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WIP: a widget that forces its child widget to a fixed size
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,148 @@ | ||
| /* | ||
| Copyright (C) 2016 Jyrki Vesterinen <sandgtx@gmail.com> | ||
| Part of the Battle for Wesnoth Project http://www.wesnoth.org/ | ||
| This program is free software; you can redistribute it and/or modify | ||
| it under the terms of the GNU General Public License as published by | ||
| the Free Software Foundation; either version 2 of the License, or | ||
| (at your option) any later version. | ||
| This program is distributed in the hope that it will be useful, | ||
| but WITHOUT ANY WARRANTY. | ||
| See the COPYING file for more details. | ||
| */ | ||
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| #define GETTEXT_DOMAIN "wesnoth-lib" | ||
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| #include "size_fixater.hpp" | ||
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| #include <gettext.hpp> | ||
| #include <gui/core/register_widget.hpp> | ||
| #include <gui/widgets/helper.hpp> | ||
| #include <gui/widgets/settings.hpp> | ||
| #include <wml_exception.hpp> | ||
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| namespace gui2 | ||
| { | ||
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| REGISTER_WIDGET(size_fixater) | ||
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| void tsize_fixater::layout_children() | ||
| { | ||
| assert(generator_ != nullptr); | ||
| assert(generator_->get_item_count() == 1); | ||
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| generator_->item(0).layout_children(); | ||
| } | ||
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| void tsize_fixater::finalize(tbuilder_grid_const_ptr widget_builder) | ||
| { | ||
| assert(generator_ != nullptr); | ||
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| generator_->create_item(-1, widget_builder, string_map(), nullptr); | ||
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| static const std::string id = "_content_grid"; | ||
| grid().set_id(id); | ||
| twidget* old_grid = grid().swap_child(id, generator_, true); | ||
| delete old_grid; | ||
| } | ||
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| tsize_fixater_definition::tsize_fixater_definition(const config& cfg) : | ||
| tcontrol_definition(cfg) | ||
| { | ||
| DBG_GUI_P << "Parsing fixed size widget " << id << '\n'; | ||
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| load_resolutions<tresolution>(cfg); | ||
| } | ||
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| /*WIKI | ||
| * @page = GUIWidgetDefinitionWML | ||
| * @order = 1_size_fixater | ||
| * | ||
| * == Size fixater == | ||
| * | ||
| * A size fixater contains one child widget and forces it to have the specified size. | ||
| * This can be used, for example, when there are two list boxes in different rows of | ||
| * the same grid and it's desired that only one list box changes size when its | ||
| * contents change. | ||
| * | ||
| * A size fixater has no states. | ||
| * @begin{parent}{name="gui/"} | ||
| * @begin{tag}{name="size_fixater_definition"}{min=0}{max=-1}{super="generic/widget_definition"} | ||
| * @end{tag}{name="size_fixater_definition"} | ||
| * @end{tag}{name="gui/"} | ||
| */ | ||
| tsize_fixater_definition::tresolution::tresolution(const config& cfg) : | ||
| tresolution_definition_(cfg), grid(nullptr) | ||
| { | ||
| const config& child = cfg.child("grid"); | ||
| VALIDATE(child, _("No grid defined.")); | ||
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| grid = std::make_shared<tbuilder_grid>(child); | ||
| } | ||
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| /*WIKI | ||
| * @page = GUIWidgetInstanceWML | ||
| * @order = 2_size_fixater | ||
| * @begin{parent}{name="gui/window/resolution/grid/row/column/"} | ||
| * @begin{tag}{name="size_fixater"}{min=0}{max=-1}{super="generic/widget_instance"} | ||
| * == Size fixater == | ||
| * | ||
| * A size fixater contains one child widget and forces it to have the specified size. | ||
| * This can be used, for example, when there are two list boxes in different rows of | ||
| * the same grid and it's desired that only one list box changes size when its | ||
| * contents change. | ||
| * | ||
| * @begin{table}{config} | ||
| * widget & section & mandatory & The widget. $ | ||
| * width & f_unsigned & mandatory & The width of the widget. $ | ||
| * height & f_unsigned & mandatory & The height of the widget. $ | ||
| * @end{table} | ||
| * | ||
| * The variables available are the same as for window resolution, see | ||
| * [[GuiToolkitWML#Resolution_2]] for the list of items. | ||
| * @end{tag}{name="size_fixater"} | ||
| * @end{parent}{name="gui/window/resolution/grid/row/column/"} | ||
| */ | ||
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| namespace implementation | ||
| { | ||
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| tbuilder_size_fixater::tbuilder_size_fixater(const config& cfg) : | ||
| tbuilder_control(cfg), width_(cfg["width"]), height_(cfg["height"]), content_(nullptr) | ||
| { | ||
| VALIDATE(cfg.has_child("widget"), _("No widget defined.")); | ||
| content_ = std::make_shared<tbuilder_grid>(cfg.child("widget")); | ||
| } | ||
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| twidget* tbuilder_size_fixater::build() const | ||
| { | ||
| tsize_fixater* widget = new tsize_fixater(); | ||
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| init_control(widget); | ||
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| DBG_GUI_G << "Window builder: placed fixed size widget '" << id << | ||
| "' with definition '" << definition << "'.\n"; | ||
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| auto conf = std::static_pointer_cast<const tsize_fixater_definition::tresolution>(widget->config()); | ||
| assert(conf != nullptr); | ||
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| widget->init_grid(conf->grid); | ||
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| game_logic::map_formula_callable size = get_screen_size_variables(); | ||
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| const unsigned width = width_(size); | ||
| const unsigned height = height_(size); | ||
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| VALIDATE(width > 0 && height > 0, _("Invalid size.")); | ||
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| widget->set_size(tpoint(width, height)); | ||
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| widget->finalize(content_); | ||
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| return widget; | ||
| } | ||
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| } | ||
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| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,136 @@ | ||
| /* | ||
| Copyright (C) 2016 Jyrki Vesterinen <sandgtx@gmail.com> | ||
| Part of the Battle for Wesnoth Project http://www.wesnoth.org/ | ||
| This program is free software; you can redistribute it and/or modify | ||
| it under the terms of the GNU General Public License as published by | ||
| the Free Software Foundation; either version 2 of the License, or | ||
| (at your option) any later version. | ||
| This program is distributed in the hope that it will be useful, | ||
| but WITHOUT ANY WARRANTY. | ||
| See the COPYING file for more details. | ||
| */ | ||
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| #ifndef GUI_WIDGETS_SIZE_FIXATER_HPP_INCLUDED | ||
| #define GUI_WIDGETS_SIZE_FIXATER_HPP_INCLUDED | ||
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| #include <gui/widgets/container.hpp> | ||
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| #include <gui/auxiliary/formula.hpp> | ||
| #include <gui/core/widget_definition.hpp> | ||
| #include <gui/core/window_builder.hpp> | ||
| #include <gui/widgets/generator.hpp> | ||
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| namespace gui2 | ||
| { | ||
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| namespace implementation | ||
| { | ||
| struct tbuilder_size_fixater; | ||
| } | ||
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| /* A fixed-size widget that wraps an arbitrary widget and forces it to the given size. */ | ||
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| class tsize_fixater : public tcontainer_ | ||
| { | ||
| friend struct implementation::tbuilder_size_fixater; | ||
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| public: | ||
| tsize_fixater() : | ||
| tcontainer_(1), | ||
| generator_( | ||
| tgenerator_::build(false, false, tgenerator_::independent, false)) | ||
| {} | ||
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| /** See @ref tcontrol::get_active. */ | ||
| bool get_active() const override | ||
| { | ||
| return true; | ||
| } | ||
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| /** See @ref tcontrol::get_state. */ | ||
| unsigned get_state() const override | ||
| { | ||
| return 0; | ||
| } | ||
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| /** See @ref twidget::layout_children. */ | ||
| void layout_children() override; | ||
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| void set_size(const tpoint& size) | ||
| { | ||
| size_ = size; | ||
| } | ||
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| protected: | ||
| tpoint calculate_best_size() const override | ||
| { | ||
| return size_; | ||
| } | ||
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| private: | ||
| tpoint size_; | ||
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| /** | ||
| * Contains a pointer to the generator. | ||
| * | ||
| * The pointer is not owned by this class, it's stored in the content_grid_ | ||
| * of the tcontainer_ base class and freed when its grid is freed. | ||
| */ | ||
| tgenerator_* generator_; | ||
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| /** | ||
| * Finishes the building initialization of the widget. | ||
| * | ||
| * @param widget_builder The builder to build the contents of the | ||
| * widget. | ||
| */ | ||
| void finalize(tbuilder_grid_const_ptr widget_builder); | ||
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| /** See @ref tcontrol::get_control_type. */ | ||
| const std::string& get_control_type() const override | ||
| { | ||
| static const std::string control_type = "size_fixater"; | ||
| return control_type; | ||
| } | ||
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| /** See @ref tcontainer_::set_self_active. */ | ||
| void set_self_active(const bool) override | ||
| { | ||
| // DO NOTHING | ||
| } | ||
| }; | ||
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| struct tsize_fixater_definition : public tcontrol_definition | ||
| { | ||
| explicit tsize_fixater_definition(const config& cfg); | ||
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| struct tresolution : public tresolution_definition_ | ||
| { | ||
| explicit tresolution(const config& cfg); | ||
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| tbuilder_grid_ptr grid; | ||
| }; | ||
| }; | ||
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| namespace implementation | ||
| { | ||
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| struct tbuilder_size_fixater : public tbuilder_control | ||
| { | ||
| explicit tbuilder_size_fixater(const config& cfg); | ||
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| using tbuilder_control::build; | ||
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| twidget* build() const; | ||
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| private: | ||
| tbuilder_grid_const_ptr content_; | ||
| tformula<unsigned> width_; | ||
| tformula<unsigned> height_; | ||
| }; | ||
| } | ||
| } | ||
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| #endif |
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