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Add stretching to `TextureProgress` 

Now `TextureProgress` has `nine_patch_stretch` flag. With this flag enabled,
it's being rendered as 9-path using `stretch_margin_*` properties as texture margins.

Stretching doesn't support `FILL_CLOCKWISE` and `FILL_COUNTER_CLOCKWISE` fill modes.
This commit is contained in:
Evgeny Zuev 2017-08-21 11:01:06 +07:00
parent c8d655f239
commit 1a2622d344
3 changed files with 245 additions and 67 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

42
doc/base/classes.xml
View File

@ -46114,6 +46114,13 @@
<description>
</description>
</method>
<method name="get_nine_patch_stretch">
<return type="bool">
</return>
<description>
Returns true if textures are stretched as nine-patches or false otherwise.
</description>
</method>
<method name="get_over_texture" qualifiers="const">
<return type="Object">
</return>
@ -46138,6 +46145,15 @@
<description>
</description>
</method>
<method name="get_stretch_margin" qualifiers="const">
<return type="int">
</return>
<argument index="0" name="margin" type="int">
</argument>
<description>
Return nine-patch texture offset for a given margin (MARGIN_LEFT, MARGIN_TOP, MARGIN_RIGHT, MARGIN_BOTTOM).
</description>
</method>
<method name="get_under_texture" qualifiers="const">
<return type="Object">
</return>
@ -46156,6 +46172,13 @@
<description>
</description>
</method>
<method name="set_nine_patch_stretch">
<argument index="0" name="stretch" type="bool">
</argument>
<description>
Set if textures should be stretched as nine-patches.
</description>
</method>
<method name="set_over_texture">
<argument index="0" name="tex" type="Object">
</argument>
@ -46180,6 +46203,15 @@
<description>
</description>
</method>
<method name="set_stretch_margin">
<argument index="0" name="margin" type="int">
</argument>
<argument index="1" name="size" type="int">
</argument>
<description>
Set nine-patch texture offset for a given margin (MARGIN_LEFT, MARGIN_TOP, MARGIN_RIGHT, MARGIN_BOTTOM).
</description>
</method>
<method name="set_under_texture">
<argument index="0" name="tex" type="Object">
</argument>
@ -46202,6 +46234,16 @@
</member>
<member name="texture_under" type="Texture" setter="set_under_texture" getter="get_under_texture" brief="">
</member>
<member name="nine_patch_stretch" type="bool" setter="set_nine_patch_stretch" getter="get_nine_patch_stretch" brief="">
</member>
<member name="stretch_margin_left" type="int" setter="set_stretch_margin" getter="get_stretch_margin" brief="">
</member>
<member name="stretch_margin_top" type="int" setter="set_stretch_margin" getter="get_stretch_margin" brief="">
</member>
<member name="stretch_margin_right" type="int" setter="set_stretch_margin" getter="get_stretch_margin" brief="">
</member>
<member name="stretch_margin_bottom" type="int" setter="set_stretch_margin" getter="get_stretch_margin" brief="">
</member>
</members>
<constants>
<constant name="FILL_LEFT_TO_RIGHT" value="0">

261
scene/gui/texture_progress.cpp
View File

@ -57,9 +57,33 @@ Ref<Texture> TextureProgress::get_over_texture() const {
return over;
}
void TextureProgress::set_stretch_margin(Margin p_margin, int p_size) {
ERR_FAIL_INDEX(p_margin, 4);
stretch_margin[p_margin] = p_size;
update();
minimum_size_changed();
}
int TextureProgress::get_stretch_margin(Margin p_margin) const {
ERR_FAIL_INDEX_V(p_margin, 4, 0);
return stretch_margin[p_margin];
}
void TextureProgress::set_nine_patch_stretch(bool p_stretch) {
nine_patch_stretch = p_stretch;
update();
minimum_size_changed();
}
bool TextureProgress::get_nine_patch_stretch() const {
return nine_patch_stretch;
}
Size2 TextureProgress::get_minimum_size() const {
if (under.is_valid())
if (nine_patch_stretch)
return Size2(stretch_margin[MARGIN_LEFT] + stretch_margin[MARGIN_RIGHT], stretch_margin[MARGIN_TOP] + stretch_margin[MARGIN_BOTTOM]);
else if (under.is_valid())
return under->get_size();
else if (over.is_valid())
return over->get_size();
@ -122,80 +146,165 @@ Point2 TextureProgress::get_relative_center() {
return p;
}
void TextureProgress::draw_nine_patch_stretched(const Ref<Texture> &p_texture, FillMode p_mode, double p_ratio) {
Vector2 texture_size = p_texture->get_size();
Vector2 topleft = Vector2(stretch_margin[MARGIN_LEFT], stretch_margin[MARGIN_TOP]);
Vector2 bottomright = Vector2(stretch_margin[MARGIN_RIGHT], stretch_margin[MARGIN_BOTTOM]);
Rect2 src_rect = Rect2(Point2(), texture_size);
Rect2 dst_rect = Rect2(Point2(), get_size());
if (p_ratio < 1.0) {
// Drawing a partially-filled 9-patch is a little tricky -
// texture is divided by 3 sections toward fill direction,
// then middle section is streching while the other two aren't.
double width_total = 0.0;
double width_texture = 0.0;
double first_section_size = 0.0;
double last_section_size = 0.0;
switch (mode) {
case FILL_LEFT_TO_RIGHT:
case FILL_RIGHT_TO_LEFT: {
width_total = dst_rect.size.x;
width_texture = texture_size.x;
first_section_size = topleft.x;
last_section_size = bottomright.x;
} break;
case FILL_TOP_TO_BOTTOM:
case FILL_BOTTOM_TO_TOP: {
width_total = dst_rect.size.y;
width_texture = texture_size.y;
first_section_size = topleft.y;
last_section_size = bottomright.y;
} break;
}
double width_filled = width_total * p_ratio;
double middle_section_size = MAX(0.0, width_texture - first_section_size - last_section_size);
middle_section_size *= MIN(1.0, (MAX(0.0, width_filled - first_section_size) / MAX(1.0, width_total - first_section_size - last_section_size)));
last_section_size = MAX(0.0, last_section_size - (width_total - width_filled));
width_texture = MIN(width_texture, first_section_size + middle_section_size + last_section_size);
switch (mode) {
case FILL_LEFT_TO_RIGHT: {
src_rect.size.x = width_texture;
dst_rect.size.x = width_filled;
bottomright.x = last_section_size;
} break;
case FILL_RIGHT_TO_LEFT: {
src_rect.position.x += src_rect.size.x - width_texture;
src_rect.size.x = width_texture;
dst_rect.position.x += width_total - width_filled;
dst_rect.size.x = width_filled;
topleft.x = last_section_size;
} break;
case FILL_TOP_TO_BOTTOM: {
src_rect.size.y = width_texture;
dst_rect.size.y = width_filled;
bottomright.y = last_section_size;
} break;
case FILL_BOTTOM_TO_TOP: {
src_rect.position.y += src_rect.size.y - width_texture;
src_rect.size.y = width_texture;
dst_rect.position.y += width_total - width_filled;
dst_rect.size.y = width_filled;
topleft.y = last_section_size;
} break;
}
}
RID ci = get_canvas_item();
VS::get_singleton()->canvas_item_add_nine_patch(ci, dst_rect, src_rect, p_texture->get_rid(), topleft, bottomright);
}
void TextureProgress::_notification(int p_what) {
const float corners[12] = { -0.125, -0.375, -0.625, -0.875, 0.125, 0.375, 0.625, 0.875, 1.125, 1.375, 1.625, 1.875 };
switch (p_what) {
case NOTIFICATION_DRAW: {
if (under.is_valid())
draw_texture(under, Point2());
if (progress.is_valid()) {
Size2 s = progress->get_size();
switch (mode) {
case FILL_LEFT_TO_RIGHT: {
Rect2 region = Rect2(Point2(), Size2(s.x * get_as_ratio(), s.y));
draw_texture_rect_region(progress, region, region);
} break;
case FILL_RIGHT_TO_LEFT: {
Rect2 region = Rect2(Point2(s.x - s.x * get_as_ratio(), 0), Size2(s.x * get_as_ratio(), s.y));
draw_texture_rect_region(progress, region, region);
} break;
case FILL_TOP_TO_BOTTOM: {
Rect2 region = Rect2(Point2(), Size2(s.x, s.y * get_as_ratio()));
draw_texture_rect_region(progress, region, region);
} break;
case FILL_BOTTOM_TO_TOP: {
Rect2 region = Rect2(Point2(0, s.y - s.y * get_as_ratio()), Size2(s.x, s.y * get_as_ratio()));
draw_texture_rect_region(progress, region, region);
} break;
case FILL_CLOCKWISE:
case FILL_COUNTER_CLOCKWISE: {
float val = get_as_ratio() * rad_max_degrees / 360;
if (val == 1) {
Rect2 region = Rect2(Point2(), s);
draw_texture_rect_region(progress, region, region);
} else if (val != 0) {
Array pts;
float direction = mode == FILL_CLOCKWISE ? 1 : -1;
float start = rad_init_angle / 360;
float end = start + direction * val;
pts.append(start);
pts.append(end);
float from = MIN(start, end);
float to = MAX(start, end);
for (int i = 0; i < 12; i++)
if (corners[i] > from && corners[i] < to)
pts.append(corners[i]);
pts.sort();
Vector<Point2> uvs;
Vector<Point2> points;
uvs.push_back(get_relative_center());
points.push_back(Point2(s.x * get_relative_center().x, s.y * get_relative_center().y));
for (int i = 0; i < pts.size(); i++) {
Point2 uv = unit_val_to_uv(pts[i]);
if (uvs.find(uv) >= 0)
continue;
uvs.push_back(uv);
points.push_back(Point2(uv.x * s.x, uv.y * s.y));
}
draw_polygon(points, Vector<Color>(), uvs, progress);
}
if (Engine::get_singleton()->is_editor_hint()) {
Point2 p = progress->get_size();
p.x *= get_relative_center().x;
p.y *= get_relative_center().y;
p = p.floor();
draw_line(p - Point2(8, 0), p + Point2(8, 0), Color(0.9, 0.5, 0.5), 2);
draw_line(p - Point2(0, 8), p + Point2(0, 8), Color(0.9, 0.5, 0.5), 2);
}
} break;
default:
draw_texture_rect_region(progress, Rect2(Point2(), Size2(s.x * get_as_ratio(), s.y)), Rect2(Point2(), Size2(s.x * get_as_ratio(), s.y)));
if (nine_patch_stretch && (mode == FILL_LEFT_TO_RIGHT || mode == FILL_RIGHT_TO_LEFT || mode == FILL_TOP_TO_BOTTOM || mode == FILL_BOTTOM_TO_TOP)) {
if (under.is_valid()) {
draw_nine_patch_stretched(under, FILL_LEFT_TO_RIGHT, 1.0);
}
if (progress.is_valid()) {
draw_nine_patch_stretched(progress, mode, get_as_ratio());
}
if (over.is_valid()) {
draw_nine_patch_stretched(over, FILL_LEFT_TO_RIGHT, 1.0);
}
} else {
if (under.is_valid())
draw_texture(under, Point2());
if (progress.is_valid()) {
Size2 s = progress->get_size();
switch (mode) {
case FILL_LEFT_TO_RIGHT: {
Rect2 region = Rect2(Point2(), Size2(s.x * get_as_ratio(), s.y));
draw_texture_rect_region(progress, region, region);
} break;
case FILL_RIGHT_TO_LEFT: {
Rect2 region = Rect2(Point2(s.x - s.x * get_as_ratio(), 0), Size2(s.x * get_as_ratio(), s.y));
draw_texture_rect_region(progress, region, region);
} break;
case FILL_TOP_TO_BOTTOM: {
Rect2 region = Rect2(Point2(), Size2(s.x, s.y * get_as_ratio()));
draw_texture_rect_region(progress, region, region);
} break;
case FILL_BOTTOM_TO_TOP: {
Rect2 region = Rect2(Point2(0, s.y - s.y * get_as_ratio()), Size2(s.x, s.y * get_as_ratio()));
draw_texture_rect_region(progress, region, region);
} break;
case FILL_CLOCKWISE:
case FILL_COUNTER_CLOCKWISE: {
float val = get_as_ratio() * rad_max_degrees / 360;
if (val == 1) {
Rect2 region = Rect2(Point2(), s);
draw_texture_rect_region(progress, region, region);
} else if (val != 0) {
Array pts;
float direction = mode == FILL_CLOCKWISE ? 1 : -1;
float start = rad_init_angle / 360;
float end = start + direction * val;
pts.append(start);
pts.append(end);
float from = MIN(start, end);
float to = MAX(start, end);
for (int i = 0; i < 12; i++)
if (corners[i] > from && corners[i] < to)
pts.append(corners[i]);
pts.sort();
Vector<Point2> uvs;
Vector<Point2> points;
uvs.push_back(get_relative_center());
points.push_back(Point2(s.x * get_relative_center().x, s.y * get_relative_center().y));
for (int i = 0; i < pts.size(); i++) {
Point2 uv = unit_val_to_uv(pts[i]);
if (uvs.find(uv) >= 0)
continue;
uvs.push_back(uv);
points.push_back(Point2(uv.x * s.x, uv.y * s.y));
}
draw_polygon(points, Vector<Color>(), uvs, progress);
}
if (Engine::get_singleton()->is_editor_hint()) {
Point2 p = progress->get_size();
p.x *= get_relative_center().x;
p.y *= get_relative_center().y;
p = p.floor();
draw_line(p - Point2(8, 0), p + Point2(8, 0), Color(0.9, 0.5, 0.5), 2);
draw_line(p - Point2(0, 8), p + Point2(0, 8), Color(0.9, 0.5, 0.5), 2);
}
} break;
default:
draw_texture_rect_region(progress, Rect2(Point2(), Size2(s.x * get_as_ratio(), s.y)), Rect2(Point2(), Size2(s.x * get_as_ratio(), s.y)));
}
}
if (over.is_valid())
draw_texture(over, Point2());
}
if (over.is_valid())
draw_texture(over, Point2());
} break;
}
@ -265,6 +374,12 @@ void TextureProgress::_bind_methods() {
ClassDB::bind_method(D_METHOD("set_fill_degrees", "mode"), &TextureProgress::set_fill_degrees);
ClassDB::bind_method(D_METHOD("get_fill_degrees"), &TextureProgress::get_fill_degrees);
ClassDB::bind_method(D_METHOD("set_stretch_margin", "margin", "value"), &TextureProgress::set_stretch_margin);
ClassDB::bind_method(D_METHOD("get_stretch_margin", "margin"), &TextureProgress::get_stretch_margin);
ClassDB::bind_method(D_METHOD("set_nine_patch_stretch", "stretch"), &TextureProgress::set_nine_patch_stretch);
ClassDB::bind_method(D_METHOD("get_nine_patch_stretch"), &TextureProgress::get_nine_patch_stretch);
ADD_GROUP("Textures", "texture_");
ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "texture_under", PROPERTY_HINT_RESOURCE_TYPE, "Texture"), "set_under_texture", "get_under_texture");
ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "texture_over", PROPERTY_HINT_RESOURCE_TYPE, "Texture"), "set_over_texture", "get_over_texture");
@ -274,6 +389,12 @@ void TextureProgress::_bind_methods() {
ADD_PROPERTYNZ(PropertyInfo(Variant::REAL, "radial_initial_angle", PROPERTY_HINT_RANGE, "0.0,360.0,0.1,slider"), "set_radial_initial_angle", "get_radial_initial_angle");
ADD_PROPERTYNZ(PropertyInfo(Variant::REAL, "radial_fill_degrees", PROPERTY_HINT_RANGE, "0.0,360.0,0.1,slider"), "set_fill_degrees", "get_fill_degrees");
ADD_PROPERTY(PropertyInfo(Variant::VECTOR2, "radial_center_offset"), "set_radial_center_offset", "get_radial_center_offset");
ADD_GROUP("Stretch", "stretch_");
ADD_PROPERTY(PropertyInfo(Variant::BOOL, "nine_patch_stretch"), "set_nine_patch_stretch", "get_nine_patch_stretch");
ADD_PROPERTYINZ(PropertyInfo(Variant::INT, "stretch_margin_left", PROPERTY_HINT_RANGE, "0,16384,1"), "set_stretch_margin", "get_stretch_margin", MARGIN_LEFT);
ADD_PROPERTYINZ(PropertyInfo(Variant::INT, "stretch_margin_top", PROPERTY_HINT_RANGE, "0,16384,1"), "set_stretch_margin", "get_stretch_margin", MARGIN_TOP);
ADD_PROPERTYINZ(PropertyInfo(Variant::INT, "stretch_margin_right", PROPERTY_HINT_RANGE, "0,16384,1"), "set_stretch_margin", "get_stretch_margin", MARGIN_RIGHT);
ADD_PROPERTYINZ(PropertyInfo(Variant::INT, "stretch_margin_bottom", PROPERTY_HINT_RANGE, "0,16384,1"), "set_stretch_margin", "get_stretch_margin", MARGIN_BOTTOM);
BIND_ENUM_CONSTANT(FILL_LEFT_TO_RIGHT);
BIND_ENUM_CONSTANT(FILL_RIGHT_TO_LEFT);
@ -289,4 +410,10 @@ TextureProgress::TextureProgress() {
rad_center_off = Point2();
rad_max_degrees = 360;
set_mouse_filter(MOUSE_FILTER_PASS);
nine_patch_stretch = false;
stretch_margin[MARGIN_LEFT] = 0;
stretch_margin[MARGIN_RIGHT] = 0;
stretch_margin[MARGIN_BOTTOM] = 0;
stretch_margin[MARGIN_TOP] = 0;
}

9
scene/gui/texture_progress.h
View File

@ -75,6 +75,12 @@ public:
void set_over_texture(const Ref<Texture> &p_texture);
Ref<Texture> get_over_texture() const;
void set_stretch_margin(Margin p_margin, int p_size);
int get_stretch_margin(Margin p_margin) const;
void set_nine_patch_stretch(bool p_stretch);
bool get_nine_patch_stretch() const;
Size2 get_minimum_size() const;
TextureProgress();
@ -84,9 +90,12 @@ private:
float rad_init_angle;
float rad_max_degrees;
Point2 rad_center_off;
bool nine_patch_stretch;
int stretch_margin[4];
Point2 unit_val_to_uv(float val);
Point2 get_relative_center();
void draw_nine_patch_stretched(const Ref<Texture> &p_texture, FillMode p_mode, double p_ratio);
};
VARIANT_ENUM_CAST(TextureProgress::FillMode);