System info & network

code/gui/layout.cpp

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+#include "layout.h"
+#include "gui.h"
+
+// Grid
+Rect Gui_Layout_Grid::rect()
+{
+	return last_rect;
+}
+
+void Gui_Layout_Grid::row(u32 count)
+{
+	cursor.x = 0;
+	cursor.y += count;
+}
+
+Rect Gui_Layout_Grid::cell(u32 count)
+{
+	count = minimum(count, max_cells_count.x);
+	s32 free_space_in_row = max_cells_count.x - cursor.x;
+	if(free_space_in_row < count)
+		row();
+
+	last_rect = rect_at(cursor, {count, 1});
+	cursor.x += count;
+
+	return last_rect;
+}
+
+Rect Gui_Layout_Grid::rect_at(v2s cell_index, v2s size)
+{
+	Rect result;
+	v2 cell_border_v = v2{cell_border, cell_border};
+	result.position = window_position + cell_border_v + (cell_border_v + cell_size) * V2(cell_index);
+	result.size = cell_size * V2(size) + cell_border_v * (V2(size - v2s{1,1}));
+	return result;
+}
+
+
+
+Gui_Layout_Grid gui_layout_grid_create_by_divisions(v2 position, v2 window_size, u32 divisions_x, u32 divisions_y, f32 border)
+{
+	Gui_Layout_Grid layout;
+	layout.window_position = position;
+	layout.window_size     = window_size;
+	layout.cell_size       = (window_size - v2{1,1}*border) / v2{divisions_x, divisions_y} - v2{1,1}*border;
+	layout.cell_border     = border;
+	layout.max_cells_count = v2s{divisions_x, divisions_y};
+
+	layout.cursor = {0,0};
+	layout.last_rect = layout.rect_at({0,0});
+
+	return layout;
+}
+
+Gui_Layout_Grid gui_layout_grid_create_by_cell_size(v2 position, v2 window_size, v2 cell_size, f32 border)
+{
+	Gui_Layout_Grid layout;
+	layout.window_position = position;
+	layout.window_size     = window_size;
+	layout.cell_size       = cell_size;
+	layout.cell_border     = border;
+	layout.max_cells_count = V2S((window_size - v2{1,1}*border) / (cell_size + v2{1,1}*border));
+
+	layout.cursor = {0,0};
+	layout.last_rect = layout.rect_at({0,0});
+
+	return layout;
+}
+
+
+// Basic
+Rect Gui_Layout_Basic::rect()
+{
+	return last_rect;
+}
+
+void Gui_Layout_Basic::push_rect(Rect r)
+{
+	cursor.x = cursor.x + r.size.x + element_distance.x;
+	cursor.y = cursor.y;
+
+	last_rect = r;
+	next_row_y = maximum(next_row_y, cursor.y + r.size.y + element_distance.y);
+}
+
+void Gui_Layout_Basic::row()
+{
+	cursor.x = window_padding.x;
+	cursor.y = next_row_y;
+	next_row_y = cursor.y + font_size + element_distance.y;
+}
+
+Rect Gui_Layout_Basic::label_rect(const char *text)
+{
+	Rect r;
+	r.size.y = font_size;
+	r.size.x = gui_text_compute_size(text).x;
+
+	f32 remaining_space_x = window_size.x - 2*window_padding.x - cursor.x;
+	if(cursor.x != window_padding.x && remaining_space_x < r.size.x)
+		row();
+
+	r.position = window_position + cursor;
+
+	push_rect(r);
+	return r;
+}
+
+Rect Gui_Layout_Basic::button_rect(const char *text)
+{
+	Rect r;
+	r.size.y = font_size;
+	r.size.x = gui_text_compute_size(text).x;
+	r.size += 2*button_padding;
+
+	f32 remaining_space_x = window_size.x - 2*window_padding.x - cursor.x;
+	if(cursor.x != window_padding.x && remaining_space_x < r.size.x)
+		row();
+
+	r.position = window_position + cursor;
+
+	push_rect(r);
+	return r;
+}
+
+Rect Gui_Layout_Basic::button_rect(f32 length)
+{
+	Rect r;
+	r.size.y = font_size;
+	r.size.x = length;
+	r.size.y += 2*button_padding.y; // No x padding in this case. We already have an assigned length
+
+	f32 remaining_space_x = window_size.x - 2*window_padding.x - cursor.x;
+	if(cursor.x != window_padding.x && remaining_space_x < r.size.x)
+		row();
+
+	r.position = window_position + cursor;
+
+	push_rect(r);
+	return r;
+}
+
+Gui_Layout_Basic gui_layout_basic_create(v2 position, v2 size, f32 font_size)
+{
+	Gui_Layout_Basic layout;
+	layout.window_position = position;
+	layout.window_size = size;
+
+	layout.cursor = {0,0};
+	layout.next_row_y = 0;
+	layout.last_rect = {0,0,0,0};
+
+	layout.font_size = font_size;
+	layout.button_padding = {0,0};
+	layout.element_distance = {0,0};
+	layout.window_padding = {0,0};
+
+	return layout;
+}