1
2 /*
3 * Ump - Unnamed Math Program
4 * Copyright (c) 2004-2006 by Mattias Hultgren <mattias_hultgren@tele2.se>
5 *
6 * See main.cpp
7 */
8
9 #include "gradient_editor.h"
10 #include "picture2gtk.h"
11 #include "math2.h"
12
13 const int32 GRADIENT_PICTURE_WIDTH = 100;
14 const int32 GRADIENT_PICTURE_HEIGHT = 200;
15
16 int active_color;
17 picture2gtk gradient_picture;
18 Vector<picture_h::colorrgb> working_gradient;
19 GtkWidget *the_parent;
20
21 void gradient_update_color(void);
22
23 void gradient_select_color( const picture2gtk *src, int32 x, int32 y, int32 button);
24
25 void gradient_change_color(GtkButton *button, gpointer user_data);
26 void gradient_add_color(GtkButton *button, gpointer user_data);
27 void gradient_remove_color(GtkButton *button, gpointer user_data);
28 void gradient_move_up(GtkButton *button, gpointer user_data);
29 void gradient_move_down(GtkButton *button, gpointer user_data);
30
gradient_editor(GtkWidget * parent,Vector<picture_h::colorrgb> & gradient)31 void gradient_editor( GtkWidget *parent, Vector<picture_h::colorrgb> &gradient ) throw(error_obj)
32 {
33 GtkWidget *dialog, *box, *box2, *button, *drawarea;
34
35 dialog = gtk_dialog_new_with_buttons( _("Gradient editor"), GTK_WINDOW(parent),
36 GtkDialogFlags(GTK_DIALOG_DESTROY_WITH_PARENT | GTK_DIALOG_MODAL),
37 GTK_STOCK_OK, GTK_RESPONSE_ACCEPT,
38 NULL );
39 the_parent = dialog;
40
41 working_gradient = gradient;
42
43 box = gtk_hbox_new( FALSE, 3 );
44 gtk_container_set_border_width( GTK_CONTAINER(box), 3 );
45 gtk_box_pack_start( GTK_BOX( GTK_DIALOG(dialog)->vbox), box, FALSE, FALSE, 3 );
46
47 active_color = gradient.get_size() -1;
48
49 gradient_picture.set_size( GRADIENT_PICTURE_WIDTH, GRADIENT_PICTURE_HEIGHT );
50
51 gradient_update_color();
52 drawarea = gtk_drawing_area_new();
53 gradient_picture.connect_to_drawing_area( drawarea );
54
55 gradient_picture.mousedown_func = gradient_select_color;
56
57 gtk_box_pack_start( GTK_BOX(box), drawarea, FALSE, FALSE, 0 );
58
59
60 box2 = gtk_vbox_new( TRUE, 0 );
61 gtk_box_pack_start( GTK_BOX(box), box2, FALSE, FALSE, 0 );
62
63
64 {
65 GtkWidget *tmp_hbox;
66
67 button = gtk_button_new();
68 gtk_box_pack_start( GTK_BOX(box2), button, FALSE, FALSE, 0 );
69 tmp_hbox = gtk_hbox_new( FALSE, 0 );
70 gtk_container_add( GTK_CONTAINER(button), tmp_hbox );
71 gtk_box_pack_start( GTK_BOX(tmp_hbox), gtk_image_new_from_stock( GTK_STOCK_SELECT_COLOR, GTK_ICON_SIZE_BUTTON ),
72 FALSE, FALSE, 0 );
73 gtk_box_pack_start( GTK_BOX(tmp_hbox), gtk_label_new( _("Change color") ), FALSE, FALSE, 0 );
74 g_signal_connect( GTK_OBJECT(button), "clicked", G_CALLBACK(gradient_change_color), NULL );
75
76
77 button = gtk_button_new();
78 gtk_box_pack_start( GTK_BOX(box2), button, FALSE, FALSE, 0 );
79 tmp_hbox = gtk_hbox_new( FALSE, 0 );
80 gtk_container_add( GTK_CONTAINER(button), tmp_hbox );
81 gtk_box_pack_start( GTK_BOX(tmp_hbox), gtk_image_new_from_stock( GTK_STOCK_ADD, GTK_ICON_SIZE_BUTTON ),
82 FALSE, FALSE, 0 );
83 gtk_box_pack_start( GTK_BOX(tmp_hbox), gtk_label_new( _("Add color") ), FALSE, FALSE, 0 );
84 g_signal_connect( GTK_OBJECT(button), "clicked", G_CALLBACK(gradient_add_color), NULL );
85
86
87 button = gtk_button_new();
88 gtk_box_pack_start( GTK_BOX(box2), button, FALSE, FALSE, 0 );
89 tmp_hbox = gtk_hbox_new( FALSE, 0 );
90 gtk_container_add( GTK_CONTAINER(button), tmp_hbox );
91 gtk_box_pack_start( GTK_BOX(tmp_hbox), gtk_image_new_from_stock( GTK_STOCK_REMOVE, GTK_ICON_SIZE_BUTTON ),
92 FALSE, FALSE, 0 );
93 gtk_box_pack_start( GTK_BOX(tmp_hbox), gtk_label_new( _("Remove color") ), FALSE, FALSE, 0 );
94 g_signal_connect( GTK_OBJECT(button), "clicked", G_CALLBACK(gradient_remove_color), NULL );
95
96
97 button = gtk_button_new();
98 gtk_box_pack_start( GTK_BOX(box2), button, FALSE, FALSE, 0 );
99 tmp_hbox = gtk_hbox_new( FALSE, 0 );
100 gtk_container_add( GTK_CONTAINER(button), tmp_hbox );
101 gtk_box_pack_start( GTK_BOX(tmp_hbox), gtk_image_new_from_stock( GTK_STOCK_GO_UP, GTK_ICON_SIZE_BUTTON ),
102 FALSE, FALSE, 0 );
103 gtk_box_pack_start( GTK_BOX(tmp_hbox), gtk_label_new( _("Move up") ), FALSE, FALSE, 0 );
104 g_signal_connect( GTK_OBJECT(button), "clicked", G_CALLBACK(gradient_move_up), NULL );
105
106
107 button = gtk_button_new();
108 gtk_box_pack_start( GTK_BOX(box2), button, FALSE, FALSE, 0 );
109 tmp_hbox = gtk_hbox_new( FALSE, 0 );
110 gtk_container_add( GTK_CONTAINER(button), tmp_hbox );
111 gtk_box_pack_start( GTK_BOX(tmp_hbox), gtk_image_new_from_stock( GTK_STOCK_GO_DOWN, GTK_ICON_SIZE_BUTTON ),
112 FALSE, FALSE, 0 );
113 gtk_box_pack_start( GTK_BOX(tmp_hbox), gtk_label_new( _("Move down") ), FALSE, FALSE, 0 );
114 g_signal_connect( GTK_OBJECT(button), "clicked", G_CALLBACK(gradient_move_down), NULL );
115 }
116
117 gtk_widget_show_all(dialog);
118 if( gtk_dialog_run( GTK_DIALOG(dialog) ) == GTK_RESPONSE_ACCEPT )
119 gradient = working_gradient;
120
121 gtk_widget_destroy(dialog);
122 }
123
gradient_update_color(void)124 void gradient_update_color(void)
125 {
126 for( int32 i=0; i<gradient_picture.get_height(); i++ )
127 {
128 picture_h::colorrgb tmp_color;
129 math::color_list_get_color( working_gradient, 0.0, floatx(gradient_picture.get_height()-1),
130 floatx(gradient_picture.get_height()-1-i), &tmp_color );
131 gradient_picture.line( 0, i, gradient_picture.get_width()-1, i, tmp_color );
132 }
133
134 if( active_color >= working_gradient.get_size() )
135 active_color = working_gradient.get_size() -1;
136
137 if( working_gradient.get_size() > 1 )
138 {
139 int32 middle = int32( (1.0- float(active_color) / float(working_gradient.get_size() -1) ) *
140 float(gradient_picture.get_height()) );
141
142 if( active_color == 0 )
143 middle -= 7;
144 if( active_color == (working_gradient.get_size() -1) )
145 middle += 6;
146
147 gradient_picture.box( 0, middle -6, gradient_picture.get_width(), 13, picture_h::color::WHITE );
148 gradient_picture.box( 1, middle -5, gradient_picture.get_width() -2, 11, picture_h::color::BLACK );
149 gradient_picture.box( 2, middle -4, gradient_picture.get_width() -4, 9, picture_h::color::WHITE );
150 }
151
152 gradient_picture.update();
153 }
154
gradient_select_color(const picture2gtk * src,int32 x,int32 y,int32 button)155 void gradient_select_color( const picture2gtk *src, int32 x, int32 y, int32 button)
156 {
157 if( button == 1 ) // left button
158 {
159 if( y < 0 )
160 y = 0;
161 if( y >= gradient_picture.get_height() )
162 y = gradient_picture.get_height() -1;
163
164 active_color = int32( (1.0 - float(y) / float(gradient_picture.get_height() -1) ) *
165 float(working_gradient.get_size() -1) + 0.5f);
166 gradient_update_color();
167 }
168 }
169
gradient_change_color(GtkButton * button,gpointer user_data)170 void gradient_change_color(GtkButton *button, gpointer user_data)
171 {
172 GtkColorSelectionDialog *colordialog;
173 GdkColor color;
174
175 colorrgb_to_gdkcolor( *working_gradient[active_color], color );
176
177 colordialog = (GtkColorSelectionDialog *) gtk_color_selection_dialog_new(NULL);
178
179 gtk_color_selection_set_current_color( GTK_COLOR_SELECTION(colordialog->colorsel), &color );
180
181 gtk_window_set_transient_for( GTK_WINDOW(colordialog), GTK_WINDOW(the_parent) );
182 gtk_window_set_modal( GTK_WINDOW(colordialog), TRUE );
183
184 gtk_widget_show_all( GTK_WIDGET(colordialog) );
185
186 gtk_widget_hide(colordialog->help_button);
187
188 if( gtk_dialog_run( GTK_DIALOG(colordialog) ) == GTK_RESPONSE_OK )
189 {
190 picture_h::colorrgb colorr;
191
192 gtk_color_selection_get_current_color( GTK_COLOR_SELECTION(GTK_COLOR_SELECTION_DIALOG(colordialog)->colorsel), &color );
193 gdkcolor_to_colorrgb( color, colorr );
194 *working_gradient[active_color] = colorr;
195 gradient_update_color();
196 }
197 gtk_widget_destroy( GTK_WIDGET(colordialog) );
198 }
199
gradient_add_color(GtkButton * button,gpointer user_data)200 void gradient_add_color(GtkButton *button, gpointer user_data)
201 {
202 GtkColorSelectionDialog *colordialog;
203 GdkColor color;
204
205 colorrgb_to_gdkcolor( *working_gradient[active_color], color );
206
207 colordialog = (GtkColorSelectionDialog *) gtk_color_selection_dialog_new(NULL);
208
209 gtk_color_selection_set_current_color( GTK_COLOR_SELECTION(colordialog->colorsel), &color );
210
211 gtk_window_set_transient_for( GTK_WINDOW(colordialog), GTK_WINDOW(the_parent) );
212 gtk_window_set_modal( GTK_WINDOW(colordialog), TRUE );
213
214 gtk_widget_show_all( GTK_WIDGET(colordialog) );
215
216 gtk_widget_hide(colordialog->help_button);
217
218 if( gtk_dialog_run( GTK_DIALOG(colordialog) ) == GTK_RESPONSE_OK )
219 {
220 picture_h::colorrgb colorr;
221
222 gtk_color_selection_get_current_color( GTK_COLOR_SELECTION(GTK_COLOR_SELECTION_DIALOG(colordialog)->colorsel), &color );
223 gdkcolor_to_colorrgb( color, colorr );
224 working_gradient.insert( colorr, active_color );
225 gradient_update_color();
226 }
227 gtk_widget_destroy( GTK_WIDGET(colordialog) );
228 }
229
gradient_remove_color(GtkButton * button,gpointer user_data)230 void gradient_remove_color(GtkButton *button, gpointer user_data)
231 {
232 if( working_gradient.get_size() > 1 )
233 {
234 working_gradient.remove( active_color );
235 gradient_update_color();
236 }
237 }
238
gradient_move_up(GtkButton * button,gpointer user_data)239 void gradient_move_up(GtkButton *button, gpointer user_data)
240 {
241 if( active_color != (working_gradient.get_size() -1) )
242 {
243 picture_h::colorrgb color;
244
245 color = *working_gradient[active_color];
246 *working_gradient[active_color] = *working_gradient[active_color +1];
247 *working_gradient[active_color +1] = color;
248 active_color++;
249 gradient_update_color();
250 }
251 }
252
gradient_move_down(GtkButton * button,gpointer user_data)253 void gradient_move_down(GtkButton *button, gpointer user_data)
254 {
255 if( active_color != 0 )
256 {
257 picture_h::colorrgb color;
258
259 color = *working_gradient[active_color];
260 *working_gradient[active_color] = *working_gradient[active_color -1];
261 *working_gradient[active_color -1] = color;
262 active_color--;
263 gradient_update_color();
264 }
265 }
266