/* 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 1997-2000. 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" #if defined (GDK_WINDOWING_X11) #include "x11/gdkx.h" #elif defined (GDK_WINDOWING_WIN32) #include "win32/gdkwin32.h" #elif defined (GDK_WINDOWING_FB) #include "linux-fb/gdkfb.h" #endif #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 "gtkpixmap.h" #include "gtkspinbutton.h" #include "gtkrange.h" #include "gtkhscale.h" #include "gtkentry.h" #include "gtkbutton.h" #include "gtkhseparator.h" #include "gtkintl.h" /* Number of elements in the custom palatte */ #define GTK_CUSTOM_PALETTE_WIDTH 10 #define GTK_CUSTOM_PALETTE_HEIGHT 2 enum { COLOR_CHANGED, LAST_SIGNAL }; 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 use_opacity : 1; guint use_palette : 1; guint changing : 1; guint default_set : 1; /* The color dropper */ guint moving_dropper : 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]; GtkWidget *last_palette; /* The color_sample stuff */ GtkWidget *sample_area; GtkWidget *old_sample; GtkWidget *cur_sample; GtkWidget *colorsel; }; 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 gpointer parent_class = NULL; static guint color_selection_signals[LAST_SIGNAL] = { 0 }; /* 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, }; static GdkCursor *picker_cursor = NULL; /* 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_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->use_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->use_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) (255.0 * priv->old_color[i]); goff = 0; } else { da = priv->cur_sample; for (n = 0, i = COLORSEL_RED; n < 3; n++, i++) c[n] = (guchar) (255.0 * priv->color[i]); 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->use_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->use_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 void color_old_sample_expose(GtkWidget* da, GdkEventExpose* event, GtkColorSelection *colorsel) { color_sample_draw_sample (colorsel, 0); } static void color_cur_sample_expose(GtkWidget* da, GdkEventExpose* event, GtkColorSelection *colorsel) { color_sample_draw_sample (colorsel, 1); } 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 (); 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_widget_show_all (priv->sample_area); } /* * * The palette area code * */ #define CUSTOM_PALETTE_ENTRY_WIDTH 16 #define CUSTOM_PALETTE_ENTRY_HEIGHT 16 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) { GtkColorSelection *colorsel = GTK_COLOR_SELECTION (data); ColorSelectionPrivate *priv = colorsel->private_data; if (drawing_area->window == NULL) return; gdk_window_clear_area (drawing_area->window, area->x, area->y, area->width, area->height); if (priv->last_palette == drawing_area) { GdkGC *gc; gdouble color[4]; palette_get_color (drawing_area, color); if (INTENSITY (color[0], color[1], color[2]) > 0.5) gc = drawing_area->style->black_gc; else gc = drawing_area->style->white_gc; gdk_draw_rectangle (drawing_area->window, gc, FALSE, 0, 0, drawing_area->allocation.width - 1, drawing_area->allocation.height - 1); } } static void palette_expose (GtkWidget *drawing_area, GdkEventExpose *event, gpointer data) { if (drawing_area->window == NULL) return; palette_paint (drawing_area, &(event->area), data); } static void palette_press (GtkWidget *drawing_area, GdkEventButton *event, gpointer data) { GtkColorSelection *colorsel = GTK_COLOR_SELECTION (data); ColorSelectionPrivate *priv = colorsel->private_data; if (priv->last_palette != NULL) gtk_widget_queue_clear (priv->last_palette); priv->last_palette = drawing_area; 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); } gtk_widget_queue_clear (priv->last_palette); } 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_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_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_set_color (GtkWidget *drawing_area, GtkColorSelection *colorsel, gdouble *color) { GtkRcStyle *rc_style; gdouble *new_color = g_new (double, 4); gdouble *old_color; rc_style = gtk_rc_style_new (); rc_style->bg[GTK_STATE_NORMAL].red = color[0]*65535; rc_style->bg[GTK_STATE_NORMAL].green = color[1]*65535; rc_style->bg[GTK_STATE_NORMAL].blue = color[2]*65535; rc_style->color_flags[GTK_STATE_NORMAL] = GTK_RC_BG; gtk_rc_style_ref (rc_style); gtk_widget_modify_style (drawing_area, rc_style); 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)); } else { old_color = (gdouble *) gtk_object_get_data (GTK_OBJECT (drawing_area), "color_val"); if (old_color) { g_free (old_color); } } new_color[0] = color[0]; new_color[1] = color[1]; new_color[2] = color[2]; new_color[3] = 1.0; gtk_object_set_data (GTK_OBJECT (drawing_area), "color_val", new_color); } 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 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_set_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) { GtkColorSelection *colorsel = data; ColorSelectionPrivate *priv; if ((event->keyval == ' ') || (event->keyval == GDK_Return)) { priv = colorsel->private_data; palette_set_color (widget, GTK_COLOR_SELECTION (data), priv->color); } return TRUE; } static GtkWidget* palette_new (GtkColorSelection *colorsel) { GtkWidget *retval; static const GtkTargetEntry targets[] = { { "application/x-color", 0 } }; retval = gtk_drawing_area_new (); gtk_object_set_data (GTK_OBJECT (retval), "color_set", GINT_TO_POINTER (0)); gtk_widget_set_events (retval, GDK_BUTTON_PRESS_MASK | GDK_EXPOSURE_MASK); gtk_signal_connect (GTK_OBJECT (retval), "expose_event", palette_expose, colorsel); gtk_signal_connect (GTK_OBJECT (retval), "button_press_event", palette_press, 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", palette_drag_end, NULL); gtk_signal_connect (GTK_OBJECT (retval), "drag_data_received", palette_drop_handle, colorsel); gtk_signal_connect (GTK_OBJECT (retval), "key_press_event", GTK_SIGNAL_FUNC (palette_activate), colorsel); return retval; } /* * * The actual GtkColorSelection widget * */ static void initialize_cursor (void) { GdkColor fg, bg; GdkPixmap *pixmap = gdk_bitmap_create_from_data (NULL, dropper_bits, DROPPER_WIDTH, DROPPER_HEIGHT); GdkPixmap *mask = gdk_bitmap_create_from_data (NULL, dropper_mask, DROPPER_WIDTH, DROPPER_HEIGHT); gdk_color_white (gdk_colormap_get_system (), &bg); gdk_color_black (gdk_colormap_get_system (), &fg); picker_cursor = gdk_cursor_new_from_pixmap (pixmap, mask, &fg, &bg, DROPPER_X_HOT ,DROPPER_Y_HOT); gdk_pixmap_unref (pixmap); gdk_pixmap_unref (mask); } static void grab_color_at_mouse (GtkWidget *button, gint x_root, gint y_root, gpointer data) { GdkImage *image; guint32 pixel; GtkColorSelection *colorsel = data; ColorSelectionPrivate *priv; GdkColormap *colormap = gdk_colormap_get_system (); GdkColor color; priv = colorsel->private_data; image = gdk_image_get (GDK_ROOT_PARENT (), 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] = (double)color.red / 65535.0; priv->color[COLORSEL_GREEN] = (double)color.green / 65535.0; priv->color[COLORSEL_BLUE] = (double)color.blue / 65535.0; 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); } static void mouse_motion (GtkWidget *button, GdkEventMotion *event, gpointer data) { grab_color_at_mouse (button, event->x_root, event->y_root, data); } static void mouse_release (GtkWidget *button, GdkEventButton *event, gpointer data) { GtkColorSelection *colorsel = data; ColorSelectionPrivate *priv; priv = colorsel->private_data; gtk_signal_disconnect_by_func (GTK_OBJECT (button), mouse_motion, data); gtk_signal_disconnect_by_func (GTK_OBJECT (button), mouse_release, data); grab_color_at_mouse (button, event->x_root, event->y_root, data); gdk_pointer_ungrab (0); } /* Helper Functions */ static void mouse_press (GtkWidget *button, GdkEventButton *event, gpointer data) { GtkColorSelection *colorsel = data; ColorSelectionPrivate *priv; priv = colorsel->private_data; gtk_signal_connect (GTK_OBJECT (button), "motion_notify_event", mouse_motion, data); gtk_signal_connect (GTK_OBJECT (button), "button_release_event", mouse_release, data); gtk_signal_disconnect_by_func (GTK_OBJECT (button), mouse_press, data); } /* 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; if (picker_cursor == NULL) { initialize_cursor (); } /* Why do we do this? Because the "clicked" signal will be emitted after the "button_released" signal. We don't want to do this stuff again, though, or else it will get trapped here. So, priv->moving_dropper is initialized to FALSE at the initialization of the colorselector, it is initialized to true when we start waiting for the user to click the the dropper on a color, and whenver it is true when this function starts to execute, we set it to false. */ if (priv->moving_dropper == FALSE) { priv->moving_dropper = TRUE; gtk_signal_connect (GTK_OBJECT (button), "button_press_event", mouse_press, colorsel); gdk_pointer_grab (button->window, FALSE, GDK_BUTTON_RELEASE_MASK | GDK_BUTTON_PRESS_MASK | GDK_POINTER_MOTION_MASK, NULL, picker_cursor, 0); } else { priv->moving_dropper = FALSE; } } 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 widget_focus_in (GtkWidget *drawing_area, GdkEventFocus *event, gpointer data) { GtkColorSelection *colorsel = GTK_COLOR_SELECTION (data); ColorSelectionPrivate *priv = colorsel->private_data; /* This signal is connected to by all of the widgets except the "Set Color" button * This will let you add a color to the currently selected palette */ priv->last_palette = NULL; } static void make_label_spinbutton (GtkColorSelection *colorsel, GtkWidget **spinbutton, gchar *text, GtkWidget *table, gint i, gint j, gint channel_type) { GtkWidget *label; GtkAdjustment *adjust; 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_signal_connect (GTK_OBJECT (*spinbutton), "focus_in_event", widget_focus_in, colorsel); gtk_signal_connect (GTK_OBJECT (adjust), "value_changed", adjustment_changed, GINT_TO_POINTER (channel_type)); label = gtk_label_new (text); 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; if (priv->last_palette != NULL) gtk_widget_queue_clear (priv->last_palette); priv->last_palette = priv->custom_palette[x][y]; gtk_widget_queue_clear (priv->last_palette); } 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)), priv->color[COLORSEL_HUE] * 360); gtk_adjustment_set_value (gtk_spin_button_get_adjustment (GTK_SPIN_BUTTON (priv->sat_spinbutton)), priv->color[COLORSEL_SATURATION] * 255); gtk_adjustment_set_value (gtk_spin_button_get_adjustment (GTK_SPIN_BUTTON (priv->val_spinbutton)), priv->color[COLORSEL_VALUE] * 255); gtk_adjustment_set_value (gtk_spin_button_get_adjustment (GTK_SPIN_BUTTON (priv->red_spinbutton)), priv->color[COLORSEL_RED] * 255); gtk_adjustment_set_value (gtk_spin_button_get_adjustment (GTK_SPIN_BUTTON (priv->green_spinbutton)), priv->color[COLORSEL_GREEN] * 255); gtk_adjustment_set_value (gtk_spin_button_get_adjustment (GTK_SPIN_BUTTON (priv->blue_spinbutton)), priv->color[COLORSEL_BLUE] * 255); gtk_adjustment_set_value (gtk_range_get_adjustment (GTK_RANGE (priv->opacity_slider)), priv->color[COLORSEL_OPACITY] * 255); g_snprintf (opacity_text, 32, "%.0f", priv->color[COLORSEL_OPACITY] * 255); gtk_entry_set_text (GTK_ENTRY (priv->opacity_entry), opacity_text); g_snprintf (entryval, 11, "#%2X%2X%2X", (guint) (255 * priv->color[COLORSEL_RED]), (guint) (255 * priv->color[COLORSEL_GREEN]), (guint) (255 * priv->color[COLORSEL_BLUE])); for (ptr = entryval; *ptr; ptr++) if (*ptr == ' ') *ptr = '0'; gtk_entry_set_text (GTK_ENTRY (priv->hex_entry), entryval); priv->changing = FALSE; } static void add_button_pressed (GtkWidget *button, GtkColorSelection *colorsel) { ColorSelectionPrivate *priv; gint i, j; priv = colorsel->private_data; for (j = 0; j < GTK_CUSTOM_PALETTE_HEIGHT; j++) { for (i = 0; i < GTK_CUSTOM_PALETTE_WIDTH; i++) { /* Either last_palette is set and we're on it, or it's an empty palette */ if ((priv->last_palette && priv->last_palette == priv->custom_palette[i][j]) || ((priv->last_palette == NULL) && (GPOINTER_TO_INT (gtk_object_get_data (GTK_OBJECT (priv->custom_palette[i][j]), "color_set")) == 0))) { palette_set_color (priv->custom_palette[i][j], colorsel, priv->color); /* forward the selection */ if ((i == GTK_CUSTOM_PALETTE_WIDTH - 1) && (j == GTK_CUSTOM_PALETTE_HEIGHT - 1)) set_selected_palette (colorsel, 0, 0); else if (i == GTK_CUSTOM_PALETTE_WIDTH - 1) set_selected_palette (colorsel, 0, j + 1); else set_selected_palette (colorsel, i + 1, j); return; } } } /* the palette is totally full. Add to the first one totally arbitrarily */ palette_set_color (priv->custom_palette[0][0], colorsel, priv->color); /* forward the selection */ set_selected_palette (colorsel, 1, 0); } 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; object_class = (GtkObjectClass*) klass; parent_class = gtk_type_class (GTK_TYPE_VBOX); object_class->destroy = gtk_color_selection_destroy; 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); } /* widget functions */ static void gtk_color_selection_init (GtkColorSelection *colorsel) { GtkWidget *top_hbox; GtkWidget *top_right_vbox; GtkWidget *table, *label, *hbox, *frame, *vbox; GtkAdjustment *adjust; GdkPixmap *dropper_pixmap; GtkWidget *dropper_image; GtkWidget *button; GdkBitmap *mask = NULL; gint i, j; ColorSelectionPrivate *priv; priv = colorsel->private_data = g_new0 (ColorSelectionPrivate, 1); priv->changing = FALSE; priv->default_set = FALSE; priv->last_palette = NULL; priv->moving_dropper = FALSE; 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", 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); 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_signal_connect (GTK_OBJECT (button), "focus_in_event", widget_focus_in, colorsel); 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", get_screen_color, NULL); dropper_pixmap = gdk_pixmap_colormap_create_from_xpm_d (NULL, gtk_widget_get_colormap (button), &mask, NULL, picker); dropper_image = gtk_pixmap_new (dropper_pixmap, mask); gdk_pixmap_unref (dropper_pixmap); if (mask) gdk_pixmap_unref (mask); gtk_container_add (GTK_CONTAINER (button), dropper_image); gtk_box_pack_end (GTK_BOX (hbox), button, FALSE, FALSE, 0); 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); make_label_spinbutton (colorsel, &priv->sat_spinbutton, _("Saturation:"), table, 0, 1, COLORSEL_SATURATION); make_label_spinbutton (colorsel, &priv->val_spinbutton, _("Value:"), table, 0, 2, COLORSEL_VALUE); make_label_spinbutton (colorsel, &priv->red_spinbutton, _("Red:"), table, 6, 0, COLORSEL_RED); make_label_spinbutton (colorsel, &priv->green_spinbutton, _("Green:"), table, 6, 1, COLORSEL_GREEN); make_label_spinbutton (colorsel, &priv->blue_spinbutton, _("Blue:"), table, 6, 2, COLORSEL_BLUE); gtk_table_attach_defaults (GTK_TABLE (table), gtk_hseparator_new (), 0, 8, 3, 4); priv->opacity_label = gtk_label_new (_("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_scale_set_draw_value (GTK_SCALE (priv->opacity_slider), FALSE); gtk_signal_connect (GTK_OBJECT(adjust), "value_changed", 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), "focus_in_event", widget_focus_in, colorsel); gtk_signal_connect (GTK_OBJECT (priv->opacity_entry), "activate", opacity_entry_changed, colorsel); gtk_table_attach_defaults (GTK_TABLE (table), priv->opacity_entry, 7, 8, 4, 5); label = gtk_label_new (_("Hex Value:")); 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_signal_connect (GTK_OBJECT (priv->hex_entry), "activate", hex_changed, colorsel); 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 (_("Custom Palette")); 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); button = gtk_button_new_with_label (_("Set Color")); gtk_signal_connect (GTK_OBJECT (button), "clicked", add_button_pressed, colorsel); gtk_box_pack_start (GTK_BOX (vbox), button, FALSE, FALSE, 0); gtk_container_set_border_width (GTK_CONTAINER (vbox), 4); gtk_widget_show_all (top_hbox); if (priv->use_opacity == FALSE) { gtk_widget_hide (priv->opacity_label); gtk_widget_hide (priv->opacity_slider); gtk_widget_hide (priv->opacity_entry); } if (priv->use_palette == FALSE) { gtk_widget_hide (priv->palette_frame); } } static void gtk_color_selection_destroy (GtkObject *object) { GtkColorSelection *cselection = GTK_COLOR_SELECTION (object); if (cselection->private_data) { g_free (cselection->private_data); cselection->private_data = NULL; } GTK_OBJECT_CLASS (parent_class)->destroy (object); } /** * gtk_color_selection_new: * * Creates a new GtkColorSelection. * * Return value: The 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_use_opacity (colorsel, FALSE); /* We want to make sure that default_set is FALSE */ /* This way the user can still set it */ priv->default_set = FALSE; return GTK_WIDGET (colorsel); } void gtk_color_selection_set_update_policy (GtkColorSelection *colorsel, GtkUpdateType policy) { g_return_if_fail (colorsel != NULL); g_return_if_fail (GTK_IS_COLOR_SELECTION (colorsel)); /* */ g_warning (G_STRLOC ": This function is deprecated."); } /** * gtk_color_selection_get_use_opacity: * @colorsel: A GtkColorSelection. * * Determines whether the colorsel can use opacity. * * Return value: TRUE if the @colorsel uses opacity. FALSE if it does't. **/ gboolean gtk_color_selection_get_use_opacity (GtkColorSelection *colorsel) { ColorSelectionPrivate *priv; g_return_val_if_fail (colorsel != NULL, FALSE); g_return_val_if_fail (GTK_IS_COLOR_SELECTION (colorsel), FALSE); priv = colorsel->private_data; return priv->use_opacity; } /** * gtk_color_selection_set_use_opacity: * @colorsel: A GtkColorSelection. * @use_opacity: TRUE if @colorsel can set the opacity, FALSE otherwise. * * Sets the @colorsel to use or not use opacity. * **/ void gtk_color_selection_set_use_opacity (GtkColorSelection *colorsel, gboolean use_opacity) { ColorSelectionPrivate *priv; g_return_if_fail (colorsel != NULL); g_return_if_fail (GTK_IS_COLOR_SELECTION (colorsel)); priv = colorsel->private_data; use_opacity = use_opacity != FALSE; if (priv->use_opacity != use_opacity) { priv->use_opacity = use_opacity; if (use_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); } } /** * gtk_color_selection_get_use_palette: * @colorsel: A GtkColorSelection. * * Determines whether the palette is used. * * Return value: TRUE if the palette is used. FALSE if it isn't. **/ gboolean gtk_color_selection_get_use_palette (GtkColorSelection *colorsel) { ColorSelectionPrivate *priv; g_return_val_if_fail (GTK_IS_COLOR_SELECTION (colorsel), FALSE); priv = colorsel->private_data; return priv->use_palette; } /** * gtk_color_selection_set_use_palette: * @colorsel: A GtkColorSelection. * @use_palette: TRUE if palette is to be visible, FALSE otherwise. * * Shows and hides the palette based upon the value of @use_palette. * **/ void gtk_color_selection_set_use_palette (GtkColorSelection *colorsel, gboolean use_palette) { ColorSelectionPrivate *priv; g_return_if_fail (colorsel != NULL); g_return_if_fail (GTK_IS_COLOR_SELECTION (colorsel)); priv = colorsel->private_data; use_palette = use_palette != FALSE; if (priv->use_palette != use_palette) { priv->use_palette = use_palette; if (use_palette) gtk_widget_show (priv->palette_frame); else gtk_widget_hide (priv->palette_frame); } } /** * gtk_color_selection_set_color: * @colorsel: A GtkColorSelection. * @color: A color 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_color (GtkColorSelection *colorsel, gdouble *color) { ColorSelectionPrivate *priv; gint i; g_return_if_fail (colorsel != NULL); 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]; } update_color (colorsel); priv->default_set = TRUE; } /** * gtk_color_selection_get_color: * @colorsel: A GtkColorSelection. * @color: A color to fill in with the current color. * * Sets @color to be the current color in the GtkColorSelection widget. * **/ void gtk_color_selection_get_color (GtkColorSelection *colorsel, gdouble *color) { ColorSelectionPrivate *priv; g_return_if_fail (colorsel != NULL); 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->use_opacity ? priv->color[COLORSEL_OPACITY] : 1.0; } /** * gtk_color_selection_get_old_color: * @colorsel: A GtkColorSelection. * @color: A color to set the original color with. * * Sets the 'original' 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_color will also set this color the first * time it is called. * **/ void gtk_color_selection_set_old_color (GtkColorSelection *colorsel, gdouble *color) { ColorSelectionPrivate *priv; g_return_if_fail (colorsel != NULL); g_return_if_fail (GTK_IS_COLOR_SELECTION (colorsel)); priv = colorsel->private_data; priv->changing = TRUE; priv->old_color[COLORSEL_RED] = color[0]; priv->old_color[COLORSEL_GREEN] = color[1]; priv->old_color[COLORSEL_BLUE] = color[2]; priv->old_color[COLORSEL_OPACITY] = color[3]; 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_get_old_color: * @colorsel: A GtkColorSelection. * @color: A color to fill in with the original color value. * * Fills @color in with the original color value. * **/ void gtk_color_selection_get_old_color (GtkColorSelection *colorsel, gdouble *color) { ColorSelectionPrivate *priv; g_return_if_fail (colorsel != NULL); g_return_if_fail (GTK_IS_COLOR_SELECTION (colorsel)); priv = colorsel->private_data; color[0] = priv->old_color[COLORSEL_RED]; color[1] = priv->old_color[COLORSEL_GREEN]; color[2] = priv->old_color[COLORSEL_BLUE]; color[3] = priv->use_opacity ? priv->old_color[COLORSEL_OPACITY] : 1.0; } /** * gtk_color_selection_set_palette_color: * @colorsel: A GtkColorSelection. * @x: The x coordinate of the palette. * @y: The y coordinate of the palette. * @color: A color to set the palette with. * * Set the palette located at (@x, @y) to have @color set as its color. * **/ void gtk_color_selection_set_palette_color (GtkColorSelection *colorsel, gint x, gint y, gdouble *color) { ColorSelectionPrivate *priv; g_return_if_fail (colorsel != NULL); g_return_if_fail (GTK_IS_COLOR_SELECTION (colorsel)); g_return_if_fail (x >= 0 && y >= 0 && x < GTK_CUSTOM_PALETTE_WIDTH && y < GTK_CUSTOM_PALETTE_HEIGHT); priv = colorsel->private_data; palette_set_color (priv->custom_palette[x][y], colorsel, color); } /** * gtk_color_selection_get_palette_color: * @colorsel: A GtkColorSelection. * @x: The x coordinate of the palette. * @y: The y coordinate of the palette. * @color: A color to fill in with the color value. * * Set @color to have the color found in the palette located at (@x, @y). If * the palette is unset, it will leave the color unset. * * Return value: TRUE if the palette located at (@x, @y) has a color set. FALSE * if it doesn't. **/ gboolean gtk_color_selection_get_palette_color (GtkColorSelection *colorsel, gint x, gint y, gdouble *color) { ColorSelectionPrivate *priv; g_return_val_if_fail (colorsel != NULL, FALSE); g_return_val_if_fail (GTK_IS_COLOR_SELECTION (colorsel), FALSE); g_return_val_if_fail (x >= 0 && y >= 0 && x < GTK_CUSTOM_PALETTE_WIDTH && y < GTK_CUSTOM_PALETTE_HEIGHT, FALSE); priv = colorsel->private_data; 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], color); return TRUE; } /** * gtk_color_selection_unset_palette_color: * @colorsel: A GtkColorSelection. * @x: The x coordinate of the palette. * @y: The y coordinate of the palette. * * Change the palette located at (@x, @y) to have no color set. * **/ void gtk_color_selection_unset_palette_color (GtkColorSelection *colorsel, gint x, gint y) { ColorSelectionPrivate *priv; g_return_if_fail (colorsel != NULL); g_return_if_fail (GTK_IS_COLOR_SELECTION (colorsel)); g_return_if_fail (x >= 0 && y >= 0 && x < GTK_CUSTOM_PALETTE_WIDTH && y < GTK_CUSTOM_PALETTE_HEIGHT); priv = colorsel->private_data; palette_unset_color (priv->custom_palette[x][y]); } /** * 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 (colorsel != NULL, FALSE); 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))); }