139 lines
4.3 KiB
C
139 lines
4.3 KiB
C
/*
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* Kangaroo Punch MultiPlayer Game Server Mark II
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* Copyright (C) 2020-2021 Scott Duensing
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*
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*/
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#include "button.h"
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static void buttonMouseEvent(WidgetT *widget, MouseT *mouse, uint16_t x, uint16_t y, uint8_t event);
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static void buttonPaint(WidgetT *widget);
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void buttonDel(WidgetT **widget) {
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ButtonT *b = (ButtonT *)*widget;
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if (b->title) free(b->title);
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free(b);
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b = NULL;
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}
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WidgetT *buttonInit(WidgetT *button, uint16_t x, uint16_t y, char *title, widgetCallback callback) {
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ButtonT *b = (ButtonT *)button;
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b->base.magic = MAGIC_BUTTON;
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b->base.x = x;
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b->base.y = y;
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b->base.delMethod = buttonDel;
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b->base.paintMethod = buttonPaint;
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b->base.mouseEventMethod = buttonMouseEvent;
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b->title = NULL;
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buttonSetClickHandler(b, callback);
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buttonSetTitle(b, title);
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// Width is set in buttonSetTitle
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b->base.h = fontHeightGet(_guiFont) + (_guiMetric[METRIC_BUTTON_VERTICAL_PADDING] * 2) + (_guiMetric[METRIC_BUTTON_BEZEL_SIZE] * 2);
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return button;
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}
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static void buttonMouseEvent(WidgetT *widget, MouseT *mouse, uint16_t x, uint16_t y, uint8_t event) {
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ButtonT *b = (ButtonT *)widget;
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(void)x;
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(void)y;
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(void)mouse;
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// Button pressed?
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if (event == MOUSE_EVENT_LEFT_HOLD) {
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if (!GUI_GET_FLAG(widget, WIDGET_FLAG_ACTIVE)) {
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GUI_SET_FLAG(widget, WIDGET_FLAG_ACTIVE);
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GUI_SET_FLAG(widget, WIDGET_FLAG_DIRTY);
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}
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} else {
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if (GUI_GET_FLAG(widget, WIDGET_FLAG_ACTIVE)) {
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GUI_CLEAR_FLAG(widget, WIDGET_FLAG_ACTIVE);
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GUI_SET_FLAG(widget, WIDGET_FLAG_DIRTY);
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}
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}
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// Fire callback on mouse up.
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if (event == MOUSE_EVENT_LEFT_UP) {
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if (b->clicked) b->clicked(widget);
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}
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}
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ButtonT *buttonNew(uint16_t x, uint16_t y, char *title, widgetCallback callback) {
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ButtonT *button = (ButtonT *)malloc(sizeof(ButtonT));
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WidgetT *widget = NULL;
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if (!button) return NULL;
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widget = widgetInit((WidgetT *)button);
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if (!widget) {
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free(button);
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return NULL;
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}
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button = (ButtonT *)buttonInit((WidgetT *)button, x, y, title, callback);
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return button;
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}
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static void buttonPaint(WidgetT *widget) {
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ButtonT *b = (ButtonT *)widget;
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int16_t i;
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int8_t active = GUI_GET_FLAG(widget, WIDGET_FLAG_ACTIVE);
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ColorT highlight = active ? _guiColor[COLOR_BUTTON_SHADOW] : _guiColor[COLOR_BUTTON_HIGHLIGHT];
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ColorT shadow = active ? _guiColor[COLOR_BUTTON_HIGHLIGHT] : _guiColor[COLOR_BUTTON_SHADOW] ;
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if (GUI_GET_FLAG(widget, WIDGET_FLAG_DIRTY)) {
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vbeSurfaceSet(b->base.surface);
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// Draw bezel.
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for (i=0; i<_guiMetric[METRIC_BUTTON_BEZEL_SIZE]; i++) {
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guiDrawHighlightFrame(b->base.x + i, b->base.y + i, b->base.x + b->base.w - i, b->base.y + b->base.h - i, highlight, shadow);
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}
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// Draw background (depends on x from above).
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guiDrawRectangleFilled(b->base.x + i, b->base.y + i, b->base.x + b->base.w - i, b->base.y + b->base.h - i, _guiColor[COLOR_BUTTON_BACKGROUND]);
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// Draw title (depends on x from above).
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fontRender(_guiFont, b->title, _guiColor[COLOR_BUTTON_TEXT], _guiColor[COLOR_BUTTON_BACKGROUND], b->base.x + i + _guiMetric[METRIC_BUTTON_HORIZONTAL_PADDING] + active, b->base.y + i + _guiMetric[METRIC_BUTTON_VERTICAL_PADDING] + active);
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GUI_CLEAR_FLAG(widget, WIDGET_FLAG_DIRTY);
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}
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}
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void buttonSetClickHandler(ButtonT *button, widgetCallback callback) {
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button->clicked = callback;
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}
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void buttonSetTitle(ButtonT *button, char *title) {
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if (button->title) free(button->title);
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button->title = strdup(title);
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button->base.w = (strlen(title) * fontWidthGet(_guiFont)) + (_guiMetric[METRIC_BUTTON_HORIZONTAL_PADDING] * 2) + (_guiMetric[METRIC_BUTTON_BEZEL_SIZE] * 2);
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GUI_SET_FLAG((WidgetT *)button, WIDGET_FLAG_DIRTY);
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}
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