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GUI: detect UI scale factor when moving window

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This commit is contained in:
tildearrow 2023-08-31 01:24:06 -05:00
parent 9caa2f38f4
commit a882d7bcf2
6 changed files with 107 additions and 25 deletions
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36
src/gui/gui.cpp
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@ -3491,6 +3491,7 @@ bool FurnaceGUI::loop() {
scrX=ev.window.data1;
scrY=ev.window.data2;
updateWindow=true;
shallDetectScale=2;
logV("window moved to %dx%d",scrX,scrY);
break;
case SDL_WINDOWEVENT_SIZE_CHANGED:
@ -6140,7 +6141,38 @@ bool FurnaceGUI::loop() {
if (shallDetectScale) {
if (--shallDetectScale<1) {
if (settings.dpiScale<0.5f) {
applyUISettings();
const char* videoBackend=SDL_GetCurrentVideoDriver();
double newScale=getScaleFactor(videoBackend,sdlWin);
if (newScale<0.1f) {
logW("scale what?");
newScale=1.0f;
}
if (newScale!=dpiScale) {
logD("auto UI scale changed (%f != %f) - applying settings...",newScale,dpiScale);
ImGui::GetIO().Fonts->Clear();
applyUISettings();
if (rend) rend->destroyFontsTexture();
if (!ImGui::GetIO().Fonts->Build()) {
logE("error while building font atlas!");
showError("error while loading fonts! please check your settings.");
ImGui::GetIO().Fonts->Clear();
mainFont=ImGui::GetIO().Fonts->AddFontDefault();
patFont=mainFont;
bigFont=mainFont;
headFont=mainFont;
if (rend) rend->destroyFontsTexture();
if (!ImGui::GetIO().Fonts->Build()) {
logE("error again while building font atlas!");
} else {
rend->createFontsTexture();
}
} else {
rend->createFontsTexture();
}
}
}
}
}
@ -6368,7 +6400,7 @@ bool FurnaceGUI::init() {
dpiScale=settings.dpiScale;
} else {
logD("auto-detecting UI scale factor.");
dpiScale=getScaleFactor(videoBackend);
dpiScale=getScaleFactor(videoBackend,sdlWin);
logD("scale factor: %f",dpiScale);
if (dpiScale<0.1f) {
logW("scale what?");