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Add the progress bar layer from Pebble UI Pattern examples

Natasha Kerensikova authored on18/03/2016 20:15:10
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src/progress_layer.c
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+/*
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+ * This is copied dirictly without any modification other than the addition
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+ * of this header, from "UI Pattern" project in Pebble examples
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+ * https://github.com/pebble-examples/ui-patterns
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+ * It is covered by the MIT licence detailed below:
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+ *
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+ * Copyright (c) 2015 Pebble Examples
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+ *
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+ * Permission is hereby granted, free of charge, to any person obtaining a copy
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+ * of this software and associated documentation files (the "Software"), to deal
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+ * in the Software without restriction, including without limitation the rights
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+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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+ * copies of the Software, and to permit persons to whom the Software is
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+ * furnished to do so, subject to the following conditions:
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+ *
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+ * The above copyright notice and this permission notice shall be included in all
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+ * copies or substantial portions of the Software.
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+ *
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+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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+ * SOFTWARE.
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+ */
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+#include "progress_layer.h"
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+
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+#define MIN(a,b) (((a)<(b))?(a):(b))
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+
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+typedef struct {
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+  int16_t progress_percent;
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+  int16_t corner_radius;
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+  GColor foreground_color;
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+  GColor background_color;
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+} ProgressLayerData;
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+
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+static int16_t scale_progress_bar_width_px(unsigned int progress_percent, int16_t rect_width_px) {
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+  return ((progress_percent * (rect_width_px)) / 100);
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+}
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+
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+static void progress_layer_update_proc(ProgressLayer* progress_layer, GContext* ctx) {
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+  ProgressLayerData *data = (ProgressLayerData *)layer_get_data(progress_layer);
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+  GRect bounds = layer_get_bounds(progress_layer);
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+
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+  int16_t progress_bar_width_px = scale_progress_bar_width_px(data->progress_percent, bounds.size.w);
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+  GRect progress_bar = GRect(bounds.origin.x, bounds.origin.y, progress_bar_width_px, bounds.size.h);
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+
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+  graphics_context_set_fill_color(ctx, data->background_color);
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+  graphics_fill_rect(ctx, bounds, data->corner_radius, GCornersAll);
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+
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+  graphics_context_set_fill_color(ctx, data->foreground_color);
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+  graphics_fill_rect(ctx, progress_bar, data->corner_radius, GCornersAll);
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+
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+#ifdef PBL_PLATFORM_APLITE
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+  graphics_context_set_stroke_color(ctx, data->background_color);
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+  graphics_draw_rect(ctx, progress_bar);
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+#endif
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+}
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+
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+ProgressLayer* progress_layer_create(GRect frame) {
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+  ProgressLayer *progress_layer = layer_create_with_data(frame, sizeof(ProgressLayerData));
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+  layer_set_update_proc(progress_layer, progress_layer_update_proc);
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+  layer_mark_dirty(progress_layer);
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+
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+  ProgressLayerData *data = (ProgressLayerData *)layer_get_data(progress_layer);
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+  data->progress_percent = 0;
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+  data->corner_radius = 1;
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+  data->foreground_color = GColorBlack;
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+  data->background_color = GColorWhite;
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+
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+  return progress_layer;
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+}
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+
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+void progress_layer_destroy(ProgressLayer* progress_layer) {
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+  if (progress_layer) {
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+    layer_destroy(progress_layer);
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+  }
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+}
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+
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+void progress_layer_increment_progress(ProgressLayer* progress_layer, int16_t progress) {
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+  ProgressLayerData *data = (ProgressLayerData *)layer_get_data(progress_layer);
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+  data->progress_percent = MIN(100, data->progress_percent + progress);
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+  layer_mark_dirty(progress_layer);
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+}
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+
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+void progress_layer_set_progress(ProgressLayer* progress_layer, int16_t progress_percent) {
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+  ProgressLayerData *data = (ProgressLayerData *)layer_get_data(progress_layer);
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+  data->progress_percent = MIN(100, progress_percent);
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+  layer_mark_dirty(progress_layer);
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+}
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+
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+void progress_layer_set_corner_radius(ProgressLayer* progress_layer, uint16_t corner_radius) {
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+  ProgressLayerData *data = (ProgressLayerData *)layer_get_data(progress_layer);
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+  data->corner_radius = corner_radius;
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+  layer_mark_dirty(progress_layer);
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+}
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+
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+void progress_layer_set_foreground_color(ProgressLayer* progress_layer, GColor color) {
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+  ProgressLayerData *data = (ProgressLayerData *)layer_get_data(progress_layer);
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+  data->foreground_color = color;
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+  layer_mark_dirty(progress_layer);
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+}
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+
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+void progress_layer_set_background_color(ProgressLayer* progress_layer, GColor color) {
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+  ProgressLayerData *data = (ProgressLayerData *)layer_get_data(progress_layer);
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+  data->background_color = color;
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+  layer_mark_dirty(progress_layer);
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+}
src/progress_layer.h
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0 110 
new file mode 100644
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+/*
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+ * This is copied dirictly without any modification other than the addition
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+ * of this header, from "UI Pattern" project in Pebble examples
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+ * https://github.com/pebble-examples/ui-patterns
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+ * It is covered by the MIT licence detailed below:
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+ *
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+ * Copyright (c) 2015 Pebble Examples
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+ *
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+ * Permission is hereby granted, free of charge, to any person obtaining a copy
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+ * of this software and associated documentation files (the "Software"), to deal
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+ * in the Software without restriction, including without limitation the rights
12 
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
13 
+ * copies of the Software, and to permit persons to whom the Software is
14 
+ * furnished to do so, subject to the following conditions:
15 
+ *
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+ * The above copyright notice and this permission notice shall be included in all
17 
+ * copies or substantial portions of the Software.
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+ *
19 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
20 
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
21 
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
22 
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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+ * SOFTWARE.
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+ */
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+#pragma once
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+
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+#include <pebble.h>
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+
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+typedef Layer ProgressLayer;
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+
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+ProgressLayer* progress_layer_create(GRect frame);
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+void progress_layer_destroy(ProgressLayer* progress_layer);
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+void progress_layer_increment_progress(ProgressLayer* progress_layer, int16_t progress);
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+void progress_layer_set_progress(ProgressLayer* progress_layer, int16_t progress_percent);
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+void progress_layer_set_corner_radius(ProgressLayer* progress_layer, uint16_t corner_radius);
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+void progress_layer_set_foreground_color(ProgressLayer* progress_layer, GColor color);
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+void progress_layer_set_background_color(ProgressLayer* progress_layer, GColor color);