68 lines
1.9 KiB
C++
68 lines
1.9 KiB
C++
/*
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* Mr. 4th Dimention - Allen Webster
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*
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* 31.03.2019
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*
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* Text layout representation
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*
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*/
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// TOP
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internal void
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text_layout_init(Application_Links *app, Text_Layout_Container *container){
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block_zero_struct(container);
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container->node_arena = make_arena(app);
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}
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internal Text_Layout*
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text_layout_new__alloc_layout(Text_Layout_Container *container){
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Text_Layout_Node *node = container->free_nodes;
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if (node == 0){
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node = push_array(&container->node_arena, Text_Layout_Node, 1);
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}
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else{
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container->free_nodes = node->next;
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}
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return(&node->layout);
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}
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internal Text_Layout_ID
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text_layout_new(Heap *heap, Text_Layout_Container *container, Buffer_ID buffer_id, Buffer_Point point, Range on_screen_range, f32 height){
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Text_Layout *new_layout_data = text_layout_new__alloc_layout(container);
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new_layout_data->buffer_id = buffer_id;
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new_layout_data->point = point;
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new_layout_data->on_screen_range = on_screen_range;
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new_layout_data->height = height;
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Text_Layout_ID new_id = ++container->id_counter;
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insert_u32_Ptr_table(heap, &container->table, new_id, new_layout_data);
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return(new_id);
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}
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internal b32
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text_layout_get(Text_Layout_Container *container, Text_Layout_ID id, Text_Layout *out){
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b32 result = false;
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void *ptr = 0;
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if (lookup_u32_Ptr_table(&container->table, id, &ptr)){
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block_copy(out, ptr, sizeof(*out));
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result = true;
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}
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return(result);
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}
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internal b32
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text_layout_erase(Text_Layout_Container *container, Text_Layout_ID id){
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b32 result = false;
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void *ptr = 0;
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if (lookup_u32_Ptr_table(&container->table, id, &ptr)){
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erase_u32_Ptr_table(&container->table, id);
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Text_Layout_Node *node = CastFromMember(Text_Layout_Node, layout, ptr);
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node->next = container->free_nodes;
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container->free_nodes = node;
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result = true;
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}
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return(result);
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}
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// BOTTOM
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