ppsspp/UI/OnScreenDisplay.cpp

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#include "UI/OnScreenDisplay.h"
#include "UI/ui_atlas.h"
#include "base/colorutil.h"
#include "base/timeutil.h"
#include "gfx_es2/draw_buffer.h"
#include "ui/ui_context.h"
OnScreenMessages osm;
void OnScreenMessagesView::Draw(UIContext &dc) {
// First, clean out old messages.
osm.Lock();
osm.Clean();
// Get height
float w, h;
dc.Draw()->MeasureText(UBUNTU24, "Wg", &w, &h);
float y = 10.0f;
// Then draw them all.
const std::list<OnScreenMessages::Message> &messages = osm.Messages();
for (auto iter = messages.begin(); iter != messages.end(); ++iter) {
float alpha = (iter->endTime - time_now_d()) * 4.0f;
if (alpha > 1.0) alpha = 1.0f;
if (alpha < 0.0) alpha = 0.0f;
// Messages that are wider than the screen are left-aligned instead of centered.
float tw, th;
dc.Draw()->MeasureText(UBUNTU24, iter->text.c_str(), &tw, &th);
float x = bounds_.centerX();
int align = ALIGN_TOP | ALIGN_HCENTER;
if (tw > bounds_.w) {
align = ALIGN_TOP | ALIGN_LEFT;
x = 2;
}
dc.Draw()->DrawTextShadow(UBUNTU24, iter->text.c_str(), x, y, colorAlpha(iter->color, alpha), align);
y += h;
}
osm.Unlock();
}
void OnScreenMessages::Clean() {
restart:
double now = time_now_d();
for (auto iter = messages_.begin(); iter != messages_.end(); iter++) {
if (iter->endTime < now) {
messages_.erase(iter);
goto restart;
}
}
}
void OnScreenMessages::Show(const std::string &message, float duration_s, uint32_t color, int icon, bool checkUnique) {
double now = time_now_d();
std::lock_guard<std::recursive_mutex> guard(mutex_);
if (checkUnique) {
for (auto iter = messages_.begin(); iter != messages_.end(); ++iter) {
if (iter->text == message) {
Message msg = *iter;
msg.endTime = now + duration_s;
messages_.erase(iter);
messages_.insert(messages_.begin(), msg);
return;
}
}
}
Message msg;
msg.text = message;
msg.color = color;
msg.endTime = now + duration_s;
msg.icon = icon;
messages_.insert(messages_.begin(), msg);
}
void OnScreenMessages::ShowOnOff(const std::string &message, bool b, float duration_s, uint32_t color, int icon) {
Show(message + (b ? ": on" : ": off"), duration_s, color, icon);
}