Implement slider GUI component

CMakeLists.txt

@@ -153,6 +153,7 @@ if(BUILD_CLIENT)
 		src/game/gui/layout.cpp
 		src/game/gui/line_edit.cpp
 		src/game/gui/message_box.cpp
+		src/game/gui/slider.cpp
 		src/game/gui/style_change_listener.cpp
 		src/game/gui/style.cpp
 		src/game/gui/text_edit.cpp

mk/make/Makefile

@@ -141,6 +141,7 @@ ifeq ($(BUILD_CLIENT),1)
 		src/game/gui/layout.cpp \
 		src/game/gui/line_edit.cpp \
 		src/game/gui/message_box.cpp \
+		src/game/gui/slider.cpp \
 		src/game/gui/style_change_listener.cpp \
 		src/game/gui/style.cpp \
 		src/game/gui/text_edit.cpp \

src/game/gui/container.cpp

@@ -24,19 +24,20 @@ SOFTWARE.
 
 #include "game/gui/container.hpp"
 
+#include "common/xml/parser.hpp"
+#include "common/xml/xml_node.hpp"
+#include "common/xml/reader.hpp"
 #include "game/engine/engine.hpp"
-#include "game/gui/layout.hpp"
 #include "game/gui/box.hpp"
 #include "game/gui/button.hpp"
 #include "game/gui/chat.hpp"
 #include "game/gui/combo_box.hpp"
-#include "game/gui/label.hpp"
-#include "game/gui/text_edit.hpp"
 #include "game/gui/image.hpp"
 #include "game/gui/item_gallery.hpp"
-#include "common/xml/parser.hpp"
+#include "game/gui/label.hpp"
-#include "common/xml/xml_node.hpp"
+#include "game/gui/layout.hpp"
-#include "common/xml/reader.hpp"
+#include "game/gui/text_edit.hpp"
+#include "game/gui/slider.hpp"
 
 using namespace polygun::gui;
 
@@ -181,6 +182,8 @@ void Container::load_container(xml::XMLNode* node, engine::Engine* engine) {
 			c = new TextEdit(engine, n);
 		else if(n->get_name()=="chat")
 			c = new Chat(engine, n);
+		else if(n->get_name()=="slider")
+			c = new Slider(engine, n);
 
 		if(c) {
 			if(!parent_set)

src/game/gui/slider.cpp

@@ -0,0 +1,121 @@
+/*
+PolyGun
+
+Copyright (c) 2024 mrkubax10 <mrkubax10@onet.pl>
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+*/
+
+#include "game/gui/slider.hpp"
+
+#include "common/xml/reader.hpp"
+#include "game/engine/engine.hpp"
+#include "game/gui/container.hpp"
+#include "game/gui/style.hpp"
+#include "game/renderer/gui_renderer.hpp"
+#include "game/renderer/texture.hpp"
+#include "game/window/window.hpp"
+
+using namespace polygun::gui;
+
+Slider::Slider(engine::Engine* engine, Constraint* x, Constraint* y, Constraint* width, Constraint* height, const std::string& id, const SliderProp& prop) :
+	Component(x, y, width, height, id),
+	m_engine(engine),
+	m_properties(prop),
+	m_value(prop.m_min),
+	m_pressed(false),
+	m_texture_value(engine->get_master_renderer()->create_texture())
+{}
+
+Slider::Slider(engine::Engine* engine, xml::XMLNode* node) :
+	Component(node),
+	m_engine(engine),
+	m_properties(),
+	m_value(0),
+	m_pressed(false),
+	m_texture_value(engine->get_master_renderer()->create_texture())
+{
+	xml::XMLReader reader(node);
+	if(!reader.get_attribute("min", m_properties.m_min))
+		m_properties.m_min = 0;
+	if(!reader.get_attribute("max", m_properties.m_max))
+		m_properties.m_max = 100;
+	m_value = m_properties.m_min;
+}
+
+Slider::~Slider() {
+	delete m_texture_value;
+}
+
+void Slider::render(renderer::GUIRenderer* renderer) {
+	const float width = std::min(m_parent->get_right(), get_right())-get_x();
+	const float height = std::min(m_parent->get_bottom(), get_bottom())-get_y();
+	const float bar_height = height*0.3f;
+	const float bar_y = get_y()+(height-bar_height)/2;
+	const float picker_float_value = (static_cast<float>(m_value)-m_properties.m_min)/(m_properties.m_max-m_properties.m_min);
+	const float picker_width = get_height()/2;
+	const float picker_x = get_x()+picker_float_value*get_width()-picker_width/2;
+	const unsigned extrusion = Style::get().m_extrusion_size;
+
+	renderer->fill_rect(math::Vector2f{get_x(), bar_y}, math::Vector2f{width-extrusion, bar_height-extrusion}, subtract_from_color(Style::get().m_lower_background_color, math::RGBAColor{30, 30, 30, 0}));
+	renderer->fill_rect(math::Vector2f{get_x()+extrusion, bar_y+extrusion}, math::Vector2f{width-extrusion, bar_height-extrusion}, add_to_color(Style::get().m_lower_background_color, math::RGBAColor{100, 100, 100, 0}));
+	renderer->fill_rect(math::Vector2f{get_x()+extrusion, bar_y+extrusion}, math::Vector2f{width-extrusion*2, bar_height-extrusion*2}, Style::get().m_lower_background_color);
+
+	renderer->fill_rect(math::Vector2f{picker_x, get_y()}, math::Vector2f{picker_width-extrusion, get_height()-extrusion}, add_to_color(Style::get().m_background_color, math::RGBAColor{100, 100, 100, 0}));
+	renderer->fill_rect(math::Vector2f{picker_x+extrusion, get_y()+extrusion}, math::Vector2f{picker_width-extrusion, get_height()-extrusion}, subtract_from_color(Style::get().m_background_color, math::RGBAColor{30, 30, 30, 0}));
+	renderer->fill_rect(math::Vector2f{picker_x+extrusion, get_y()+extrusion}, math::Vector2f{picker_width-extrusion*2, get_height()-extrusion*2}, Style::get().m_background_color);
+
+	if(m_pressed)
+		renderer->render_texture(math::Vector2f{picker_x+picker_width/2-m_texture_value->get_width()/2, get_y()-m_texture_value->get_height()}, m_texture_value);
+}
+
+bool Slider::update(const window::Event& event) {
+	const float width = std::min(m_parent->get_right(), get_right())-get_x();
+	const float height = std::min(m_parent->get_bottom(), get_bottom())-get_y();
+	switch(event.m_type) {
+	case window::EventType::EVENT_TYPE_MOUSE_BUTTON_UP:
+		m_pressed = false;
+		break;
+	case window::EventType::EVENT_TYPE_MOUSE_BUTTON_DOWN:
+		if(m_engine->get_window()->is_mouse_inside_area(math::Vector2f{get_x(), get_y()}, math::Vector2f{width, height}) &&
+			event.m_data.m_mouse_event.m_button==window::MouseButton::MOUSE_BUTTON_LEFT && !m_inactive) {
+			m_engine->get_gui_master().request_highlight(this);
+			m_pressed = true;
+			calculate_value();
+			return true;
+		}
+		break;
+	case window::EventType::EVENT_TYPE_MOUSE_MOVE:
+		if(m_pressed) {
+			if(m_engine->get_window()->get_mouse_x()<get_x() || m_engine->get_window()->get_mouse_x()>get_x()+width)
+				return true;
+			calculate_value();
+			return true;
+		}
+	default:
+		break;
+	}
+	return false;
+}
+
+void Slider::calculate_value() {
+	m_value = m_properties.m_min+(m_engine->get_window()->get_mouse_x()-get_x())/get_width()*(m_properties.m_max-m_properties.m_min);
+	std::unique_ptr<renderer::Surface> surf = Style::get().m_font.render_text(std::to_string(m_value), Style::get().m_text_color);
+	m_texture_value->load_from_surface(*surf);
+}

src/game/gui/slider.hpp

@@ -0,0 +1,68 @@
+/*
+PolyGun
+
+Copyright (c) 2024 mrkubax10 <mrkubax10@onet.pl>
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+*/
+
+#ifndef POLYGUN_GUI_SLIDER_HPP
+#define POLYGUN_GUI_SLIDER_HPP
+
+#include "game/gui/component.hpp"
+
+namespace polygun::engine {
+	class Engine;
+}
+
+namespace polygun::renderer {
+	class Texture;
+}
+
+namespace polygun::gui {
+	struct SliderProp {
+		int m_min;
+		int m_max;
+	};
+
+	class Slider final : public Component {
+	public:
+		Slider(engine::Engine* engine, Constraint* x, Constraint* y, Constraint* width, Constraint* height, const std::string& id, const SliderProp& prop);
+		Slider(engine::Engine* engine, xml::XMLNode* node);
+		virtual ~Slider() override;
+
+		void set_value(int value) { m_value = value; }
+		int get_value() const { return m_value; }
+
+		virtual void render(renderer::GUIRenderer* renderer) override;
+		virtual bool update(const window::Event& event) override;
+
+	private:
+		engine::Engine* m_engine;
+		SliderProp m_properties;
+		int m_value;
+		bool m_pressed;
+		renderer::Texture* m_texture_value;
+
+	private:
+		void calculate_value();
+	};
+}
+
+#endif // POLYGUN_GUI_SLIDER_HPP