff00, - 0x3f91ff00, - 0x3fb6ff00, - 0x3fdaff00, - 0x3fffff00, - 0x7f00ff00, - 0x7f24ff00, - 0x7f48ff00, - 0x7f6dff00, - 0x7f91ff00, - 0x7fb6ff00, - 0x7fdaff00, - 0x7fffff00, - 0xbf00ff00, - 0xbf24ff00, - 0xbf48ff00, - 0xbf6dff00, - 0xbf91ff00, - 0xbfb6ff00, - 0xbfdaff00, - 0xbfffff00, - 0xff00ff00, - 0xff24ff00, - 0xff48ff00, - 0xff6dff00, - 0xff91ff00, - 0xffb6ff00, - 0xffdaff00, - 0xffffff00 - }; - // // Local functions... // -static int gif_read_cmap(FILE *fp, int ncolors, gif_cmap_t cmap); -static int gif_get_block(FILE *fp, unsigned char *buffer); -static int gif_get_code (FILE *fp, int code_size, int first_time); -static int gif_read_lzw(FILE *fp, int first_time, int input_code_size); -static int gif_read_image(FILE *fp, Fl_Help_Image *img, gif_cmap_t cmap, - int interlace); static void scrollbar_callback(Fl_Widget *s, void *); @@ -480,280 +138,6 @@ Fl_Help_View::add_block(const char *s, // I - Pointer to start of block text // -// 'Fl_Help_View::add_image()' - Add an image to the image cache. -// - -Fl_Help_Image * // O - Image or NULL if not found -Fl_Help_View::add_image(const char *name, // I - Path of image - const char *wattr, // I - Width attribute - const char *hattr, // I - Height attribute - int make) // I - Make the image? -{ - Fl_Help_Image *img, // New image - *orig; // Original image - FILE *fp; // File pointer - unsigned char header[16]; // First 16 bytes of file - int status; // Status of load... - const char *localname; // Local filename - char dir[1024]; // Current directory - char temp[1024], // Temporary filename - *tempptr; // Pointer into temporary name - int width, // Desired width of image - height; // Desired height of image - - - // See if the image has already been loaded... - if ((img = find_image(name, wattr, hattr)) != (Fl_Help_Image *)0) - { - // Make the image if needed... - if (!img->image) - img->image = new Fl_RGB_Image(img->data, img->w, img->h, img->d); - - return (img); - } - - // See if the image exists with the default size info... - orig = find_image(name, "", ""); - - // Allocate memory as needed... - if (aimage_ == nimage_) - { - aimage_ += 16; - - if (aimage_ == 16) - image_ = (Fl_Help_Image *)malloc(sizeof(Fl_Help_Image) * aimage_); - else - image_ = (Fl_Help_Image *)realloc(image_, sizeof(Fl_Help_Image) * aimage_); - } - - img = image_ + nimage_; - img->name = strdup(name); - img->copy = 0; - - if (!orig) - { - // See if the image can be found... - if (strchr(directory_, ':') != NULL && strchr(name, ':') == NULL) - { - if (name[0] == '/') - { - strcpy(temp, directory_); - if ((tempptr = strrchr(strchr(directory_, ':') + 3, '/')) != NULL) - strcpy(tempptr, name); - else - strcat(temp, name); - } - else - sprintf(temp, "%s/%s", directory_, name); - - if (link_) - localname = (*link_)(this, temp); - else - localname = temp; - } - else if (name[0] != '/' && strchr(name, ':') == NULL) - { - if (directory_[0]) - sprintf(temp, "%s/%s", directory_, name); - else - { - getcwd(dir, sizeof(dir)); - sprintf(temp, "file:%s/%s", dir, name); - } - - if (link_) - localname = (*link_)(this, temp); - else - localname = temp; - } - else if (link_) - localname = (*link_)(this, name); - else - localname = name; - - if (!localname) - return ((Fl_Help_Image *)0); - - if (strncmp(localname, "file:", 5) == 0) - localname += 5; - - // Figure out the file type... - if ((fp = fopen(localname, "rb")) == NULL) - return ((Fl_Help_Image *)0); - - if (fread(header, 1, sizeof(header), fp) == 0) - return ((Fl_Help_Image *)0); - - rewind(fp); - - // Load the image as appropriate... - if (memcmp(header, "GIF87a", 6) == 0 || - memcmp(header, "GIF89a", 6) == 0) - status = load_gif(img, fp); - #ifdef HAVE_LIBPNG - else if (memcmp(header, "\211PNG", 4) == 0) - status = load_png(img, fp); - #endif // HAVE_LIBPNG - #ifdef HAVE_LIBJPEG - else if (memcmp(header, "\377\330\377", 3) == 0 && // Start-of-Image - header[3] >= 0xe0 && header[3] <= 0xef) // APPn - status = load_jpeg(img, fp); - #endif // HAVE_LIBJPEG - else - status = 0; - - fclose(fp); - - if (!status) - { - free(img->name); - return ((Fl_Help_Image *)0); - } - - img->wattr[0] = '\0'; - img->hattr[0] = '\0'; - img->image = 0; - - nimage_ ++; - - // Allocate memory as needed for the new copy... - if (aimage_ == nimage_) - { - aimage_ += 16; - image_ = (Fl_Help_Image *)realloc(image_, sizeof(Fl_Help_Image) * aimage_); - } - - orig = image_ + nimage_ - 1; - img = image_ + nimage_; - img->name = strdup(name); - } - -// printf("orig->data = %p, width = %d, height = %d\n", orig->data, -// orig->w, orig->h); - - // Copy image data from original image... - img->data = orig->data; - img->w = orig->w; - img->h = orig->h; - img->d = orig->d; - img->copy = 1; - - // Figure out the size of the image... - if (wattr[0]) - { - if (wattr[strlen(wattr) - 1] == '%') - width = atoi(wattr) * (w() - 24) / 100; - else - width = atoi(wattr); - } - else - width = 0; - - if (hattr[0]) - { - if (hattr[strlen(hattr) - 1] == '%') - height = atoi(hattr) * h() / 100; - else - height = atoi(hattr); - } - else - height = 0; - - if (width == 0 && height == 0) - { - // Use image size... - width = img->w; - height = img->h; - } - else if (width == 0) - // Scale width to height - width = img->w * height / img->h; - else if (height == 0) - // Scale height to width - height = img->h * width / img->w; - - // Scale the image as needed... - if (width != img->w && height != img->h) - { - unsigned char *scaled, // Scaled image data - *sptr, // Source image data pointer - *dptr; // Destination image data pointer - int sy, // Source coordinates - dx, dy, // Destination coordinates - xerr, yerr, // X & Y errors - xmod, ymod, // X & Y moduli - xstep, ystep; // X & Y step increments - - - xmod = img->w % width; - xstep = (img->w / width) * img->d; - ymod = img->h % height; - ystep = img->h / height; - - if ((scaled = (unsigned char *)malloc(width * height * img->d)) != NULL) - { - img->copy = 0; - - // Scale the image... - for (dy = height, sy = 0, yerr = height / 2, dptr = scaled; dy > 0; dy --) - { - for (dx = width, xerr = width / 2, - sptr = img->data + sy * img->w * img->d; - dx > 0; - dx --) - { - *dptr++ = sptr[0]; - if (img->d > 1) - { - *dptr++ = sptr[1]; - *dptr++ = sptr[2]; - } - - sptr += xstep; - xerr -= xmod; - if (xerr <= 0) - { - xerr += width; - sptr += img->d; - } - } - - sy += ystep; - yerr -= ymod; - if (yerr <= 0) - { - yerr += height; - sy ++; - } - } - - // Finally, copy the new size and data to the image structure... - img->w = width; - img->h = height; - img->data = scaled; - } - } - - strncpy(img->wattr, wattr, sizeof(img->wattr) - 1); - img->wattr[sizeof(img->wattr) - 1] = '\0'; - strncpy(img->hattr, hattr, sizeof(img->hattr) - 1); - img->hattr[sizeof(img->hattr) - 1] = '\0'; - - if (make) - img->image = new Fl_RGB_Image(img->data, img->w, img->h, img->d); - else - img->image = (Fl_Image *)0; - - nimage_ ++; - -// printf("img->data = %p, width = %d, height = %d\n", img->data, -// img->w, img->h); - - return (img); -} - - -// // 'Fl_Help_View::add_link()' - Add a new link to the list. // @@ -1187,29 +571,27 @@ Fl_Help_View::draw() } else if (strcasecmp(buf, "IMG") == 0) { - Fl_Help_Image *img = (Fl_Help_Image *)0; - int width = 16; - int height = 24; + Fl_Shared_Image *img = 0; + int width, height; char wattr[8], hattr[8]; get_attr(attrs, "WIDTH", wattr, sizeof(wattr)); get_attr(attrs, "HEIGHT", hattr, sizeof(hattr)); + width = atoi(wattr); + height = atoi(hattr); - if (get_attr(attrs, "SRC", attr, sizeof(attr))) - if ((img = add_image(attr, wattr, hattr)) != NULL) - { - if (!img->image) - img = (Fl_Help_Image *)0; - } + if (get_attr(attrs, "SRC", attr, sizeof(attr))) { + img = get_image(attr, width, height); + if (!width) width = img->w(); + if (!height) height = img->h(); + } - if (img) - { - width = img->w; - height = img->h; + if (!width || !height) { + if (get_attr(attrs, "ALT", attr, sizeof(attr)) == NULL) { + strcpy(attr, "IMG"); + } } - else if (get_attr(attrs, "ALT", attr, sizeof(attr)) == NULL) - strcpy(attr, "IMG"); ww = width; @@ -1227,11 +609,8 @@ Fl_Help_View::draw() } if (img) - img->image->draw(xx + x(), - yy + y() - fl_height() + fl_descent() + 2); - else - broken_image->draw(xx + x(), - yy + y() - fl_height() + fl_descent() + 2); + img->draw(xx + x(), + yy + y() - fl_height() + fl_descent() + 2); xx += ww; if ((height + 2) > hh) @@ -1353,29 +732,6 @@ Fl_Help_View::draw() // -// 'Fl_Help_View::find_image()' - Find an image by name -// - -Fl_Help_Image * // O - Image or NULL if not found -Fl_Help_View::find_image(const char *name, // I - Path and name of image - const char *wattr, // I - Width attribute of image - const char *hattr) // I - Height attribute of image -{ - int i; // Looping var - Fl_Help_Image *img; // Current image - - - for (i = nimage_, img = image_; i > 0; i --, img ++) - if (strcmp(img->name, name) == 0 && - strcmp(img->wattr, wattr) == 0 && - strcmp(img->hattr, hattr) == 0) - return (img); - - return ((Fl_Help_Image *)0); -} - - -// // 'Fl_Help_View::format()' - Format the help text. // @@ -1425,21 +781,6 @@ Fl_Help_View::format() if (!value_) return; - // Flush images that are scaled by percentage... - for (i = 0; i < nimage_; i ++) - if (strchr(image_[i].wattr, '%') != NULL || - strchr(image_[i].hattr, '%') != NULL) - { - // Flush this one... - free(image_[i].name); - free(image_[i].data); - delete image_[i].image; - nimage_ --; - if (i < nimage_) - memcpy(image_ + i, image_ + i + 1, (nimage_ - i) * sizeof(Fl_Help_Image)); - i --; - } - // Setup for formatting... initfont(font, size); @@ -1871,26 +1212,21 @@ Fl_Help_View::format() popfont(font, size); else if (strcasecmp(buf, "IMG") == 0) { - Fl_Help_Image *img = (Fl_Help_Image *)0; - int width = 16; - int height = 24; + Fl_Shared_Image *img = 0; + int width; + int height; get_attr(attrs, "WIDTH", wattr, sizeof(wattr)); get_attr(attrs, "HEIGHT", hattr, sizeof(hattr)); + width = atoi(wattr); + height = atoi(hattr); - if (get_attr(attrs, "SRC", attr, sizeof(attr))) - if ((img = add_image(attr, wattr, hattr)) != (Fl_Help_Image *)0 && - img->image == NULL) - img = (Fl_Help_Image *)0; - - if (img) - { - width = img->w; - height = img->h; + if (get_attr(attrs, "SRC", attr, sizeof(attr))) { + img = get_image(attr, width, height); + width = img->w(); + height = img->h(); } - else if (get_attr(attrs, "ALT", attr, sizeof(attr)) == NULL) - strcpy(attr, "IMG"); ww = width; @@ -2320,26 +1656,25 @@ Fl_Help_View::format_table(int *table_width, // O - Total table width popfont(font, size); else if (strcasecmp(buf, "IMG") == 0 && incell) { - Fl_Help_Image *img = (Fl_Help_Image *)0; + Fl_Shared_Image *img = 0; + int iwidth, iheight; get_attr(attrs, "WIDTH", wattr, sizeof(wattr)); get_attr(attrs, "HEIGHT", hattr, sizeof(hattr)); + iwidth = atoi(wattr); + iheight = atoi(hattr); - if (get_attr(attrs, "SRC", attr, sizeof(attr))) - if ((img = add_image(attr, wattr, hattr)) != (Fl_Help_Image *)0 && - img->image == NULL) - img = (Fl_Help_Image *)0; - - if (img) - temp_width = img->w; - else - temp_width = 16; + if (get_attr(attrs, "SRC", attr, sizeof(attr))) { + img = get_image(attr, iwidth, iheight); + iwidth = img->w(); + iheight = img->h(); + } - if (temp_width > minwidths[column]) - minwidths[column] = temp_width; + if (iwidth > minwidths[column]) + minwidths[column] = iwidth; - width += temp_width; + width += iwidth; if (needspace) width += (int)fl_width(' '); @@ -2577,7 +1912,7 @@ Fl_Help_View::get_attr(const char *p, // I - Pointer to start of attributes Fl_Color // O - Color value Fl_Help_View::get_color(const char *n, // I - Color name - Fl_Color c) // I - Default color value + Fl_Color c) // I - Default color value { int rgb, r, g, b; // RGB values @@ -2639,6 +1974,47 @@ Fl_Help_View::get_color(const char *n, // I - Color name // +// 'Fl_Help_View::get_image()' - Get an inline image. +// + +Fl_Shared_Image * +Fl_Help_View::get_image(const char *name, int W, int H) { + const char *localname; // Local filename + char dir[1024]; // Current directory + char temp[1024], // Temporary filename + *tempptr; // Pointer into temporary name + + // See if the image can be found... + if (strchr(directory_, ':') != NULL && strchr(name, ':') == NULL) { + if (name[0] == '/') { + strcpy(temp, directory_); + if ((tempptr = strrchr(strchr(directory_, ':') + 3, '/')) != NULL) strcpy(tempptr, name); + else strcat(temp, name); + } else sprintf(temp, "%s/%s", directory_, name); + + if (link_) localname = (*link_)(this, temp); + else localname = temp; + } else if (name[0] != '/' && strchr(name, ':') == NULL) { + if (directory_[0]) sprintf(temp, "%s/%s", directory_, name); + else { + getcwd(dir, sizeof(dir)); + sprintf(temp, "file:%s/%s", dir, name); + } + + if (link_) localname = (*link_)(this, temp); + else localname = temp; + } else if (link_) localname = (*link_)(this, name); + else localname = name; + + if (!localname) return 0; + + if (strncmp(localname, "file:", 5) == 0) localname += 5; + + return Fl_Shared_Image::get(localname, W, H); +} + + +// // 'Fl_Help_View::handle()' - Handle events in the widget. // @@ -2743,10 +2119,10 @@ Fl_Help_View::handle(int event) // I - Event to handle // Fl_Help_View::Fl_Help_View(int xx, // I - Left position - int yy, // I - Top position - int ww, // I - Width in pixels - int hh, // I - Height in pixels - const char *l) + int yy, // I - Top position + int ww, // I - Width in pixels + int hh, // I - Height in pixels + const char *l) : Fl_Group(xx, yy, ww, hh, l), scrollbar_(xx + ww - 17, yy, 17, hh) { @@ -2759,13 +2135,6 @@ Fl_Help_View::Fl_Help_View(int xx, // I - Left position nblocks_ = 0; blocks_ = (Fl_Help_Block *)0; - nimage_ = 0; - aimage_ = 0; - image_ = (Fl_Help_Image *)0; - - if (!broken_image) - broken_image = new Fl_Pixmap((char **)broken_xpm); - alinks_ = 0; nlinks_ = 0; links_ = (Fl_Help_Link *)0; @@ -2800,10 +2169,6 @@ Fl_Help_View::Fl_Help_View(int xx, // I - Left position Fl_Help_View::~Fl_Help_View() { - int i; // Looping var - Fl_Help_Image *img; // Current image - - if (nblocks_) free(blocks_); if (nlinks_) @@ -2812,16 +2177,6 @@ Fl_Help_View::~Fl_Help_View() free(targets_); if (value_) free((void *)value_); - if (image_) - { - for (i = nimage_, img = image_; i > 0; i --, img ++) - { - delete img->image; - if (!img->copy) - free(img->data); - free(img->name); - } - } } @@ -2910,231 +2265,6 @@ Fl_Help_View::load(const char *f)// I - Filename to load (may also have target) // -// 'Fl_Help_View::load_gif()' - Load a GIF image file... -// - -int // O - 0 = success, -1 = fail -Fl_Help_View::load_gif(Fl_Help_Image *img,// I - Image pointer - FILE *fp)// I - File to load from -{ - unsigned char buf[1024]; // Input buffer - gif_cmap_t cmap; // Colormap - int ncolors, // Bits per pixel - transparent; // Transparent color index - - - // Read the header; we already know it is a GIF file... - fread(buf, 13, 1, fp); - - img->w = (buf[7] << 8) | buf[6]; - img->h = (buf[9] << 8) | buf[8]; - ncolors = 2 << (buf[10] & 0x07); - - if (buf[10] & GIF_COLORMAP) - if (!gif_read_cmap(fp, ncolors, cmap)) - return (0); - - transparent = -1; - - for (;;) - { - switch (getc(fp)) - { - case ';' : // End of image - return (0); // Early end of file - - case '!' : // Extension record - buf[0] = getc(fp); - if (buf[0] == 0xf9) // Graphic Control Extension - { - gif_get_block(fp, buf); - if (buf[0] & 1) // Get transparent color index - transparent = buf[3]; - } - - while (gif_get_block(fp, buf) != 0); - break; - - case ',' : // Image data - fread(buf, 9, 1, fp); - - if (buf[8] & GIF_COLORMAP) - { - ncolors = 2 << (buf[8] & 0x07); - - if (!gif_read_cmap(fp, ncolors, cmap)) - return (0); - } - - if (transparent >= 0) - { - unsigned rgba = fltk_colors[bgcolor_]; - - - // Map transparent color to background color... - cmap[transparent][0] = rgba >> 24; - cmap[transparent][1] = rgba >> 16; - cmap[transparent][2] = rgba >> 8; - } - - img->w = (buf[5] << 8) | buf[4]; - img->h = (buf[7] << 8) | buf[6]; - img->d = 3; - img->data = (unsigned char *)malloc(img->w * img->h * img->d); - if (img->data == NULL) - return (0); - - return (gif_read_image(fp, img, cmap, buf[8] & GIF_INTERLACE)); - } - } -} - - -#ifdef HAVE_LIBJPEG -// -// 'Fl_Help_View::load_jpeg()' - Load a JPEG image file. -// - -int // O - 0 = success, -1 = fail -Fl_Help_View::load_jpeg(Fl_Help_Image *img, // I - Image pointer - FILE *fp) // I - File to load from -{ - struct jpeg_decompress_struct cinfo; // Decompressor info - struct jpeg_error_mgr jerr; // Error handler info - JSAMPROW row; // Sample row pointer - - - cinfo.err = jpeg_std_error(&jerr); - jpeg_create_decompress(&cinfo); - jpeg_stdio_src(&cinfo, fp); - jpeg_read_header(&cinfo, 1); - - cinfo.quantize_colors = 0; - cinfo.out_color_space = JCS_RGB; - cinfo.out_color_components = 3; - cinfo.output_components = 3; - - jpeg_calc_output_dimensions(&cinfo); - - img->w = cinfo.output_width; - img->h = cinfo.output_height; - img->d = cinfo.output_components; - img->data = (unsigned char *)malloc(img->w * img->h * img->d); - - if (img->data == NULL) - { - jpeg_destroy_decompress(&cinfo); - return (0); - } - - jpeg_start_decompress(&cinfo); - - while (cinfo.output_scanline < cinfo.output_height) - { - row = (JSAMPROW)(img->data + - cinfo.output_scanline * cinfo.output_width * - cinfo.output_components); - jpeg_read_scanlines(&cinfo, &row, (JDIMENSION)1); - } - - jpeg_finish_decompress(&cinfo); - jpeg_destroy_decompress(&cinfo); - - return (1); -} -#endif // HAVE_LIBJPEG - - -#ifdef HAVE_LIBPNG -// -// 'Fl_Help_View::load_png()' - Load a PNG image file. -// - -int // O - 0 = success, -1 = fail -Fl_Help_View::load_png(Fl_Help_Image *img,// I - Image pointer - FILE *fp) // I - File to read from -{ - int i; // Looping var - png_structp pp; // PNG read pointer - png_infop info; // PNG info pointers - png_bytep *rows; // PNG row pointers - png_color_16 bg; // Background color - - - // Setup the PNG data structures... - pp = png_create_read_struct(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL); - info = png_create_info_struct(pp); - - // Initialize the PNG read "engine"... - png_init_io(pp, fp); - - // Get the image dimensions and convert to grayscale or RGB... - png_read_info(pp, info); - - if (info->color_type == PNG_COLOR_TYPE_PALETTE) - png_set_expand(pp); - - if (info->color_type & PNG_COLOR_MASK_COLOR) - img->d = 3; - else - img->d = 1; - - if ((info->color_type & PNG_COLOR_MASK_ALPHA) || info->num_trans) - img->d ++; - - if (info->bit_depth < 8) - { - png_set_packing(pp); - png_set_expand(pp); - } - else if (info->bit_depth == 16) - png_set_strip_16(pp); - -#if defined(HAVE_PNG_GET_VALID) && defined(HAVE_SET_TRNS_TO_ALPHA) - // Handle transparency... - if (png_get_valid(pp, info, PNG_INFO_tRNS)) - png_set_tRNS_to_alpha(pp); -#endif // HAVE_PNG_GET_VALID && HAVE_SET_TRNS_TO_ALPHA - - img->w = (int)info->width; - img->h = (int)info->height; - img->data = (unsigned char *)malloc(img->w * img->h * img->d); - - // Background color... - unsigned rgba = fltk_colors[bgcolor_]; - - bg.red = 65535 * (rgba >> 24) / 255; - bg.green = 65535 * ((rgba >> 16) & 255) / 255; - bg.blue = 65535 * ((rgba >> 8) & 255) / 255; - - png_set_background(pp, &bg, PNG_BACKGROUND_GAMMA_SCREEN, 0, 1.0); - - // Allocate pointers... - rows = (png_bytep *)calloc(info->height, sizeof(png_bytep)); - - for (i = 0; i < (int)info->height; i ++) - rows[i] = img->data + i * img->w * img->d; - - // Read the image, handling interlacing as needed... - for (i = png_set_interlace_handling(pp); i > 0; i --) - png_read_rows(pp, rows, NULL, img->h); - - // Free memory and return... - free(rows); - - png_read_end(pp, info); -# ifdef HAVE_PNG_READ_DESTROY - png_read_destroy(pp, info, NULL); -# else - png_destroy_read_struct(&pp, &info, NULL); -# endif // HAVE_PNG_READ_DESTROY - - return (1); -} -#endif // HAVE_LIBPNG - - -// // 'Fl_Help_View::resize()' - Resize the help widget. // @@ -3237,351 +2367,6 @@ Fl_Help_View::compare_blocks(const void *a, // I - First block // -// 'gif_read_cmap()' - Read the colormap from a GIF file... -// - -static int // O - -1 = error, 0 = success -gif_read_cmap(FILE *fp, // I - File to read from - int ncolors, // I - Number of colors - gif_cmap_t cmap) // O - Colormap -{ - // Read the colormap... - if (fread(cmap, 3, ncolors, fp) < (size_t)ncolors) - return (0); - - return (1); -} - - -// -// 'gif_get_block()' - Read a GIF data block... -// - -static int // O - Number characters read -gif_get_block(FILE *fp, // I - File to read from - unsigned char *buf) // I - Input buffer -{ - int count; // Number of character to read - - - // Read the count byte followed by the data from the file... - if ((count = getc(fp)) == EOF) - { - gif_eof = 1; - return (-1); - } - else if (count == 0) - gif_eof = 1; - else if (fread(buf, 1, count, fp) < (size_t)count) - { - gif_eof = 1; - return (-1); - } - else - gif_eof = 0; - - return (count); -} - - -// -// 'gif_get_code()' - Get a LZW code from the file... -// - -static int // O - LZW code -gif_get_code(FILE *fp, // I - File to read from - int code_size, // I - Size of code in bits - int first_time) // I - 1 = first time, 0 = not first time -{ - unsigned i, j, // Looping vars - ret; // Return value - int count; // Number of bytes read - static unsigned char buf[280]; // Input buffer - static unsigned curbit, // Current bit - lastbit, // Last bit in buffer - done, // Done with this buffer? - last_byte; // Last byte in buffer - static unsigned bits[8] = // Bit masks for codes - { - 0x01, 0x02, 0x04, 0x08, - 0x10, 0x20, 0x40, 0x80 - }; - - - if (first_time) - { - // Just initialize the input buffer... - curbit = 0; - lastbit = 0; - done = 0; - - return (0); - } - - - if ((curbit + code_size) >= lastbit) - { - // Don't have enough bits to hold the code... - if (done) - return (-1); // Sorry, no more... - - // Move last two bytes to front of buffer... - if (last_byte > 1) - { - buf[0] = buf[last_byte - 2]; - buf[1] = buf[last_byte - 1]; - last_byte = 2; - } - else if (last_byte == 1) - { - buf[0] = buf[last_byte - 1]; - last_byte = 1; - } - - // Read in another buffer... - if ((count = gif_get_block (fp, buf + last_byte)) <= 0) - { - // Whoops, no more data! - done = 1; - return (-1); - } - - // Update buffer state... - curbit = (curbit - lastbit) + 8 * last_byte; - last_byte += count; - lastbit = last_byte * 8; - } - - ret = 0; - for (ret = 0, i = curbit + code_size - 1, j = code_size; - j > 0; - i --, j --) - ret = (ret << 1) | ((buf[i / 8] & bits[i & 7]) != 0); - - curbit += code_size; - - return ret; -} - - -// -// 'gif_read_lzw()' - Read a byte from the LZW stream... -// - -static int // I - Byte from stream -gif_read_lzw(FILE *fp, // I - File to read from - int first_time, // I - 1 = first time, 0 = not first time - int input_code_size) // I - Code size in bits -{ - int i, // Looping var - code, // Current code - incode; // Input code - static short fresh = 0, // 1 = empty buffers - code_size, // Current code size - set_code_size, // Initial code size set - max_code, // Maximum code used - max_code_size, // Maximum code size - firstcode, // First code read - oldcode, // Last code read - clear_code, // Clear code for LZW input - end_code, // End code for LZW input - table[2][4096], // String table - stack[8192], // Output stack - *sp; // Current stack pointer - - - if (first_time) - { - // Setup LZW state... - set_code_size = input_code_size; - code_size = set_code_size + 1; - clear_code = 1 << set_code_size; - end_code = clear_code + 1; - max_code_size = 2 * clear_code; - max_code = clear_code + 2; - - // Initialize input buffers... - gif_get_code(fp, 0, 1); - - // Wipe the decompressor table... - fresh = 1; - - for (i = 0; i < clear_code; i ++) - { - table[0][i] = 0; - table[1][i] = i; - } - - for (; i < 4096; i ++) - table[0][i] = table[1][0] = 0; - - sp = stack; - - return (0); - } - else if (fresh) - { - fresh = 0; - - do - firstcode = oldcode = gif_get_code(fp, code_size, 0); - while (firstcode == clear_code); - - return (firstcode); - } - - if (sp > stack) - return (*--sp); - - while ((code = gif_get_code (fp, code_size, 0)) >= 0) - { - if (code == clear_code) - { - for (i = 0; i < clear_code; i ++) - { - table[0][i] = 0; - table[1][i] = i; - } - - for (; i < 4096; i ++) - table[0][i] = table[1][i] = 0; - - code_size = set_code_size + 1; - max_code_size = 2 * clear_code; - max_code = clear_code + 2; - - sp = stack; - - firstcode = oldcode = gif_get_code(fp, code_size, 0); - - return (firstcode); - } - else if (code == end_code) - { - unsigned char buf[260]; - - - if (!gif_eof) - while (gif_get_block(fp, buf) > 0); - - return (-2); - } - - incode = code; - - if (code >= max_code) - { - *sp++ = firstcode; - code = oldcode; - } - - while (code >= clear_code) - { - *sp++ = table[1][code]; - if (code == table[0][code]) - return (255); - - code = table[0][code]; - } - - *sp++ = firstcode = table[1][code]; - code = max_code; - - if (code < 4096) - { - table[0][code] = oldcode; - table[1][code] = firstcode; - max_code ++; - - if (max_code >= max_code_size && max_code_size < 4096) - { - max_code_size *= 2; - code_size ++; - } - } - - oldcode = incode; - - if (sp > stack) - return (*--sp); - } - - return (code); -} - - -// -// 'gif_read_image()' - Read a GIF image stream... -// - -static int // I - 0 = success, -1 = failure -gif_read_image(FILE *fp, // I - Input file - Fl_Help_Image *img, // I - Image pointer - gif_cmap_t cmap, // I - Colormap - int interlace) // I - Non-zero = interlaced image -{ - unsigned char code_size, // Code size - *temp; // Current pixel - int xpos, // Current X position - ypos, // Current Y position - pass; // Current pass - int pixel; // Current pixel - static int xpasses[4] = { 8, 8, 4, 2 }, - ypasses[5] = { 0, 4, 2, 1, 999999 }; - - - xpos = 0; - ypos = 0; - pass = 0; - code_size = getc(fp); - - if (gif_read_lzw(fp, 1, code_size) < 0) - return (0); - - temp = img->data; - - while ((pixel = gif_read_lzw(fp, 0, code_size)) >= 0) - { - temp[0] = cmap[pixel][0]; - - if (img->d > 1) - { - temp[1] = cmap[pixel][1]; - temp[2] = cmap[pixel][2]; - } - - xpos ++; - temp += img->d; - if (xpos == img->w) - { - xpos = 0; - - if (interlace) - { - ypos += xpasses[pass]; - temp += (xpasses[pass] - 1) * img->w * img->d; - - if (ypos >= img->h) - { - pass ++; - - ypos = ypasses[pass]; - temp = img->data + ypos * img->w * img->d; - } - } - else - ypos ++; - } - - if (ypos >= img->h) - break; - } - - return (1); -} - - -// // 'scrollbar_callback()' - A callback for the scrollbar. // @@ -3593,5 +2378,5 @@ scrollbar_callback(Fl_Widget *s, void *) // -// End of "$Id: Fl_Help_View.cxx,v 1.1.2.12 2001/11/22 13:56:10 easysw Exp $". +// End of "$Id: Fl_Help_View.cxx,v 1.1.2.13 2001/11/24 02:46:19 easysw Exp $". // |