swatches.cpp revision 8df0cf00f300e994c28dd23282e4d7a815d46229
/*
* A simple panel for color swatches
*
* Authors:
* Jon A. Cruz
*
* Copyright (C) 2005 Jon A. Cruz
*
* Released under GNU GPL, read the file 'COPYING' for more information
*/
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <errno.h>
#include <gtk/gtkdialog.h> //for GTK_RESPONSE* types
#include <gtk/gtkdnd.h>
#include <glibmm/i18n.h>
#include "inkscape.h"
#include "document.h"
#include "desktop-handles.h"
#include "extension/db.h"
#include "inkscape.h"
#include "svg/svg.h"
#include "desktop-style.h"
#include "io/sys.h"
#include "path-prefix.h"
#include "swatches.h"
#include "eek-preview.h"
namespace Inkscape {
namespace UI {
namespace Dialogs {
SwatchesPanel* SwatchesPanel::instance = 0;
ColorItem::ColorItem( unsigned int r, unsigned int g, unsigned int b, Glib::ustring& name ) :
_r(r),
_g(g),
_b(b),
_name(name)
{
}
ColorItem::~ColorItem()
{
}
ColorItem::ColorItem(ColorItem const &other) :
Inkscape::UI::Previewable()
{
if ( this != &other ) {
*this = other;
}
}
ColorItem &ColorItem::operator=(ColorItem const &other)
{
if ( this != &other ) {
_r = other._r;
_g = other._g;
_b = other._b;
_name = other._name;
}
return *this;
}
typedef enum {
XCOLOR_DATA = 0,
TEXT_DATA
} colorFlavorType;
static const GtkTargetEntry color_entries[] = {
{"application/x-color", 0, XCOLOR_DATA},
{"text/plain", 0, TEXT_DATA},
};
static void dragGetColorData( GtkWidget *widget,
GdkDragContext *drag_context,
GtkSelectionData *data,
guint info,
guint time,
gpointer user_data)
{
static GdkAtom typeXColor = gdk_atom_intern("application/x-color", FALSE);
static GdkAtom typeText = gdk_atom_intern("text/plain", FALSE);
ColorItem* item = reinterpret_cast<ColorItem*>(user_data);
if ( info == 1 ) {
gchar* tmp = g_strdup_printf("#%02x%02x%02x", item->_r, item->_g, item->_b);
gtk_selection_data_set( data,
typeText,
8, // format
(guchar*)tmp,
strlen((const char*)tmp) + 1);
g_free(tmp);
tmp = 0;
} else {
guint16 tmp[4];
tmp[0] = (item->_r << 8) | item->_r;
tmp[1] = (item->_g << 8) | item->_g;
tmp[2] = (item->_b << 8) | item->_b;
tmp[3] = 0xffff;
gtk_selection_data_set( data,
typeXColor,
16, // format
reinterpret_cast<const guchar*>(tmp),
(3+1) * 2);
}
}
//"drag-drop"
gboolean dragDropColorData( GtkWidget *widget,
GdkDragContext *drag_context,
gint x,
gint y,
guint time,
gpointer user_data)
{
// TODO finish
return TRUE;
}
static void bouncy( GtkWidget* widget, gpointer callback_data ) {
ColorItem* item = reinterpret_cast<ColorItem*>(callback_data);
if ( item ) {
item->buttonClicked(false);
}
}
static void bouncy2( GtkWidget* widget, gint arg1, gpointer callback_data ) {
ColorItem* item = reinterpret_cast<ColorItem*>(callback_data);
if ( item ) {
item->buttonClicked(true);
}
}
Gtk::Widget* ColorItem::getPreview(PreviewStyle style, ViewType view, Gtk::BuiltinIconSize size)
{
Gtk::Widget* widget = 0;
if ( style == PREVIEW_STYLE_BLURB ) {
Gtk::Label *lbl = new Gtk::Label(_name);
lbl->set_alignment(Gtk::ALIGN_LEFT, Gtk::ALIGN_CENTER);
widget = lbl;
} else {
Glib::ustring blank(" ");
if ( size == Gtk::ICON_SIZE_MENU ) {
blank = " ";
}
GtkWidget* eekWidget = eek_preview_new();
EekPreview * preview = EEK_PREVIEW(eekWidget);
Gtk::Widget* newBlot = Glib::wrap(eekWidget);
eek_preview_set_color( preview, (_r << 8)|_r, (_g << 8)|_g, (_b << 8)|_b);
eek_preview_set_details( preview, (::PreviewStyle)style, (::ViewType)view, (::GtkIconSize)size );
GValue val = {0, {{0}, {0}}};
g_value_init( &val, G_TYPE_BOOLEAN );
g_value_set_boolean( &val, FALSE );
g_object_set_property( G_OBJECT(preview), "focus-on-click", &val );
/*
Gtk::Button *btn = new Gtk::Button(blank);
Gdk::Color color;
color.set_rgb((_r << 8)|_r, (_g << 8)|_g, (_b << 8)|_b);
btn->modify_bg(Gtk::STATE_NORMAL, color);
btn->modify_bg(Gtk::STATE_ACTIVE, color);
btn->modify_bg(Gtk::STATE_PRELIGHT, color);
btn->modify_bg(Gtk::STATE_SELECTED, color);
Gtk::Widget* newBlot = btn;
*/
tips.set_tip((*newBlot), _name);
/*
newBlot->signal_clicked().connect( sigc::mem_fun(*this, &ColorItem::buttonClicked) );
sigc::signal<void> type_signal_something;
*/
g_signal_connect( G_OBJECT(newBlot->gobj()),
"clicked",
G_CALLBACK(bouncy),
this);
g_signal_connect( G_OBJECT(newBlot->gobj()),
"alt-clicked",
G_CALLBACK(bouncy2),
this);
gtk_drag_source_set( GTK_WIDGET(newBlot->gobj()),
GDK_BUTTON1_MASK,
color_entries,
G_N_ELEMENTS(color_entries),
GdkDragAction(GDK_ACTION_MOVE | GDK_ACTION_COPY) );
g_signal_connect( G_OBJECT(newBlot->gobj()),
"drag-data-get",
G_CALLBACK(dragGetColorData),
this);
g_signal_connect( G_OBJECT(newBlot->gobj()),
"drag-drop",
G_CALLBACK(dragDropColorData),
this);
widget = newBlot;
}
return widget;
}
void ColorItem::buttonClicked(bool secondary)
{
SPDesktop *desktop = SP_ACTIVE_DESKTOP;
if (desktop) {
char const * attrName = secondary ? "stroke" : "fill";
guint32 rgba = (_r << 24) | (_g << 16) | (_b << 8) | 0xff;
gchar c[64];
sp_svg_write_color(c, 64, rgba);
SPCSSAttr *css = sp_repr_css_attr_new();
sp_repr_css_set_property( css, attrName, c );
sp_desktop_set_style(desktop, css);
sp_repr_css_attr_unref(css);
sp_document_done (SP_DT_DOCUMENT (desktop));
}
}
static char* trim( char* str ) {
char* ret = str;
while ( *str && (*str == ' ' || *str == '\t') ) {
str++;
}
ret = str;
while ( *str ) {
str++;
}
str--;
while ( str > ret && ( *str == ' ' || *str == '\t' ) || *str == '\r' || *str == '\n' ) {
*str-- = 0;
}
return ret;
}
void skipWhitespace( char*& str ) {
while ( *str == ' ' || *str == '\t' ) {
str++;
}
}
bool parseNum( char*& str, int& val ) {
val = 0;
while ( '0' <= *str && *str <= '9' ) {
val = val * 10 + (*str - '0');
str++;
}
bool retval = !(*str == 0 || *str == ' ' || *str == '\t' || *str == '\r' || *str == '\n');
return retval;
}
class JustForNow
{
public:
JustForNow() : _prefWidth(0) {}
Glib::ustring _name;
int _prefWidth;
std::vector<ColorItem*> _colors;
};
static std::vector<JustForNow*> possible;
static void loadPaletteFile( gchar const *filename )
{
char block[1024];
FILE *f = Inkscape::IO::fopen_utf8name( filename, "r" );
if ( f ) {
char* result = fgets( block, sizeof(block), f );
if ( result ) {
if ( strncmp( "GIMP Palette", block, 12 ) == 0 ) {
bool inHeader = true;
bool hasErr = false;
JustForNow *onceMore = new JustForNow();
do {
result = fgets( block, sizeof(block), f );
block[sizeof(block) - 1] = 0;
if ( result ) {
if ( block[0] == '#' ) {
// ignore comment
} else {
char *ptr = block;
// very simple check for header versus entry
while ( *ptr == ' ' || *ptr == '\t' ) {
ptr++;
}
if ( *ptr == 0 ) {
// blank line. skip it.
} else if ( '0' <= *ptr && *ptr <= '9' ) {
// should be an entry link
inHeader = false;
ptr = block;
Glib::ustring name("");
int r = 0;
int g = 0;
int b = 0;
skipWhitespace(ptr);
if ( *ptr ) {
hasErr = parseNum(ptr, r);
if ( !hasErr ) {
skipWhitespace(ptr);
hasErr = parseNum(ptr, g);
}
if ( !hasErr ) {
skipWhitespace(ptr);
hasErr = parseNum(ptr, b);
}
if ( !hasErr && *ptr ) {
char* n = trim(ptr);
if (n != NULL) {
name = n;
}
}
if ( !hasErr ) {
// Add the entry now
Glib::ustring nameStr(name);
ColorItem* item = new ColorItem( r, g, b, nameStr );
onceMore->_colors.push_back(item);
}
} else {
hasErr = true;
}
} else {
if ( !inHeader ) {
// Hmmm... probably bad. Not quite the format we want?
hasErr = true;
} else {
char* sep = strchr(result, ':');
if ( sep ) {
*sep = 0;
char* val = trim(sep + 1);
char* name = trim(result);
if ( *name ) {
if ( strcmp( "Name", name ) == 0 )
{
onceMore->_name = val;
}
else if ( strcmp( "Columns", name ) == 0 )
{
gchar* endPtr = 0;
guint64 numVal = g_ascii_strtoull( val, &endPtr, 10 );
if ( (numVal == G_MAXUINT64) && (ERANGE == errno) ) {
// overflow
} else if ( (numVal == 0) && (endPtr == val) ) {
// failed conversion
} else {
onceMore->_prefWidth = numVal;
}
}
} else {
// error
hasErr = true;
}
} else {
// error
hasErr = true;
}
}
}
}
}
} while ( result && !hasErr );
if ( !hasErr ) {
possible.push_back(onceMore);
} else {
delete onceMore;
}
}
}
fclose(f);
}
}
static void loadEmUp()
{
static bool beenHere = false;
if ( !beenHere ) {
beenHere = true;
std::list<gchar *> sources;
sources.push_back( profile_path("palettes") );
sources.push_back( g_strdup(INKSCAPE_PALETTESDIR) );
// Use this loop to iterate through a list of possible document locations.
while (!sources.empty()) {
gchar *dirname = sources.front();
if ( Inkscape::IO::file_test( dirname, (GFileTest)(G_FILE_TEST_EXISTS | G_FILE_TEST_IS_DIR) ) ) {
GError *err = 0;
GDir *directory = g_dir_open(dirname, 0, &err);
if (!directory) {
gchar *safeDir = Inkscape::IO::sanitizeString(dirname);
g_warning(_("Palettes directory (%s) is unavailable."), safeDir);
g_free(safeDir);
} else {
gchar *filename = 0;
while ((filename = (gchar *)g_dir_read_name(directory)) != NULL) {
gchar* full = g_build_filename(dirname, filename, NULL);
if ( !Inkscape::IO::file_test( full, (GFileTest)(G_FILE_TEST_IS_DIR ) ) ) {
loadPaletteFile(full);
}
g_free(full);
}
g_dir_close(directory);
}
}
// toss the dirname
g_free(dirname);
sources.pop_front();
}
}
}
SwatchesPanel& SwatchesPanel::getInstance()
{
if ( !instance ) {
instance = new SwatchesPanel();
}
return *instance;
}
/**
* Constructor
*/
SwatchesPanel::SwatchesPanel() :
Inkscape::UI::Widget::Panel ("dialogs.swatches"),
_holder(0)
{
_holder = new PreviewHolder();
loadEmUp();
if ( !possible.empty() ) {
JustForNow* first = possible.front();
if ( first->_prefWidth > 0 ) {
_holder->setColumnPref( first->_prefWidth );
}
_holder->freezeUpdates();
for ( std::vector<ColorItem*>::iterator it = first->_colors.begin(); it != first->_colors.end(); it++ ) {
_holder->addPreview(*it);
}
_holder->thawUpdates();
Gtk::RadioMenuItem::Group groupOne;
int i = 0;
for ( std::vector<JustForNow*>::iterator it = possible.begin(); it != possible.end(); it++ ) {
JustForNow* curr = *it;
Gtk::RadioMenuItem* single = manage(new Gtk::RadioMenuItem(groupOne, curr->_name));
_regItem( single, 3, i );
i++;
}
}
_getContents()->pack_start(*_holder, Gtk::PACK_EXPAND_WIDGET);
_setTargetFillable(_holder);
show_all_children();
restorePanelPrefs();
}
SwatchesPanel::~SwatchesPanel()
{
}
void SwatchesPanel::setOrientation( Gtk::AnchorType how )
{
// Must call the parent class or bad things might happen
Inkscape::UI::Widget::Panel::setOrientation( how );
if ( _holder )
{
_holder->setOrientation( Gtk::ANCHOR_SOUTH );
}
}
void SwatchesPanel::_handleAction( int setId, int itemId )
{
switch( setId ) {
case 3:
{
if ( itemId >= 0 && itemId < static_cast<int>(possible.size()) ) {
_holder->clear();
JustForNow* curr = possible[itemId];
if ( curr->_prefWidth > 0 ) {
_holder->setColumnPref( curr->_prefWidth );
}
_holder->freezeUpdates();
for ( std::vector<ColorItem*>::iterator it = curr->_colors.begin(); it != curr->_colors.end(); it++ ) {
_holder->addPreview(*it);
}
_holder->thawUpdates();
}
}
break;
}
}
} //namespace Dialogs
} //namespace UI
} //namespace Inkscape
/*
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:encoding=utf-8:textwidth=99 :