Misc: Asserting in NewFrame() if style.WindowMinSize is zero or smaller than (1.0f,1.0f). Internal: ImHash functions tweaks. Added InputText() to query status section.

docs/CHANGELOG.txt

@@ -41,7 +41,7 @@ Breaking Changes:
 
 Other Changes:
 
-- Nav: Fixed a tap on AltGR (e.g. German keyboard) from navigation to the menu layer.
+- Nav: Fixed a tap on AltGR (e.g. German keyboard) from navigating to the menu layer.
 - DragScalar, InputScalar, SliderScalar: Added support for u8/s8/u16/s16 data types.
   We are reusing function instances for larger types to reduce code size. (#643, #320, #708, #1011)
 - InputInt, InputFloat, InputScalar: Fix to keep the label of the +/- buttons centered when
@@ -63,6 +63,7 @@ Other Changes:
 - Log/Capture: Fixed LogXXX functions 'auto_open_depth' parameter being treated as an absolute
   tree depth instead of a relative one.
 - Log/Capture: Fixed CollapsingHeader trailing ascii representation being "#" instead of "##".
+- Misc: Asserting in NewFrame() if style.WindowMinSize is zero or smaller than (1.0f,1.0f).
 - Examples: OpenGL: Fix for OSX not supporting OpenGL 4.5, we don't try to read GL_CLIP_ORIGIN
   even if the OpenGL headers/loader happens to define the value. (#2366, #2186)
 - Examples: Allegro: Added support for touch events (emulating mouse). (#2219) [@dos1]

imgui.cpp

@@ -1480,27 +1480,27 @@ ImU32 ImHashData(const void* data_p, size_t data_size, ImU32 seed)
 // - If we reach ### in the string we discard the hash so far and reset to the seed.
 // - We don't do 'current += 2; continue;' after handling ### to keep the code smaller/faster (measured ~10% diff in Debug build)
 // FIXME-OPT: Replace with e.g. FNV1a hash? CRC32 pretty much randomly access 1KB. Need to do proper measurements.
-ImU32 ImHashStr(const char* data, size_t data_size, ImU32 seed)
+ImU32 ImHashStr(const char* data_p, size_t data_size, ImU32 seed)
 {
     seed = ~seed;
     ImU32 crc = seed;
-    const unsigned char* src = (const unsigned char*)data;
+    const unsigned char* data = (const unsigned char*)data_p;
     const ImU32* crc32_lut = GCrc32LookupTable;
     if (data_size != 0)
     {
         while (data_size-- != 0)
         {
-            unsigned char c = *src++;
-            if (c == '#' && src[0] == '#' && src[1] == '#')
+            unsigned char c = *data++;
+            if (c == '#' && data_size >= 2 && data[0] == '#' && data[1] == '#')
                 crc = seed;
             crc = (crc >> 8) ^ crc32_lut[(crc & 0xFF) ^ c];
         }
     }
     else
     {
-        while (unsigned char c = *src++)
+        while (unsigned char c = *data++)
         {
-            if (c == '#' && src[0] == '#' && src[1] == '#')
+            if (c == '#' && data[0] == '#' && data[1] == '#')
                 crc = seed;
             crc = (crc >> 8) ^ crc32_lut[(crc & 0xFF) ^ c];
         }
@@ -3368,12 +3368,13 @@ void ImGui::NewFrame()
     // (We pass an error message in the assert expression to make it visible to programmers who are not using a debugger, as most assert handlers display their argument)
     IM_ASSERT(g.Initialized);
     IM_ASSERT((g.IO.DeltaTime > 0.0f || g.FrameCount == 0)              && "Need a positive DeltaTime!");
+    IM_ASSERT((g.FrameCount == 0 || g.FrameCountEnded == g.FrameCount)  && "Forgot to call Render() or EndFrame() at the end of the previous frame?");
     IM_ASSERT(g.IO.DisplaySize.x >= 0.0f && g.IO.DisplaySize.y >= 0.0f  && "Invalid DisplaySize value!");
     IM_ASSERT(g.IO.Fonts->Fonts.Size > 0                                && "Font Atlas not built. Did you call io.Fonts->GetTexDataAsRGBA32() / GetTexDataAsAlpha8() ?");
     IM_ASSERT(g.IO.Fonts->Fonts[0]->IsLoaded()                          && "Font Atlas not built. Did you call io.Fonts->GetTexDataAsRGBA32() / GetTexDataAsAlpha8() ?");
     IM_ASSERT(g.Style.CurveTessellationTol > 0.0f                       && "Invalid style setting!");
     IM_ASSERT(g.Style.Alpha >= 0.0f && g.Style.Alpha <= 1.0f            && "Invalid style setting. Alpha cannot be negative (allows us to avoid a few clamps in color computations)!");
-    IM_ASSERT((g.FrameCount == 0 || g.FrameCountEnded == g.FrameCount)  && "Forgot to call Render() or EndFrame() at the end of the previous frame?");
+    IM_ASSERT(g.Style.WindowMinSize.x >= 1.0f && g.Style.WindowMinSize.y >= 1.0f && "Invalid style setting.");
     for (int n = 0; n < ImGuiKey_COUNT; n++)
         IM_ASSERT(g.IO.KeyMap[n] >= -1 && g.IO.KeyMap[n] < IM_ARRAYSIZE(g.IO.KeysDown) && "io.KeyMap[] contains an out of bound value (need to be 0..512, or -1 for unmapped key)");
 

imgui_demo.cpp

@@ -1460,20 +1460,23 @@ static void ShowDemoWindowWidgets()
         static int item_type = 1;
         static bool b = false;
         static float col4f[4] = { 1.0f, 0.5, 0.0f, 1.0f };
+        static char str[16] = {};
         ImGui::RadioButton("Text", &item_type, 0);
         ImGui::RadioButton("Button", &item_type, 1);
         ImGui::RadioButton("Checkbox", &item_type, 2);
         ImGui::RadioButton("SliderFloat", &item_type, 3);
-        ImGui::RadioButton("ColorEdit4", &item_type, 4);
-        ImGui::RadioButton("ListBox", &item_type, 5);
+        ImGui::RadioButton("InputText", &item_type, 4);
+        ImGui::RadioButton("ColorEdit4", &item_type, 5);
+        ImGui::RadioButton("ListBox", &item_type, 6);
         ImGui::Separator();
         bool ret = false;
         if (item_type == 0) { ImGui::Text("ITEM: Text"); }                                              // Testing text items with no identifier/interaction
         if (item_type == 1) { ret = ImGui::Button("ITEM: Button"); }                                    // Testing button
         if (item_type == 2) { ret = ImGui::Checkbox("ITEM: Checkbox", &b); }                            // Testing checkbox
         if (item_type == 3) { ret = ImGui::SliderFloat("ITEM: SliderFloat", &col4f[0], 0.0f, 1.0f); }   // Testing basic item
-        if (item_type == 4) { ret = ImGui::ColorEdit4("ITEM: ColorEdit4", col4f); }                     // Testing multi-component items (IsItemXXX flags are reported merged)
-        if (item_type == 5) { const char* items[] = { "Apple", "Banana", "Cherry", "Kiwi" }; static int current = 1; ret = ImGui::ListBox("ITEM: ListBox", &current, items, IM_ARRAYSIZE(items), IM_ARRAYSIZE(items)); }
+        if (item_type == 4) { ret = ImGui::InputText("ITEM: InputText", &str[0], IM_ARRAYSIZE(str)); }  // Testing input text (which handles tabbing)
+        if (item_type == 5) { ret = ImGui::ColorEdit4("ITEM: ColorEdit4", col4f); }                     // Testing multi-component items (IsItemXXX flags are reported merged)
+        if (item_type == 6) { const char* items[] = { "Apple", "Banana", "Cherry", "Kiwi" }; static int current = 1; ret = ImGui::ListBox("ITEM: ListBox", &current, items, IM_ARRAYSIZE(items), IM_ARRAYSIZE(items)); }
         ImGui::BulletText(
             "Return value = %d\n"
             "IsItemFocused() = %d\n"