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fltk/src/Fl_File_Icon.cxx
Albrecht Schlosser f09e17c3c5 Remove $Id$ tags, update URL's, and more 
- remove obsolete svn '$Id$' tags from all source files
- update .fl files and generated files accordingly
- replace 'http://www.fltk.org' URL's with 'https://...'
- replace bug report URL 'str.php' with 'bugs.php'
- remove trailing whitespace
- fix other whitespace errors flagged by Git
- add and/or fix missing or wrong standard headers
- convert tabs to spaces in all source files

The only relevant code changes are in the fluid/ folder where
some .fl files and other source files were used to generate
the '$Id' headers and footers.
2020-07-06 20:28:20 +02:00

428 lines
11 KiB
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//
// Fl_File_Icon routines.
//
// KDE icon code donated by Maarten De Boer.
//
// Copyright 1999-2010 by Michael Sweet.
//
// This library is free software. Distribution and use rights are outlined in
// the file "COPYING" which should have been included with this file. If this
// file is missing or damaged, see the license at:
//
// https://www.fltk.org/COPYING.php
//
// Please see the following page on how to report bugs and issues:
//
// https://www.fltk.org/bugs.php
//
// Contents:
//
// Fl_File_Icon::Fl_File_Icon() - Create a new file icon.
// Fl_File_Icon::~Fl_File_Icon() - Remove a file icon.
// Fl_File_Icon::add() - Add data to an icon.
// Fl_File_Icon::find() - Find an icon based upon a given file.
// Fl_File_Icon::draw() - Draw an icon.
// Fl_File_Icon::label() - Set the widgets label to an icon.
// Fl_File_Icon::labeltype() - Draw the icon label.
//
//
// Include necessary header files...
//
#include <stdio.h>
#include <stdlib.h>
#include <FL/fl_utf8.h>
#include "flstring.h"
#include <FL/Fl.H>
#include "Fl_System_Driver.H"
#include <FL/Fl_File_Icon.H>
#include <FL/Fl_Widget.H>
#include <FL/fl_draw.H>
#include <FL/filename.H>
//
// Icon cache...
//
Fl_File_Icon *Fl_File_Icon::first_ = (Fl_File_Icon *)0;
// Registers the FL_ICON_LABEL drawing function
Fl_Labeltype fl_define_FL_ICON_LABEL() {
Fl::set_labeltype(_FL_ICON_LABEL, Fl_File_Icon::labeltype, 0);
return _FL_ICON_LABEL;
}
/**
Creates a new Fl_File_Icon with the specified information.
\param[in] p filename pattern
\param[in] t file type
\param[in] nd number of data values
\param[in] d data values
*/
Fl_File_Icon::Fl_File_Icon(const char *p, /* I - Filename pattern */
int t, /* I - File type */
int nd, /* I - Number of data values */
short *d) /* I - Data values */
{
// Initialize the pattern and type...
pattern_ = p;
type_ = t;
// Copy icon data as needed...
if (nd)
{
num_data_ = nd;
alloc_data_ = nd + 1;
data_ = (short *)calloc(sizeof(short), nd + 1);
memcpy(data_, d, nd * sizeof(short));
}
else
{
num_data_ = 0;
alloc_data_ = 0;
}
// And add the icon to the list of icons...
next_ = first_;
first_ = this;
}
/**
The destructor destroys the icon and frees all memory that has been
allocated for it.
*/
Fl_File_Icon::~Fl_File_Icon() {
Fl_File_Icon *current, // Current icon in list
*prev; // Previous icon in list
// Find the icon in the list...
for (current = first_, prev = (Fl_File_Icon *)0;
current != this && current != (Fl_File_Icon *)0;
prev = current, current = current->next_) {/*empty*/}
// Remove the icon from the list as needed...
if (current)
{
if (prev)
prev->next_ = current->next_;
else
first_ = current->next_;
}
// Free any memory used...
if (alloc_data_)
free(data_);
}
/**
Adds a keyword value to the icon array, returning a pointer to it.
\param[in] d data value
*/
short * // O - Pointer to new data value
Fl_File_Icon::add(short d) // I - Data to add
{
short *dptr; // Pointer to new data value
// Allocate/reallocate memory as needed
if ((num_data_ + 1) >= alloc_data_)
{
alloc_data_ += 128;
if (alloc_data_ == 128)
dptr = (short *)malloc(sizeof(short) * alloc_data_);
else
dptr = (short *)realloc(data_, sizeof(short) * alloc_data_);
if (dptr == NULL)
return (NULL);
data_ = dptr;
}
// Store the new data value and return
data_[num_data_++] = d;
data_[num_data_] = END;
return (data_ + num_data_ - 1);
}
/**
Finds an icon that matches the given filename and file type.
\param[in] filename name of file
\param[in] filetype enumerated file type
\return matching file icon or NULL
*/
Fl_File_Icon * // O - Matching file icon or NULL
Fl_File_Icon::find(const char *filename,// I - Name of file */
int filetype) // I - Enumerated file type
{
Fl_File_Icon *current; // Current file in list
const char *name; // Base name of filename
// Get file information if needed...
if (filetype == ANY) {
filetype = Fl::system_driver()->file_type(filename);
}
// Look at the base name in the filename
name = fl_filename_name(filename);
// Loop through the available file types and return any match that
// is found...
for (current = first_; current != (Fl_File_Icon *)0; current = current->next_)
if ((current->type_ == filetype || current->type_ == ANY) &&
(fl_filename_match(filename, current->pattern_) ||
fl_filename_match(name, current->pattern_)))
break;
// Return the match (if any)...
return (current);
}
/**
Draws an icon in the indicated area.
\param[in] x, y, w, h position and size
\param[in] ic icon color
\param[in] active status, default is active [non-zero]
*/
void
Fl_File_Icon::draw(int x, // I - Upper-lefthand X
int y, // I - Upper-lefthand Y
int w, // I - Width of bounding box
int h, // I - Height of bounding box
Fl_Color ic, // I - Icon color...
int active) // I - Active or inactive?
{
Fl_Color c, // Current color
oc; // Outline color
short *d, // Pointer to data
*dend; // End of data...
short *prim; // Pointer to start of primitive...
double scale; // Scale of icon
// Don't try to draw a NULL array!
if (num_data_ == 0)
return;
// Setup the transform matrix as needed...
scale = w < h ? w : h;
fl_push_matrix();
fl_translate((float)x + 0.5 * ((float)w - scale),
(float)y + 0.5 * ((float)h + scale));
fl_scale(scale, -scale);
// Loop through the array until we see an unmatched END...
d = data_;
dend = data_ + num_data_;
prim = NULL;
c = ic;
if (active)
fl_color(c);
else
fl_color(fl_inactive(c));
while (d < dend)
switch (*d)
{
case END :
if (prim)
switch (*prim)
{
case LINE :
fl_end_line();
break;
case CLOSEDLINE :
fl_end_loop();
break;
case POLYGON :
fl_end_complex_polygon();
break;
case OUTLINEPOLYGON :
fl_end_complex_polygon();
oc = (Fl_Color)((((unsigned short *)prim)[1] << 16) |
((unsigned short *)prim)[2]);
if (active)
{
if (oc == FL_ICON_COLOR)
fl_color(ic);
else
fl_color(oc);
}
else
{
if (oc == FL_ICON_COLOR)
fl_color(fl_inactive(ic));
else
fl_color(fl_inactive(oc));
}
fl_begin_loop();
prim += 3;
while (*prim == VERTEX)
{
fl_vertex(prim[1] * 0.0001, prim[2] * 0.0001);
prim += 3;
}
fl_end_loop();
fl_color(c);
break;
}
prim = NULL;
d ++;
break;
case COLOR :
c = (Fl_Color)((((unsigned short *)d)[1] << 16) |
((unsigned short *)d)[2]);
if (c == FL_ICON_COLOR)
c = ic;
if (!active)
c = fl_inactive(c);
fl_color(c);
d += 3;
break;
case LINE :
prim = d;
d ++;
fl_begin_line();
break;
case CLOSEDLINE :
prim = d;
d ++;
fl_begin_loop();
break;
case POLYGON :
prim = d;
d ++;
fl_begin_complex_polygon();
break;
case OUTLINEPOLYGON :
prim = d;
d += 3;
fl_begin_complex_polygon();
break;
case VERTEX :
if (prim)
fl_vertex(d[1] * 0.0001, d[2] * 0.0001);
d += 3;
break;
default : // Ignore invalid data...
d ++;
}
// If we still have an open primitive, close it...
if (prim)
switch (*prim)
{
case LINE :
fl_end_line();
break;
case CLOSEDLINE :
fl_end_loop();
break;
case POLYGON :
fl_end_polygon();
break;
case OUTLINEPOLYGON :
fl_end_polygon();
oc = (Fl_Color)((((unsigned short *)prim)[1] << 16) |
((unsigned short *)prim)[2]);
if (active)
{
if (oc == FL_ICON_COLOR)
fl_color(ic);
else
fl_color(oc);
}
else
{
if (oc == FL_ICON_COLOR)
fl_color(fl_inactive(ic));
else
fl_color(fl_inactive(oc));
}
fl_begin_loop();
prim += 3;
while (*prim == VERTEX)
{
fl_vertex(prim[1] * 0.0001, prim[2] * 0.0001);
prim += 3;
}
fl_end_loop();
fl_color(c);
break;
}
// Restore the transform matrix
fl_pop_matrix();
}
/**
Applies the icon to the widget, registering the Fl_File_Icon
label type as needed.
\param[in] w widget for which this icon will become the label
*/
void Fl_File_Icon::label(Fl_Widget *w) // I - Widget to label
{
w->label(FL_ICON_LABEL, (const char*)this);
}
/**
Draw the icon label.
\param[in] o label data
\param[in] x, y, w, h position and size of label
\param[in] a label alignment [not used]
*/
void
Fl_File_Icon::labeltype(const Fl_Label *o, // I - Label data
int x, // I - X position of label
int y, // I - Y position of label
int w, // I - Width of label
int h, // I - Height of label
Fl_Align a) // I - Label alignment (not used)
{
Fl_File_Icon *icon; // Pointer to icon data
(void)a;
icon = (Fl_File_Icon *)(o->value);
if (icon) icon->draw(x, y, w, h, (Fl_Color)(o->color));
}
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