gimpinkoptions-gui.c 14.4 KB
Newer Older
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
/* The GIMP -- an image manipulation program
 * Copyright (C) 1995 Spencer Kimball and Peter Mattis
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 */

#include "config.h"

21 22
#include <string.h>

23 24 25 26 27 28
#include <gtk/gtk.h>

#include "libgimpwidgets/gimpwidgets.h"

#include "tools-types.h"

29 30
#include "paint/gimpink-blob.h"
#include "paint/gimpinkoptions.h"
31

32 33
#include "widgets/gimppropwidgets.h"

34
#include "gimpinkoptions-gui.h"
35
#include "gimppaintoptions-gui.h"
36

37
#include "gimp-intl.h"
38 39


40 41
static GtkWidget * brush_widget_new         (GimpInkOptions  *options);
static GtkWidget * blob_button_new          (GimpInkBlobType  blob_type);
42

43

44
GtkWidget *
45 46
gimp_ink_options_gui (GimpToolOptions *tool_options)
{
47 48 49
  GObject   *config;
  GtkWidget *table;
  GtkWidget *vbox;
50
  GtkWidget *brush_vbox;
51 52 53
  GtkWidget *hbox;
  GtkWidget *frame;
  GtkWidget *brush;
54

55
  config = G_OBJECT (tool_options);
56

57
  vbox = gimp_paint_options_gui (tool_options);
58 59

  /* adjust sliders */
60
  frame = gimp_frame_new (_("Adjustment"));
61 62 63 64 65 66 67 68 69 70
  gtk_box_pack_start (GTK_BOX (vbox), frame, FALSE, TRUE, 0);
  gtk_widget_show (frame);

  table = gtk_table_new (2, 3, FALSE);
  gtk_table_set_col_spacings (GTK_TABLE (table), 2);
  gtk_container_set_border_width (GTK_CONTAINER (table), 2);
  gtk_container_add (GTK_CONTAINER (frame), table);
  gtk_widget_show (table);

  /*  size slider  */
71 72 73 74 75
  gimp_prop_scale_entry_new (config, "size",
                             GTK_TABLE (table), 0, 0,
                             _("Size:"),
                             1.0, 2.0, 1,
                             FALSE, 0.0, 0.0);
76 77

  /* angle adjust slider */
78 79 80 81 82
  gimp_prop_scale_entry_new (config, "tilt-angle",
                             GTK_TABLE (table), 0, 1,
                             _("Angle:"),
                             1.0, 10.0, 1,
                             FALSE, 0.0, 0.0);
83 84

  /* sens sliders */
85
  frame = gimp_frame_new (_("Sensitivity"));
86 87 88 89 90 91 92 93 94 95
  gtk_box_pack_start (GTK_BOX (vbox), frame, FALSE, TRUE, 0);
  gtk_widget_show (frame);

  table = gtk_table_new (3, 3, FALSE);
  gtk_table_set_col_spacings (GTK_TABLE (table), 2);
  gtk_container_set_border_width (GTK_CONTAINER (table), 2);
  gtk_container_add (GTK_CONTAINER (frame), table);
  gtk_widget_show (table);

  /* size sens slider */
96
  gimp_prop_scale_entry_new (config, "size-sensitivity",
97 98 99 100
                             GTK_TABLE (table), 0, 0,
                             _("Size:"),
                             0.01, 0.1, 1,
                             FALSE, 0.0, 0.0);
101

102
  /* tilt sens slider */
103 104 105 106 107
  gimp_prop_scale_entry_new (config, "tilt-sensitivity",
                             GTK_TABLE (table), 0, 1,
                             _("Tilt:"),
                             0.01, 0.1, 1,
                             FALSE, 0.0, 0.0);
108 109

  /* velocity sens slider */
110 111 112 113 114
  gimp_prop_scale_entry_new (config, "vel-sensitivity",
                             GTK_TABLE (table), 0, 2,
                             _("Speed:"),
                             0.01, 0.1, 1,
                             FALSE, 0.0, 0.0);
115 116 117

  /*  bottom hbox */
  hbox = gtk_hbox_new (FALSE, 2);
118
  gtk_box_pack_start (GTK_BOX (vbox), hbox, FALSE, FALSE, 0);
119 120 121
  gtk_widget_show (hbox);

  /* Brush type radiobuttons */
122 123
  frame = gimp_prop_enum_radio_frame_new (config, "blob-type",
                                          _("Type"), 0, 0);
124 125 126
  gtk_box_pack_start (GTK_BOX (hbox), frame, TRUE, TRUE, 0);
  gtk_widget_show (frame);

127
  {
128 129 130
    GList           *children;
    GList           *list;
    GimpInkBlobType  blob_type;
131

132 133
    children =
      gtk_container_get_children (GTK_CONTAINER (GTK_BIN (frame)->child));
134

135
    for (list = children, blob_type = GIMP_INK_BLOB_TYPE_ELLIPSE;
136
         list;
137
         list = g_list_next (list), blob_type++)
138 139
      {
        GtkWidget *radio;
140
        GtkWidget *blob;
141

142
        radio = GTK_WIDGET (list->data);
143

144
        gtk_container_remove (GTK_CONTAINER (radio), GTK_BIN (radio)->child);
145

146
        blob = blob_button_new (blob_type);
147 148 149
        gtk_container_add (GTK_CONTAINER (radio), blob);
        gtk_widget_show (blob);
      }
150

151 152
    g_list_free (children);
  }
153 154

  /* Brush shape widget */
155
  frame = gimp_frame_new (_("Shape"));
156 157 158
  gtk_box_pack_start (GTK_BOX (hbox), frame, TRUE, TRUE, 0);
  gtk_widget_show (frame);

159 160 161 162
  brush_vbox = gtk_vbox_new (FALSE, 2);
  gtk_container_set_border_width (GTK_CONTAINER (brush_vbox), 2);
  gtk_container_add (GTK_CONTAINER (frame), brush_vbox);
  gtk_widget_show (brush_vbox);
163 164 165

  frame = gtk_aspect_frame_new (NULL, 0.0, 0.5, 1.0, FALSE);
  gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_IN);
166
  gtk_box_pack_start (GTK_BOX (brush_vbox), frame, TRUE, TRUE, 0);
167
  gtk_widget_show (frame);
168

169 170 171
  brush = brush_widget_new (GIMP_INK_OPTIONS (tool_options));
  gtk_container_add (GTK_CONTAINER (frame), brush);
  gtk_widget_show (brush);
172 173

  return vbox;
174 175 176 177 178 179 180 181 182 183
}


/*  BrushWidget functions  */

typedef struct _BrushWidget BrushWidget;

struct _BrushWidget
{
  GtkWidget      *widget;
184
  gboolean        active;
185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217

  /* EEK */
  GimpInkOptions *ink_options;
};

static void     brush_widget_notify         (GimpInkOptions *options,
                                             GParamSpec     *pspec,
                                             BrushWidget    *brush_widget);
static void     brush_widget_active_rect    (BrushWidget    *brush_widget,
                                             GtkWidget      *widget,
                                             GdkRectangle   *rect);
static void     brush_widget_realize        (GtkWidget      *widget);
static gboolean brush_widget_expose         (GtkWidget      *widget,
                                             GdkEventExpose *event,
                                             BrushWidget    *brush_widget);
static gboolean brush_widget_button_press   (GtkWidget      *widget,
                                             GdkEventButton *event,
                                             BrushWidget    *brush_widget);
static gboolean brush_widget_button_release (GtkWidget      *widget,
                                             GdkEventButton *event,
                                             BrushWidget    *brush_widget);
static gboolean brush_widget_motion_notify  (GtkWidget      *widget,
                                             GdkEventMotion *event,
                                             BrushWidget    *brush_widget);

static void     paint_blob                  (GdkDrawable    *drawable,
                                             GdkGC          *gc,
                                             Blob           *blob);

static GtkWidget *
brush_widget_new (GimpInkOptions *options)
{
  BrushWidget *brush_w;
218 219

  brush_w = g_new (BrushWidget, 1);
220
  brush_w->widget      = gtk_drawing_area_new ();
221
  brush_w->active      = FALSE;
222 223
  brush_w->ink_options = options;

224 225 226 227 228 229 230
  gtk_widget_set_size_request (brush_w->widget, 60, 60);
  gtk_widget_set_events (brush_w->widget,
			 GDK_BUTTON_PRESS_MASK   |
                         GDK_BUTTON_RELEASE_MASK |
			 GDK_POINTER_MOTION_MASK |
                         GDK_EXPOSURE_MASK);

231
  g_signal_connect (options, "notify",
232
                    G_CALLBACK (brush_widget_notify),
233
                    brush_w);
234

235
  g_signal_connect (brush_w->widget, "button_press_event",
236
		    G_CALLBACK (brush_widget_button_press),
237
		    brush_w);
238
  g_signal_connect (brush_w->widget, "button_release_event",
239
		    G_CALLBACK (brush_widget_button_release),
240
		    brush_w);
241
  g_signal_connect (brush_w->widget, "motion_notify_event",
242
		    G_CALLBACK (brush_widget_motion_notify),
243
		    brush_w);
244
  g_signal_connect (brush_w->widget, "expose_event",
245
		    G_CALLBACK (brush_widget_expose),
246
		    brush_w);
247
  g_signal_connect (brush_w->widget, "realize",
248
		    G_CALLBACK (brush_widget_realize),
249
		    brush_w);
250

251 252 253 254
  g_object_weak_ref (G_OBJECT (brush_w->widget),
                     (GWeakNotify) g_free, brush_w);

  return brush_w->widget;
255
}
256

257
static void
258 259 260
brush_widget_notify (GimpInkOptions *options,
                     GParamSpec     *pspec,
                     BrushWidget    *brush_w)
261
{
262 263
  if (! strncmp (pspec->name, "blob", 4))
    gtk_widget_queue_draw (brush_w->widget);
264 265 266
}

static void
267 268 269
brush_widget_active_rect (BrushWidget  *brush_widget,
			  GtkWidget    *widget,
			  GdkRectangle *rect)
270
{
271 272
  gint x,y;
  gint r;
273

274 275 276 277 278 279 280 281 282
  r = MIN (widget->allocation.width, widget->allocation.height) / 2;

  x = (widget->allocation.width / 2 +
       0.85 * r * brush_widget->ink_options->blob_aspect / 10.0 *
       cos (brush_widget->ink_options->blob_angle));

  y = (widget->allocation.height / 2 +
       0.85 * r * brush_widget->ink_options->blob_aspect / 10.0 *
       sin (brush_widget->ink_options->blob_angle));
283

284 285 286 287
  rect->x      = x - 5;
  rect->y      = y - 5;
  rect->width  = 10;
  rect->height = 10;
288 289 290
}

static void
291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335
brush_widget_realize (GtkWidget *widget)
{
  gtk_style_set_background (widget->style, widget->window, GTK_STATE_ACTIVE);
}

static void
brush_widget_draw_brush (BrushWidget *brush_widget,
			 GtkWidget   *widget,
			 gdouble      xc,
			 gdouble      yc,
			 gdouble      radius)
{
  BlobFunc  function = blob_ellipse;
  Blob     *blob;

  switch (brush_widget->ink_options->blob_type)
    {
    case GIMP_INK_BLOB_TYPE_ELLIPSE:
      function = blob_ellipse;
      break;

    case GIMP_INK_BLOB_TYPE_SQUARE:
      function = blob_square;
      break;

    case GIMP_INK_BLOB_TYPE_DIAMOND:
      function = blob_diamond;
      break;
    }

  blob = (* function) (xc, yc,
                       radius * cos (brush_widget->ink_options->blob_angle),
                       radius * sin (brush_widget->ink_options->blob_angle),
                       (- (radius / brush_widget->ink_options->blob_aspect) *
                        sin (brush_widget->ink_options->blob_angle)),
                       ((radius / brush_widget->ink_options->blob_aspect) *
                        cos (brush_widget->ink_options->blob_angle)));
  paint_blob (widget->window, widget->style->fg_gc[widget->state], blob);
  g_free (blob);
}

static gboolean
brush_widget_expose (GtkWidget      *widget,
		     GdkEventExpose *event,
		     BrushWidget    *brush_widget)
336
{
337 338 339 340 341 342 343
  GdkRectangle rect;
  gint         r0;

  r0 = MIN (widget->allocation.width, widget->allocation.height) / 2;

  if (r0 < 2)
    return TRUE;
344

345 346 347 348 349 350 351 352
  brush_widget_draw_brush (brush_widget, widget,
			   widget->allocation.width  / 2,
			   widget->allocation.height / 2,
			   0.9 * r0);

  brush_widget_active_rect (brush_widget, widget, &rect);
  gdk_draw_rectangle (widget->window, widget->style->bg_gc[GTK_STATE_NORMAL],
		      TRUE,	/* filled */
353
		      rect.x, rect.y,
354 355 356 357 358 359
		      rect.width, rect.height);
  gtk_paint_shadow (widget->style, widget->window, widget->state,
                    GTK_SHADOW_OUT,
                    NULL, widget, NULL,
                    rect.x, rect.y,
                    rect.width, rect.height);
360

361 362
  return TRUE;
}
363

364 365 366 367 368 369 370 371 372 373 374 375
static gboolean
brush_widget_button_press (GtkWidget      *widget,
			   GdkEventButton *event,
			   BrushWidget    *brush_widget)
{
  GdkRectangle rect;

  brush_widget_active_rect (brush_widget, widget, &rect);

  if ((event->x >= rect.x) && (event->x-rect.x < rect.width) &&
      (event->y >= rect.y) && (event->y-rect.y < rect.height))
    {
376
      brush_widget->active = TRUE;
377 378 379 380 381 382 383 384 385 386
    }

  return TRUE;
}

static gboolean
brush_widget_button_release (GtkWidget      *widget,
			     GdkEventButton *event,
			     BrushWidget    *brush_widget)
{
387
  brush_widget->active = FALSE;
388 389 390 391 392 393 394 395 396

  return TRUE;
}

static gboolean
brush_widget_motion_notify (GtkWidget      *widget,
			    GdkEventMotion *event,
			    BrushWidget    *brush_widget)
{
397
  if (brush_widget->active)
398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420
    {
      gint x;
      gint y;
      gint rsquare;

      x = event->x - widget->allocation.width  / 2;
      y = event->y - widget->allocation.height / 2;

      rsquare = x*x + y*y;

      if (rsquare != 0)
	{
          gint    r0;
          gdouble angle;
          gdouble aspect;

	  r0 = MIN (widget->allocation.width, widget->allocation.height) / 2;

          angle  = atan2 (y, x);
          aspect = 10.0 * sqrt ((gdouble) rsquare / (r0 * r0)) / 0.85;

          aspect = CLAMP (aspect, 1.0, 10.0);

421
          g_object_set (brush_widget->ink_options,
422 423 424 425 426 427 428 429 430 431 432 433 434 435
                        "blob-angle",  angle,
                        "blob-aspect", aspect,
                        NULL);

	  gtk_widget_queue_draw (widget);
	}
    }

  return TRUE;
}


/*  blob button functions  */

436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470
static gboolean   blob_button_expose (GtkWidget      *widget,
                                      GdkEventExpose *event,
                                      BlobFunc        function);

static GtkWidget *
blob_button_new (GimpInkBlobType blob_type)
{
  GtkWidget *blob;
  BlobFunc   function = blob_ellipse;

  switch (blob_type)
    {
    case GIMP_INK_BLOB_TYPE_ELLIPSE:
      function = blob_ellipse;
      break;

    case GIMP_INK_BLOB_TYPE_SQUARE:
      function = blob_square;
      break;

    case GIMP_INK_BLOB_TYPE_DIAMOND:
      function = blob_diamond;
      break;
    }

  blob = gtk_drawing_area_new ();
  gtk_widget_set_size_request (blob, 21, 21);

  g_signal_connect (blob, "expose_event",
                    G_CALLBACK (blob_button_expose),
                    function);

  return blob;
}

471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501
static gboolean
blob_button_expose (GtkWidget      *widget,
                    GdkEventExpose *event,
                    BlobFunc        function)
{
  Blob *blob;

  blob = (* function) (widget->allocation.width  / 2,
                       widget->allocation.height / 2,
                       8, 0, 0, 8);
  paint_blob (widget->window, widget->style->fg_gc[widget->state], blob);
  g_free (blob);

  return TRUE;
}


/*  Draw a blob onto a drawable with the specified graphics context  */

static void
paint_blob (GdkDrawable *drawable,
	    GdkGC       *gc,
	    Blob        *blob)
{
  gint i;

  for (i = 0; i < blob->height; i++)
    if (blob->data[i].left <= blob->data[i].right)
      gdk_draw_line (drawable, gc,
                     blob->data[i].left,      i + blob->y,
                     blob->data[i].right + 1, i + blob->y);
502
}