/* GTK - The GIMP Toolkit * Copyright (C) 2000 Red Hat, Inc. * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the * Free Software Foundation, Inc., 59 Temple Place - Suite 330, * Boston, MA 02111-1307, USA. */ /* * Modified by the GTK+ Team and others 1997-2001. See the AUTHORS * file for a list of people on the GTK+ Team. See the ChangeLog * files for a list of changes. These files are distributed with * GTK+ at ftp://ftp.gtk.org/pub/gtk/. */ #include "gdkconfig.h" #include #include "gdk/gdkkeysyms.h" #include "gtkcolorsel.h" #include "gtkhsv.h" #include "gtkwindow.h" #include "gtkselection.h" #include "gtkdnd.h" #include "gtkdrawingarea.h" #include "gtksignal.h" #include "gtkhbox.h" #include "gtkhbbox.h" #include "gtkrc.h" #include "gtkframe.h" #include "gtktable.h" #include "gtklabel.h" #include "gtkmarshalers.h" #include "gtkpixmap.h" #include "gtkspinbutton.h" #include "gtkrange.h" #include "gtkhscale.h" #include "gtkentry.h" #include "gtkbutton.h" #include "gtkhseparator.h" #include "gtktooltips.h" #include "gtkinvisible.h" #include "gtkmenuitem.h" #include "gtkmain.h" #include "gtksettings.h" #include "gtkintl.h" #include "gtkimage.h" #include /* Number of elements in the custom palatte */ #define GTK_CUSTOM_PALETTE_WIDTH 10 #define GTK_CUSTOM_PALETTE_HEIGHT 2 /* Conversion between 0->1 double and and guint16. See * scale_round() below for more general conversions */ #define SCALE(i) (i / 65535.) #define UNSCALE(d) ((guint16)(d * 65535 + 0.5)) enum { COLOR_CHANGED, LAST_SIGNAL }; enum { PROP_0, PROP_HAS_PALETTE, PROP_HAS_OPACITY_CONTROL, PROP_CURRENT_COLOR, PROP_CURRENT_ALPHA }; enum { COLORSEL_RED = 0, COLORSEL_GREEN = 1, COLORSEL_BLUE = 2, COLORSEL_OPACITY = 3, COLORSEL_HUE, COLORSEL_SATURATION, COLORSEL_VALUE, COLORSEL_NUM_CHANNELS }; typedef struct _ColorSelectionPrivate ColorSelectionPrivate; struct _ColorSelectionPrivate { guint has_opacity : 1; guint has_palette : 1; guint changing : 1; guint default_set : 1; guint default_alpha_set : 1; gdouble color[COLORSEL_NUM_CHANNELS]; gdouble old_color[COLORSEL_NUM_CHANNELS]; GtkWidget *triangle_colorsel; GtkWidget *hue_spinbutton; GtkWidget *sat_spinbutton; GtkWidget *val_spinbutton; GtkWidget *red_spinbutton; GtkWidget *green_spinbutton; GtkWidget *blue_spinbutton; GtkWidget *opacity_slider; GtkWidget *opacity_label; GtkWidget *opacity_entry; GtkWidget *palette_frame; GtkWidget *hex_entry; /* The Palette code */ GtkWidget *custom_palette [GTK_CUSTOM_PALETTE_WIDTH][GTK_CUSTOM_PALETTE_HEIGHT]; /* The color_sample stuff */ GtkWidget *sample_area; GtkWidget *old_sample; GtkWidget *cur_sample; GtkWidget *colorsel; /* Tooltips group */ GtkTooltips *tooltips; /* Window for grabbing on */ GtkWidget *dropper_grab_widget; /* Connection to settings */ gulong settings_connection; }; static void gtk_color_selection_init (GtkColorSelection *colorsel); static void gtk_color_selection_class_init (GtkColorSelectionClass *klass); static void gtk_color_selection_destroy (GtkObject *object); static void update_color (GtkColorSelection *colorsel); static void gtk_color_selection_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec); static void gtk_color_selection_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec); static void gtk_color_selection_realize (GtkWidget *widget); static void gtk_color_selection_unrealize (GtkWidget *widget); static gint gtk_color_selection_get_palette_size (GtkColorSelection *colorsel); static gboolean gtk_color_selection_get_palette_color (GtkColorSelection *colorsel, gint index, GdkColor *color); static void gtk_color_selection_set_palette_color (GtkColorSelection *colorsel, gint index, GdkColor *color); static void gtk_color_selection_unset_palette_color (GtkColorSelection *colorsel, gint index); static GdkGC *get_focus_gc (GtkWidget *drawing_area, gint *focus_width); static void default_noscreen_change_palette_func (const GdkColor *colors, gint n_colors); static void default_change_palette_func (GdkScreen *screen, const GdkColor *colors, gint n_colors); static gpointer parent_class = NULL; static guint color_selection_signals[LAST_SIGNAL] = { 0 }; static gchar* default_colors = "black:white:gray50:red:purple:blue:light blue:green:yellow:orange:lavender:brown:goldenrod4:dodger blue:pink:light green:gray10:gray30:gray75:gray90"; static GtkColorSelectionChangePaletteFunc noscreen_change_palette_hook = default_noscreen_change_palette_func; static GtkColorSelectionChangePaletteWithScreenFunc change_palette_hook = default_change_palette_func; /* The cursor for the dropper */ #define DROPPER_WIDTH 17 #define DROPPER_HEIGHT 17 #define DROPPER_X_HOT 2 #define DROPPER_Y_HOT 16 static char dropper_bits[] = { 0xff, 0x8f, 0x01, 0xff, 0x77, 0x01, 0xff, 0xfb, 0x00, 0xff, 0xf8, 0x00, 0x7f, 0xff, 0x00, 0xff, 0x7e, 0x01, 0xff, 0x9d, 0x01, 0xff, 0xd8, 0x01, 0x7f, 0xd4, 0x01, 0x3f, 0xee, 0x01, 0x1f, 0xff, 0x01, 0x8f, 0xff, 0x01, 0xc7, 0xff, 0x01, 0xe3, 0xff, 0x01, 0xf3, 0xff, 0x01, 0xfd, 0xff, 0x01, 0xff, 0xff, 0x01, }; static char dropper_mask[] = { 0x00, 0x70, 0x00, 0x00, 0xf8, 0x00, 0x00, 0xfc, 0x01, 0x00, 0xff, 0x01, 0x80, 0xff, 0x01, 0x00, 0xff, 0x00, 0x00, 0x7f, 0x00, 0x80, 0x3f, 0x00, 0xc0, 0x3f, 0x00, 0xe0, 0x13, 0x00, 0xf0, 0x01, 0x00, 0xf8, 0x00, 0x00, 0x7c, 0x00, 0x00, 0x3e, 0x00, 0x00, 0x1e, 0x00, 0x00, 0x0d, 0x00, 0x00, 0x02, 0x00, 0x00, }; /* XPM */ static char *picker[] = { /* columns rows colors chars-per-pixel */ "25 25 8 1", " c Gray0", ". c #020202", "X c Gray12", "o c Gray13", "O c Gray52", "+ c #929292", "@ c Gray100", "# c None", /* pixels */ "#########################", "#########################", "#########################", "#########################", "#########################", "################# #####", "################ ####", "################ +###", "############# +###", "############## ++###", "#############+@ +++####", "############+@@@ +######", "###########+@@@ + +######", "##########+@@@ ++#+######", "#########+@@@ ++#########", "########+@@@ ++##########", "#######+@@@ ++###########", "######+@@@ ++############", "######+@@ ++#############", "#####+@ ++##############", "###### +++###############", "#########################", "#########################", "#########################", "#########################" }; /* * * The Sample Color * */ #define SAMPLE_WIDTH 64 #define SAMPLE_HEIGHT 28 static void color_sample_draw_sample (GtkColorSelection *colorsel, int which); static void color_sample_draw_samples (GtkColorSelection *colorsel); static void color_sample_drag_begin (GtkWidget *widget, GdkDragContext *context, gpointer data) { GtkColorSelection *colorsel = data; ColorSelectionPrivate *priv; GtkWidget *window; gdouble colors[4]; gdouble *colsrc; GdkColor bg; gint n, i; priv = colorsel->private_data; window = gtk_window_new (GTK_WINDOW_POPUP); gtk_window_set_screen (GTK_WINDOW (window), gtk_widget_get_screen (widget)); gtk_widget_set_app_paintable (GTK_WIDGET (window), TRUE); gtk_widget_set_usize (window, 48, 32); gtk_widget_realize (window); gtk_object_set_data_full (GTK_OBJECT (widget), "gtk-color-selection-drag-window", window, (GtkDestroyNotify) gtk_widget_destroy); if (widget == priv->old_sample) colsrc = priv->old_color; else colsrc = priv->color; for (i=0, n = COLORSEL_RED; n <= COLORSEL_BLUE; n++) { colors[i++] = colsrc[n]; } if (priv->has_opacity) { colors[i] = colsrc[COLORSEL_OPACITY]; } bg.red = 0xffff * colors[0]; bg.green = 0xffff * colors[1]; bg.blue = 0xffff * colors[2]; gdk_color_alloc (gtk_widget_get_colormap (window), &bg); gdk_window_set_background (window->window, &bg); gtk_drag_set_icon_widget (context, window, -2, -2); } static void color_sample_drag_end (GtkWidget *widget, GdkDragContext *context, gpointer data) { gtk_object_set_data (GTK_OBJECT (widget), "gtk-color-selection-drag-window", NULL); } static void color_sample_drop_handle (GtkWidget *widget, GdkDragContext *context, gint x, gint y, GtkSelectionData *selection_data, guint info, guint time, gpointer data) { GtkColorSelection *colorsel = data; ColorSelectionPrivate *priv; guint16 *vals; gdouble color[4]; priv = colorsel->private_data; /* This is currently a guint16 array of the format: * R * G * B * opacity */ if (selection_data->length < 0) return; if ((selection_data->format != 16) || (selection_data->length != 8)) { g_warning ("Received invalid color data\n"); return; } vals = (guint16 *)selection_data->data; if (widget == priv->cur_sample) { color[0] = (gdouble)vals[0] / 0xffff; color[1] = (gdouble)vals[1] / 0xffff; color[2] = (gdouble)vals[2] / 0xffff; color[3] = (gdouble)vals[3] / 0xffff; gtk_color_selection_set_color (colorsel, color); } } static void color_sample_drag_handle (GtkWidget *widget, GdkDragContext *context, GtkSelectionData *selection_data, guint info, guint time, gpointer data) { GtkColorSelection *colorsel = data; ColorSelectionPrivate *priv; guint16 vals[4]; gdouble *colsrc; priv = colorsel->private_data; if (widget == priv->old_sample) colsrc = priv->old_color; else colsrc = priv->color; vals[0] = colsrc[COLORSEL_RED] * 0xffff; vals[1] = colsrc[COLORSEL_GREEN] * 0xffff; vals[2] = colsrc[COLORSEL_BLUE] * 0xffff; vals[3] = priv->has_opacity ? colsrc[COLORSEL_OPACITY] * 0xffff : 0xffff; gtk_selection_data_set (selection_data, gdk_atom_intern ("application/x-color", FALSE), 16, (guchar *)vals, 8); } /* which = 0 means draw old sample, which = 1 means draw new */ static void color_sample_draw_sample (GtkColorSelection *colorsel, int which) { GtkWidget *da; gint x, y, i, wid, heig, f, n, goff; guchar c[3 * 2], cc[3 * 4], *cp = c; gdouble o; guchar *buf; ColorSelectionPrivate *priv; g_return_if_fail (colorsel != NULL); priv = colorsel->private_data; g_return_if_fail (priv->sample_area != NULL); if (!GTK_WIDGET_DRAWABLE (priv->sample_area)) return; if (which == 0) { da = priv->old_sample; for (n = 0, i = COLORSEL_RED; n < 3; n++, i++) c[n] = (guchar) (UNSCALE (priv->old_color[i]) >> 8); goff = 0; } else { da = priv->cur_sample; for (n = 0, i = COLORSEL_RED; n < 3; n++, i++) c[n] = (guchar) (UNSCALE (priv->color[i]) >> 8); goff = priv->old_sample->allocation.width % 32; } wid = da->allocation.width; heig = da->allocation.height; buf = g_new (guchar, 3 * wid * heig); #if 0 i = COLORSEL_RED; for (n = 0; n < 3; n++) { c[n] = (guchar) (255.0 * priv->old_color[i]); c[n + 3] = (guchar) (255.0 * priv->color[i++]); } #endif if (priv->has_opacity) { o = (which) ? priv->color[COLORSEL_OPACITY] : priv->old_color[COLORSEL_OPACITY]; for (n = 0; n < 3; n++) { cc[n] = (guchar) ((1.0 - o) * 192 + (o * (gdouble) c[n])); cc[n + 3] = (guchar) ((1.0 - o) * 128 + (o * (gdouble) c[n])); } cp = cc; } i = 0; for (y = 0; y < heig; y++) { for (x = 0; x < wid; x++) { if (priv->has_opacity) f = 3 * ((((goff + x) % 32) < 16) ^ ((y % 32) < 16)); else f = 0; for (n = 0; n < 3; n++) buf[i++] = cp[n + f]; } } gdk_draw_rgb_image (da->window, da->style->black_gc, 0, 0, wid, heig, GDK_RGB_DITHER_NORMAL, buf, 3*wid); g_free (buf); } static void color_sample_draw_samples (GtkColorSelection *colorsel) { color_sample_draw_sample (colorsel, 0); color_sample_draw_sample (colorsel, 1); } static gboolean color_old_sample_expose (GtkWidget *da, GdkEventExpose *event, GtkColorSelection *colorsel) { color_sample_draw_sample (colorsel, 0); return FALSE; } static gboolean color_cur_sample_expose (GtkWidget *da, GdkEventExpose *event, GtkColorSelection *colorsel) { color_sample_draw_sample (colorsel, 1); return FALSE; } static void color_sample_setup_dnd (GtkColorSelection *colorsel, GtkWidget *sample) { static const GtkTargetEntry targets[] = { { "application/x-color", 0 } }; ColorSelectionPrivate *priv; priv = colorsel->private_data; gtk_drag_source_set (sample, GDK_BUTTON1_MASK | GDK_BUTTON3_MASK, targets, 1, GDK_ACTION_COPY | GDK_ACTION_MOVE); gtk_signal_connect (GTK_OBJECT (sample), "drag_begin", GTK_SIGNAL_FUNC (color_sample_drag_begin), colorsel); if (sample == priv->cur_sample) { gtk_drag_dest_set (sample, GTK_DEST_DEFAULT_HIGHLIGHT | GTK_DEST_DEFAULT_MOTION | GTK_DEST_DEFAULT_DROP, targets, 1, GDK_ACTION_COPY); gtk_signal_connect (GTK_OBJECT (sample), "drag_end", GTK_SIGNAL_FUNC (color_sample_drag_end), colorsel); } gtk_signal_connect (GTK_OBJECT (sample), "drag_data_get", GTK_SIGNAL_FUNC (color_sample_drag_handle), colorsel); gtk_signal_connect (GTK_OBJECT (sample), "drag_data_received", GTK_SIGNAL_FUNC (color_sample_drop_handle), colorsel); } static void color_sample_new (GtkColorSelection *colorsel) { ColorSelectionPrivate *priv; priv = colorsel->private_data; priv->sample_area = gtk_hbox_new (FALSE, 0); priv->old_sample = gtk_drawing_area_new (); priv->cur_sample = gtk_drawing_area_new (); /* We need enter/leave to do tooltips */ gtk_widget_add_events (priv->old_sample, GDK_ENTER_NOTIFY_MASK | GDK_LEAVE_NOTIFY_MASK); gtk_widget_add_events (priv->cur_sample, GDK_ENTER_NOTIFY_MASK | GDK_LEAVE_NOTIFY_MASK); gtk_box_pack_start (GTK_BOX (priv->sample_area), priv->old_sample, TRUE, TRUE, 0); gtk_box_pack_start (GTK_BOX (priv->sample_area), priv->cur_sample, TRUE, TRUE, 0); gtk_signal_connect (GTK_OBJECT (priv->old_sample), "expose_event", GTK_SIGNAL_FUNC (color_old_sample_expose), colorsel); gtk_signal_connect (GTK_OBJECT (priv->cur_sample), "expose_event", GTK_SIGNAL_FUNC (color_cur_sample_expose), colorsel); color_sample_setup_dnd (colorsel, priv->old_sample); color_sample_setup_dnd (colorsel, priv->cur_sample); gtk_tooltips_set_tip (priv->tooltips, priv->old_sample, _("The previously-selected color, for comparison to the color you're selecting now. You can drag this color to a palette entry, or select this color as current by dragging it to the other color swatch alongside."), NULL); gtk_tooltips_set_tip (priv->tooltips, priv->cur_sample, _("The color you've chosen. You can drag this color to a palette entry to save it for use in the future."), NULL); gtk_widget_show_all (priv->sample_area); } /* * * The palette area code * */ #define CUSTOM_PALETTE_ENTRY_WIDTH 20 #define CUSTOM_PALETTE_ENTRY_HEIGHT 20 static void palette_get_color (GtkWidget *drawing_area, gdouble *color) { gdouble *color_val; g_return_if_fail (color != NULL); color_val = gtk_object_get_data (GTK_OBJECT (drawing_area), "color_val"); if (color_val == NULL) { /* Default to white for no good reason */ color[0] = 1.0; color[1] = 1.0; color[2] = 1.0; color[3] = 1.0; return; } color[0] = color_val[0]; color[1] = color_val[1]; color[2] = color_val[2]; color[3] = 1.0; } #define INTENSITY(r, g, b) ((r) * 0.30 + (g) * 0.59 + (b) * 0.11) static void palette_paint (GtkWidget *drawing_area, GdkRectangle *area, gpointer data) { if (drawing_area->window == NULL) return; gdk_window_clear_area (drawing_area->window, area->x, area->y, area->width, area->height); if (GTK_WIDGET_HAS_FOCUS (drawing_area)) { gint focus_width; GdkGC *gc = get_focus_gc (drawing_area, &focus_width); gdk_draw_rectangle (drawing_area->window, gc, FALSE, focus_width / 2, focus_width / 2, drawing_area->allocation.width - focus_width, drawing_area->allocation.height - focus_width); g_object_unref (gc); } } static GdkGC * get_focus_gc (GtkWidget *drawing_area, gint *focus_width) { GdkGC *gc = gdk_gc_new (drawing_area->window); gdouble color[4]; gint8 *dash_list; gtk_widget_style_get (drawing_area, "focus-line-width", focus_width, "focus-line-pattern", (gchar *)&dash_list, NULL); palette_get_color (drawing_area, color); if (INTENSITY (color[0], color[1], color[2]) > 0.5) gdk_gc_copy (gc, drawing_area->style->black_gc); else gdk_gc_copy (gc, drawing_area->style->white_gc); gdk_gc_set_line_attributes (gc, *focus_width, dash_list[0] ? GDK_LINE_ON_OFF_DASH : GDK_LINE_SOLID, GDK_CAP_BUTT, GDK_JOIN_MITER); if (dash_list[0]) gdk_gc_set_dashes (gc, 0, dash_list, strlen (dash_list)); g_free (dash_list); return gc; } static void palette_drag_begin (GtkWidget *widget, GdkDragContext *context, gpointer data) { GtkColorSelection *colorsel = data; ColorSelectionPrivate *priv; GtkWidget *window; gdouble colors[4]; GdkColor bg; priv = colorsel->private_data; window = gtk_window_new (GTK_WINDOW_POPUP); gtk_window_set_screen (GTK_WINDOW (window), gtk_widget_get_screen (widget)); gtk_widget_set_app_paintable (GTK_WIDGET (window), TRUE); gtk_widget_set_usize (window, 48, 32); gtk_widget_realize (window); gtk_object_set_data_full (GTK_OBJECT (widget), "gtk-color-selection-drag-window", window, (GtkDestroyNotify) gtk_widget_destroy); palette_get_color (widget, colors); bg.red = 0xffff * colors[0]; bg.green = 0xffff * colors[1]; bg.blue = 0xffff * colors[2]; gdk_color_alloc (gtk_widget_get_colormap (window), &bg); gdk_window_set_background (window->window, &bg); gtk_drag_set_icon_widget (context, window, -2, -2); } static void palette_drag_handle (GtkWidget *widget, GdkDragContext *context, GtkSelectionData *selection_data, guint info, guint time, gpointer data) { guint16 vals[4]; gdouble colsrc[4]; palette_get_color (widget, colsrc); vals[0] = colsrc[COLORSEL_RED] * 0xffff; vals[1] = colsrc[COLORSEL_GREEN] * 0xffff; vals[2] = colsrc[COLORSEL_BLUE] * 0xffff; vals[3] = 0xffff; gtk_selection_data_set (selection_data, gdk_atom_intern ("application/x-color", FALSE), 16, (guchar *)vals, 8); } static void palette_drag_end (GtkWidget *widget, GdkDragContext *context, gpointer data) { gtk_object_set_data (GTK_OBJECT (widget), "gtk-color-selection-drag-window", NULL); } static GdkColor * get_current_colors (GtkColorSelection *colorsel) { GtkSettings *settings; GdkColor *colors = NULL; gint n_colors = 0; gchar *palette; settings = gtk_widget_get_settings (GTK_WIDGET (colorsel)); g_object_get (G_OBJECT (settings), "gtk-color-palette", &palette, NULL); if (!gtk_color_selection_palette_from_string (palette, &colors, &n_colors)) { gtk_color_selection_palette_from_string (default_colors, &colors, &n_colors); } else { /* If there are less colors provided than the number of slots in the * color selection, we fill in the rest from the defaults. */ if (n_colors < (GTK_CUSTOM_PALETTE_WIDTH * GTK_CUSTOM_PALETTE_HEIGHT)) { GdkColor *tmp_colors = colors; gint tmp_n_colors = n_colors; gtk_color_selection_palette_from_string (default_colors, &colors, &n_colors); memcpy (colors, tmp_colors, sizeof (GdkColor) * tmp_n_colors); g_free (tmp_colors); } } g_assert (n_colors >= GTK_CUSTOM_PALETTE_WIDTH * GTK_CUSTOM_PALETTE_HEIGHT); g_free (palette); return colors; } /* Changes the model color */ static void palette_change_color (GtkWidget *drawing_area, GtkColorSelection *colorsel, gdouble *color) { gint x, y; ColorSelectionPrivate *priv; GdkColor gdk_color; GdkColor *current_colors; GdkScreen *screen; g_return_if_fail (GTK_IS_COLOR_SELECTION (colorsel)); g_return_if_fail (GTK_IS_DRAWING_AREA (drawing_area)); priv = colorsel->private_data; gdk_color.red = UNSCALE (color[0]); gdk_color.green = UNSCALE (color[1]); gdk_color.blue = UNSCALE (color[2]); x = 0; y = 0; /* Quiet GCC */ while (x < GTK_CUSTOM_PALETTE_WIDTH) { y = 0; while (y < GTK_CUSTOM_PALETTE_HEIGHT) { if (priv->custom_palette[x][y] == drawing_area) goto out; ++y; } ++x; } out: g_assert (x < GTK_CUSTOM_PALETTE_WIDTH || y < GTK_CUSTOM_PALETTE_HEIGHT); current_colors = get_current_colors (colorsel); current_colors[y * GTK_CUSTOM_PALETTE_WIDTH + x] = gdk_color; screen = gtk_widget_get_screen (GTK_WIDGET (colorsel)); if (change_palette_hook != default_change_palette_func) (* change_palette_hook) (screen, current_colors, GTK_CUSTOM_PALETTE_WIDTH * GTK_CUSTOM_PALETTE_HEIGHT); else if (noscreen_change_palette_hook != default_noscreen_change_palette_func) { if (screen != gdk_screen_get_default ()) g_warning ("gtk_color_selection_set_change_palette_hook used by widget is not on the default screen."); (* noscreen_change_palette_hook) (current_colors, GTK_CUSTOM_PALETTE_WIDTH * GTK_CUSTOM_PALETTE_HEIGHT); } else (* change_palette_hook) (screen, current_colors, GTK_CUSTOM_PALETTE_WIDTH * GTK_CUSTOM_PALETTE_HEIGHT); g_free (current_colors); } /* Changes the view color */ static void palette_set_color (GtkWidget *drawing_area, GtkColorSelection *colorsel, gdouble *color) { gdouble *new_color = g_new (double, 4); GdkColor gdk_color; gdk_color.red = UNSCALE (color[0]); gdk_color.green = UNSCALE (color[1]); gdk_color.blue = UNSCALE (color[2]); gtk_widget_modify_bg (drawing_area, GTK_STATE_NORMAL, &gdk_color); if (GPOINTER_TO_INT (gtk_object_get_data (GTK_OBJECT (drawing_area), "color_set")) == 0) { static const GtkTargetEntry targets[] = { { "application/x-color", 0 } }; gtk_drag_source_set (drawing_area, GDK_BUTTON1_MASK | GDK_BUTTON3_MASK, targets, 1, GDK_ACTION_COPY | GDK_ACTION_MOVE); gtk_signal_connect (GTK_OBJECT (drawing_area), "drag_begin", GTK_SIGNAL_FUNC (palette_drag_begin), colorsel); gtk_signal_connect (GTK_OBJECT (drawing_area), "drag_data_get", GTK_SIGNAL_FUNC (palette_drag_handle), colorsel); gtk_object_set_data (GTK_OBJECT (drawing_area), "color_set", GINT_TO_POINTER (1)); } new_color[0] = color[0]; new_color[1] = color[1]; new_color[2] = color[2]; new_color[3] = 1.0; g_object_set_data_full (G_OBJECT (drawing_area), "color_val", new_color, (GDestroyNotify)g_free); } static gboolean palette_expose (GtkWidget *drawing_area, GdkEventExpose *event, gpointer data) { if (drawing_area->window == NULL) return FALSE; palette_paint (drawing_area, &(event->area), data); return FALSE; } static void popup_position_func (GtkMenu *menu, gint *x, gint *y, gboolean *push_in, gpointer user_data) { GtkWidget *widget; GtkRequisition req; gint root_x, root_y; GdkScreen *screen; widget = GTK_WIDGET (user_data); g_return_if_fail (GTK_WIDGET_REALIZED (widget)); gdk_window_get_origin (widget->window, &root_x, &root_y); gtk_widget_size_request (GTK_WIDGET (menu), &req); /* Put corner of menu centered on color cell */ *x = root_x + widget->allocation.width / 2; *y = root_y + widget->allocation.height / 2; /* Ensure sanity */ screen = gtk_widget_get_screen (widget); *x = CLAMP (*x, 0, MAX (0, gdk_screen_get_width (screen) - req.width)); *y = CLAMP (*y, 0, MAX (0, gdk_screen_get_height (screen) - req.height)); } static void save_color_selected (GtkWidget *menuitem, gpointer data) { GtkColorSelection *colorsel; GtkWidget *drawing_area; ColorSelectionPrivate *priv; drawing_area = GTK_WIDGET (data); colorsel = GTK_COLOR_SELECTION (g_object_get_data (G_OBJECT (drawing_area), "gtk-color-sel")); priv = colorsel->private_data; palette_change_color (drawing_area, colorsel, priv->color); } static void do_popup (GtkColorSelection *colorsel, GtkWidget *drawing_area, guint32 timestamp) { GtkWidget *menu; GtkWidget *mi; g_object_set_data (G_OBJECT (drawing_area), "gtk-color-sel", colorsel); menu = gtk_menu_new (); mi = gtk_menu_item_new_with_mnemonic (_("_Save color here")); gtk_signal_connect (GTK_OBJECT (mi), "activate", GTK_SIGNAL_FUNC (save_color_selected), drawing_area); gtk_menu_shell_append (GTK_MENU_SHELL (menu), mi); gtk_widget_show_all (mi); gtk_menu_popup (GTK_MENU (menu), NULL, NULL, popup_position_func, drawing_area, 3, timestamp); } static gint palette_press (GtkWidget *drawing_area, GdkEventButton *event, gpointer data) { GtkColorSelection *colorsel = GTK_COLOR_SELECTION (data); gtk_widget_grab_focus (drawing_area); if (event->button == 1 && event->type == GDK_BUTTON_PRESS) { if (GPOINTER_TO_INT (gtk_object_get_data (GTK_OBJECT (drawing_area), "color_set")) != 0) { gdouble color[4]; palette_get_color (drawing_area, color); gtk_color_selection_set_color (GTK_COLOR_SELECTION (data), color); } } if (event->button == 3 && event->type == GDK_BUTTON_PRESS) { do_popup (colorsel, drawing_area, event->time); } return TRUE; } static void palette_unset_color (GtkWidget *drawing_area) { if (GPOINTER_TO_INT (gtk_object_get_data (GTK_OBJECT (drawing_area), "color_set")) == 0) return; gtk_widget_reset_rc_styles (drawing_area); gtk_object_set_data (GTK_OBJECT (drawing_area), "color_set", GINT_TO_POINTER (0)); } static void palette_drop_handle (GtkWidget *widget, GdkDragContext *context, gint x, gint y, GtkSelectionData *selection_data, guint info, guint time, gpointer data) { guint16 *vals; gdouble color[4]; if (selection_data->length < 0) return; if ((selection_data->format != 16) || (selection_data->length != 8)) { g_warning ("Received invalid color data\n"); return; } vals = (guint16 *)selection_data->data; color[0] = (gdouble)vals[0] / 0xffff; color[1] = (gdouble)vals[1] / 0xffff; color[2] = (gdouble)vals[2] / 0xffff; color[3] = (gdouble)vals[3] / 0xffff; palette_change_color (widget, GTK_COLOR_SELECTION (data), color); gtk_color_selection_set_color (GTK_COLOR_SELECTION (data), color); } static gint palette_activate (GtkWidget *widget, GdkEventKey *event, gpointer data) { /* should have a drawing area subclass with an activate signal */ if ((event->keyval == GDK_space) || (event->keyval == GDK_Return) || (event->keyval == GDK_KP_Enter) || (event->keyval == GDK_KP_Space)) { if (GPOINTER_TO_INT (gtk_object_get_data (GTK_OBJECT (widget), "color_set")) != 0) { gdouble color[4]; palette_get_color (widget, color); gtk_color_selection_set_color (GTK_COLOR_SELECTION (data), color); } return TRUE; } return FALSE; } static gboolean palette_popup (GtkWidget *widget, gpointer data) { GtkColorSelection *colorsel = GTK_COLOR_SELECTION (data); do_popup (colorsel, widget, GDK_CURRENT_TIME); return TRUE; } static GtkWidget* palette_new (GtkColorSelection *colorsel) { GtkWidget *retval; ColorSelectionPrivate *priv; static const GtkTargetEntry targets[] = { { "application/x-color", 0 } }; priv = colorsel->private_data; retval = gtk_drawing_area_new (); GTK_WIDGET_SET_FLAGS (retval, GTK_CAN_FOCUS); gtk_object_set_data (GTK_OBJECT (retval), "color_set", GINT_TO_POINTER (0)); gtk_widget_set_events (retval, GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK | GDK_EXPOSURE_MASK | GDK_ENTER_NOTIFY_MASK | GDK_LEAVE_NOTIFY_MASK); gtk_signal_connect (GTK_OBJECT (retval), "expose_event", GTK_SIGNAL_FUNC (palette_expose), colorsel); gtk_signal_connect (GTK_OBJECT (retval), "button_press_event", GTK_SIGNAL_FUNC (palette_press), colorsel); gtk_signal_connect (GTK_OBJECT (retval), "key_press_event", GTK_SIGNAL_FUNC (palette_activate), colorsel); gtk_signal_connect (GTK_OBJECT (retval), "popup_menu", GTK_SIGNAL_FUNC (palette_popup), colorsel); gtk_drag_dest_set (retval, GTK_DEST_DEFAULT_HIGHLIGHT | GTK_DEST_DEFAULT_MOTION | GTK_DEST_DEFAULT_DROP, targets, 1, GDK_ACTION_COPY); gtk_signal_connect (GTK_OBJECT (retval), "drag_end", GTK_SIGNAL_FUNC (palette_drag_end), NULL); gtk_signal_connect (GTK_OBJECT (retval), "drag_data_received", GTK_SIGNAL_FUNC (palette_drop_handle), colorsel); gtk_tooltips_set_tip (priv->tooltips, retval, _("Click this palette entry to make it the current color. To change this entry, drag a color swatch here or right-click it and select \"Save color here.\""), NULL); return retval; } /* * * The actual GtkColorSelection widget * */ static GdkCursor * make_picker_cursor (GdkScreen *screen) { GdkCursor *cursor; GdkColor fg, bg; GdkPixmap *pixmap = gdk_bitmap_create_from_data (gdk_screen_get_root_window (screen), dropper_bits, DROPPER_WIDTH, DROPPER_HEIGHT); GdkPixmap *mask = gdk_bitmap_create_from_data (gdk_screen_get_root_window (screen), dropper_mask, DROPPER_WIDTH, DROPPER_HEIGHT); gdk_color_white (gdk_screen_get_system_colormap (screen), &bg); gdk_color_black (gdk_screen_get_system_colormap (screen), &fg); cursor = gdk_cursor_new_from_pixmap (pixmap, mask, &fg, &bg, DROPPER_X_HOT ,DROPPER_Y_HOT); gdk_pixmap_unref (pixmap); gdk_pixmap_unref (mask); return cursor; } static void grab_color_at_mouse (GtkWidget *invisible, gint x_root, gint y_root, gpointer data) { GdkImage *image; guint32 pixel; GtkColorSelection *colorsel = data; ColorSelectionPrivate *priv; GdkColor color; GdkColormap *colormap = gdk_screen_get_system_colormap (gtk_widget_get_screen (invisible)); GdkWindow *root_window = gdk_screen_get_root_window (gtk_widget_get_screen (invisible)); priv = colorsel->private_data; image = gdk_image_get (root_window, x_root, y_root, 1, 1); pixel = gdk_image_get_pixel (image, 0, 0); gdk_image_unref (image); gdk_colormap_query_color (colormap, pixel, &color); priv->color[COLORSEL_RED] = SCALE (color.red); priv->color[COLORSEL_GREEN] = SCALE (color.green); priv->color[COLORSEL_BLUE] = SCALE (color.blue); gtk_rgb_to_hsv (priv->color[COLORSEL_RED], priv->color[COLORSEL_GREEN], priv->color[COLORSEL_BLUE], &priv->color[COLORSEL_HUE], &priv->color[COLORSEL_SATURATION], &priv->color[COLORSEL_VALUE]); update_color (colorsel); } static void shutdown_eyedropper (GtkWidget *widget) { GtkColorSelection *colorsel; ColorSelectionPrivate *priv; GdkDisplay *display = gtk_widget_get_display (widget); guint32 time = gtk_get_current_event_time (); colorsel = GTK_COLOR_SELECTION (widget); priv = colorsel->private_data; gdk_display_keyboard_ungrab (display, time); gdk_display_pointer_ungrab (display, time); gtk_grab_remove (priv->dropper_grab_widget); } static void mouse_motion (GtkWidget *invisible, GdkEventMotion *event, gpointer data) { grab_color_at_mouse (invisible, event->x_root, event->y_root, data); } static gboolean mouse_release (GtkWidget *invisible, GdkEventButton *event, gpointer data) { GtkColorSelection *colorsel = data; ColorSelectionPrivate *priv; priv = colorsel->private_data; if (event->button != 1) return FALSE; grab_color_at_mouse (invisible, event->x_root, event->y_root, data); shutdown_eyedropper (GTK_WIDGET (data)); gtk_signal_disconnect_by_func (GTK_OBJECT (invisible), GTK_SIGNAL_FUNC (mouse_motion), data); gtk_signal_disconnect_by_func (GTK_OBJECT (invisible), GTK_SIGNAL_FUNC (mouse_release), data); return TRUE; } /* Helper Functions */ static gboolean mouse_press (GtkWidget *invisible, GdkEventButton *event, gpointer data); static gboolean key_press (GtkWidget *invisible, GdkEventKey *event, gpointer data) { if (event->keyval == GDK_Escape) { shutdown_eyedropper (data); gtk_signal_disconnect_by_func (GTK_OBJECT (invisible), GTK_SIGNAL_FUNC (mouse_press), data); gtk_signal_disconnect_by_func (GTK_OBJECT (invisible), GTK_SIGNAL_FUNC (key_press), data); return TRUE; } return FALSE; } static gboolean mouse_press (GtkWidget *invisible, GdkEventButton *event, gpointer data) { GtkColorSelection *colorsel = data; ColorSelectionPrivate *priv; priv = colorsel->private_data; if (event->type == GDK_BUTTON_PRESS && event->button == 1) { gtk_signal_connect (GTK_OBJECT (invisible), "motion_notify_event", GTK_SIGNAL_FUNC (mouse_motion), data); gtk_signal_connect (GTK_OBJECT (invisible), "button_release_event", GTK_SIGNAL_FUNC (mouse_release), data); gtk_signal_disconnect_by_func (GTK_OBJECT (invisible), GTK_SIGNAL_FUNC (mouse_press), data); gtk_signal_disconnect_by_func (GTK_OBJECT (invisible), GTK_SIGNAL_FUNC (key_press), data); return TRUE; } return FALSE; } /* when the button is clicked */ static void get_screen_color (GtkWidget *button) { GtkColorSelection *colorsel = gtk_object_get_data (GTK_OBJECT (button), "COLORSEL"); ColorSelectionPrivate *priv = colorsel->private_data; GdkScreen *screen = gtk_widget_get_screen (GTK_WIDGET (button)); GdkCursor *picker_cursor; GdkGrabStatus grab_status; if (priv->dropper_grab_widget == NULL) { priv->dropper_grab_widget = gtk_invisible_new_for_screen (screen); gtk_widget_add_events (priv->dropper_grab_widget, GDK_BUTTON_RELEASE_MASK | GDK_BUTTON_PRESS_MASK | GDK_POINTER_MOTION_MASK); gtk_widget_show (priv->dropper_grab_widget); } if (gdk_keyboard_grab (priv->dropper_grab_widget->window, FALSE, gtk_get_current_event_time ()) != GDK_GRAB_SUCCESS) { g_warning ("Failed to grab keyboard to do eyedropper"); return; } picker_cursor = make_picker_cursor (screen); grab_status = gdk_pointer_grab (priv->dropper_grab_widget->window, FALSE, GDK_BUTTON_RELEASE_MASK | GDK_BUTTON_PRESS_MASK | GDK_POINTER_MOTION_MASK, NULL, picker_cursor, gtk_get_current_event_time ()); gdk_cursor_unref (picker_cursor); if (grab_status != GDK_GRAB_SUCCESS) { gdk_display_keyboard_ungrab (gtk_widget_get_display (button), GDK_CURRENT_TIME); g_warning ("Failed to grab pointer to do eyedropper"); return; } gtk_grab_add (priv->dropper_grab_widget); gtk_signal_connect (GTK_OBJECT (priv->dropper_grab_widget), "button_press_event", GTK_SIGNAL_FUNC (mouse_press), colorsel); gtk_signal_connect (GTK_OBJECT (priv->dropper_grab_widget), "key_press_event", GTK_SIGNAL_FUNC (key_press), colorsel); } static void hex_changed (GtkWidget *hex_entry, gpointer data) { GtkColorSelection *colorsel; ColorSelectionPrivate *priv; GdkColor color; gchar *text; colorsel = GTK_COLOR_SELECTION (data); priv = colorsel->private_data; if (priv->changing) return; text = gtk_editable_get_chars (GTK_EDITABLE (priv->hex_entry), 0, -1); if (gdk_color_parse (text, &color)) { priv->color[COLORSEL_RED] = CLAMP (color.red/65280.0, 0.0, 1.0); priv->color[COLORSEL_GREEN] = CLAMP (color.green/65280.0, 0.0, 1.0); priv->color[COLORSEL_BLUE] = CLAMP (color.blue/65280.0, 0.0, 1.0); gtk_rgb_to_hsv (priv->color[COLORSEL_RED], priv->color[COLORSEL_GREEN], priv->color[COLORSEL_BLUE], &priv->color[COLORSEL_HUE], &priv->color[COLORSEL_SATURATION], &priv->color[COLORSEL_VALUE]); update_color (colorsel); } g_free (text); } static void hsv_changed (GtkWidget *hsv, gpointer data) { GtkColorSelection *colorsel; ColorSelectionPrivate *priv; colorsel = GTK_COLOR_SELECTION (data); priv = colorsel->private_data; if (priv->changing) return; gtk_hsv_get_color (GTK_HSV (hsv), &priv->color[COLORSEL_HUE], &priv->color[COLORSEL_SATURATION], &priv->color[COLORSEL_VALUE]); gtk_hsv_to_rgb (priv->color[COLORSEL_HUE], priv->color[COLORSEL_SATURATION], priv->color[COLORSEL_VALUE], &priv->color[COLORSEL_RED], &priv->color[COLORSEL_GREEN], &priv->color[COLORSEL_BLUE]); update_color (colorsel); } static void adjustment_changed (GtkAdjustment *adjustment, gpointer data) { GtkColorSelection *colorsel; ColorSelectionPrivate *priv; colorsel = GTK_COLOR_SELECTION (gtk_object_get_data (GTK_OBJECT (adjustment), "COLORSEL")); priv = colorsel->private_data; if (priv->changing) return; switch (GPOINTER_TO_INT (data)) { case COLORSEL_SATURATION: case COLORSEL_VALUE: priv->color[GPOINTER_TO_INT (data)] = adjustment->value / 255; gtk_hsv_to_rgb (priv->color[COLORSEL_HUE], priv->color[COLORSEL_SATURATION], priv->color[COLORSEL_VALUE], &priv->color[COLORSEL_RED], &priv->color[COLORSEL_GREEN], &priv->color[COLORSEL_BLUE]); break; case COLORSEL_HUE: priv->color[GPOINTER_TO_INT (data)] = adjustment->value / 360; gtk_hsv_to_rgb (priv->color[COLORSEL_HUE], priv->color[COLORSEL_SATURATION], priv->color[COLORSEL_VALUE], &priv->color[COLORSEL_RED], &priv->color[COLORSEL_GREEN], &priv->color[COLORSEL_BLUE]); break; case COLORSEL_RED: case COLORSEL_GREEN: case COLORSEL_BLUE: priv->color[GPOINTER_TO_INT (data)] = adjustment->value / 255; gtk_rgb_to_hsv (priv->color[COLORSEL_RED], priv->color[COLORSEL_GREEN], priv->color[COLORSEL_BLUE], &priv->color[COLORSEL_HUE], &priv->color[COLORSEL_SATURATION], &priv->color[COLORSEL_VALUE]); break; default: priv->color[GPOINTER_TO_INT (data)] = adjustment->value / 255; break; } update_color (colorsel); } static void opacity_entry_changed (GtkWidget *opacity_entry, gpointer data) { GtkColorSelection *colorsel; ColorSelectionPrivate *priv; GtkAdjustment *adj; gchar *text; colorsel = GTK_COLOR_SELECTION (data); priv = colorsel->private_data; if (priv->changing) return; text = gtk_editable_get_chars (GTK_EDITABLE (priv->opacity_entry), 0, -1); adj = gtk_range_get_adjustment (GTK_RANGE (priv->opacity_slider)); gtk_adjustment_set_value (adj, g_strtod (text, NULL)); update_color (colorsel); g_free (text); } static void make_label_spinbutton (GtkColorSelection *colorsel, GtkWidget **spinbutton, gchar *text, GtkWidget *table, gint i, gint j, gint channel_type, const gchar *tooltip) { GtkWidget *label; GtkAdjustment *adjust; ColorSelectionPrivate *priv = colorsel->private_data; if (channel_type == COLORSEL_HUE) { adjust = GTK_ADJUSTMENT (gtk_adjustment_new (0.0, 0.0, 360.0, 1.0, 1.0, 1.0)); } else { adjust = GTK_ADJUSTMENT (gtk_adjustment_new (0.0, 0.0, 255.0, 1.0, 1.0, 1.0)); } gtk_object_set_data (GTK_OBJECT (adjust), "COLORSEL", colorsel); *spinbutton = gtk_spin_button_new (adjust, 10.0, 0); gtk_tooltips_set_tip (priv->tooltips, *spinbutton, tooltip, NULL); gtk_signal_connect (GTK_OBJECT (adjust), "value_changed", GTK_SIGNAL_FUNC (adjustment_changed), GINT_TO_POINTER (channel_type)); label = gtk_label_new_with_mnemonic (text); gtk_label_set_mnemonic_widget (GTK_LABEL (label), *spinbutton); gtk_misc_set_alignment (GTK_MISC (label), 1.0, 0.5); gtk_table_attach_defaults (GTK_TABLE (table), label, i, i+1, j, j+1); gtk_table_attach_defaults (GTK_TABLE (table), *spinbutton, i+1, i+2, j, j+1); } static void make_palette_frame (GtkColorSelection *colorsel, GtkWidget *table, gint i, gint j) { GtkWidget *frame; ColorSelectionPrivate *priv; priv = colorsel->private_data; frame = gtk_frame_new (NULL); gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_IN); priv->custom_palette[i][j] = palette_new (colorsel); gtk_widget_set_usize (priv->custom_palette[i][j], CUSTOM_PALETTE_ENTRY_WIDTH, CUSTOM_PALETTE_ENTRY_HEIGHT); gtk_container_add (GTK_CONTAINER (frame), priv->custom_palette[i][j]); gtk_table_attach_defaults (GTK_TABLE (table), frame, i, i+1, j, j+1); } /* Set the palette entry [x][y] to be the currently selected one. */ static void set_selected_palette (GtkColorSelection *colorsel, int x, int y) { ColorSelectionPrivate *priv = colorsel->private_data; gtk_widget_grab_focus (priv->custom_palette[x][y]); } static double scale_round (double val, double factor) { val = floor (val * factor + 0.5); val = MAX (val, 0); val = MIN (val, factor); return val; } static void update_color (GtkColorSelection *colorsel) { ColorSelectionPrivate *priv = colorsel->private_data; gchar entryval[12]; gchar opacity_text[32]; gchar *ptr; priv->changing = TRUE; color_sample_draw_samples (colorsel); gtk_hsv_set_color (GTK_HSV (priv->triangle_colorsel), priv->color[COLORSEL_HUE], priv->color[COLORSEL_SATURATION], priv->color[COLORSEL_VALUE]); gtk_adjustment_set_value (gtk_spin_button_get_adjustment (GTK_SPIN_BUTTON (priv->hue_spinbutton)), scale_round (priv->color[COLORSEL_HUE], 360)); gtk_adjustment_set_value (gtk_spin_button_get_adjustment (GTK_SPIN_BUTTON (priv->sat_spinbutton)), scale_round (priv->color[COLORSEL_SATURATION], 255)); gtk_adjustment_set_value (gtk_spin_button_get_adjustment (GTK_SPIN_BUTTON (priv->val_spinbutton)), scale_round (priv->color[COLORSEL_VALUE], 255)); gtk_adjustment_set_value (gtk_spin_button_get_adjustment (GTK_SPIN_BUTTON (priv->red_spinbutton)), scale_round (priv->color[COLORSEL_RED], 255)); gtk_adjustment_set_value (gtk_spin_button_get_adjustment (GTK_SPIN_BUTTON (priv->green_spinbutton)), scale_round (priv->color[COLORSEL_GREEN], 255)); gtk_adjustment_set_value (gtk_spin_button_get_adjustment (GTK_SPIN_BUTTON (priv->blue_spinbutton)), scale_round (priv->color[COLORSEL_BLUE], 255)); gtk_adjustment_set_value (gtk_range_get_adjustment (GTK_RANGE (priv->opacity_slider)), scale_round (priv->color[COLORSEL_OPACITY], 255)); g_snprintf (opacity_text, 32, "%.0f", scale_round (priv->color[COLORSEL_OPACITY], 255)); gtk_entry_set_text (GTK_ENTRY (priv->opacity_entry), opacity_text); g_snprintf (entryval, 11, "#%2X%2X%2X", (guint) (scale_round (priv->color[COLORSEL_RED], 255)), (guint) (scale_round (priv->color[COLORSEL_GREEN], 255)), (guint) (scale_round (priv->color[COLORSEL_BLUE], 255))); for (ptr = entryval; *ptr; ptr++) if (*ptr == ' ') *ptr = '0'; gtk_entry_set_text (GTK_ENTRY (priv->hex_entry), entryval); priv->changing = FALSE; g_object_ref (colorsel); g_signal_emit (colorsel, color_selection_signals[COLOR_CHANGED], 0); g_object_freeze_notify (G_OBJECT (colorsel)); g_object_notify (G_OBJECT (colorsel), "current_color"); g_object_notify (G_OBJECT (colorsel), "current_alpha"); g_object_thaw_notify (G_OBJECT (colorsel)); g_object_unref (colorsel); } static void update_palette (GtkColorSelection *colorsel) { GdkColor *current_colors; gint i, j; current_colors = get_current_colors (colorsel); for (i = 0; i < GTK_CUSTOM_PALETTE_HEIGHT; i++) { for (j = 0; j < GTK_CUSTOM_PALETTE_WIDTH; j++) { gint index; index = i * GTK_CUSTOM_PALETTE_WIDTH + j; gtk_color_selection_set_palette_color (colorsel, index, ¤t_colors[index]); } } g_free (current_colors); } static void palette_change_notify_instance (GObject *object, GParamSpec *pspec, gpointer data) { update_palette (GTK_COLOR_SELECTION (data)); } static void default_noscreen_change_palette_func (const GdkColor *colors, gint n_colors) { default_change_palette_func (gdk_screen_get_default (), colors, n_colors); } static void default_change_palette_func (GdkScreen *screen, const GdkColor *colors, gint n_colors) { gchar *str; str = gtk_color_selection_palette_to_string (colors, n_colors); gtk_settings_set_string_property (gtk_settings_get_for_screen (screen), "gtk-color-palette", str, "gtk_color_selection_palette_to_string"); g_free (str); } GtkType gtk_color_selection_get_type (void) { static GtkType color_selection_type = 0; if (!color_selection_type) { static const GtkTypeInfo color_selection_info = { "GtkColorSelection", sizeof (GtkColorSelection), sizeof (GtkColorSelectionClass), (GtkClassInitFunc) gtk_color_selection_class_init, (GtkObjectInitFunc) gtk_color_selection_init, /* reserved_1 */ NULL, /* reserved_2 */ NULL, (GtkClassInitFunc) NULL, }; color_selection_type = gtk_type_unique (GTK_TYPE_VBOX, &color_selection_info); } return color_selection_type; } static void gtk_color_selection_class_init (GtkColorSelectionClass *klass) { GtkObjectClass *object_class; GObjectClass *gobject_class; GtkWidgetClass *widget_class; object_class = GTK_OBJECT_CLASS (klass); gobject_class = G_OBJECT_CLASS (klass); widget_class = GTK_WIDGET_CLASS (klass); parent_class = gtk_type_class (GTK_TYPE_VBOX); object_class->destroy = gtk_color_selection_destroy; gobject_class->set_property = gtk_color_selection_set_property; gobject_class->get_property = gtk_color_selection_get_property; widget_class->realize = gtk_color_selection_realize; widget_class->unrealize = gtk_color_selection_unrealize; g_object_class_install_property (gobject_class, PROP_HAS_OPACITY_CONTROL, g_param_spec_boolean ("has_opacity_control", _("Has Opacity Control"), _("Whether the color selector should allow setting opacity"), FALSE, G_PARAM_READABLE | G_PARAM_WRITABLE)); g_object_class_install_property (gobject_class, PROP_HAS_PALETTE, g_param_spec_boolean ("has_palette", _("Has palette"), _("Whether a palette should be used"), FALSE, G_PARAM_READABLE | G_PARAM_WRITABLE)); g_object_class_install_property (gobject_class, PROP_CURRENT_COLOR, g_param_spec_boxed ("current_color", _("Current Color"), _("The current color"), GDK_TYPE_COLOR, G_PARAM_READABLE | G_PARAM_WRITABLE)); g_object_class_install_property (gobject_class, PROP_CURRENT_ALPHA, g_param_spec_uint ("current_alpha", _("Current Alpha"), _("The current opacity value (0 fully transparent, 65535 fully opaque)"), 0, 65535, 65535, G_PARAM_READABLE | G_PARAM_WRITABLE)); color_selection_signals[COLOR_CHANGED] = gtk_signal_new ("color_changed", GTK_RUN_FIRST, GTK_CLASS_TYPE (object_class), GTK_SIGNAL_OFFSET (GtkColorSelectionClass, color_changed), _gtk_marshal_VOID__VOID, GTK_TYPE_NONE, 0); gtk_settings_install_property (g_param_spec_string ("gtk-color-palette", _("Custom palette"), _("Palette to use in the color selector"), default_colors, G_PARAM_READWRITE)); } /* widget functions */ static void gtk_color_selection_init (GtkColorSelection *colorsel) { GtkWidget *top_hbox; GtkWidget *top_right_vbox; GtkWidget *table, *label, *hbox, *frame, *vbox, *button; GtkAdjustment *adjust; GdkPixbuf *picker_pix = NULL; GtkWidget *picker_image; gint i, j; ColorSelectionPrivate *priv; gtk_widget_push_composite_child (); priv = colorsel->private_data = g_new0 (ColorSelectionPrivate, 1); priv->changing = FALSE; priv->default_set = FALSE; priv->default_alpha_set = FALSE; priv->tooltips = gtk_tooltips_new (); g_object_ref (priv->tooltips); gtk_object_sink (GTK_OBJECT (priv->tooltips)); gtk_box_set_spacing (GTK_BOX (colorsel), 4); top_hbox = gtk_hbox_new (FALSE, 8); gtk_box_pack_start (GTK_BOX (colorsel), top_hbox, FALSE, FALSE, 0); vbox = gtk_vbox_new (FALSE, 4); priv->triangle_colorsel = gtk_hsv_new (); gtk_signal_connect (GTK_OBJECT (priv->triangle_colorsel), "changed", GTK_SIGNAL_FUNC (hsv_changed), colorsel); gtk_hsv_set_metrics (GTK_HSV (priv->triangle_colorsel), 174, 15); gtk_box_pack_start (GTK_BOX (top_hbox), vbox, FALSE, FALSE, 0); gtk_box_pack_start (GTK_BOX (vbox), priv->triangle_colorsel, FALSE, FALSE, 0); gtk_tooltips_set_tip (priv->tooltips, priv->triangle_colorsel, _("Select the color you want from the outer ring. Select the darkness or lightness of that color using the inner triangle."), NULL); hbox = gtk_hbox_new (FALSE, 4); gtk_box_pack_end (GTK_BOX (vbox), hbox, FALSE, FALSE, 0); frame = gtk_frame_new (NULL); gtk_widget_set_usize (frame, -1, 30); gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_IN); color_sample_new (colorsel); gtk_container_add (GTK_CONTAINER (frame), priv->sample_area); gtk_box_pack_start (GTK_BOX (hbox), frame, TRUE, TRUE, 0); button = gtk_button_new (); gtk_widget_set_events (button, GDK_POINTER_MOTION_MASK | GDK_POINTER_MOTION_HINT_MASK); gtk_object_set_data (GTK_OBJECT (button), "COLORSEL", colorsel); gtk_signal_connect (GTK_OBJECT (button), "clicked", GTK_SIGNAL_FUNC (get_screen_color), NULL); picker_pix = gdk_pixbuf_new_from_xpm_data ((const char **) &picker); picker_image = gtk_image_new_from_pixbuf (picker_pix); gtk_container_add (GTK_CONTAINER (button), picker_image); gtk_widget_show (GTK_WIDGET (picker_image)); gtk_box_pack_end (GTK_BOX (hbox), button, FALSE, FALSE, 0); gtk_tooltips_set_tip (priv->tooltips, button, _("Click the eyedropper, then click a color anywhere on your screen to select that color."), NULL); top_right_vbox = gtk_vbox_new (FALSE, 4); gtk_box_pack_start (GTK_BOX (top_hbox), top_right_vbox, FALSE, FALSE, 0); table = gtk_table_new (8, 6, FALSE); gtk_box_pack_start (GTK_BOX (top_right_vbox), table, FALSE, FALSE, 0); gtk_table_set_row_spacings (GTK_TABLE (table), 4); gtk_table_set_col_spacings (GTK_TABLE (table), 4); make_label_spinbutton (colorsel, &priv->hue_spinbutton, _("_Hue:"), table, 0, 0, COLORSEL_HUE, _("Position on the color wheel.")); make_label_spinbutton (colorsel, &priv->sat_spinbutton, _("_Saturation:"), table, 0, 1, COLORSEL_SATURATION, _("\"Deepness\" of the color.")); make_label_spinbutton (colorsel, &priv->val_spinbutton, _("_Value:"), table, 0, 2, COLORSEL_VALUE, _("Brightness of the color.")); make_label_spinbutton (colorsel, &priv->red_spinbutton, _("_Red:"), table, 6, 0, COLORSEL_RED, _("Amount of red light in the color.")); make_label_spinbutton (colorsel, &priv->green_spinbutton, _("_Green:"), table, 6, 1, COLORSEL_GREEN, _("Amount of green light in the color.")); make_label_spinbutton (colorsel, &priv->blue_spinbutton, _("_Blue:"), table, 6, 2, COLORSEL_BLUE, _("Amount of blue light in the color.")); gtk_table_attach_defaults (GTK_TABLE (table), gtk_hseparator_new (), 0, 8, 3, 4); priv->opacity_label = gtk_label_new_with_mnemonic (_("_Opacity:")); gtk_misc_set_alignment (GTK_MISC (priv->opacity_label), 1.0, 0.5); gtk_table_attach_defaults (GTK_TABLE (table), priv->opacity_label, 0, 1, 4, 5); adjust = GTK_ADJUSTMENT (gtk_adjustment_new (0.0, 0.0, 255.0, 1.0, 1.0, 0.0)); gtk_object_set_data (GTK_OBJECT (adjust), "COLORSEL", colorsel); priv->opacity_slider = gtk_hscale_new (adjust); gtk_tooltips_set_tip (priv->tooltips, priv->opacity_slider, _("Transparency of the currently-selected color."), NULL); gtk_label_set_mnemonic_widget (GTK_LABEL (priv->opacity_label), priv->opacity_slider); gtk_scale_set_draw_value (GTK_SCALE (priv->opacity_slider), FALSE); gtk_signal_connect (GTK_OBJECT (adjust), "value_changed", GTK_SIGNAL_FUNC (adjustment_changed), GINT_TO_POINTER (COLORSEL_OPACITY)); gtk_table_attach_defaults (GTK_TABLE (table), priv->opacity_slider, 1, 7, 4, 5); priv->opacity_entry = gtk_entry_new (); gtk_widget_set_usize (priv->opacity_entry, 40, 0); gtk_signal_connect (GTK_OBJECT (priv->opacity_entry), "activate", GTK_SIGNAL_FUNC (opacity_entry_changed), colorsel); gtk_table_attach_defaults (GTK_TABLE (table), priv->opacity_entry, 7, 8, 4, 5); label = gtk_label_new_with_mnemonic (_("Color _Name:")); gtk_table_attach_defaults (GTK_TABLE (table), label, 0, 1, 5, 6); gtk_misc_set_alignment (GTK_MISC (label), 1.0, 0.5); priv->hex_entry = gtk_entry_new (); gtk_label_set_mnemonic_widget (GTK_LABEL (label), priv->hex_entry); gtk_signal_connect (GTK_OBJECT (priv->hex_entry), "activate", GTK_SIGNAL_FUNC (hex_changed), colorsel); gtk_tooltips_set_tip (priv->tooltips, priv->hex_entry, _("You can enter an HTML-style hexadecimal color value, or simply a color name such as 'orange' in this entry."), NULL); gtk_widget_set_usize (priv->hex_entry, 75, -1); gtk_table_set_col_spacing (GTK_TABLE (table), 3, 15); gtk_table_attach_defaults (GTK_TABLE (table), priv->hex_entry, 1, 5, 5, 6); /* Set up the palette */ table = gtk_table_new (GTK_CUSTOM_PALETTE_HEIGHT, GTK_CUSTOM_PALETTE_WIDTH, TRUE); gtk_table_set_row_spacings (GTK_TABLE (table), 1); gtk_table_set_col_spacings (GTK_TABLE (table), 1); for (i = 0; i < GTK_CUSTOM_PALETTE_WIDTH; i++) { for (j = 0; j < GTK_CUSTOM_PALETTE_HEIGHT; j++) { make_palette_frame (colorsel, table, i, j); } } set_selected_palette (colorsel, 0, 0); priv->palette_frame = gtk_frame_new (NULL); label = gtk_label_new_with_mnemonic (_("_Palette")); gtk_frame_set_label_widget (GTK_FRAME (priv->palette_frame), label); gtk_label_set_mnemonic_widget (GTK_LABEL (label), priv->custom_palette[0][0]); gtk_box_pack_end (GTK_BOX (top_right_vbox), priv->palette_frame, FALSE, FALSE, 0); vbox = gtk_vbox_new (FALSE, 4); gtk_container_add (GTK_CONTAINER (priv->palette_frame), vbox); gtk_box_pack_start (GTK_BOX (vbox), table, FALSE, FALSE, 0); gtk_container_set_border_width (GTK_CONTAINER (vbox), 4); gtk_widget_show_all (top_hbox); /* hide unused stuff */ if (priv->has_opacity == FALSE) { gtk_widget_hide (priv->opacity_label); gtk_widget_hide (priv->opacity_slider); gtk_widget_hide (priv->opacity_entry); } if (priv->has_palette == FALSE) { gtk_widget_hide (priv->palette_frame); } gtk_widget_pop_composite_child (); } static void gtk_color_selection_destroy (GtkObject *object) { GtkColorSelection *cselection = GTK_COLOR_SELECTION (object); ColorSelectionPrivate *priv = cselection->private_data; if (priv->dropper_grab_widget) { gtk_widget_destroy (priv->dropper_grab_widget); priv->dropper_grab_widget = NULL; } if (priv->tooltips) { g_object_unref (priv->tooltips); priv->tooltips = NULL; } GTK_OBJECT_CLASS (parent_class)->destroy (object); } static void gtk_color_selection_realize (GtkWidget *widget) { GtkColorSelection *colorsel = GTK_COLOR_SELECTION (widget); ColorSelectionPrivate *priv = colorsel->private_data; GtkSettings *settings = gtk_widget_get_settings (widget); priv->settings_connection = g_signal_connect (settings, "notify::gtk-color-palette", G_CALLBACK (palette_change_notify_instance), widget); update_palette (colorsel); GTK_WIDGET_CLASS (parent_class)->realize (widget); } static void gtk_color_selection_unrealize (GtkWidget *widget) { GtkColorSelection *colorsel = GTK_COLOR_SELECTION (widget); ColorSelectionPrivate *priv = colorsel->private_data; GtkSettings *settings = gtk_widget_get_settings (widget); g_signal_handler_disconnect (settings, priv->settings_connection); GTK_WIDGET_CLASS (parent_class)->unrealize (widget); } /** * gtk_color_selection_new: * * Creates a new GtkColorSelection. * * Return value: a new #GtkColorSelection **/ GtkWidget * gtk_color_selection_new (void) { GtkColorSelection *colorsel; ColorSelectionPrivate *priv; gdouble color[4]; color[0] = 1.0; color[1] = 1.0; color[2] = 1.0; color[3] = 1.0; colorsel = gtk_type_new (GTK_TYPE_COLOR_SELECTION); priv = colorsel->private_data; gtk_color_selection_set_color (colorsel, color); gtk_color_selection_set_has_opacity_control (colorsel, TRUE); /* We want to make sure that default_set is FALSE */ /* This way the user can still set it */ priv->default_set = FALSE; priv->default_alpha_set = FALSE; return GTK_WIDGET (colorsel); } void gtk_color_selection_set_update_policy (GtkColorSelection *colorsel, GtkUpdateType policy) { g_return_if_fail (GTK_IS_COLOR_SELECTION (colorsel)); } /** * gtk_color_selection_get_has_opacity_control: * @colorsel: a #GtkColorSelection. * * Determines whether the colorsel has an opacity control. * * Return value: %TRUE if the @colorsel has an opacity control. %FALSE if it does't. **/ gboolean gtk_color_selection_get_has_opacity_control (GtkColorSelection *colorsel) { ColorSelectionPrivate *priv; g_return_val_if_fail (GTK_IS_COLOR_SELECTION (colorsel), FALSE); priv = colorsel->private_data; return priv->has_opacity; } /** * gtk_color_selection_set_has_opacity_control: * @colorsel: a #GtkColorSelection. * @has_opacity: %TRUE if @colorsel can set the opacity, %FALSE otherwise. * * Sets the @colorsel to use or not use opacity. * **/ void gtk_color_selection_set_has_opacity_control (GtkColorSelection *colorsel, gboolean has_opacity) { ColorSelectionPrivate *priv; g_return_if_fail (GTK_IS_COLOR_SELECTION (colorsel)); priv = colorsel->private_data; has_opacity = has_opacity != FALSE; if (priv->has_opacity != has_opacity) { priv->has_opacity = has_opacity; if (has_opacity) { gtk_widget_show (priv->opacity_slider); gtk_widget_show (priv->opacity_label); gtk_widget_show (priv->opacity_entry); } else { gtk_widget_hide (priv->opacity_slider); gtk_widget_hide (priv->opacity_label); gtk_widget_hide (priv->opacity_entry); } color_sample_draw_samples (colorsel); g_object_notify (G_OBJECT (colorsel), "has_opacity_control"); } } /** * gtk_color_selection_get_has_palette: * @colorsel: a #GtkColorSelection. * * Determines whether the color selector has a color palette. * * Return value: %TRUE if the selector has a palette. %FALSE if it hasn't. **/ gboolean gtk_color_selection_get_has_palette (GtkColorSelection *colorsel) { ColorSelectionPrivate *priv; g_return_val_if_fail (GTK_IS_COLOR_SELECTION (colorsel), FALSE); priv = colorsel->private_data; return priv->has_palette; } /** * gtk_color_selection_set_has_palette: * @colorsel: a #GtkColorSelection. * @has_palette: %TRUE if palette is to be visible, %FALSE otherwise. * * Shows and hides the palette based upon the value of @has_palette. * **/ void gtk_color_selection_set_has_palette (GtkColorSelection *colorsel, gboolean has_palette) { ColorSelectionPrivate *priv; g_return_if_fail (GTK_IS_COLOR_SELECTION (colorsel)); priv = colorsel->private_data; has_palette = has_palette != FALSE; if (priv->has_palette != has_palette) { priv->has_palette = has_palette; if (has_palette) gtk_widget_show (priv->palette_frame); else gtk_widget_hide (priv->palette_frame); g_object_notify (G_OBJECT (colorsel), "has_palette"); } } /** * gtk_color_selection_set_current_color: * @colorsel: a #GtkColorSelection. * @color: A #GdkColor to set the current color with. * * Sets the current color to be @color. The first time this is called, it will * also set the original color to be @color too. **/ void gtk_color_selection_set_current_color (GtkColorSelection *colorsel, GdkColor *color) { ColorSelectionPrivate *priv; gint i; gboolean previous_changed; g_return_if_fail (GTK_IS_COLOR_SELECTION (colorsel)); priv = colorsel->private_data; priv->changing = TRUE; priv->color[COLORSEL_RED] = SCALE (color->red); priv->color[COLORSEL_GREEN] = SCALE (color->green); priv->color[COLORSEL_BLUE] = SCALE (color->blue); gtk_rgb_to_hsv (priv->color[COLORSEL_RED], priv->color[COLORSEL_GREEN], priv->color[COLORSEL_BLUE], &priv->color[COLORSEL_HUE], &priv->color[COLORSEL_SATURATION], &priv->color[COLORSEL_VALUE]); if (priv->default_set == FALSE) { previous_changed = TRUE; for (i = 0; i < COLORSEL_NUM_CHANNELS; i++) priv->old_color[i] = priv->color[i]; } priv->default_set = TRUE; update_color (colorsel); } /** * gtk_color_selection_set_current_alpha: * @colorsel: a #GtkColorSelection. * @alpha: an integer between 0 and 65535. * * Sets the current opacity to be @alpha. The first time this is called, it will * also set the original opacity to be @alpha too. **/ void gtk_color_selection_set_current_alpha (GtkColorSelection *colorsel, guint16 alpha) { ColorSelectionPrivate *priv; gint i; g_return_if_fail (GTK_IS_COLOR_SELECTION (colorsel)); priv = colorsel->private_data; priv->changing = TRUE; priv->color[COLORSEL_OPACITY] = SCALE (alpha); if (priv->default_alpha_set == FALSE) { for (i = 0; i < COLORSEL_NUM_CHANNELS; i++) priv->old_color[i] = priv->color[i]; } priv->default_alpha_set = TRUE; update_color (colorsel); } /** * gtk_color_selection_set_color: * @colorsel: a #GtkColorSelection. * @color: an array of 4 doubles specifying the red, green, blue and opacity * to set the current color to. * * Sets the current color to be @color. The first time this is called, it will * also set the original color to be @color too. * * This function is deprecated, use gtk_color_selection_set_current_color() instead. **/ void gtk_color_selection_set_color (GtkColorSelection *colorsel, gdouble *color) { ColorSelectionPrivate *priv; gint i; g_return_if_fail (GTK_IS_COLOR_SELECTION (colorsel)); priv = colorsel->private_data; priv->changing = TRUE; priv->color[COLORSEL_RED] = color[0]; priv->color[COLORSEL_GREEN] = color[1]; priv->color[COLORSEL_BLUE] = color[2]; priv->color[COLORSEL_OPACITY] = color[3]; gtk_rgb_to_hsv (priv->color[COLORSEL_RED], priv->color[COLORSEL_GREEN], priv->color[COLORSEL_BLUE], &priv->color[COLORSEL_HUE], &priv->color[COLORSEL_SATURATION], &priv->color[COLORSEL_VALUE]); if (priv->default_set == FALSE) { for (i = 0; i < COLORSEL_NUM_CHANNELS; i++) priv->old_color[i] = priv->color[i]; } priv->default_set = TRUE; priv->default_alpha_set = TRUE; update_color (colorsel); } /** * gtk_color_selection_get_current_color: * @colorsel: a #GtkColorSelection. * @color: a #GdkColor to fill in with the current color. * * Sets @color to be the current color in the GtkColorSelection widget. **/ void gtk_color_selection_get_current_color (GtkColorSelection *colorsel, GdkColor *color) { ColorSelectionPrivate *priv; g_return_if_fail (GTK_IS_COLOR_SELECTION (colorsel)); priv = colorsel->private_data; color->red = UNSCALE (priv->color[COLORSEL_RED]); color->green = UNSCALE (priv->color[COLORSEL_GREEN]); color->blue = UNSCALE (priv->color[COLORSEL_BLUE]); } /** * gtk_color_selection_get_current_alpha: * @colorsel: a #GtkColorSelection. * * Returns the current alpha value. * * Return value: an integer between 0 and 65535. **/ guint16 gtk_color_selection_get_current_alpha (GtkColorSelection *colorsel) { ColorSelectionPrivate *priv; g_return_val_if_fail (GTK_IS_COLOR_SELECTION (colorsel), 0); priv = colorsel->private_data; return priv->has_opacity ? UNSCALE (priv->color[COLORSEL_OPACITY]) : 65535; } /** * gtk_color_selection_get_color: * @colorsel: a #GtkColorSelection. * @color: an array of 4 #gdouble to fill in with the current color. * * Sets @color to be the current color in the GtkColorSelection widget. * * This function is deprecated, use gtk_color_selection_get_current_color() instead. **/ void gtk_color_selection_get_color (GtkColorSelection *colorsel, gdouble *color) { ColorSelectionPrivate *priv; g_return_if_fail (GTK_IS_COLOR_SELECTION (colorsel)); priv = colorsel->private_data; color[0] = priv->color[COLORSEL_RED]; color[1] = priv->color[COLORSEL_GREEN]; color[2] = priv->color[COLORSEL_BLUE]; color[3] = priv->has_opacity ? priv->color[COLORSEL_OPACITY] : 65535; } /** * gtk_color_selection_set_previous_color: * @colorsel: a #GtkColorSelection. * @color: a #GdkColor to set the previous color with. * * Sets the 'previous' color to be @color. This function should be called with * some hesitations, as it might seem confusing to have that color change. * Calling gtk_color_selection_set_current_color() will also set this color the first * time it is called. **/ void gtk_color_selection_set_previous_color (GtkColorSelection *colorsel, GdkColor *color) { ColorSelectionPrivate *priv; g_return_if_fail (GTK_IS_COLOR_SELECTION (colorsel)); priv = colorsel->private_data; priv->changing = TRUE; priv->old_color[COLORSEL_RED] = SCALE (color->red); priv->old_color[COLORSEL_GREEN] = SCALE (color->green); priv->old_color[COLORSEL_BLUE] = SCALE (color->blue); gtk_rgb_to_hsv (priv->old_color[COLORSEL_RED], priv->old_color[COLORSEL_GREEN], priv->old_color[COLORSEL_BLUE], &priv->old_color[COLORSEL_HUE], &priv->old_color[COLORSEL_SATURATION], &priv->old_color[COLORSEL_VALUE]); color_sample_draw_samples (colorsel); priv->default_set = TRUE; } /** * gtk_color_selection_set_previous_alpha: * @colorsel: a #GtkColorSelection. * @alpha: an integer between 0 and 65535. * * Sets the 'previous' alpha to be @alpha. This function should be called with * some hesitations, as it might seem confusing to have that alpha change. **/ void gtk_color_selection_set_previous_alpha (GtkColorSelection *colorsel, guint16 alpha) { ColorSelectionPrivate *priv; g_return_if_fail (GTK_IS_COLOR_SELECTION (colorsel)); priv = colorsel->private_data; priv->changing = TRUE; priv->old_color[COLORSEL_OPACITY] = SCALE (alpha); color_sample_draw_samples (colorsel); priv->default_alpha_set = TRUE; } /** * gtk_color_selection_get_previous_color: * @colorsel: a #GtkColorSelection. * @color: a #GdkColor to fill in with the original color value. * * Fills @color in with the original color value. **/ void gtk_color_selection_get_previous_color (GtkColorSelection *colorsel, GdkColor *color) { ColorSelectionPrivate *priv; g_return_if_fail (GTK_IS_COLOR_SELECTION (colorsel)); priv = colorsel->private_data; color->red = UNSCALE (priv->old_color[COLORSEL_RED]); color->green = UNSCALE (priv->old_color[COLORSEL_GREEN]); color->blue = UNSCALE (priv->old_color[COLORSEL_BLUE]); } /** * gtk_color_selection_get_previous_alpha: * @colorsel: a #GtkColorSelection. * * Returns the previous alpha value. * * Return value: an integer between 0 and 65535. **/ guint16 gtk_color_selection_get_previous_alpha (GtkColorSelection *colorsel) { ColorSelectionPrivate *priv; g_return_val_if_fail (GTK_IS_COLOR_SELECTION (colorsel), 0); priv = colorsel->private_data; return priv->has_opacity ? UNSCALE (priv->old_color[COLORSEL_OPACITY]) : 65535; } /** * gtk_color_selection_set_palette_color: * @colorsel: a #GtkColorSelection. * @index: the color index of the palette. * @color: A #GdkColor to set the palette with. * * Sets the palette located at @index to have @color as its color. * **/ static void gtk_color_selection_set_palette_color (GtkColorSelection *colorsel, gint index, GdkColor *color) { ColorSelectionPrivate *priv; gint x, y; gdouble col[3]; g_return_if_fail (GTK_IS_COLOR_SELECTION (colorsel)); g_return_if_fail (index >= 0 && index < GTK_CUSTOM_PALETTE_WIDTH*GTK_CUSTOM_PALETTE_HEIGHT); x = index % GTK_CUSTOM_PALETTE_WIDTH; y = index / GTK_CUSTOM_PALETTE_WIDTH; priv = colorsel->private_data; col[0] = SCALE (color->red); col[1] = SCALE (color->green); col[2] = SCALE (color->blue); palette_set_color (priv->custom_palette[x][y], colorsel, col); } /** * gtk_color_selection_get_palette_color: * @colorsel: a #GtkColorSelection. * @index: the color index of the palette. * @color: a #GdkColor to fill in with the color value. * * Set @color to have the color found in the palette at @index. If * the palette is unset, it will leave the color unset. * * Return value: %TRUE if the palette located at @index has a color set. %FALSE * if it doesn't. **/ static gboolean gtk_color_selection_get_palette_color (GtkColorSelection *colorsel, gint index, GdkColor *color) { ColorSelectionPrivate *priv; gint x, y; gdouble col[4]; g_return_val_if_fail (GTK_IS_COLOR_SELECTION (colorsel), FALSE); g_return_val_if_fail (index >= 0 && index < GTK_CUSTOM_PALETTE_WIDTH*GTK_CUSTOM_PALETTE_HEIGHT, FALSE); priv = colorsel->private_data; x = index % GTK_CUSTOM_PALETTE_WIDTH; y = index / GTK_CUSTOM_PALETTE_WIDTH; if (GPOINTER_TO_INT (gtk_object_get_data (GTK_OBJECT (priv->custom_palette[x][y]), "color_set")) == 0) return FALSE; palette_get_color (priv->custom_palette[x][y], col); color->red = UNSCALE (col[0]); color->green = UNSCALE (col[1]); color->blue = UNSCALE (col[2]); return TRUE; } /** * gtk_color_selection_unset_palette_color: * @colorsel: a #GtkColorSelection. * @index: the color index in the palette. * * Changes the palette located @index to have no color set. **/ static void gtk_color_selection_unset_palette_color (GtkColorSelection *colorsel, gint index) { ColorSelectionPrivate *priv; gint x, y; g_return_if_fail (GTK_IS_COLOR_SELECTION (colorsel)); g_return_if_fail (index >= 0 && index < GTK_CUSTOM_PALETTE_WIDTH*GTK_CUSTOM_PALETTE_HEIGHT); x = index % GTK_CUSTOM_PALETTE_WIDTH; y = index / GTK_CUSTOM_PALETTE_WIDTH; priv = colorsel->private_data; palette_unset_color (priv->custom_palette[x][y]); } /** * gtk_color_selection_get_current_alpha: * @colorsel: a #GtkColorSelection. * * Returns the maximum number of palette colors. * * Return value: the maximum number of palette indexes. **/ static gint gtk_color_selection_get_palette_size (GtkColorSelection *colorsel) { return GTK_CUSTOM_PALETTE_WIDTH * GTK_CUSTOM_PALETTE_HEIGHT; } /** * gtk_color_selection_is_adjusting: * @colorsel: a #GtkColorSelection. * * Gets the current state of the @colorsel. * * Return value: %TRUE if the user is currently dragging a color around, and %FALSE * if the selection has stopped. **/ gboolean gtk_color_selection_is_adjusting (GtkColorSelection *colorsel) { ColorSelectionPrivate *priv; g_return_val_if_fail (GTK_IS_COLOR_SELECTION (colorsel), FALSE); priv = colorsel->private_data; return (gtk_hsv_is_adjusting (GTK_HSV (priv->triangle_colorsel))); } static void gtk_color_selection_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec) { GtkColorSelection *colorsel = GTK_COLOR_SELECTION (object); switch (prop_id) { case PROP_HAS_OPACITY_CONTROL: gtk_color_selection_set_has_opacity_control (colorsel, g_value_get_boolean (value)); break; case PROP_HAS_PALETTE: gtk_color_selection_set_has_palette (colorsel, g_value_get_boolean (value)); break; case PROP_CURRENT_COLOR: gtk_color_selection_set_current_color (colorsel, g_value_get_boxed (value)); break; case PROP_CURRENT_ALPHA: gtk_color_selection_set_current_alpha (colorsel, g_value_get_uint (value)); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); break; } } static void gtk_color_selection_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec) { GtkColorSelection *colorsel = GTK_COLOR_SELECTION (object); GdkColor color; switch (prop_id) { case PROP_HAS_OPACITY_CONTROL: g_value_set_boolean (value, gtk_color_selection_get_has_opacity_control (colorsel)); break; case PROP_HAS_PALETTE: g_value_set_boolean (value, gtk_color_selection_get_has_palette (colorsel)); break; case PROP_CURRENT_COLOR: gtk_color_selection_get_current_color (colorsel, &color); g_value_set_boxed (value, &color); break; case PROP_CURRENT_ALPHA: g_value_set_uint (value, gtk_color_selection_get_current_alpha (colorsel)); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); break; } } /** * gtk_color_selection_palette_from_string: * @str: a string encoding a color palette. * @colors: return location for allocated array of #GdkColor. * @n_colors: return location for length of array. * * Parses a color palette string; the string is a colon-separated * list of color names readable by gdk_color_parse(). * * Return value: %TRUE if a palette was successfully parsed. **/ gboolean gtk_color_selection_palette_from_string (const gchar *str, GdkColor **colors, gint *n_colors) { GdkColor *retval; gint count; gchar *p; gchar *start; gchar *copy; count = 0; retval = NULL; copy = g_strdup (str); start = copy; p = copy; while (TRUE) { if (*p == ':' || *p == '\0') { gboolean done = TRUE; if (start == p) { goto failed; /* empty entry */ } if (*p) { *p = '\0'; done = FALSE; } retval = g_renew (GdkColor, retval, count + 1); if (!gdk_color_parse (start, retval + count)) { goto failed; } ++count; if (done) break; else start = p + 1; } ++p; } g_free (copy); if (colors) *colors = retval; else g_free (retval); if (n_colors) *n_colors = count; return TRUE; failed: g_free (copy); g_free (retval); if (colors) *colors = NULL; if (n_colors) *n_colors = 0; return FALSE; } /** * gtk_color_selection_palette_to_string: * @colors: an array of colors. * @n_colors: length of the array. * * Encodes a palette as a string, useful for persistent storage. * * Return value: allocated string encoding the palette. **/ gchar* gtk_color_selection_palette_to_string (const GdkColor *colors, gint n_colors) { gint i; gchar **strs = NULL; gchar *retval; if (n_colors == 0) return g_strdup (""); strs = g_new0 (gchar*, n_colors + 1); i = 0; while (i < n_colors) { gchar *ptr; strs[i] = g_strdup_printf ("#%2X%2X%2X", colors[i].red / 256, colors[i].green / 256, colors[i].blue / 256); for (ptr = strs[i]; *ptr; ptr++) if (*ptr == ' ') *ptr = '0'; ++i; } retval = g_strjoinv (":", strs); g_strfreev (strs); return retval; } /** * gtk_color_selection_set_change_palette_hook: * @func: a function to call when the custom palette needs saving. * * Installs a global function to be called whenever the user tries to * modify the palette in a color selection. This function should save * the new palette contents, and update the GtkSettings property * "gtk-color-palette" so all GtkColorSelection widgets will be modified. * * This function is deprecated in favor of * gtk_color_selection_set_change_palette_with_screen_hook(), and does * not work in multihead environments. * * Return value: the previous change palette hook (that was replaced). **/ GtkColorSelectionChangePaletteFunc gtk_color_selection_set_change_palette_hook (GtkColorSelectionChangePaletteFunc func) { GtkColorSelectionChangePaletteFunc old; old = noscreen_change_palette_hook; noscreen_change_palette_hook = func; return old; } /** * gtk_color_selection_set_change_palette_hook: * @func: a function to call when the custom palette needs saving. * * Installs a global function to be called whenever the user tries to * modify the palette in a color selection. This function should save * the new palette contents, and update the GtkSettings property * "gtk-color-palette" so all GtkColorSelection widgets will be modified. * * Return value: the previous change palette hook (that was replaced). **/ GtkColorSelectionChangePaletteWithScreenFunc gtk_color_selection_set_change_palette_with_screen_hook (GtkColorSelectionChangePaletteWithScreenFunc func) { GtkColorSelectionChangePaletteWithScreenFunc old; old = change_palette_hook; change_palette_hook = func; return old; }