59 lines
2.0 KiB
Rust
59 lines
2.0 KiB
Rust
//! Step and bank/pattern cursor navigation.
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use super::App;
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impl App {
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pub fn next_step(&mut self) {
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let len = self.current_edit_pattern().length;
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self.editor_ctx.step = (self.editor_ctx.step + 1) % len;
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self.load_step_to_editor();
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}
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pub fn prev_step(&mut self) {
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let len = self.current_edit_pattern().length;
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self.editor_ctx.step = (self.editor_ctx.step + len - 1) % len;
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self.load_step_to_editor();
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}
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pub fn step_up(&mut self) {
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let len = self.current_edit_pattern().length;
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let spp = self.editor_ctx.steps_per_page.get();
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let page_start = (self.editor_ctx.step / spp) * spp;
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let steps_on_page = (page_start + spp).min(len) - page_start;
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let num_rows = steps_on_page.div_ceil(8);
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let steps_per_row = steps_on_page.div_ceil(num_rows);
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if self.editor_ctx.step >= steps_per_row {
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self.editor_ctx.step -= steps_per_row;
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} else {
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self.editor_ctx.step = (self.editor_ctx.step + len - steps_per_row) % len;
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}
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self.load_step_to_editor();
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}
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pub fn step_down(&mut self) {
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let len = self.current_edit_pattern().length;
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let spp = self.editor_ctx.steps_per_page.get();
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let page_start = (self.editor_ctx.step / spp) * spp;
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let steps_on_page = (page_start + spp).min(len) - page_start;
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let num_rows = steps_on_page.div_ceil(8);
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let steps_per_row = steps_on_page.div_ceil(num_rows);
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self.editor_ctx.step = (self.editor_ctx.step + steps_per_row) % len;
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self.load_step_to_editor();
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}
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pub fn select_edit_pattern(&mut self, pattern: usize) {
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self.editor_ctx.pattern = pattern;
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self.editor_ctx.step = 0;
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self.load_step_to_editor();
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}
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pub fn select_edit_bank(&mut self, bank: usize) {
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self.editor_ctx.bank = bank;
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self.editor_ctx.pattern = 0;
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self.editor_ctx.step = 0;
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self.load_step_to_editor();
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}
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}
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