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Settings: Basic internal refactor to have functions for saving from/to memory (not exposed)

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This commit is contained in:
omar 2017-11-27 19:01:40 +01:00
parent 532f564fd3
commit ade09b9e3c
1 changed files with 36 additions and 16 deletions
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52
imgui.cpp
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@ -646,7 +646,9 @@ static void AddWindowToSortedBuffer(ImVector<ImGuiWindow*>& out_sort
static ImGuiIniData* FindWindowSettings(const char* name); static ImGuiIniData* FindWindowSettings(const char* name);
static ImGuiIniData* AddWindowSettings(const char* name); static ImGuiIniData* AddWindowSettings(const char* name);
static void LoadIniSettingsFromDisk(const char* ini_filename); static void LoadIniSettingsFromDisk(const char* ini_filename);
static void LoadIniSettingsFromMemory(const char* buf, const char* buf_end = NULL);
static void SaveIniSettingsToDisk(const char* ini_filename); static void SaveIniSettingsToDisk(const char* ini_filename);
static void SaveIniSettingsToMemory(ImVector<char>& out_buf);
static void MarkIniSettingsDirty(ImGuiWindow* window); static void MarkIniSettingsDirty(ImGuiWindow* window);
static ImRect GetVisibleRect(); static ImRect GetVisibleRect();
@ -2562,18 +2564,23 @@ static ImGuiIniData* AddWindowSettings(const char* name)
// FIXME: Write something less rubbish // FIXME: Write something less rubbish
static void LoadIniSettingsFromDisk(const char* ini_filename) static void LoadIniSettingsFromDisk(const char* ini_filename)
{ {
ImGuiContext& g = *GImGui;
if (!ini_filename) if (!ini_filename)
return; return;
int file_size; int file_size;
char* file_data = (char*)ImFileLoadToMemory(ini_filename, "rb", &file_size, 1); char* file_data = (char*)ImFileLoadToMemory(ini_filename, "rb", &file_size, 1);
if (!file_data) if (!file_data)
return; return;
LoadIniSettingsFromMemory(file_data, file_data + file_size);
ImGui::MemFree(file_data);
}
static void LoadIniSettingsFromMemory(const char* buf, const char* buf_end)
{
ImGuiContext& g = *GImGui;
if (!buf_end)
buf_end = buf + strlen(buf);
ImGuiIniData* settings = NULL; ImGuiIniData* settings = NULL;
const char* buf_end = file_data + file_size; for (const char* line_start = buf; line_start < buf_end; )
for (const char* line_start = file_data; line_start < buf_end; )
{ {
const char* line_end = line_start; const char* line_end = line_start;
while (line_end < buf_end && *line_end != '\n' && *line_end != '\r') while (line_end < buf_end && *line_end != '\n' && *line_end != '\r')
@ -2601,8 +2608,6 @@ static void LoadIniSettingsFromDisk(const char* ini_filename)
line_start = line_end+1; line_start = line_end+1;
} }
ImGui::MemFree(file_data);
} }
static void SaveIniSettingsToDisk(const char* ini_filename) static void SaveIniSettingsToDisk(const char* ini_filename)
@ -2612,6 +2617,22 @@ static void SaveIniSettingsToDisk(const char* ini_filename)
if (!ini_filename) if (!ini_filename)
return; return;
ImVector<char> buf;
SaveIniSettingsToMemory(buf);
// Write .ini file
FILE* f = ImFileOpen(ini_filename, "wt");
if (!f)
return;
fwrite(buf.Data, sizeof(char), (size_t)buf.Size, f);
fclose(f);
}
static void SaveIniSettingsToMemory(ImVector<char>& out_buf)
{
ImGuiContext& g = *GImGui;
g.SettingsDirtyTimer = 0.0f;
// Gather data from windows that were active during this session // Gather data from windows that were active during this session
for (int i = 0; i != g.Windows.Size; i++) for (int i = 0; i != g.Windows.Size; i++)
{ {
@ -2626,11 +2647,10 @@ static void SaveIniSettingsToDisk(const char* ini_filename)
settings->Collapsed = window->Collapsed; settings->Collapsed = window->Collapsed;
} }
// Write .ini file // Write a buffer
// If a window wasn't opened in this session we preserve its settings // If a window wasn't opened in this session we preserve its settings
FILE* f = ImFileOpen(ini_filename, "wt"); ImGuiTextBuffer buf;
if (!f) buf.reserve(g.Settings.Size * 64); // ballpark reserve
return;
for (int i = 0; i != g.Settings.Size; i++) for (int i = 0; i != g.Settings.Size; i++)
{ {
const ImGuiIniData* settings = &g.Settings[i]; const ImGuiIniData* settings = &g.Settings[i];
@ -2639,14 +2659,14 @@ static void SaveIniSettingsToDisk(const char* ini_filename)
const char* name = settings->Name; const char* name = settings->Name;
if (const char* p = strstr(name, "###")) // Skip to the "###" marker if any. We don't skip past to match the behavior of GetID() if (const char* p = strstr(name, "###")) // Skip to the "###" marker if any. We don't skip past to match the behavior of GetID()
name = p; name = p;
fprintf(f, "[%s]\n", name); buf.appendf("[%s]\n", name);
fprintf(f, "Pos=%d,%d\n", (int)settings->Pos.x, (int)settings->Pos.y); buf.appendf("Pos=%d,%d\n", (int)settings->Pos.x, (int)settings->Pos.y);
fprintf(f, "Size=%d,%d\n", (int)settings->Size.x, (int)settings->Size.y); buf.appendf("Size=%d,%d\n", (int)settings->Size.x, (int)settings->Size.y);
fprintf(f, "Collapsed=%d\n", settings->Collapsed); buf.appendf("Collapsed=%d\n", settings->Collapsed);
fprintf(f, "\n"); buf.appendf("\n");
} }
fclose(f); out_buf.swap(buf.Buf);
} }
static void MarkIniSettingsDirty(ImGuiWindow* window) static void MarkIniSettingsDirty(ImGuiWindow* window)