236 lines
8.4 KiB
JavaScript
236 lines
8.4 KiB
JavaScript
{
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let options = {
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srcFont: "6x8",
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titleFont: "12x20",
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bodyFont: "12x20",
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headerBgColor: g.theme.bgH,
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headerFgColor: g.theme.fg,
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headerHlColor: g.toColor(0, 1, 0),
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margin: 3, // space on sides
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padding: 8, // space between header and body
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fh: 20, // footer height - leave this much space for a footer
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};
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setOptions = function(opts) {
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options = Object.assign(options, opts);
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};
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setClipRect = function (x, y, x2, y2) {
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if (y < Bangle.appRect.y) y = Bangle.appRect.y;
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if (y2 < Bangle.appRect.y) y2 = Bangle.appRect.y;
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if (y > Bangle.appRect.y2 - 10) y = Bangle.appRect.y2 - options.fh - 1;
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if (y2 > Bangle.appRect.y2 - 10) y2 = Bangle.appRect.y2 - options.fh - 1;
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return g.setClipRect(x, y, x2, y2);
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};
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const centerString = (str, x, y, w) => {
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g.setFontAlign(0, -1);
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g.drawString(str, x + (w / 2), y);
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};
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HeaderBox = function(msg, messageRect) {
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this.icon = require("messageicons").getImage(msg);
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this.color = require("messageicons").getColor(msg, {default:g.theme.fg2});
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this.iconSize = 48;
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this.titleW = messageRect.w - this.iconSize;
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if (!msg.body) this.titleLines = "";
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else {
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this.titleLines = (() => {
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if (msg.title) return g.setFont(options.titleFont).wrapString(msg.title, this.titleW);
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else return "";
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})();
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}
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let sw = g.stringWidth(msg.title); // string width
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let ew = g.stringWidth("..."); // elipsis width
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let w = this.titleW - ew - options.margin; // max width for title
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let cw = sw / msg.title.length; // character width - will only be an average if not a fixed width font
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this.titleOneLine = msg.title.substr(0, Math.floor(w / cw)).concat("...");
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this.titleLineH = g.setFont(options.titleFont).getFontHeight();
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this.titleX = 0;
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this.titleY = 0;
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this.srcLineH = g.setFont(options.srcFont).getFontHeight();
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this.srcLines = g.wrapString(msg.src, this.iconSize);
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this.srcH = this.srcLineH * this.srcLines.length;
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this.srcX = this.x2 - this.iconSize;
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this.srcY = 0;
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this.im = g.imageMetrics(this.icon);
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this.imgX = this.titleW + ((this.iconSize - this.im.width) / 2);
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this.minH = Math.max(this.titleLineH, this.srcH + this.im.height) + options.padding;
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this.maxH = Math.max(this.titleLineH * this.titleLines.length, this.iconSize) + options.padding;
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this.h = this.maxH;
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this.new = msg.new ?? false;
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}; // HeaderBox
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HeaderBox.prototype.draw = function(messageRect) {
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const getImgY = () => (this.h - options.padding - this.im.height + (this.h == this.maxH ? this.srcH : 0)) / 2;
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const x = messageRect.x
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const x2 = messageRect.x2;
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const y = messageRect.y;
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if (this.h < this.minH) this.h = this.minH;
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else if (this.h > this.maxH) this.h = this.maxH;
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let y2 = messageRect.y + this.h - 1;
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exports.setClipRect(x, y, x2, y2);
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g.setBgColor(options.headerBgColor).clearRect(x, y, x2, y2);
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g.setBgColor(g.theme.bg2).clearRect(x+3, y+3, x2-3, y2-3);
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if (this.new) g.setColor(options.headerHlColor).fillPoly([x, y, x + 20, y, x, y + 20]);
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g.setColor(options.headerFgColor);
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g.setFont(options.titleFont);
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if (this.h > this.minH) { // multi-line title
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let titleY = Math.floor(((this.h - options.padding - (this.titleLineH * this.titleLines.length)) / 2) + y);
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if (this.titleLines) {
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for (let line of this.titleLines) {
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centerString(line, x, titleY, this.titleW);
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titleY += this.titleLineH;
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}
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}
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} else { // single-line title
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const titleY = Math.floor(((this.h - options.padding - this.titleLineH) / 2) + y);
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centerString(this.titleOneLine, x + options.margin, titleY, this.titleW);
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}
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g.setFont(options.srcFont);
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if (this.h == this.maxH) {
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let srcY = y+4;
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for (let line of this.srcLines) {
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centerString(line, x2 - this.iconSize, srcY, this.iconSize);
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srcY += this.srcLineH;
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}
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}
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g.setColor(this.color).drawImage(this.icon, x + this.imgX, y + getImgY());
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};
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const TextBox = function(msg, messageRect) {
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if (msg.body) body = msg.body;
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else body = msg.title;
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this.lineH = (g.setFont(options.bodyFont).getFontHeight()) + 2; // plus 2 to add a little spacing between lines
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this.lines = g.wrapString(body, messageRect.w - options.margin);
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if (msg.subject) { // If there's a subject, add it to the top
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lines.splice(0, 0, msg.subject);
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}
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this.scrollY = 0;
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this.minY = messageRect.y2 - (this.lineH * (this.lines.length + 3));
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if (this.minY > 0) this.minY = 0;
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}; // TextBox
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TextBox.prototype.draw = function(messageRect, yOffset) {
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x = messageRect.x;
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y = messageRect.y + yOffset;
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x2 = messageRect.x2;
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y2 = messageRect.y2;
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g.setColor(g.theme.fg).setBgColor(g.theme.bg);
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exports.setClipRect(x, y, x2, y2);
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g.clearRect(x, y, x2, y2);
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g.setFont(options.bodyFont).setFontAlign(-1, -1);
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let lineY = this.scrollY;
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for (let line of this.lines) {
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if (y + lineY >= y - this.lineH) g.drawString(line, x + options.margin, y + lineY);
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lineY += this.lineH;
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}
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};
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MessageBox = function(msg, yOffset) {
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this.msg = msg;
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this.yOffset = yOffset ?? 0;
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this.xOffset = 0;
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this.rect = {
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w: Bangle.appRect.w,
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h: Bangle.appRect.h,
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x: Bangle.appRect.x + this.xOffset,
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y: Bangle.appRect.y + this.yOffset,
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x2:Bangle.appRect.x2 + this.xOffset,
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y2: Bangle.appRect.y2 + this.yOffset
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};
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this.headerBox = new HeaderBox(msg, this.rect);
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this.textBox = new TextBox(msg, this.rect);
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let messageH = this.textBox.lines.length * this.textBox.lineH;
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let boxH = this.rect.h - this.headerBox.maxH - options.fh;
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if ( messageH <= boxH) this.oneScreen = true;
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else this.oneScreen = false;
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this.top = true;
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if (this.oneScreen) {
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this.bottom = true;
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this.textBox.initScrollY = Math.round((boxH - messageH) / 2);
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} else {
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this.bottom = false;
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this.textBox.initScrollY = 0;
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}
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this.textBox.scrollY = this.textBox.initScrollY;
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this.sbH = this.rect.h / messageH * this.rect.h; // scrollbar height
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this.sbRatio = (this.rect.h - this.sbH) / Math.abs(this.textBox.minY); // scrollbar ratio
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}; // MessageBox
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MessageBox.prototype.prevOffset = Bangle.appRect.y - Bangle.appRect.h;
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MessageBox.prototype.nextOffset = Bangle.appRect.y2 + 1;
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MessageBox.prototype.setNew = function() {
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this.headerBox.new = true;
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}
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MessageBox.prototype.clearNew = function() {
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this.headerBox.new = false;
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}
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MessageBox.prototype.reset = function(yOffset) {
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if (!yOffset) yOffset = 0;
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this.yOffset = yOffset;
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this.headerBox.h = this.headerBox.maxH;
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this.textBox.scrollY = this.textBox.initScrollY;
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this.top = true;
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if (this.oneScreen) this.bottom = true;
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else this.bottom = false;
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};
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MessageBox.prototype.draw = function() {
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this.rect.x = Bangle.appRect.x + this.xOffset;
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this.rect.x2 = Bangle.appRect.x2 + this.xOffset;
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this.rect.y = Bangle.appRect.y + this.yOffset;
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this.rect.y2 = Bangle.appRect.y2 + this.yOffset;
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exports.setClipRect(this.rect.x, this.rect.y, this.rect.x2, this.rect.y2);
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g.clearRect(this.rect.x, this.rect.y, this.rect.x2, this.rect.y2);
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this.headerBox.draw(this.rect);
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this.textBox.draw(this.rect, this.headerBox.h);
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exports.setClipRect(this.rect.x, this.rect.y, this.rect.x2, this.rect.y2);
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this.drawScrollbar();
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//this.drawFooter();
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};
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MessageBox.prototype.drawScrollbar = function() {
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if (this.oneScreen) return;
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let sbY = this.rect.y + (this.sbRatio * Math.abs(this.textBox.scrollY));
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g.setColor(g.theme.fg).drawLine(this.rect.x, sbY, this.rect.x, sbY + this.sbH);
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};
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MessageBox.prototype.scroll = function(dy) {
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if (this.oneScreen) return;
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// if ((dy > 0 && this.top) || (dy < 0 && this.bottom)) {
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// return;
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// }
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if (this.headerBox.h > this.headerBox.minH && dy < 0) {
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this.headerBox.h += dy;
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if (this.headerBox.h < this.headerBox.minH) this.headerBox.h = this.headerBox.minH;
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} else if (this.headerBox.h < this.headerBox.maxH && dy > 0) {
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this.headerBox.h += dy;
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if (this.headerBox.h > this.headerBox.maxH) this.headerBox.h = this.headerBox.maxH;
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}
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if (this.headerBox.h == this.headerBox.minH && dy < 0) this.textBox.scrollY += dy;
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else if (dy > 0) this.textBox.scrollY += dy;
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if (this.textBox.scrollY <= this.textBox.minY) {
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this.bottom = true;
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this.textBox.scrollY = this.textBox.minY;
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} else {
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this.bottom = false;
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}
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if (this.textBox.scrollY >= 0 && this.headerBox.h == this.headerBox.maxH) {
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this.top = true;
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this.textBox.scrollY = this.textBox.initScrollY;
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} else {
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this.top = false;
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}
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this.draw();
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};
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module.exports.HeaderBox = HeaderBox;
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module.exports.MessageBox = MessageBox;
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module.exports.setOptions = setOptions;
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module.exports.setClipRect = setClipRect;
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};
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