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Default "local only" clipboard handler on non-Windows platforms

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This commit is contained in:
ocornut 2014-08-14 15:03:10 +01:00
parent 309ff44579
commit a830037eab
3 changed files with 57 additions and 36 deletions
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72
imgui.cpp
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@ -146,7 +146,6 @@
- filters: handle wildcards (with implicit leading/trailing *), regexps
- shortcuts: add a shortcut api, e.g. parse "&Save" and/or "Save (CTRL+S)", pass in to widgets or provide simple ways to use (button=activate, input=focus)
- keyboard: full keyboard navigation and focus
- clipboard: add a default "local" implementation of clipboard functions (user will only need to override them to connect to OS clipboard)
- misc: not thread-safe
- optimisation/render: use indexed rendering
- optimisation/render: move clip-rect to vertex data? would allow merging all commands
@ -154,8 +153,6 @@
- optimisation: turn some the various stack vectors into statically-sized arrays
- optimisation: better clipping for multi-component widgets
- optimisation: specialize for height based clipping first (assume widgets never go up + height tests before width tests?)
- optimisation/portability: provide ImVector style implementation
- optimisation/portability: remove dependency on <algorithm>
*/
#include "imgui.h"
@ -198,15 +195,11 @@ static ImGuiWindow* FindHoveredWindow(ImVec2 pos, bool excluding_childs);
}; // namespace ImGui
//-----------------------------------------------------------------------------
// Platform dependant helpers
// Platform dependant default implementations
//-----------------------------------------------------------------------------
#ifdef _MSC_VER
#ifndef IMGUI_DONT_IMPLEMENT_WINDOWS_CLIPBOARD_FUNCTIONS
static const char* GetClipboardTextFn_DefaultImplWindows();
static void SetClipboardTextFn_DefaultImplWindows(const char* text, const char* text_end);
#endif
#endif
static const char* GetClipboardTextFn_DefaultImpl();
static void SetClipboardTextFn_DefaultImpl(const char* text, const char* text_end);
//-----------------------------------------------------------------------------
// User facing structures
@ -282,12 +275,8 @@ ImGuiIO::ImGuiIO()
MouseDoubleClickMaxDist = 6.0f;
// Platform dependant default implementations
#ifdef _MSC_VER
#ifndef IMGUI_DONT_IMPLEMENT_WINDOWS_CLIPBOARD_FUNCTIONS
GetClipboardTextFn = GetClipboardTextFn_DefaultImplWindows;
SetClipboardTextFn = SetClipboardTextFn_DefaultImplWindows;
#endif
#endif
GetClipboardTextFn = GetClipboardTextFn_DefaultImpl;
SetClipboardTextFn = SetClipboardTextFn_DefaultImpl;
}
// Pass in translated ASCII characters for text input.
@ -630,6 +619,7 @@ struct ImGuiState
ImGuiStorage ColorEditModeStorage; // for user selection
ImGuiID ActiveComboID;
char Tooltip[1024];
char* PrivateClipboard; // if no custom clipboard handler is defined
// Logging
bool LogEnabled;
@ -653,6 +643,7 @@ struct ImGuiState
SliderAsInputTextId = 0;
ActiveComboID = 0;
memset(Tooltip, 0, sizeof(Tooltip));
PrivateClipboard = NULL;
LogEnabled = false;
LogFile = NULL;
LogAutoExpandMaxDepth = 2;
@ -1313,6 +1304,12 @@ void Shutdown()
g.IO.Font = NULL;
}
if (g.PrivateClipboard)
{
free(g.PrivateClipboard);
g.PrivateClipboard = NULL;
}
g.Initialized = false;
}
@ -5201,13 +5198,13 @@ void ImBitmapFont::RenderText(float size, ImVec2 pos, ImU32 col, const ImVec4& c
// PLATFORM DEPENDANT HELPERS
//-----------------------------------------------------------------------------
#ifdef _MSC_VER
#ifndef IMGUI_DONT_IMPLEMENT_WINDOWS_CLIPBOARD_FUNCTIONS
#if defined(_MSC_VER) && !defined(IMGUI_DISABLE_WIN32_DEFAULT_CLIPBOARD_FUNCS)
#define WIN32_LEAN_AND_MEAN
#include <windows.h>
static const char* GetClipboardTextFn_DefaultImplWindows()
// Win32 API clipboard implementation
static const char* GetClipboardTextFn_DefaultImpl()
{
static char* buf_local = NULL;
if (buf_local)
@ -5215,47 +5212,62 @@ static const char* GetClipboardTextFn_DefaultImplWindows()
free(buf_local);
buf_local = NULL;
}
if (!OpenClipboard(NULL))
return NULL;
HANDLE buf_handle = GetClipboardData(CF_TEXT);
if (buf_handle == NULL)
return NULL;
if (char* buf_global = (char*)GlobalLock(buf_handle))
buf_local = strdup(buf_global);
GlobalUnlock(buf_handle);
CloseClipboard();
return buf_local;
}
static void SetClipboardTextFn_DefaultImplWindows(const char* text, const char* text_end)
// Win32 API clipboard implementation
static void SetClipboardTextFn_DefaultImpl(const char* text, const char* text_end)
{
if (!OpenClipboard(NULL))
return;
if (!text_end)
text_end = text + strlen(text);
const int buf_length = (text_end - text) + 1;
HGLOBAL buf_handle = GlobalAlloc(GMEM_MOVEABLE, buf_length * sizeof(char));
if (buf_handle == NULL)
return;
char* buf_global = (char *)GlobalLock(buf_handle);
memcpy(buf_global, text, text_end - text);
buf_global[text_end - text] = 0;
GlobalUnlock(buf_handle);
EmptyClipboard();
SetClipboardData(CF_TEXT, buf_handle);
CloseClipboard();
}
#endif // #ifndef IMGUI_DONT_IMPLEMENT_WINDOWS_CLIPBOARD_FUNCTIONS
#endif // #ifdef _MSC_VER
#else
// Local ImGui-only clipboard implementation, if user hasn't defined better clipboard handlers
static const char* GetClipboardTextFn_DefaultImpl()
{
return GImGui.PrivateClipboard;
}
// Local ImGui-only clipboard implementation, if user hasn't defined better clipboard handlers
static void SetClipboardTextFn_DefaultImpl(const char* text, const char* text_end)
{
if (GImGui.PrivateClipboard)
{
free(GImGui.PrivateClipboard);
GImGui.PrivateClipboard = NULL;
}
if (!text_end)
text_end = text + strlen(text);
GImGui.PrivateClipboard = (char*)malloc(text_end - text + 1);
memcpy(GImGui.PrivateClipboard, text, text_end - text);
GImGui.PrivateClipboard[text_end - text] = 0;
}
#endif
//-----------------------------------------------------------------------------
// HELP