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Add 'content_offset' and 'padding' style properties for buttons (#9661)

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* Add padding and content_offset style properties to buttons
This commit is contained in:
Hugues Ross 2020-05-02 07:32:02 -04:00 committed by GitHub
parent 5c96f57782
commit cb9a44ef89
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GPG Key ID: 4AEE18F83AFDEB23
5 changed files with 88 additions and 21 deletions
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6
doc/lua_api.txt
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@ -2697,10 +2697,14 @@ Some types may inherit styles from parent types.
* bgimg - standard background image. Defaults to none.
* bgimg_hovered - background image when hovered. Defaults to bgimg when not provided.
* bgimg_middle - Makes the bgimg textures render in 9-sliced mode and defines the middle rect.
See background9[] documentation for more details
See background9[] documentation for more details. This property also pads the
button's content when set.
* bgimg_pressed - background image when pressed. Defaults to bgimg when not provided.
* border - boolean, draw border. Set to false to hide the bevelled button pane. Default true.
* content_offset - 2d vector, shifts the position of the button's content without resizing it.
* noclip - boolean, set to true to allow the element to exceed formspec bounds.
* padding - rect, adds space between the edges of the button and the content. This value is
relative to bgimg_middle.
* textcolor - color, default white.
* checkbox
* noclip - boolean, set to true to allow the element to exceed formspec bounds.

3
games/minimal/mods/test/formspec.lua
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@ -95,7 +95,7 @@ local style_fs = [[
style[one_btn13;border=false]
item_image_button[1.25,8.35;1,1;default:sword_steel;one_btn13;NoBor]
style[one_btn14;border=false;bgimg=test_bg.png;fgimg=bubble.png]
style[one_btn14;border=false;bgimg=test_bg.png;fgimg=bubble.png;padding=8]
style[one_btn14:hovered;bgimg=test_bg_hovered.png;fgimg=default_apple.png;textcolor=red]
style[one_btn14:pressed;bgimg=test_bg_pressed.png;fgimg=heart.png;textcolor=green]
style[one_btn14:hovered+pressed;textcolor=blue]
@ -105,6 +105,7 @@ local style_fs = [[
item_image_button[1.25,9.6;1,1;default:sword_steel;one_btn15;Bg]
style[one_btn16;border=false;bgimg=test_bg_9slice.png;bgimg_hovered=test_bg_9slice_hovered.png;bgimg_pressed=test_bg_9slice_pressed.png;bgimg_middle=4,6]
style[one_btn16:pressed;content_offset=0,1]
button[2.5,9.6;2,1;one_btn16;9-Slice Bg]

54
src/gui/StyleSpec.h
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@ -44,6 +44,8 @@ public:
FGIMG_HOVERED, // Note: Deprecated property
FGIMG_PRESSED, // Note: Deprecated property
ALPHA,
CONTENT_OFFSET,
PADDING,
NUM_PROPERTIES,
NONE
};
@ -92,6 +94,10 @@ public:
return FGIMG_PRESSED;
} else if (name == "alpha") {
return ALPHA;
} else if (name == "content_offset") {
return CONTENT_OFFSET;
} else if (name == "padding") {
return PADDING;
} else {
return NONE;
}
@ -196,6 +202,29 @@ public:
return rect;
}
irr::core::vector2d<s32> getVector2i(Property prop, irr::core::vector2d<s32> def) const
{
const auto &val = properties[prop];
if (val.empty())
return def;
irr::core::vector2d<s32> vec;
if (!parseVector2i(val, &vec))
return def;
return vec;
}
irr::core::vector2d<s32> getVector2i(Property prop) const
{
const auto &val = properties[prop];
FATAL_ERROR_IF(val.empty(), "Unexpected missing property");
irr::core::vector2d<s32> vec;
parseVector2i(val, &vec);
return vec;
}
video::ITexture *getTexture(Property prop, ISimpleTextureSource *tsrc,
video::ITexture *def) const
{
@ -286,4 +315,29 @@ private:
return true;
}
bool parseVector2i(const std::string &value, irr::core::vector2d<s32> *parsed_vec) const
{
irr::core::vector2d<s32> vec;
std::vector<std::string> v_vector = split(value, ',');
if (v_vector.size() == 1) {
s32 x = stoi(v_vector[0]);
vec.X = x;
vec.Y = x;
} else if (v_vector.size() == 2) {
s32 x = stoi(v_vector[0]);
s32 y = stoi(v_vector[1]);
vec.X = x;
vec.Y = y;
} else {
warningstream << "Invalid vector2d string format: \"" << value
<< "\"" << std::endl;
return false;
}
*parsed_vec = vec;
return true;
}
};

44
src/gui/guiButton.cpp
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@ -592,25 +592,6 @@ void GUIButton::setPressed(bool pressed)
{
ClickTime = porting::getTimeMs();
Pressed = pressed;
GUISkin* skin = dynamic_cast<GUISkin*>(Environment->getSkin());
for(IGUIElement *child : getChildren())
{
core::rect<s32> originalRect = child->getRelativePosition();
if (Pressed) {
child->setRelativePosition(originalRect +
core::dimension2d<s32>(
skin->getSize(irr::gui::EGDS_BUTTON_PRESSED_IMAGE_OFFSET_X),
skin->getSize(irr::gui::EGDS_BUTTON_PRESSED_IMAGE_OFFSET_Y)));
} else {
child->setRelativePosition(originalRect -
core::dimension2d<s32>(
skin->getSize(irr::gui::EGDS_BUTTON_PRESSED_IMAGE_OFFSET_X),
skin->getSize(irr::gui::EGDS_BUTTON_PRESSED_IMAGE_OFFSET_Y)));
}
}
setFromState();
}
}
@ -819,7 +800,32 @@ void GUIButton::setFromStyle(const StyleSpec& style)
} else {
setImage(nullptr);
}
BgMiddle = style.getRect(StyleSpec::BGIMG_MIDDLE, BgMiddle);
// Child padding and offset
Padding = style.getRect(StyleSpec::PADDING, core::rect<s32>());
Padding = core::rect<s32>(
Padding.UpperLeftCorner + BgMiddle.UpperLeftCorner,
Padding.LowerRightCorner + BgMiddle.LowerRightCorner);
GUISkin* skin = dynamic_cast<GUISkin*>(Environment->getSkin());
core::vector2d<s32> defaultPressOffset(
skin->getSize(irr::gui::EGDS_BUTTON_PRESSED_IMAGE_OFFSET_X),
skin->getSize(irr::gui::EGDS_BUTTON_PRESSED_IMAGE_OFFSET_Y));
ContentOffset = style.getVector2i(StyleSpec::CONTENT_OFFSET, isPressed()
? defaultPressOffset
: core::vector2d<s32>(0));
core::rect<s32> childBounds(
Padding.UpperLeftCorner.X + ContentOffset.X,
Padding.UpperLeftCorner.Y + ContentOffset.Y,
AbsoluteRect.getWidth() + Padding.LowerRightCorner.X + ContentOffset.X,
AbsoluteRect.getHeight() + Padding.LowerRightCorner.Y + ContentOffset.Y);
for (IGUIElement *child : getChildren()) {
child->setRelativePosition(childBounds);
}
}
//! Set the styles used for each state

2
src/gui/guiButton.h
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@ -336,5 +336,7 @@ private:
gui::IGUIStaticText *StaticText;
core::rect<s32> BgMiddle;
core::rect<s32> Padding;
core::vector2d<s32> ContentOffset;
// END PATCH
};