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Added heptagon (7-sided) shape

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Also, using floats more, allowing for proper heptagon support, as
well as a non-skewed starting angle for octagons (22.5 degrees).
This commit is contained in:
Bill Kendrick 2022-01-21 00:25:42 -08:00
parent 1050e74336
commit 71c2404838
5 changed files with 81 additions and 54 deletions
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7
docs/CHANGES.txt
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@ -7,7 +7,7 @@ Various contributors (see below, and AUTHORS.txt)
http://www.tuxpaint.org/
2022.January.20 (0.9.28)
2022.January.21 (0.9.28)
* Improvements to "Paint" and "Lines" tools:
------------------------------------------
* Brush spacing may now be altered within Tux Paint.
@ -29,7 +29,10 @@ http://www.tuxpaint.org/
* Improvements to "Shapes" tool:
------------------------------
* Added hexagon (6-sided polygon) shape.
* Added hexagon (6-sided polygon) and heptagon (7-sided) shapes.
* Using floats more, allowing for proper heptagon support, as
well as a non-skewed starting angle for octagons (22.5 degrees).
* Localization Updates:
---------------------

116
src/shapes.h
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@ -23,7 +23,7 @@
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
(See COPYING.txt)
June 14, 2002 - January 20, 2022
June 14, 2002 - January 21, 2022
$Id$
*/
@ -51,10 +51,12 @@ enum
SHAPE_PENTAGON_FILL,
SHAPE_HEXAGON,
SHAPE_HEXAGON_FILL,
SHAPE_RHOMBUS,
SHAPE_RHOMBUS_FILL,
SHAPE_HEPTAGON,
SHAPE_HEPTAGON_FILL,
SHAPE_OCTAGON,
SHAPE_OCTAGON_FILL,
SHAPE_RHOMBUS,
SHAPE_RHOMBUS_FILL,
SHAPE_TRIANGLE_STAR,
SHAPE_TRIANGLE_STAR_FILL,
SHAPE_RHOMBUS_STAR,
@ -82,10 +84,12 @@ const int shape_sides[NUM_SHAPES] = {
5, /* Pentagon */
6, /* Hexagon */
6, /* Hexagon */
4, /* Rhombus */
4, /* Rhombus */
7, /* Heptagon */
7, /* Heptagon */
8, /* Octagon */
8, /* Octagon */
4, /* Rhombus */
4, /* Rhombus */
3, /* 3 points star */
3, /* 3 points star */
4, /* 4 points star */
@ -112,10 +116,12 @@ const int shape_locked[NUM_SHAPES] = {
0, /* Pentagon */
0, /* Hexagon */
0, /* Hexagon */
0, /* Heptagon */
0, /* Heptagon */
1, /* Octagon */ /* FIXME: Consider unlocking? -bjk 2022.01.21 */
1, /* Octagon */ /* FIXME: Consider unlocking? -bjk 2022.01.21 */
0, /* Rhombus */
0, /* Rhombus */
1, /* Octagon */
1, /* Octagon */
0, /* 3 points star */
0, /* 3 points star */
0, /* 4 points star */
@ -140,10 +146,12 @@ const int shape_filled[NUM_SHAPES] = {
1, /* Triangle */
0, /* Pentagon */
1, /* Pentagon */
0, /* Rhombus */
1, /* Rhombus */
0, /* Heptagon */
1, /* Heptagon */
0, /* Octagon */
1, /* Octagon */
0, /* Rhombus */
1, /* Rhombus */
0, /* 3 points star */
1, /* 3 points star */
0, /* 4 points star */
@ -156,31 +164,33 @@ const int shape_filled[NUM_SHAPES] = {
/* Initial angles for shapes: */
const int shape_init_ang[NUM_SHAPES] = {
45, /* Square */
45, /* Square */
45, /* Rectangle */
45, /* Rectangle */
0, /* Circle */
0, /* Circle */
0, /* Ellipse */
0, /* Ellipse */
210, /* Triangle */
210, /* Triangle */
162, /* Pentagon */
162, /* Pentagon */
150, /* Hexagon */
150, /* Hexagon */
0, /* Rhombus */
0, /* Rhombus */
22, /* Octagon */
22, /* Octagon */
210, /* 3 points star */
210, /* 3 points star */
0, /* 4 points star */
0, /* 4 points star */
162, /* 5 points star */
162 /* 5 points star */
const float shape_init_ang[NUM_SHAPES] = {
45.0, /* Square */
45.0, /* Square */
45.0, /* Rectangle */
45.0, /* Rectangle */
0.0, /* Circle */
0.0, /* Circle */
0.0, /* Ellipse */
0.0, /* Ellipse */
210.0, /* Triangle ((360/3)+90) */
210.0, /* Triangle ((360/3)+90) */
162.0, /* Pentagon ((360/5)+90) */
162.0, /* Pentagon ((360/5)+90) */
150.0, /* Hexagon ((360/6)+90) */
150.0, /* Hexagon ((360/6)+90) */
141.42857143, /* Heptagon ((360/7)+90) */
141.42857143, /* Heptagon ((360/7)+90) */
22.5, /* Octagon ((360/8)/2 = 22.5) */
22.5, /* Octagon ((360/8)/2 = 22.5) */
0.0, /* Rhombus */
0.0, /* Rhombus */
210.0, /* 3 points star ((360/3)+90) */
210.0, /* 3 points star ((360/3)+90) */
0.0, /* 4 points star */
0.0, /* 4 points star */
162.0, /* 5 points star ((360/5)+90) */
162.0 /* 5 points star ((360/5)+90) */
};
@ -201,10 +211,12 @@ const int shape_no_rotate[NUM_SHAPES] = {
0, /* Pentagon */
0, /* Hexagon */
0, /* Hexagon */
0, /* Rhombus */
0, /* Rhombus */
0, /* Heptagon */
0, /* Heptagon */
0, /* Octagon */
0, /* Octagon */
0, /* Rhombus */
0, /* Rhombus */
0, /* 3 points star */
0, /* 3 points star */
0, /* 4 points star */
@ -230,10 +242,12 @@ const int shape_valley[NUM_SHAPES] = {
100, /* Pentagon */
100, /* Hexagon */
100, /* Hexagon */
100, /* Rhombus */
100, /* Rhombus */
100, /* Heptagon */
100, /* Heptagon */
100, /* Octagon */
100, /* Octagon */
100, /* Rhombus */
100, /* Rhombus */
20, /* 3 points star */
20, /* 3 points star */
30, /* 4 points star */
@ -274,14 +288,18 @@ const char *const shape_names[NUM_SHAPES] = {
gettext_noop("Hexagon"),
gettext_noop("Hexagon"),
// Rhombus shape tool (4 sides, not at right angles)
gettext_noop("Rhombus"),
gettext_noop("Rhombus"),
// Heptagon (aka septagon) shape tool (7 sides)
gettext_noop("Heptagon"),
gettext_noop("Heptagon"),
// Octagon shape tool (8 sides)
gettext_noop("Octagon"),
gettext_noop("Octagon"),
// Rhombus shape tool (4 sides, not at right angles)
gettext_noop("Rhombus"),
gettext_noop("Rhombus"),
// Triangle star (3 points star)
gettext_noop("Star"),
@ -333,14 +351,18 @@ const char *const shape_tips[NUM_SHAPES] = {
gettext_noop("A hexagon has six sides."),
gettext_noop("A hexagon has six sides."),
// Description of a rhombus
gettext_noop("A rhombus has four equal sides, and opposite sides are parallel."),
gettext_noop("A rhombus has four equal sides, and opposite sides are parallel."),
// Description of a heptagon
gettext_noop("A heptagon has seven sides."),
gettext_noop("A heptagon has seven sides."),
// Description of an octagon
gettext_noop("An octagon has eight equal sides."),
gettext_noop("An octagon has eight equal sides."),
// Description of a rhombus
gettext_noop("A rhombus has four equal sides, and opposite sides are parallel."),
gettext_noop("A rhombus has four equal sides, and opposite sides are parallel."),
gettext_noop("A star with 3 points."),
gettext_noop("A star with 3 points."),
gettext_noop("A star with 4 points."),
@ -367,10 +389,12 @@ const char *const shape_img_fnames[NUM_SHAPES] = {
DATA_PREFIX "images/shapes/pentagon_f.png",
DATA_PREFIX "images/shapes/hexagon.png",
DATA_PREFIX "images/shapes/hexagon_f.png",
DATA_PREFIX "images/shapes/diamond.png",
DATA_PREFIX "images/shapes/diamond_f.png",
DATA_PREFIX "images/shapes/heptagon.png",
DATA_PREFIX "images/shapes/heptagon_f.png",
DATA_PREFIX "images/shapes/octagon.png",
DATA_PREFIX "images/shapes/octagon_f.png",
DATA_PREFIX "images/shapes/diamond.png",
DATA_PREFIX "images/shapes/diamond_f.png",
DATA_PREFIX "images/shapes/star3p.png",
DATA_PREFIX "images/shapes/star3p_f.png",
DATA_PREFIX "images/shapes/star4p.png",

12
src/tuxpaint.c
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@ -22,7 +22,7 @@
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
(See COPYING.txt)
June 14, 2002 - January 19, 2022
June 14, 2002 - January 21, 2022
*/
#include "platform.h"
@ -13904,8 +13904,8 @@ static void free_surface_array(SDL_Surface * surface_array[], int count)
/* Draw a shape! */
static void do_shape(int sx, int sy, int nx, int ny, int rotn, int use_brush)
{
int side, angle_skip, init_ang, rx, ry, rmax, x1, y1, x2, y2, xp, yp, xv, yv, old_brush, step;
float a1, a2, rotn_rad;
int side, rx, ry, rmax, x1, y1, x2, y2, xp, yp, xv, yv, old_brush, step;
float a1, a2, rotn_rad, init_ang, angle_skip;
int xx, yy, offx, offy, max_x, max_y;
@ -13958,7 +13958,7 @@ static void do_shape(int sx, int sy, int nx, int ny, int rotn, int use_brush)
/* Draw the shape: */
angle_skip = 360 / shape_sides[cur_shape];
angle_skip = 360.0 / (float) shape_sides[cur_shape];
init_ang = shape_init_ang[cur_shape];
@ -13977,8 +13977,8 @@ static void do_shape(int sx, int sy, int nx, int ny, int rotn, int use_brush)
max_y = 0;
for (side = 0; side < shape_sides[cur_shape]; side++)
{
a1 = (angle_skip * side + init_ang) * M_PI / 180;
a2 = (angle_skip * (side + 1) + init_ang) * M_PI / 180;
a1 = (angle_skip * side + init_ang) * M_PI / 180.0;
a2 = (angle_skip * (side + 1) + init_ang) * M_PI / 180.0;
x1 = (int)(cos(a1) * rx);
y1 = (int)(-sin(a1) * ry);