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Fixed animated window titles from being updated when displayed in the CTRL+Tab list. + Adding overkill helpers for reusing buffers. (#787)

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omar
2019-01-07 22:46:42 +01:00
parent 1ae7f88495
commit 3997e8b555
3 changed files with 37 additions and 5 deletions
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39
imgui.cpp
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@@ -1259,11 +1259,25 @@ void ImStrncpy(char* dst, const char* src, size_t count)
dst[count-1] = 0;
}
char* ImStrdup(const char *str)
char* ImStrdup(const char* str)
{
size_t len = strlen(str) + 1;
void* buf = ImGui::MemAlloc(len);
return (char*)memcpy(buf, (const void*)str, len);
size_t len = strlen(str);
void* buf = ImGui::MemAlloc(len + 1);
return (char*)memcpy(buf, (const void*)str, len + 1);
}
char* ImStrdupcpy(char* dst, size_t* p_dst_size, const char* src)
{
size_t dst_buf_size = p_dst_size ? *p_dst_size : strlen(dst) + 1;
size_t src_size = strlen(src) + 1;
if (dst_buf_size < src_size)
{
ImGui::MemFree(dst);
dst = (char*)ImGui::MemAlloc(src_size);
if (p_dst_size)
*p_dst_size = src_size;
}
return (char*)memcpy(dst, (const void*)src, src_size);
}
const char* ImStrchrRange(const char* str, const char* str_end, char c)
@@ -1367,7 +1381,9 @@ int ImFormatStringV(char* buf, size_t buf_size, const char* fmt, va_list args)
}
#endif // #ifdef IMGUI_DISABLE_FORMAT_STRING_FUNCTIONS
// Pass data_size==0 for zero-terminated strings
// Pass data_size == 0 for zero-terminated strings, data_size > 0 for non-string data.
// Pay attention that data_size==0 will yield different results than passing strlen(data) because the zero-terminated codepath handles ###.
// This should technically be split into two distinct functions (ImHashData/ImHashStr), perhaps once we remove the silly static variable.
// FIXME-OPT: Replace with e.g. FNV1a hash? CRC32 pretty much randomly access 1KB. Need to do proper measurements.
ImU32 ImHash(const void* data, int data_size, ImU32 seed)
{
@@ -2391,6 +2407,7 @@ ImGuiWindow::ImGuiWindow(ImGuiContext* context, const char* name)
WindowPadding = ImVec2(0.0f, 0.0f);
WindowRounding = 0.0f;
WindowBorderSize = 0.0f;
NameBufLen = (int)strlen(name) + 1;
MoveId = GetID("#MOVE");
ChildId = 0;
Scroll = ImVec2(0.0f, 0.0f);
@@ -4802,6 +4819,18 @@ bool ImGui::Begin(const char* name, bool* p_open, ImGuiWindowFlags flags)
window->LastFrameActive = current_frame;
window->IDStack.resize(1);
// Update stored window name when it changes (which can _only_ happen with the "###" operator, so the ID would stay unchanged).
// The title bar always display the 'name' parameter, so we only update the string storage if it needs to be visible to the end-user elsewhere.
bool window_title_visible_elsewhere = false;
if (g.NavWindowingList != NULL && (window->Flags & ImGuiWindowFlags_NoNavFocus) == 0) // Window titles visible when using CTRL+TAB
window_title_visible_elsewhere = true;
if (window_title_visible_elsewhere && !window_just_created && strcmp(name, window->Name) != 0)
{
size_t buf_len = (size_t)window->NameBufLen;
window->Name = ImStrdupcpy(window->Name, &buf_len, name);
window->NameBufLen = (int)buf_len;
}
// UPDATE CONTENTS SIZE, UPDATE HIDDEN STATUS
// Update contents size from last frame for auto-fitting (or use explicit size)