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115 lines
3.0 KiB
C++
115 lines
3.0 KiB
C++
#include <algorithm>
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#include <sstream>
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#include "UI/OnScreenDisplay.h"
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#include "Common/Data/Color/RGBAUtil.h"
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#include "Common/Render/TextureAtlas.h"
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#include "Common/Render/DrawBuffer.h"
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#include "Common/UI/Context.h"
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#include "Common/TimeUtil.h"
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OnScreenMessages osm;
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void OnScreenMessagesView::Draw(UIContext &dc) {
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// First, clean out old messages.
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osm.Lock();
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osm.Clean();
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// Get height
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float w, h;
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dc.MeasureText(dc.theme->uiFont, 1.0f, 1.0f, "Wg", &w, &h);
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float y = 10.0f;
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// Then draw them all.
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const std::list<OnScreenMessages::Message> &messages = osm.Messages();
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double now = time_now_d();
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for (auto iter = messages.begin(); iter != messages.end(); ++iter) {
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float alpha = (iter->endTime - now) * 4.0f;
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if (alpha > 1.0) alpha = 1.0f;
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if (alpha < 0.0) alpha = 0.0f;
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dc.SetFontScale(1.0f, 1.0f);
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// Messages that are wider than the screen are left-aligned instead of centered.
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int align = 0;
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// Simple heuristic: Draw messages that contain line breaks with ASCII_FONT (likely debug output)
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if (iter->text.find('\n') != 0) {
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align |= FLAG_DYNAMIC_ASCII;
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}
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float tw, th;
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dc.MeasureText(dc.theme->uiFont, 1.0f, 1.0f, iter->text.c_str(), &tw, &th, align);
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float x = bounds_.centerX();
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if (tw > bounds_.w) {
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align |= ALIGN_TOP | ALIGN_LEFT;
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x = 2;
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} else {
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align |= ALIGN_TOP | ALIGN_HCENTER;
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}
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float scale = 1.0f;
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if (th > bounds_.h - y) {
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// Scale down!
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scale = std::max(0.15f, (bounds_.h - y) / th);
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dc.SetFontScale(scale, scale);
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}
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dc.SetFontStyle(dc.theme->uiFont);
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dc.DrawTextShadow(iter->text.c_str(), x, y, colorAlpha(iter->color, alpha), align);
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y += th * scale;
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}
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osm.Unlock();
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}
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std::string OnScreenMessagesView::DescribeText() const {
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std::stringstream ss;
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const auto &messages = osm.Messages();
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for (auto iter = messages.begin(); iter != messages.end(); ++iter) {
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if (iter != messages.begin()) {
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ss << "\n";
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}
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ss << iter->text;
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}
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return ss.str();
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}
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void OnScreenMessages::Clean() {
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restart:
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double now = time_now_d();
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for (auto iter = messages_.begin(); iter != messages_.end(); iter++) {
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if (iter->endTime < now) {
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messages_.erase(iter);
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goto restart;
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}
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}
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}
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void OnScreenMessages::Show(const std::string &text, float duration_s, uint32_t color, int icon, bool checkUnique, const char *id) {
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double now = time_now_d();
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std::lock_guard<std::mutex> guard(mutex_);
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if (checkUnique) {
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for (auto iter = messages_.begin(); iter != messages_.end(); ++iter) {
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if (iter->text == text || (id && iter->id && !strcmp(iter->id, id))) {
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Message msg = *iter;
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msg.endTime = now + duration_s;
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msg.text = text;
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msg.color = color;
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messages_.erase(iter);
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messages_.insert(messages_.begin(), msg);
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return;
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}
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}
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}
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Message msg;
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msg.text = text;
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msg.color = color;
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msg.endTime = now + duration_s;
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msg.icon = icon;
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msg.id = id;
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messages_.insert(messages_.begin(), msg);
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}
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void OnScreenMessages::ShowOnOff(const std::string &message, bool b, float duration_s, uint32_t color, int icon) {
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Show(message + (b ? ": on" : ": off"), duration_s, color, icon);
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}
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