Fixes for internal API changes in 1.92.x: ImFontBaked, ImGuiWindow::CalcFontSize(). (#614)

Author: ocornut

implot.cpp

@@ -342,11 +342,16 @@ void AddTextVertical(ImDrawList *DrawList, ImVec2 pos, ImU32 col, const char *te
     if (!text_end)
         text_end = text_begin + strlen(text_begin);
     ImGuiContext& g = *GImGui;
+#ifdef IMGUI_HAS_TEXTURES
+    ImFontBaked* font = g.Font->GetFontBaked(g.FontSize);
+    const float scale = g.FontSize / font->Size;
+#else
     ImFont* font = g.Font;
+    const float scale = g.FontSize / font->FontSize;
+#endif
     // Align to be pixel perfect
     pos.x = ImFloor(pos.x);
     pos.y = ImFloor(pos.y);
-    const float scale = g.FontSize / font->FontSize;
     const char* s = text_begin;
     int chars_exp = (int)(text_end - s);
     int chars_rnd = 0;
@@ -3059,7 +3064,11 @@ void EndPlot() {
                 ImGui::SetKeyOwner(ImGuiKey_MouseWheelY, plot.Items.ID);
                 if (IO.MouseWheel != 0.0f) {
                     ImVec2 max_step = legend.Rect.GetSize() * 0.67f;
+#if IMGUI_VERSION_NUM < 19172
                     float font_size = ImGui::GetCurrentWindow()->CalcFontSize();
+#else
+                    float font_size = ImGui::GetCurrentWindow()->FontRefSize;
+#endif
                     float scroll_step = ImFloor(ImMin(2 * font_size, max_step.x));
                     legend.Scroll.x += scroll_step * IO.MouseWheel;
                     legend.Scroll.y += scroll_step * IO.MouseWheel;
@@ -3578,7 +3587,11 @@ void EndSubplots() {
                 ImGui::SetKeyOwner(ImGuiKey_MouseWheelY, subplot.Items.ID);
                 if (IO.MouseWheel != 0.0f) {
                     ImVec2 max_step = legend.Rect.GetSize() * 0.67f;
+#if IMGUI_VERSION_NUM < 19172
                     float font_size = ImGui::GetCurrentWindow()->CalcFontSize();
+#else
+                    float font_size = ImGui::GetCurrentWindow()->FontRefSize;
+#endif
                     float scroll_step = ImFloor(ImMin(2 * font_size, max_step.x));
                     legend.Scroll.x += scroll_step * IO.MouseWheel;
                     legend.Scroll.y += scroll_step * IO.MouseWheel;