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InputTextWithHint: Fix for Password fields. Update changelog, demo. (#2400)

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This commit is contained in:
omar
2019-03-06 17:33:24 +01:00
parent ab80ee6453
commit c779fbb651
3 changed files with 30 additions and 38 deletions
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4
docs/CHANGELOG.txt
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@@ -45,7 +45,9 @@ Other Changes:
- Added GetBackgroundDrawList() helper to quickly get access to a ImDrawList that will be rendered
behind every other windows. (#2391)
- 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)
We are reusing function instances of larger types to reduce code size. (#643, #320, #708, #1011)
- Added InputTextWithHint() to display a description/hint in the text box when no text
has been entered. (#2400) [@Organic-Code, @ocornut]
- Nav: Fixed a tap on AltGR (e.g. German keyboard) from navigating to the menu layer.
- Nav: Fixed Ctrl+Tab keeping active InputText() of a previous window active after the switch. (#2380)
- Fixed IsItemDeactivated()/IsItemDeactivatedAfterEdit() from not correctly returning true

4
imgui_demo.cpp
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@@ -770,6 +770,7 @@ static void ShowDemoWindowWidgets()
// Expose flags as checkbox for the demo
static ImGuiComboFlags flags = 0;
ImGui::CheckboxFlags("ImGuiComboFlags_PopupAlignLeft", (unsigned int*)&flags, ImGuiComboFlags_PopupAlignLeft);
ImGui::SameLine(); ShowHelpMarker("Only makes a difference if the popup is larger than the combo");
if (ImGui::CheckboxFlags("ImGuiComboFlags_NoArrowButton", (unsigned int*)&flags, ImGuiComboFlags_NoArrowButton))
flags &= ~ImGuiComboFlags_NoPreview; // Clear the other flag, as we cannot combine both
if (ImGui::CheckboxFlags("ImGuiComboFlags_NoPreview", (unsigned int*)&flags, ImGuiComboFlags_NoPreview))
@@ -934,6 +935,7 @@ static void ShowDemoWindowWidgets()
static char bufpass[64] = "password123";
ImGui::InputText("password", bufpass, 64, ImGuiInputTextFlags_Password | ImGuiInputTextFlags_CharsNoBlank);
ImGui::SameLine(); ShowHelpMarker("Display all characters as '*'.\nDisable clipboard cut and copy.\nDisable logging.\n");
ImGui::InputTextWithHint("password (w/ hint)", "<password>", bufpass, 64, ImGuiInputTextFlags_Password | ImGuiInputTextFlags_CharsNoBlank);
ImGui::InputText("password (clear)", bufpass, 64, ImGuiInputTextFlags_CharsNoBlank);
ImGui::TreePop();
@@ -2177,7 +2179,7 @@ static void ShowDemoWindowPopups()
// We can also use OpenPopupOnItemClick() which is the same as BeginPopupContextItem() but without the Begin call.
// So here we will make it that clicking on the text field with the right mouse button (1) will toggle the visibility of the popup above.
ImGui::Text("(You can also right-click me to the same popup as above.)");
ImGui::Text("(You can also right-click me to open the same popup as above.)");
ImGui::OpenPopupOnItemClick("item context menu", 1);
// When used after an item that has an ID (here the Button), we can skip providing an ID to BeginPopupContextItem().

58
imgui_widgets.cpp
View File

@@ -2904,6 +2904,7 @@ bool ImGui::InputTextMultiline(const char* label, char* buf, size_t buf_size, co
bool ImGui::InputTextWithHint(const char* label, const char* hint, char* buf, size_t buf_size, ImGuiInputTextFlags flags, ImGuiInputTextCallback callback, void* user_data)
{
IM_ASSERT(!(flags & ImGuiInputTextFlags_Multiline)); // call InputTextMultiline()
return InputTextEx(label, hint, buf, (int)buf_size, ImVec2(0, 0), flags, callback, user_data);
}
@@ -3364,8 +3365,18 @@ bool ImGui::InputTextEx(const char* label, const char* hint, char* buf, int buf_
bool value_changed = false;
bool enter_pressed = false;
// Select the buffer to render.
const char* buf_display = ((render_cursor || render_selection || g.ActiveId == id) && !is_readonly && state->TextAIsValid) ? state->TextA.Data : buf;
const char* buf_display_end = NULL; // We have specialized paths below for setting the length
const bool is_displaying_hint = (hint != NULL && buf_display[0] == 0);
if (is_displaying_hint)
{
buf_display = hint;
buf_display_end = hint + strlen(hint);
}
// Password pushes a temporary font with only a fallback glyph
if (is_password)
if (is_password && !is_displaying_hint)
{
const ImFontGlyph* glyph = g.Font->FindGlyph('*');
ImFont* password_font = &g.InputTextPasswordFont;
@@ -3729,14 +3740,14 @@ bool ImGui::InputTextEx(const char* label, const char* hint, char* buf, int buf_
// without any carriage return, which would makes ImFont::RenderText() reserve too many vertices and probably crash. Avoid it altogether.
// Note that we only use this limit on single-line InputText(), so a pathologically large line on a InputTextMultiline() would still crash.
const int buf_display_max_length = 2 * 1024 * 1024;
const char* buf_display = NULL;
const char* buf_display_end = NULL;
ImGuiCol text_color = ImGuiCol_COUNT;
// Render text. We currently only render selection when the widget is active or while scrolling.
// FIXME: We could remove the '&& render_cursor' to keep rendering selection when inactive.
if (render_cursor || render_selection)
{
if (!is_displaying_hint)
buf_display_end = buf_display + state->CurLenA;
// Render text (with cursor and selection)
// This is going to be messy. We need to:
// - Display the text (this alone can be more easily clipped)
@@ -3868,25 +3879,11 @@ bool ImGui::InputTextEx(const char* label, const char* hint, char* buf, int buf_
}
}
if (state->CurLenA != 0 || hint == NULL)
{
buf_display = (!is_readonly && state->TextAIsValid) ? state->TextA.Data : buf;
buf_display_end = buf_display + state->CurLenA;
text_color = ImGuiCol_Text;
}
else
{
buf_display = hint;
buf_display_end = hint + strlen(hint);
text_color = ImGuiCol_TextDisabled;
}
// We test for 'buf_display_max_length' as a way to avoid some pathological cases (e.g. single-line 1 MB string) which would make ImDrawList crash.
if (is_multiline || (buf_display_end - buf_display) < buf_display_max_length)
{
IM_ASSERT(text_color != ImGuiCol_COUNT);
draw_window->DrawList->AddText(g.Font, g.FontSize, draw_pos - draw_scroll, GetColorU32(text_color), buf_display, buf_display_end, 0.0f, is_multiline ? NULL : &clip_rect);
ImU32 col = GetColorU32(is_displaying_hint ? ImGuiCol_TextDisabled : ImGuiCol_Text);
draw_window->DrawList->AddText(g.Font, g.FontSize, draw_pos - draw_scroll, col, buf_display, buf_display_end, 0.0f, is_multiline ? NULL : &clip_rect);
}
// Draw blinking cursor
@@ -3907,26 +3904,17 @@ bool ImGui::InputTextEx(const char* label, const char* hint, char* buf, int buf_
else
{
// Render text only (no selection, no cursor)
text_color = ImGuiCol_Text;
buf_display = (g.ActiveId == id && !is_readonly && state->TextAIsValid) ? state->TextA.Data : buf;
if (is_multiline)
text_size = ImVec2(size.x, InputTextCalcTextLenAndLineCount(buf_display, &buf_display_end) * g.FontSize); // We don't need width
else if (g.ActiveId == id)
else if (!is_displaying_hint && g.ActiveId == id)
buf_display_end = buf_display + state->CurLenA;
else
else if (!is_displaying_hint)
buf_display_end = buf_display + strlen(buf_display);
if (buf_display_end == buf_display && hint != NULL)
{
buf_display = hint;
buf_display_end = buf_display + strlen(buf_display);
text_color = ImGuiCol_TextDisabled;
}
if (is_multiline || (buf_display_end - buf_display) < buf_display_max_length)
{
IM_ASSERT(text_color != ImGuiCol_COUNT);
draw_window->DrawList->AddText(g.Font, g.FontSize, draw_pos, GetColorU32(text_color), buf_display, buf_display_end, 0.0f, is_multiline ? NULL : &clip_rect);
ImU32 col = GetColorU32(is_displaying_hint ? ImGuiCol_TextDisabled : ImGuiCol_Text);
draw_window->DrawList->AddText(g.Font, g.FontSize, draw_pos, col, buf_display, buf_display_end, 0.0f, is_multiline ? NULL : &clip_rect);
}
}
@@ -3937,11 +3925,11 @@ bool ImGui::InputTextEx(const char* label, const char* hint, char* buf, int buf_
EndGroup();
}
if (is_password)
if (is_password && !is_displaying_hint)
PopFont();
// Log as text
if (g.LogEnabled && !is_password)
if (g.LogEnabled && !(is_password && !is_displaying_hint))
LogRenderedText(&draw_pos, buf_display, buf_display_end);
if (label_size.x > 0)