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109 lines
2.9 KiB
Lua
109 lines
2.9 KiB
Lua
---@class examples.scroll_bind_grid: druid.widget
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---@field scroll druid.scroll
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---@field grid druid.grid
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---@field text druid.text
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local M = {}
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function M:init()
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self.created_nodes = {}
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self.prefab = self:get_node("prefab")
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gui.set_enabled(self.prefab, false)
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self.scroll = self.druid:new_scroll("view", "content")
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self.grid = self.druid:new_grid("content", "prefab", 1)
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self.scroll:bind_grid(self.grid)
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for index = 1, 20 do
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self:add_element()
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end
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end
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function M:on_remove()
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self:clear()
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end
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function M:add_element()
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local prefab_nodes = gui.clone_tree(self.prefab)
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local root = prefab_nodes[self:get_template() .. "/prefab"]
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local text = prefab_nodes[self:get_template() .. "/text"]
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table.insert(self.created_nodes, root)
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gui.set_text(text, "Grid Item " .. #self.created_nodes)
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gui.set_enabled(root, true)
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self.grid:add(root)
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end
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function M:remove_element()
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local last_node = table.remove(self.created_nodes)
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if last_node == nil then
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return
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end
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gui.delete_node(last_node)
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local grid_index = self.grid:get_index_by_node(last_node)
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self.grid:remove(grid_index)
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end
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function M:clear()
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for _, node in ipairs(self.created_nodes) do
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gui.delete_node(node)
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end
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self.created_nodes = {}
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self.grid:clear()
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end
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---@param properties_panel properties_panel
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function M:properties_control(properties_panel)
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local view_node = self.scroll.view_node
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local is_stencil = gui.get_clipping_mode(view_node) == gui.CLIPPING_MODE_STENCIL
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properties_panel:add_checkbox("ui_clipping", is_stencil, function(value)
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gui.set_clipping_mode(view_node, value and gui.CLIPPING_MODE_STENCIL or gui.CLIPPING_MODE_NONE)
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end)
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properties_panel:add_button("ui_add_element", function()
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if #self.created_nodes >= 100 then
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return
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end
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self:add_element()
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end)
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properties_panel:add_button("ui_remove_element", function()
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self:remove_element()
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end)
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properties_panel:add_button("ui_clear_elements", function()
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self:clear()
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end)
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end
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---@return string
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function M:get_debug_info()
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local info = ""
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local s = self.scroll
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local view_node_size = gui.get(s.view_node, "size.y")
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local scroll_position = -s.position
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local scroll_bottom_position = vmath.vector3(scroll_position.x, scroll_position.y - view_node_size, scroll_position.z)
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info = info .. "View Size Y: " .. gui.get(s.view_node, "size.y") .. "\n"
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info = info .. "Content Size Y: " .. gui.get(s.content_node, "size.y") .. "\n"
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info = info .. "Content position Y: " .. math.ceil(s.position.y) .. "\n"
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info = info .. "Content Range Y: " .. s.available_pos.y .. " - " .. s.available_pos.w .. "\n"
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info = info .. "Grid Items: " .. #self.grid.nodes .. "\n"
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info = info .. "Grid Item Size: " .. self.grid.node_size.x .. " x " .. self.grid.node_size.y .. "\n"
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info = info .. "Top Scroll Pos Grid Index: " .. self.grid:get_index(scroll_position) .. "\n"
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info = info .. "Bottm Scroll Pos Grid Index: " .. self.grid:get_index(scroll_bottom_position) .. "\n"
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return info
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end
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return M
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