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Combo: value label is properly clipped inside the closed combo frame

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This commit is contained in:
ocornut 2015-02-08 15:39:40 +00:00
parent 9596a2b4f1
commit 93917e76a6
1 changed files with 39 additions and 9 deletions
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48
imgui.cpp
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@ -267,6 +267,7 @@
- columns: columns header to act as button (~sort op) and allow resize/reorder
- columns: user specify columns size
- combo: turn child handling code into pop up helper
- combo: layer conflict with other child windows
- list selection, concept of a selectable "block" (that can be multiple widgets)
! menubar, menus
- tabs
@ -397,10 +398,13 @@ using namespace IMGUI_STB_NAMESPACE;
// Forward Declarations
//-------------------------------------------------------------------------
struct ImGuiAabb;
static bool ButtonBehaviour(const ImGuiAabb& bb, const ImGuiID& id, bool* out_hovered, bool* out_held, bool allow_key_modifiers, bool repeat = false);
static void LogText(const ImVec2& ref_pos, const char* text, const char* text_end = NULL);
static void RenderText(ImVec2 pos, const char* text, const char* text_end = NULL, bool hide_text_after_hash = true, float wrap_width = 0.0f);
static void RenderTextClipped(ImVec2 pos, const char* text, const char* text_end, const ImVec2* text_size, const ImGuiAabb& clip_aabb);
static void RenderFrame(ImVec2 p_min, ImVec2 p_max, ImU32 fill_col, bool border = true, float rounding = 0.0f);
static void RenderCollapseTriangle(ImVec2 p_min, bool opened, float scale = 1.0f, bool shadow = false);
@ -2099,7 +2103,36 @@ static void RenderText(ImVec2 pos, const char* text, const char* text_end, bool
if (text_len > 0)
{
// Render
window->DrawList->AddText(window->Font(), window->FontSize(), pos, window->Color(ImGuiCol_Text), text, text + text_len, wrap_width);
window->DrawList->AddText(window->Font(), window->FontSize(), pos, window->Color(ImGuiCol_Text), text, text_display_end, wrap_width);
// Log as text. We split text into individual lines to add current tree level padding
if (g.LogEnabled)
LogText(pos, text, text_display_end);
}
}
static void RenderTextClipped(ImVec2 pos, const char* text, const char* text_end, const ImVec2* text_size_arg, const ImGuiAabb& clip_rect)
{
ImGuiState& g = *GImGui;
ImGuiWindow* window = GetCurrentWindow();
// Hide anything after a '##' string
const char* text_display_end = FindTextDisplayEnd(text, text_end);
const int text_len = (int)(text_display_end - text);
if (text_len > 0)
{
const ImVec2 text_size = text_size_arg ? *text_size_arg : ImGui::CalcTextSize(text, text_display_end, false, 0.0f);
// FIMXE-OPT: Perform software clipping at this point instead of pushing a clipping rectangle
const bool need_clipping = clip_rect.GetWidth() < text_size.x || clip_rect.GetHeight() < text_size.y;
if (need_clipping)
PushClipRect(ImVec4(clip_rect.Min.x, clip_rect.Min.y, clip_rect.Max.x, clip_rect.Max.y)); // Caller usually pass a non-padding frame - so extraneous text draw over the padding region which gives an indication that it is being clipped.
// Render
window->DrawList->AddText(window->Font(), window->FontSize(), pos, window->Color(ImGuiCol_Text), text, text_display_end, 0.0f);
if (need_clipping)
PopClipRect();
// Log as text. We split text into individual lines to add current tree level padding
if (g.LogEnabled)
@ -3720,12 +3753,8 @@ bool ImGui::Button(const char* label, const ImVec2& size_arg, bool repeat_when_h
const ImU32 col = window->Color((hovered && held) ? ImGuiCol_ButtonActive : hovered ? ImGuiCol_ButtonHovered : ImGuiCol_Button);
RenderFrame(bb.Min, bb.Max, col, true, style.FrameRounding);
if (size.x < text_size.x || size.y < text_size.y)
PushClipRect(ImVec4(bb.Min.x+style.FramePadding.x, bb.Min.y+style.FramePadding.y, bb.Max.x, bb.Max.y-style.FramePadding.y)); // Allow extra to draw over the horizontal padding to make it visible that text doesn't fit
const ImVec2 off = ImVec2(ImMax(0.0f, size.x - text_size.x) * 0.5f, ImMax(0.0f, size.y - text_size.y) * 0.5f);
RenderText(bb.Min + style.FramePadding + off, label);
if (size.x < text_size.x || size.y < text_size.y)
PopClipRect();
const ImVec2 off = ImVec2(ImMax(0.0f, size.x - text_size.x) * 0.5f, ImMax(0.0f, size.y - text_size.y) * 0.5f); // Center (only applies if we explicitly gave a size bigger than the text size, which isn't the common path)
RenderTextClipped(bb.Min + style.FramePadding + off, label, NULL, &text_size, bb); // Render clip (only applies if we explicitly gave a size smaller than the text size, which isn't the commmon path)
return pressed;
}
@ -4998,7 +5027,7 @@ void ImGuiTextEditState::RenderTextScrolledClipped(ImFont* font, float font_size
const float clip_end = (text_end[0] != '\0' && text_end > text_start) ? symbol_w : 0.0f;
// Draw text
RenderText(pos+ImVec2(clip_begin,0), text_start+(clip_begin>0.0f?1:0), text_end-(clip_end>0.0f?1:0), false);//, &text_params_with_clipping);
RenderText(pos+ImVec2(clip_begin,0), text_start+(clip_begin>0.0f?1:0), text_end-(clip_end>0.0f?1:0), false);
// Draw the clip symbol
const char s[2] = {symbol_c,'\0'};
@ -5552,6 +5581,7 @@ bool ImGui::Combo(const char* label, int* current_item, bool (*items_getter)(voi
const bool hovered = IsHovered(frame_bb, id);
bool value_changed = false;
const ImGuiAabb value_bb(frame_bb.Min, frame_bb.Max - ImVec2(arrow_size, 0.0f));
RenderFrame(frame_bb.Min, frame_bb.Max, window->Color(ImGuiCol_FrameBg), true, style.FrameRounding);
RenderFrame(ImVec2(frame_bb.Max.x-arrow_size, frame_bb.Min.y), frame_bb.Max, window->Color(hovered ? ImGuiCol_ButtonHovered : ImGuiCol_Button), true, style.FrameRounding); // FIXME-ROUNDING
RenderCollapseTriangle(ImVec2(frame_bb.Max.x-arrow_size, frame_bb.Min.y) + style.FramePadding, true);
@ -5560,7 +5590,7 @@ bool ImGui::Combo(const char* label, int* current_item, bool (*items_getter)(voi
{
const char* item_text;
if (items_getter(data, *current_item, &item_text))
RenderText(frame_bb.Min + style.FramePadding, item_text, NULL, false);
RenderTextClipped(frame_bb.Min + style.FramePadding, item_text, NULL, NULL, value_bb);
}
// Empty text doesn't add padding