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d8c2198529
* tryAddWidget was redundant to addWidget, with Rect fixes and log it's not needed * With changes in BoundingBox simplified axis use in BoxLayout * Add widget moves elements to it's place, resize is not thought through and for now is removed
105 lines
3.3 KiB
C++
105 lines
3.3 KiB
C++
/*
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* BoxLayout.hpp
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*
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* Created on: 16 maj 2019
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* Author: robert
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*/
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#ifndef GUI_WIDGETS_BOXLAYOUT_HPP_
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#define GUI_WIDGETS_BOXLAYOUT_HPP_
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#include <cstdint>
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#include "Layout.hpp"
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#include "Rect.hpp"
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namespace gui {
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class BoxLayout : public Rect
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{
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protected:
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struct BoxElement
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{
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BoxElement(Item *item) : item{item}, noUpdate{false} {};
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Item *item;
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bool noUpdate;
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};
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template <Axis axis> uint16_t &size(Item *it)
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{
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return it->widgetArea.size(axis);
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};
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template <Axis axis> uint32_t sizeUsed(Item *it)
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{
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uint32_t sum = 0;
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std::for_each(it->children.begin(), it->children.end(), [&](auto &el) { sum += el->widgetArea.size(axis); });
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return sum;
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};
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template <Axis axis> uint32_t sizeLeft(Item *it)
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{
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return size<axis>(it) - sizeUsed<axis>(it);
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};
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template <Axis axis> uint32_t inAxisMax(Item *it)
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{
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return (axis == Axis::Y) ? (it->getMaxHeight()) : (it->getMaxWidth());
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};
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template <Axis axis> void resizeItems();
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virtual void resizeItems();
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bool reverse_order = false;
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/// get next navigation item including `from` item, ecludes not visible items and not acvite items
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std::list<Item *>::iterator nextNavigationItem(std::list<Item *>::iterator from);
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public:
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BoxLayout();
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BoxLayout(Item *parent, const uint32_t &x, const uint32_t &y, const uint32_t &w, const uint32_t &h);
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virtual bool onFocus(bool state) override;
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virtual ~BoxLayout() = default;
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// virtual methods from Item
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void setPosition(const short &x, const short &y) override;
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void setSize(const short &w, const short &h) override;
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bool addWidget(gui::Item *item) override;
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bool removeWidget(Item *item) override;
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std::list<DrawCommand *> buildDrawList() override;
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/// add item if it will fit in box, return true on success
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/// axis sets direction to define space left in container
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template <Axis axis> bool addWidget(Item *item);
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/// set navigation from last to fist element in box
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void setNavigation();
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void setVisible(bool value) override;
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/// set visible but from previous scope... (page, element etc)
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void setVisible(bool value, bool previous);
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void setReverseOrder(bool reverse_order)
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{
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this->reverse_order = reverse_order;
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resizeItems();
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}
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/// callback for situaton when we reached top/bottom/left/right of box
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/// if we want to do sth special (i.e. request new items)
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std::function<bool(const InputEvent &inputEvent)> borderCallback = nullptr;
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};
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class HBox : public BoxLayout {
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public:
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void resizeItems() override;
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HBox();
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HBox(Item *parent, const uint32_t &x, const uint32_t &y, const uint32_t &w, const uint32_t &h);
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virtual ~HBox() = default;
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virtual bool addWidget(Item *item) override;
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};
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class VBox : public BoxLayout {
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public:
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void resizeItems() override;
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VBox();
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VBox( Item* parent, const uint32_t& x, const uint32_t& y, const uint32_t& w, const uint32_t& h);
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virtual ~VBox() = default;
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virtual bool addWidget(Item *item) override;
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};
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} /* namespace gui */
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#endif /* GUI_WIDGETS_BOXLAYOUT_HPP_ */
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